Preseed for Wheezy - Multi-disk Alternative

[ray]

>From what I have read, it looks like preseeding is only good for one
disk.  So I am looking for alternatives.

I would guess that it would be possible to write a script for partman. 
So I wonder how/where/when such a script should be run.  Any suggest on
scripting for partman would be appreciated.

Are there other ways to partition multiple drives during an automated
installation?

The installation is from a USB stick.

ray


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Re: Storage server [solved???]

[Paul E Condon]

'Solved' is not a proper description. Better to say that I have
discovered some serious misunderstanding on my part. It would be
a serious waste of other peoples time to extend this sub-thread
with a detailed explanation.

Sorry.
-- 
Paul E Condon   
pecon...@mesanetworks.net


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Re: Grub2 with multiple Debians

[Hendrik Boom]

On Fri, 14 Sep 2012 22:37:28 +0100, Joe wrote:

> On Fri, 14 Sep 2012 20:42:21 + (UTC)
> Hendrik Boom  wrote:
> 
>> On Fri, 14 Sep 2012 23:25:03 +0300, Andrei POPESCU wrote:
>> 
>> > On Vi, 14 sep 12, 17:12:38, Hendrik Boom wrote:
>> >> 
>> >> Of course, after I've made my copy (with slight changes to
>> >> /etc/fstab) I have two nearly identical sets of partitions, so it
>> >> may be tricky to tell them apart.  Is grub2 clever enough to figure
>> >> it all out anyway? And what data does it use to this end? (so I can
>> >> make sure it's right!)
>> > 
>> > UUIDs? What failure mode(s) do you have in mind, because I can't
>> > think of any.
>> 
>> It probably is os-prober that I mean.  The misconfiguration I have in
>> mind is matching one system's /boot with another systems's /.  I've had
>> it happen on a laptop sometime ago. and it sure messed up my upgrades. 
>> I have no idea how it happened, but it has made me paranoid.
>> 
>> 
> The problem is that update-grub rewrites /boot/grub/grub.cfg. It may be
> possible to specify roots and boots in /etc/grub.d/ (I do use a separate
> /boot, but I've never needed to try this) or alternatively it is
> perfectly possible to edit grub.cfg, but you need to remember to do so
> each time update-grub is run, before rebooting. More than once, I've
> known versions of grub not deal correctly with a separate /boot, so I've
> had to do this until the bug was fixed.

It might be that bug that fouled up my laptop.  Or I might have done it 
myself at some point.  Anyway, I've become paranoid about such things.
If the bug has been fixed, well, that'll be one less thing to go wrong 
when I upgrade.

Thanks for telling me that there was a bug, and that it was fixed.

> 
> Both update-grub and grub-mkconfig (which it calls) are scripts and
> possibly some kind of user warning could be appended to one of them.
> 
> Or perhaps if the backup copy were made to a second hard drive (trickier
> with a laptop) then os-prober could be trusted not to mix roots and
> boots between drives.



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Re: Grub2 with multiple Debians

[Hendrik Boom]

On Fri, 14 Sep 2012 23:06:42 +0200, lee wrote:

> Hendrik Boom  writes:
> 
>> It has been my practice when upgrading between Debian releases to make
>> bootable copies of the OS partitions on my hard drive so that if things
>> go badly wrong I still have a bootable system.
> 
> How did you make such copies?

Usually by tar piped into untar.  Sometimes supplemented by rdiff-copy in 
case anything changed during the copy.  This makes it easy to change the 
file system while I'm at it.  Occasionally useful.  No, I didn't use dd, 
or anything that might co[y the UUID.

> 
>> This wprked fine with LILO and GRUB 1, where I was in control of
>> configuratino files and could explicitly specify which root partitions
>> went with which boot partitions/
>>
>> But when installing grub2 to an MBR. all this is automated.  It looks
>> around on the available disks and figures out shoch partition goes with
>> which.
>>
>> Of course, after I've made my copy (with slight changes to /etc/fstab)
>> I have two nearly identical sets of partitions, so it may be tricky to
>> tell them apart.  Is grub2 clever enough to figure it all out anyway? 
>> And what data does it use to this end? (so I can make sure it's right!)
> 
> Are you referring to grub figuring it out when booting or to grub
> figuring it out while it's being installed?  (In any case, I don't know
> any of the answers ...)

Presumably while installing grub.  WHile booting, grub2 has precious few 
decisions to make -- it's pretty well all scripted from the configuration 
file.
 
> 
> There needs to be a way for grub to figure out where to look for its
> configuration.  Perhaps this information is stored in the MBR when
> installing grub.  In that case, you would have a problem when grub
> cannot find its configuration there anymore (like because the
> partitioning has changed) and maybe a problem if it finds the wrong
> configuration.



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Re: Migrate to 3TB disk

[Mark Allums]

On 9/14/2012 3:22 PM, Andrei POPESCU wrote:

On Vi, 14 sep 12, 17:22:36, Hendrik Boom wrote:


Which probably means building a new file system and copying all the
files.  Even if it's possible to upgrade in place, it would  probably
mean preserving the existing low-level structure, like 512-byte sectors
instead of 4K sectors.


There are docs about migrating ext3 to ext4.


Anybody have any input as to whether ext4 or xfs would offer better long-
term reliability?


There are factions devoted to each.  In the short term, either would do, 
although I favor ext4 due to the extremely large installed base (of ext? 
family). I don't think it will lack for maintenance. In the long term, I 
foresee btrfs becoming popular, based on its feature set and potential 
benefits.


If you are migrating from an ext? fs, it seems to make the most sense to 
me to go with ext4.



Both ext4 and xfs are under active development. The only contender would
be btrfs, which is still considered experimental.



Yes.  I think btrfs is not yet suitable for a system that is used 
heavily, as all the pieces of the puzzle are not in place yet.


XFS may be more reliable according to some criteria, but according to 
some people, it is more likely to suffer fs corruption in the event of a 
power outage or hardware failure or kernel crash.  This is a source of 
some fierce debating.


ext4 is relatively new, not having been considered stable for all that 
long, though it *has* been several kernels ago that it was considered 
stable.  Since before the release of Squeeze.


Six of one, half a dozen of the other, I think either XFS or ext4 would 
be a good choice.


Mark




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FN Key to Enable/Disable Touchpad

[Dr Beco]

Hi there,

The Touchpad key (FN + F3) that allows to enable/disable toutchpad is not
working in Debian Wheezy.

I have a DELL vostro v131, and KDE. Multimidia FN keys works nice, and
enable/disable wifi and bluetooth also works great.
I'm not sure about FN+F1 that changes monitor, but I'll find out soon.
Bright and keyboard light also works great.

Unfortunately, disable touchpad does not. It is a very important key for
those who type a lot.

Google found some discussions from 2010, but I saw no solution. Maybe it is
just a bug I should report?

Thanks!
Beco



-- 
Dr Beco

"I refuse to join any club that would have me as a member." (Groucho Marx)

Re: Storage server

[Kelly Clowers]

On Fri, Sep 14, 2012 at 2:51 PM, Stan Hoeppner  wrote:
> On 9/14/2012 11:29 AM, Kelly Clowers wrote:
>> On Thu, Sep 13, 2012 at 4:45 PM, Stan Hoeppner  
>> wrote:
>>> On 9/13/2012 5:20 AM, Veljko wrote:
 On Tue, Sep 11, 2012 at 08:34:51AM -0500, Stan Hoeppner wrote:
> One of the big reasons (other than cost) that I mentioned this card is
> that Adaptec tends to be more forgiving with non RAID specific
> (ERC/TLER) drives, and lists your Seagate 3TB drives as compatible.  LSI
> and other controllers will not work with these drives due to lack of
> RAID specific ERC/TLER.

 Those are really valuable informations. I wasn't aware that not all
 drives works with RAID cards.
>>>
>>> Consumer hard drives will not work with most RAID cards.  As a general
>>> rule, RAID cards require enterprise SATA drives or SAS drives.
>>
>> They don't work with real hardware RAID? How weird! Why is that?
>
> Surely you're pulling my leg Kelly, and already know the answer.
>
> If not, the answer is the ERC/TLER timeout period.  Nearly all hardware
> RAID controllers expect a drive to respond to a command within 10
> seconds or less.  If the drive must perform error recovery on a sector
> or group of sectors it must do so within this time limit.  If the drive
> takes longer than this period the controller will flag it as bad and
> kick it out of the array.  The assumption here is that a drive taking
> that long to respond has a problem and should be replaced.
>
> Most consumer drives have no such timeout limit.  They will churn
> forever attempting to recover an unreadable sector.  Thus routine errors
> on consumer drives often get them kicked instantly when used on read
> RAID controllers.

Why would I be pulling your leg? I have never had opportunity to work
with real raid cards. Nor have I ever heard anyone say that before.
The highest end I have used was I believe a Highpoint card, about
 ~$150 range, which was fakeRAID (and I believe the drives
attached to that were enterprise drives anyway)

Thanks for the info.

Kelly Clowers


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Re: Grub2 with multiple Debians

[Ralf Mardorf]

On Fri, 2012-09-14 at 22:37 +0100, Joe wrote:
> On Fri, 14 Sep 2012 20:42:21 + (UTC)
> Hendrik Boom  wrote:
> 
> > On Fri, 14 Sep 2012 23:25:03 +0300, Andrei POPESCU wrote:
> > 
> > > On Vi, 14 sep 12, 17:12:38, Hendrik Boom wrote:
> > >> 
> > >> Of course, after I've made my copy (with slight changes
> > >> to /etc/fstab) I have two nearly identical sets of partitions, so
> > >> it may be tricky to tell them apart.  Is grub2 clever enough to
> > >> figure it all out anyway? And what data does it use to this end?
> > >> (so I can make sure it's right!)
> > > 
> > > UUIDs? What failure mode(s) do you have in mind, because I can't
> > > think of any.
> > 
> > It probably is os-prober that I mean.  The misconfiguration I have in 
> > mind is matching one system's /boot with another systems's /.  I've
> > had it happen on a laptop sometime ago. and it sure messed up my
> > upgrades.  I have no idea how it happened, but it has made me
> > paranoid.
> > 
> 
> The problem is that update-grub rewrites /boot/grub/grub.cfg. It may be
> possible to specify roots and boots in /etc/grub.d/ (I do use a
> separate /boot, but I've never needed to try this) or alternatively it
> is perfectly possible to edit grub.cfg, but you need to remember to do
> so each time update-grub is run, before rebooting. More than once, I've
> known versions of grub not deal correctly with a separate /boot, so
> I've had to do this until the bug was fixed.
> 
> Both update-grub and grub-mkconfig (which it calls) are scripts and
> possibly some kind of user warning could be appended to one of them.
> 
> Or perhaps if the backup copy were made to a second hard drive (trickier
> with a laptop) then os-prober could be trusted not to mix roots and
> boots between drives.

Excepted of LVM usage separated partitions for /boot IMO don't make
sense. However, isn't there information in /boot, to what / it belongs?
I wonder if the updater at least checks, if the modules in /lib belong
to a kernel of the same version, which wouldn't be a protection, if
different installs should use kernels of the same version. I don't use
the updater, but I suspect that it can be set up to take care about what
belongs to each other. OTOH on my computer the updater seems to take car
about backups of fstabs or what ever, since it will add Linux that are
deleted from my computer a long time ago.
A long time ago I switched back to GRUB legacy and I always edit(ed)
menu.lst und grub.cfg manually.
Would be syslinux better for the OP? I never used syslinux.

Regards,
Ralf


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Re: Storage server

[Stan Hoeppner]

On 9/14/2012 11:29 AM, Kelly Clowers wrote:
> On Thu, Sep 13, 2012 at 4:45 PM, Stan Hoeppner  wrote:
>> On 9/13/2012 5:20 AM, Veljko wrote:
>>> On Tue, Sep 11, 2012 at 08:34:51AM -0500, Stan Hoeppner wrote:
 One of the big reasons (other than cost) that I mentioned this card is
 that Adaptec tends to be more forgiving with non RAID specific
 (ERC/TLER) drives, and lists your Seagate 3TB drives as compatible.  LSI
 and other controllers will not work with these drives due to lack of
 RAID specific ERC/TLER.
>>>
>>> Those are really valuable informations. I wasn't aware that not all
>>> drives works with RAID cards.
>>
>> Consumer hard drives will not work with most RAID cards.  As a general
>> rule, RAID cards require enterprise SATA drives or SAS drives.
> 
> They don't work with real hardware RAID? How weird! Why is that?

Surely you're pulling my leg Kelly, and already know the answer.

If not, the answer is the ERC/TLER timeout period.  Nearly all hardware
RAID controllers expect a drive to respond to a command within 10
seconds or less.  If the drive must perform error recovery on a sector
or group of sectors it must do so within this time limit.  If the drive
takes longer than this period the controller will flag it as bad and
kick it out of the array.  The assumption here is that a drive taking
that long to respond has a problem and should be replaced.

Most consumer drives have no such timeout limit.  They will churn
forever attempting to recover an unreadable sector.  Thus routine errors
on consumer drives often get them kicked instantly when used on read
RAID controllers.

-- 
Stan


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Re: Storage server

[Stan Hoeppner]

On 9/14/2012 7:57 AM, Martin Steigerwald wrote:
> Am Freitag, 14. September 2012 schrieb Stan Hoeppner:
>> Thus my advice to you is:
>>
>> Do not use LVM.  Directly format the RAID10 device using the mkfs.xfs
>> defaults.  mkfs.xfs will read the md configuration and automatically
>> align the filesystem to the stripe width.
> 
> Just for completeness:
> 
> It is possible to manually align XFS via mkfs.xfs / mount options. But 
> then thats an extra step thats unnecessary when creating XFS directly on 
> MD.

And not optimal for XFS beginners.  But the main reason for avoiding LVM
is that LVM creates a "slice and dice" mentality among its users, and
many become too liberal with the carving knife, ending up with a
filesystem made of sometimes a dozen LVM slivers.  Then XFS performance
suffers due to the resulting inode/extent/free space layout.

Of course, this is fine when a user knows the impact up front and can
live with a 10+ fold decrease in performance when the  FS starts filling
up.  Once this gets bad enough the only fix is to dump, format, restore
the filesystem.  And that gets expensive when we're talking many TB.

-- 
Stan


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Re: Grub2 with multiple Debians

[Joe]

On Fri, 14 Sep 2012 20:42:21 + (UTC)
Hendrik Boom  wrote:

> On Fri, 14 Sep 2012 23:25:03 +0300, Andrei POPESCU wrote:
> 
> > On Vi, 14 sep 12, 17:12:38, Hendrik Boom wrote:
> >> 
> >> Of course, after I've made my copy (with slight changes
> >> to /etc/fstab) I have two nearly identical sets of partitions, so
> >> it may be tricky to tell them apart.  Is grub2 clever enough to
> >> figure it all out anyway? And what data does it use to this end?
> >> (so I can make sure it's right!)
> > 
> > UUIDs? What failure mode(s) do you have in mind, because I can't
> > think of any.
> 
> It probably is os-prober that I mean.  The misconfiguration I have in 
> mind is matching one system's /boot with another systems's /.  I've
> had it happen on a laptop sometime ago. and it sure messed up my
> upgrades.  I have no idea how it happened, but it has made me
> paranoid.
> 

The problem is that update-grub rewrites /boot/grub/grub.cfg. It may be
possible to specify roots and boots in /etc/grub.d/ (I do use a
separate /boot, but I've never needed to try this) or alternatively it
is perfectly possible to edit grub.cfg, but you need to remember to do
so each time update-grub is run, before rebooting. More than once, I've
known versions of grub not deal correctly with a separate /boot, so
I've had to do this until the bug was fixed.

Both update-grub and grub-mkconfig (which it calls) are scripts and
possibly some kind of user warning could be appended to one of them.

Or perhaps if the backup copy were made to a second hard drive (trickier
with a laptop) then os-prober could be trusted not to mix roots and
boots between drives.

-- 
Joe


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Re: Grub2 with multiple Debians

[lee]

Hendrik Boom  writes:

> It has been my practice when upgrading between Debian releases to make 
> bootable copies of the OS partitions on my hard drive so that if things 
> go badly wrong I still have a bootable system.

How did you make such copies?

> This wirked fine with LILO and GRUB 1, where I was in control of 
> configuratino files and could explicitly specifiy which root partitions 
> went with which boot partitions/
>
> But when installing grub2 to an MBR. all this is automated.  It looks 
> around on the available disks and figures out shoch partition goes with 
> which.
>
> Of course, after I've made my copy (with slight changes to /etc/fstab) I 
> have two nearly identical sets of partitions, so it may be tricky to tell 
> them apart.  Is grub2 clever enough to figure it all out anyway?  And 
> what data does it use to this end? (so I can make sure it's right!)

Are you referring to grub figuring it out when booting or to grub
figuring it out while it's being installed?  (In any case, I don't know
any of the answers ...)

There needs to be a way for grub to figure out where to look for its
configuration.  Perhaps this information is stored in the MBR when
installing grub.  In that case, you would have a problem when grub
cannot find its configuration there anymore (like because the
partitioning has changed) and maybe a problem if it finds the wrong
configuration.


-- 
Debian testing amd64


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Re: Installation

[lee]

Camaleón  writes:

> On Thu, 13 Sep 2012 03:49:40 +0200, lee wrote:
>
>> Camaleón  writes:
>> 
>>> On Wed, 12 Sep 2012 02:10:31 +0200, lee wrote:
 
 It can be ridiculously difficult to install Debian.
>>>
>>> (...)
>>>
>>> When it comes to an OS, installation process can be considered
>>> irrelevant. The real problems starts afterwards.
>> 
>> It is irrelevant when you can't install the OS?
>
> No. It is irrelevant to consider the installation step as the source  
> problem because the installation variable can be easily avoided by 1) 
> buying a computer with pre-installed OS on it (Windows, MacOS, Ubuntu, 
> FreeDOS...) or 2) having a friend that installs it for you (Windows, 
> MacOS, Ubuntu, FreeDOS...).

If you have these options ...  I don't buy pre-build computers, and even
if I would, why would I buy another one rather than use the one I
already have?  And are you going to pay for it?  I don't have a friend
who could install it for me.

In any case, it is not irrelevant whether the OS can be installed or
not.  Who tries to install it doesn't matter.

> The system is installed and running, now what?

Now the user needs to keep learning.

>> expect that there are no problems with installing windoze on a raid.  If
>> I can't they get that right, it's even worse than I imagine.
>
> What!? You are being too optimistic then :-)

Oh my ...

But wait!  I could go ask my neighbours how to do it.  I'm sure they
know!

 I've seen broken Debian installers that couldn't find packages. I've
 had installer CDs that couldn't be read for some reason, so I had to
 drive an hour to the place I worked at to make a new ones and drive an
 hour back.
>>>
>>> And I've seen BSOD Windows at the installer which was not able to
>>> detect the storage controller driver. And also printers that cannot be
>>> used because the manufacturer did not provide the 64-bits driver
>>> because a 4- years old device is considered "obsolete" and thus
>>> unsupported.
>> 
>> Then the software goes back to the place I got it from.  If I buy
>> windoze, I pay for something that works.  They can fix it or take it
>> back.
>
> Dude, you can't do this for "do it yourself" computers.

sure I can

>>> To my eyes, clueless windows users are the same than clueless linux
>>> users. What differs them is not the OS but their attitude (how they
>>> confront the problem).
>> 
>> Clueless is clueless, so what's the difference?
>
> Yet over again? "Attitude" makes the difference.

What difference?  If someone is clueless, they are clueless, no matter
what their attitude is.

>>> I wonder how many bugs have you reported and how of them has been
>>> solved ;-)
>> 
>> I didn't count.  Some them seem to have been ignored, some were fixed.
>
> Yeah, that's the norm. I mean, the former ("ignored") is the norm :-)

It depends on what software you report the bug.

 You can even get bugs fixed the next day on a weekend when you report
 one.
>>>
>>> You have to be kidding... unless, of course, you are talking about
>>> security fixes or problems for customers that have expressly paid for
>>> support.
>> 
>> Not at all, I've had that happening.  It wasn't a security fix and it
>> was free software I didn't pay anything for.
>
> Oh, sure. This happens from time to time. But you have to be rather 
> persistent and there's no guarantee for the problem to be solved.

No, I didn't have to be persistent.  I just sent a bug report and the
bug was fixed the next day.  With commercial software, there's as much a
guarantee that your bug won't be fixed as you can get a guarantee.

 What commercial software has support that good?
>>>
>>> That will depend on what you can afford.
>> 
>> I'm talking about support that doesn't cost anything, of course.
>
> Then you are hoping for too much, sir. And remember that free software is 
> not about things that cost ($) anything.

No, I know that there isn't any support with commercial software, like
it or not.

> Sadly, there's still times when you cannot select what to use and there 
> are lots of software packages and hardware devices that do not provide 
> their sources, that's the problem and we have to face it, like it or 
> not :-/

Sure, it would be nice if that was different.  OTOH, do you really have
a problem with/due to that?

 Unsupported hardware, yes, you have to be picky about what you buy ---
 which isn't bad because you avoid crappy hardware which is too likely
 to give you problems to be worth it.
>>>
>>> Don't expect a newbie is going to know about that. They will only buy
>>> what it simply fits to their requirements.
>> 
>> It doesn't fit their requirements when the software they want to run
>> doesn't support it.
>
> And they only notice when its too late and start blaming linux and its 
> poor harwdare support ;-)

Do you expect clueless users to make good judgements?

 Outdated applications? Yes, some packages in Debian are rather old. So
 I got emacs and fvwm a

Re: Dual-Monitor help

[lee]

Nelson Green  writes:

> 
>> From: l...@yun.yagibdah.de
>> To: debian-user@lists.debian.org
>> Subject: Re: Dual-Monitor help
>> Date: Wed, 12 Sep 2012 03:16:55 +0200
>>
>> Nelson Green  writes:
>>
>> > have no choice but to run a GUI of some type. I would like to learn to do 
>> > so
>> > with a minimal footprint if you would be willing to share some tips. I find
>> > my primary use of the GUI is email, the web apps I have to support, and
>> > Guayadeque for my classical music fixes.
>>
>> You could try fvwm and a recent emacs24 with gnus and tmux (or screen)
>> in rxvt. You might be much happier with a tiling window manager like i3
>> (they have a nice video on youtube) rather than fvwm, though.
>
> I will look into these and report back, but don't be surprised if that doesn't
> happen for a few weeks. I just got handed a brand new server yesterday, to
> install, configure, secure, and maintain.

That sounds like fun :)

>> > all I really need is dual monitors so I can update things in Terminal and
>> > refresh the page in the web browser, and a locking screen saver, for which
>> > xscreensaver works just fine. In fact I wouldn't mind just having TTY1 on
>> > one monitor and the GUI on the other if that is possible.
>>
>> Xscreensaver is fine. You can have two different displays for X sessions
>> (one on each monitor) rather than having one display that goes across
>> both monitors. I haven't tried to have one X display on one monitor and
>> the console on the other --- that should be somehow possible ...
>
> Actually I'm sure it probably is, but it might take some serious hacking. I 
> will
> definitely report back if I get this one figured out. If you have some 
> pointers
> on different X sessions on different displays I'll take those as well. I 
> might just
> try that one at home for grins.

Sorry, no pointers yet --- I've had two monitors for a couple days only
and didn't experiment much.  I simply used nvidia-settings to enable the
second monitor, and it gave me the option to either use what they call
"twinview" or to make the two monitors two different displays, which
would have required to restart the X-server.  I chose "twinview" and it
just worked fine.  Before I could even get used to it, I had to go back
to a single monitor.  Fvwm works great with either :)


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Re: Grub2 with multiple Debians

[Ralf Mardorf]

On Fri, 2012-09-14 at 20:42 +, Hendrik Boom wrote:
> The misconfiguration I have in mind is matching one system's /boot
> with another systems's /.  I've had it happen on a laptop sometime
> ago. and it sure messed up my upgrades.  I have no idea how it
> happened, but it has made me paranoid.

IIRC, if the "(set) root" line doesn't fit to the root of the
"linux/kernel line" for grub.cfg or menu.lst, it's possible to boot into
a Linux by booting the kernel of another install, perhaps this will
cause an error instead of booting, however, once I booted a kernel and
root from different Linux installs. Note that I manually edit my
configs, the updater won't do such a mistake. 


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Re: Grub2 with multiple Debians

[Hendrik Boom]

On Fri, 14 Sep 2012 23:25:03 +0300, Andrei POPESCU wrote:

> On Vi, 14 sep 12, 17:12:38, Hendrik Boom wrote:
>> 
>> Of course, after I've made my copy (with slight changes to /etc/fstab)
>> I have two nearly identical sets of partitions, so it may be tricky to
>> tell them apart.  Is grub2 clever enough to figure it all out anyway? 
>> And what data does it use to this end? (so I can make sure it's right!)
> 
> UUIDs? What failure mode(s) do you have in mind, because I can't think
> of any.

It probably is os-prober that I mean.  The misconfiguration I have in 
mind is matching one system's /boot with another systems's /.  I've had 
it happen on a laptop sometime ago. and it sure messed up my upgrades.  I 
have no idea how it happened, but it has made me paranoid.

-- hendrik




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Re: Re: lenovo t430s wifi not working

[Brian]

On Fri 14 Sep 2012 at 12:59:28 -0400, Len Berman wrote:

> The output of lspci is at the bottom of the post.  Looks like
> 
>   03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
> 802.11b/g/n WiFi Adapter (rev 01)
> 
> is the piece that deals with wifi.  After seeing this, I
> installed firmware-realtek_0.28+squeeze1_all.deb; however the indicator
> light for the wifi is still not on.  The closest to this device that I can
> find in /var/log/messages is
> 
> Sep 14 12:41:27 t430s kernel: [6.050043] rtl8192ce :03:00.0: PCI
> INT A -> GSI 17 (level, low) -> IRQ 17
> Sep 14 12:41:27 t430s kernel: [6.233937] rtl8192ce :03:00.0: PCI
> INT A disabled

Getting the right firmware package was a good move. :)

Now did you look at

   http://wiki.debian.org/rtl819x ?

The RTL8188CE is supported only in Wheezy, as is the rtl8192ce. Why the
two different identifications I do not know.

You could see what backports has to offer. You'll need a new kernel, I
expect. Or you could upgrade to Wheezy from your present installation.


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Re: Grub2 with multiple Debians

[Andrei POPESCU]

On Vi, 14 sep 12, 17:12:38, Hendrik Boom wrote:
> 
> But when installing grub2 to an MBR. all this is automated.  It looks 
> around on the available disks and figures out shoch partition goes with 
> which.

Grub is just a bootloader, you must be thinking about os-prober.
 
> Of course, after I've made my copy (with slight changes to /etc/fstab) I 
> have two nearly identical sets of partitions, so it may be tricky to tell 
> them apart.  Is grub2 clever enough to figure it all out anyway?  And 
> what data does it use to this end? (so I can make sure it's right!)

UUIDs? What failure mode(s) do you have in mind, because I can't think 
of any.

Kind regards,
Andrei
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Re: Migrate to 3TB disk

[Andrei POPESCU]

On Vi, 14 sep 12, 17:22:36, Hendrik Boom wrote:
> 
> Which probably means building a new file system and copying all the 
> files.  Even if it's possible to upgrade in place, it would  probably 
> mean preserving the existing low-level structure, like 512-byte sectors 
> instead of 4K sectors.

There are docs about migrating ext3 to ext4.
 
> Anybody have any input as to whether ext4 or xfs would offer better long-
> term reliability?

Both ext4 and xfs are under active development. The only contender would 
be btrfs, which is still considered experimental.

Kind regards,
Andrei
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Re: networking with virtual machine

[lee]

Chris Davies  writes:

> lee  wrote:
>> That seems to suggest using a bridge[1], and I find that very
>> confusing. I understand that apparently I am supposed to replace my
>> currently used eth1 by a bride device which uses eth1 and to which I
>> could add other physical devices like eth0. I don't understand what the
>> purpose of adding more physical devices would be and what I actually
>> get when I have such a bridge device and what all that has to do with
>> a guest.
>
> Ah. Consider a bridge to be a software implementation of a network switch.
>
> Currently your networking subsystem refers to eth1, which represents the
> NIC itself. With a bridge, your networking subsystem would refer to a
> bridge called br1 (say), and the bridge would connect to your eth1. (The
> bridge name is completely arbitrary; you could call it eth3 if you really
> wanted to.)
>
> The reason you would use a bridge is because then each of your VMs could
> also connect to the bridge and therefore to eth1, and your host system
> and each of the VMs would have separate IP addresses, etc.

Still I can't imagine this :(  When I look at the drawing on [1], I see
that it doesn't apply because I do not have a configuration like that.
I have only eth1 connected to the internet (the router actually, but
that doesn't make a difference for this).

I do not want to bridge the internet transparently with the local
network, which seems to be what a bridge would do.  It would be like
replacing this:


  |--- host A
   Internet --- eth0 firewall eth1 ---|--- host B
  |--- host N


with this:


   |--- con1 --- host A
   Internet --- con0 switch ---|--- con2 --- host B
   |--- conN --- host N


"con*" stands for the connector on the switch where I plug in the
network cable.

The difference to a switch would be that the switch doesn't show up
because it works transparently.

What I actually have is that:


   Internet A (not in use)

   Internet B --- router w/ FW |--- eth1 host A w/ shorewall
   |--- ethX or wireless host B
   |--- ethX or wireless host N

What I want is this:


   Internet B --- router w/ FW --- eth1 host w/ shorewall xxx --- guest


"xxx" is a placeholder for some way to connect the guest which runs on
the host.

Ideally, I would bundle "Internet A" and "Internet B" to increase the
available bandwidth.  It seemed to be so complicated that it didn't
appear worthwhile, given that "Internet A" is very slow.  It is possible
to plug "Internet B" into eth0 (and run pppd on the host) while it's not
possible to plug "Internet A" into the host (because it's ADSL coming
over an ISDN phone line, so it has to come over the router).  I have an
Intel e100 card laying around with two ports, so physical network
interfaces can be plenty :)  The router can get internet either through
the phone line or through an ethernet port.  It only really needs that
when wireless is in use, which it usually isn't.

So I could have something like that:


   Inet A --- router ---|
| --- eth0 & eth1 host A w/ shorewall eth2
   Inet B --||
 |
 |
   |-|---|---|
   | |   |
host Bhost C   guest on A


... if that isn't too complicated :)


[1]: http://www.shorewall.net/SimpleBridge.html


>> It seems to me that having the bridge device in theory would somehow
>> magically enable me to give the guest an IP address in the same network
>> as the host is.
>
> The guest would become visible to your network as a distinct entity
> to the host, and could get an address using DHCP (if your network uses
> this), etc.

Then how do I get it behind the firewall?  It doesn't have a network
interface and even the host won't have one anymore.

I suspect what gives me trouble might be that I would take away a
network interface and replace it with some sort of unknown mess (the
bridge, which is some sort of melting pot) that somehow can have any IP
address it wants.  That totally removes the order of things and leaves
me without a handle (a network interface).

>> That isn't what I want because I want the guest behind the firewall
>> which is on the host (using shorewall).
>
> This is actually two unrelated things that you've squashed together. It
> is completely possible for the host's firewall to restrict access to
> a guest, regardless of whether the guest is hidden by the host or it
> appears as an independent system on your network.

How can that be when they are like plugged into a switch, side by side?
The switch they are plugged in is directly connected t

Re: Kernel throwing exception once in a while

[lee]

krish  writes:

> Hi,
>
>
> I wasn't really sure which package to report this bug against, so
> writing it to the lists.
>
> This is happening randomly almost everyday. Not able to figure out why

It reminds me of NFS freezing when using cheap network cards.


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Re: Installation

[lee]

"Weaver"  writes:

> On Thu, September 13, 2012 5:26 pm, lee wrote:
>> 
>> You cannot determine the size of the /home partition by the size of
>> another storage device that may be installed or not, now or in the
>> future.
>
> GParted can.

,
| lee@yun:~$ apt-cache show gparted
| Package: gparted
| Version: 0.12.1-1
| [...]
|  GParted uses libparted to detect and manipulate devices and partition
|  tables while several (optional) filesystem tools provide support for
|  filesystems not included in libparted.
`

I very much doubt that this works with devices that aren't currently
installed or with partition tables on devices that might be installed in
the future.

>> Do you expect users to re-size their /home partitions for flexibility?
>
> They will not be performing this operation immediately.

That doesn't matter.  You suggested a separate /home partition, claiming
the option provides more flexibility.  Whether it does that or not
depends on a lot of factors you haven't mentioned and probably haven't
thought about.

>> Do you seriously want the clueless user to lose their data as a pleasant
>> learning experience rather than advising them well so data loss might be
>> prevented?
>
> They cannot absorb all the knowledge in all the documentation by printing
> it out and swallowing it.
> I appreciate that these things have to become familiar, but wouldn't that
> be better after the installation?

No, people would be better advised learning about partitioning before
they use the Debian installer to install Debian on their computer, with
some exceptions to that, like installing in a VM running under the OS
they are currently using.

>> You could also suggest using only half of the available disk space in
>> some configurations so that the user can use it to make backups when
>> they find out that they need a different partitioning.
>
> And if the drive only has enough space in the first place?

Then that won't work.

> Just install, then buy an external drive.

And then start all over again?

> Cheap enough these days.

They are not cheap enough.  Hard disks still cost twice of what they did
shortly after I bought some last time.  You could get a WD20EARS for EUR
65, and now a 2TB disk costs about EUR 99--130 :(

You'd buy 3TB disks now.  You need 4 of them because you want a
RAID-10. That's about EUR 520, i. e. about US$ 670.  I don't call that
cheap (enough).  Even if it was only 1/2 that, it would still be a lot
of money.

> I'm looking at buying an external WD 1.5 TB for $99.

That would be too small for me; even a single backup wouldn't fit on
that.  BTW, don't buy it.  Get a *good* external case with sufficient
cooling and a disk to put into it.  Don't buy one you cannot open
without breaking it.

> First the installation.
> After that the next rung.

First jump out of the plane, after that figure out where and how to get
a parachute.  No thanks, that's not the way I do things and not
something I would recommend.


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Re: Installation

[lee]

"Weaver"  writes:

> The installer is quite specific in regard to where it should place the
> installation. Nobody is going to hose any other installed OS unless the
> simply refuse to read.
> If that's the case they need to lose the current installation to help them
> to wake up a little.

You're proving what I already suspected:  That you are one of those
people who have picked up some sort of half-knowledge and now think they
know a great deal and that they could make decisions for others because
they know so much better.  This kind of people is far worse than the
clueless kind.

Start thinking things through:  You assume the clueless user who is
totally overwhelmed when presented with the partitioning stage in the
Debian installer.  Obviously, it doesn't occur to you that this user
might make a mistake which could lead to him losing the only working
system he has and all his priceless data.  Do I need to say any more?

Keep your hands off of the Debian installer and stay away from computers
and cars.

> All that is required, prior to the partitioning stage, is a short,
> concise, informative note (and no more than a note) to deliver
> information required to make an informed choice.

I don't see much point in repeating myself.

> Installing from a live CD works,

The Debian installer doesn't give you a working system unless they
recently changed that.


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Re: Installation

[lee]

"Weaver"  writes:

> On Thu, September 13, 2012 12:04 pm, lee wrote:
>>
>> What do you do, or what is the installer supposed to do, when you have
>> several disks?  Make a RAID-0 out of them and do as you describe?  Make
>> a RAID-1 or RAID-10 or RAID-5?  Only use one disk?  Put / and everything
>> else on one disk and use the other(s) (one) for /home?
>>
>> I can see you saying that your clueless user doesn't have more than one
>> disk.
>
> In the majority of cases, they won't, having bought an OEM installed box,
> where the manufacturer has kept the price down with a minimum of hardware.

When they have that, they will very likely have windoze on a single hard
disk on a single partition.  Do you want the D/i to shrink this
partition?  If so, have the users make a backup first.

Who says that this is a the majority of cases?  And who says it matters?
What you haven't thought about is that the D/i has to be able to work
with all kinds of different hardware.  You don't want to think about
anything that might be different from how you assume things are because
it gets in your way.

>   What about the clueless user who scraped together their computer
>> over time from old or cheap parts they were able to acquire, so they
>> have a couple of old SCSI and IDE disks between 16, 36 and 100GB in
>> size.  They've got an OS they want to keep on the 100GB IDE disk, which
>> is partitioned (someone else did it and they don't know how to change
>> that), some data on the others, all partitions between 60--90% full with
>> non-removable stuff, and now they want to try out Debian.  They are in
>> the installer and expect it to install without partitioning
>> manually. What's the installer supposed to do or to offer them?
>
> Why do you create scenarios that are overly complex?

They aren't overly complex.  They are realistic.  I installed Linux on
something like the above when I installed it the first time, only that
disk sizes were still in the MB range and you could only dream of a disk
that would have the incredible capacity of 1GB.  Of course, you didn't
have internet and might not even have heard about it, and even if you
did, you wouldn't have had access to it.  It was a computer I had bought
pre-built from a manufacturer and upgraded over time. That's one of the
nice things about this kind of computers: You can modify them easily.

Why do you expect that people just go and buy exactly the hardware you
want them to have before using the D/i?  It is unlikely that they
will.

You said you had old crappy computers when you started.  Didn't you take
out the disks (and other useful parts) and put them into the next one
when you switched to make the next crappy computer a bit less crappy by
upgrading it?  Or even only to keep your data?

Well, maybe not, I can imagine you dumped the old one when you got the
next one and started thinking about keeping your data not before it was
too late.  Wake up, not everyone does things the way you do.


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Re: Storage server

[Paul E Condon]

On 20120910_053746, Stan Hoeppner wrote:
> On 9/9/2012 3:25 PM, Paul E Condon wrote:
> 
> > I've been following this thread from its beginning. My initial reading
> > of OP's post was to marvel at the thought that so many things/tasks
> > could be done with a single box in a single geek's cubicle. 
> 
> One consumer quad core AMD Linux box of today can do a whole lot more
> than what has been mentioned.
> 
> > I resolved
> > to follow the thread that would surely follow closely. I think you,
> > Stan, did OP an enormous service with your list of questions to be
> > answered. 
> 
> I try to prevent other from shooting themselves in the foot when I see
> the loaded gun in their hand.
> 
> > This thread drifted onto the topic of XFS. I first learned of the
> > existence of XFS from earlier post by you, and I have ever since been
> > curious about it. But I am retired, and live at home in an environment
> > where there is very little opportunity to make use of its features.
> 
> You might be surprised.  The AG design and xfs_fsr make it useful for
> home users.
> 
> > Perhaps you could take OP's original specification as a user wish list
> > and sketch a design that would fulfill the wishlist and list how XFS
> > would change or resolve issues that were/are troubling him. 
> 
> The OP's issues don't revolve around filesystem choice, but basic system
> administration concepts.
> 
> > In particular, the typical answers to questions about backup on this list
> > involve rsync, or packages that depend on rsync, and on having a file
> > system that uses inodes and supports hard links. 
> 
> rsync works with any filesystem, but some work better with rsync
> workloads.  If one has concurrent rsync jobs running XFS is usually best.

Rsync features that invoke hard links are commonly used to do
de-duplication in backup systems that are designed with extX file
system in mind. Other parts of rsync work without hardlinks in the
file system. But, I think a common desire of people seeking advice
here is that there be some sort of automatic, easy to administer,
de-duplication.

> 
> > How would an XFS design
> > handle "de-duplication"? 
> 
> Deduplication isn't an appropriate function of a filesystem.

The wording of this question was too terse. I should have said
something like:

How would a backup system design that uses XFS implement
de-duplication?

I know that file-systems don't do de-duplication, but the rsysc
program does do de-duplication in the case of extX file system. What
alternative method for achieving de-duplication might be substituted
for rsync?

> 
> > Or is de-duplication simply a bad idea in very
> > large systems?
> 
> That's simply a bad, very overly broad question. 

Yes, but de-duplication is a feature that it highly touted as a "good
thing". Is there some easy way to have de-duplication *and* the
benefits of XFS in a single, optimized design of a backup system?


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Re: Grub2 with multiple Debians

[Camaleón]

On Fri, 14 Sep 2012 17:12:38 +, Hendrik Boom wrote:

> It has been my practice when upgrading between Debian releases to make
> bootable copies of the OS partitions on my hard drive so that if things
> go badly wrong I still have a bootable system.  And occasionally, things
> have gone badly wrong, so this was a life-saver.
> 
> This wirked fine with LILO and GRUB 1, where I was in control of
> configuratino files and could explicitly specifiy which root partitions
> went with which boot partitions/
> 
> But when installing grub2 to an MBR. all this is automated.  It looks
> around on the available disks and figures out shoch partition goes with
> which.

With GRUB2 it should be the same. What's what you miss from here? :-?

Any available operating system it detects it will be added as a new entry 
to the boot menu. This should happen automatically but can still be done 
manually with more or less pain.

> Of course, after I've made my copy (with slight changes to /etc/fstab) I
> have two nearly identical sets of partitions, so it may be tricky to
> tell them apart.  Is grub2 clever enough to figure it all out anyway? 
> And what data does it use to this end? (so I can make sure it's right!)

I would give it a try and let it GRUB2 do its own way. Should something 
fails, you will only need to make some minor adjustments from the 
configuration files (probably editing the root partition identifier).

Greetings,

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Re: Migrate to 3TB disk

[Hendrik Boom]

On Fri, 14 Sep 2012 09:22:51 -0700, Kelly Clowers wrote:

> 
>> (1d) EFI
> 
> Only applies with a pretty new motherboard that supports it.

I was under the impression that an old BIOS (which is what I probably 
have) doesn't know how to understand how to understand the partition 
table that comes with GPT, which goes with EFI, and that therefore there 
had to be some kind of shim installed to bridge the difference so that it 
can get to grub -- some kind of bootable BIOS replacement, which may take 
a partition of its own, presumably with some kind of kludgy hybrid of GPT 
and the old partition table.

I could be wrong, and my information could be out-of-date.  Most of the 
information about large disk partitioning I find on the web worries about 
the 8.5GB and the 137GB limit.

Thanks.

-- hendrik


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SQL Users List

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If you don't want to include yourself in our mailing list, please reply back
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Re: ACPID stuck in an endless loop - prevents login

[Camaleón]

On Fri, 14 Sep 2012 08:48:11 -0400, Chris Capon wrote:

> On 2012-09-13 13:07, Camaleón wrote:
>> On Wed, 12 Sep 2012 14:54:20 -0400, Chris Capon wrote:
>>
>>> After a recent Debian update, I've been unable to log in to my
>>> Debian/Linux server using the console and GDM3 won't start - X.org
>>> crashes part way through the startup.

>> What can be read from X server error logs?
> 
> The mga driver is not loading because it thinks a kernel module is
> already using it.

(thanks for sending the log)
 
> [  1223.466] (EE) mga: The PCI device 0x525 at 01@00:00:0 has a kernel module 
> claiming it.
> [  1223.466] (EE) mga: This driver cannot operate until it has been unloaded.
> 
> Is there a way to find out what is using it?

(...)

Gosh, what a cryptic message :-?

I have the feeling it is related to this patch:

http://lists.fedoraproject.org/pipermail/scm-commits/2012-May/785807.html

I can't really decypher the meaning, sorry, let's see what the X gurus can tell 
you :-)

A shoot in the dark: you can try by passing to the kernel line the 
"nomodeset" parameter from GRUB's boot menu.

Greetings,

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Re: Migrate to 3TB disk

[Hendrik Boom]

On Fri, 14 Sep 2012 19:55:58 +0300, Andrei POPESCU wrote:

> On Vi, 14 sep 12, 15:20:26, Hendrik Boom wrote:
>> 
>> Now currently my machine has two small (750G) disks that it stores the
>> bulk of its files on, and one tiny (250G) IDE disk that it boots from.
> 
> Tiny? That's almost as big as my entire storage (2 x 160 GiB).

Yeah.  I still remember when that was a huge disk.  I even remember the 
time that 5 megabytes was a big hard disk.  I'm just trying to keep up 
with the times, without resorting to terms like a very very very very 
large disk :)

> 
>> (1c) file and partition size limits among ext2, 3, and 4. (my6 ext3's
>> were migrated from ext2, so they may share the limits of the original
>> ext2fs)
> 
> For partitions in the TiB size you will definitely want ext4 or xfs as
> ext3 fsck times would be horrible.

Which probably means building a new file system and copying all the 
files.  Even if it's possible to upgrade in place, it would  probably 
mean preserving the existing low-level structure, like 512-byte sectors 
instead of 4K sectors.

Anybody have any input as to whether ext4 or xfs would offer better long-
term reliability?

> 
> Kind regards,
> Andrei

Thanks

-- hendrik



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Re: Re: lenovo t430s wifi not working

[Len Berman]

Thanks Brian.
>>> Let's first check what the chipset is. Please post the output of the
>>> command 'lspci', or the line referring to the device in the machine
>>> which deals with wireless, You could also say how you are trying to
>>> get WiFI working.

The output of lspci is at the bottom of the post.  Looks like

  03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)

is the piece that deals with wifi.  After seeing this, I
installed firmware-realtek_0.28+squeeze1_all.deb; however the indicator
light for the wifi is still not on.  The closest to this device that I can
find in /var/log/messages is

Sep 14 12:41:27 t430s kernel: [6.050043] rtl8192ce :03:00.0: PCI
INT A -> GSI 17 (level, low) -> IRQ 17
Sep 14 12:41:27 t430s kernel: [6.233937] rtl8192ce :03:00.0: PCI
INT A disabled

But I don't know whether that is relevant or something completely different.

I've been kind of assuming that once the indicator light comes on, I will
then be able to configure the wireless using one of the network tools
included with gnome or kde.  That has always worked for me before.

Thanks again for the help.
--Len


0:00.0 Host bridge: Intel Corporation Device 0154 (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Device 0166 (rev 09)
00:14.0 USB Controller: Intel Corporation Device 1e31 (rev 04)
00:16.0 Communication controller: Intel Corporation Device 1e3a (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation Device 1e2d (rev 04)
00:1b.0 Audio device: Intel Corporation Device 1e20 (rev 04)
00:1c.0 PCI bridge: Intel Corporation Device 1e10 (rev c4)
00:1c.1 PCI bridge: Intel Corporation Device 1e12 (rev c4)
00:1c.2 PCI bridge: Intel Corporation Device 1e14 (rev c4)
00:1c.4 PCI bridge: Intel Corporation Device 1e18 (rev c4)
00:1d.0 USB Controller: Intel Corporation Device 1e26 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Device 1e55 (rev 04)
00:1f.2 SATA controller: Intel Corporation Device 1e03 (rev 04)
00:1f.3 SMBus: Intel Corporation Device 1e22 (rev 04)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)

Grub2 with multiple Debians

[Hendrik Boom]

It has been my practice when upgrading between Debian releases to make 
bootable copies of the OS partitions on my hard drive so that if things 
go badly wrong I still have a bootable system.  And occasionally, things 
have gone badly wrong, so this was a life-saver.

This wirked fine with LILO and GRUB 1, where I was in control of 
configuratino files and could explicitly specifiy which root partitions 
went with which boot partitions/

But when installing grub2 to an MBR. all this is automated.  It looks 
around on the available disks and figures out shoch partition goes with 
which.

Of course, after I've made my copy (with slight changes to /etc/fstab) I 
have two nearly identical sets of partitions, so it may be tricky to tell 
them apart.  Is grub2 clever enough to figure it all out anyway?  And 
what data does it use to this end? (so I can make sure it's right!)

-- hendrik


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Re: rigmarole about debian and radeon

[Camaleón]

On Thu, 13 Sep 2012 21:30:29 +0200, lavcina wrote:

(please, do not send html formatted posts, thanks!)

>> Why "of course"? I don't have a separate /home partitions and still
>> happy :-)
> 
> my sweet /home is on a separate physical drive and I hope now to be able
> to mess a little bit around without losing all data...:)

Great, I just wanted to note that a separate "/home" is not required.

>> What problems are you facing in GNOME? Be the more specific you can.
>> ...
>> I don't see where the problem with HDMI is. Can you describe what are
>> the symptoms? Is it related to resolution, flickering, output not
>> detected or bad positioning...?
> 
> back to my issue:
> 
> Under KDE everything is in the best order. The image is just as it
> should be but my HDMI Monitor is not always detected on boot-up. 

So first problem in KDE: HDMI output is not always enabled.

> Even when KDE runs the HDMI screen breaks on occasion. 

In what way "breaks"? Please describe what happens, what's what you see.

> When I start GNOME on the other hand the resolution on both screens is
> poor somehow blurred. 

First problem in GNOME: screen resolution is wrong.

> My head begins to ache so I think there is also flickering. Positioning
> is ok. I suspect that the driver isn't used right.

Second problem in GNOME: Refresh rate is wrong.

Both issues (with KDE and GNOME) can be due to the static values you have 
defined at the "xorg.conf" file. What happens when you rename this file 
(e.g., to something like "/etc/X11/xorg.conf.old") and boot the system?

>> I would try with no "xorg.conf" file at all which OTOH, should not be
>> required by now.
> 
> What do you mean by OTOH?

OTOH → On the other hand

>> So you are using the VGA and HDMI ports, right? Using digital outputs
>> is usually recommended (meaning, dvi would be better that vga).
>> 
>> > (WW) RADEON(0): Direct rendering disabled (II) RADEON(0):
>> > Acceleration disabled
>> 
>> To get 3D capabilities you may need to install some binary blob
>> (firmware-linux-nonfree) from the non-free repository.
> 
> Yes that's right. I use HDMI and VGA ports. I can't use dvi because my
> second Monitor is an older model with an interesting almost square
> geometry - very good for reading.
> Up to now I don't miss the extended 3D capabilities but you never
> know...

In Squeeze, the VGA 3D capabilities are not required unless you are using 
some kind of window compositing (such Compiz or KWin) which benefits from 
it but in any case, enabling direct rendering wouldn't do any harm while 
can speed up the desktop.

Greetings,

-- 
Camaleón


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Re: Migrate to 3TB disk

[Andrei POPESCU]

On Vi, 14 sep 12, 15:20:26, Hendrik Boom wrote:
> 
> Now currently my machine has two small (750G) disks that it stores the 
> bulk of its files on, and one tiny (250G) IDE disk that it boots from.  

Tiny? That's almost as big as my entire storage (2 x 160 GiB).

> (1c) file and partition size limits among ext2, 3, and 4. (my6 ext3's 
> were migrated from ext2, so they may share the limits of the original 
> ext2fs)

For partitions in the TiB size you will definitely want ext4 or xfs as
ext3 fsck times would be horrible.

Kind regards,
Andrei
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Re: Wheezy managesieve segfault

[Camaleón]

On Fri, 14 Sep 2012 13:15:05 +0200, Denis Witt wrote:

> recently I updated one of my Wheezy Servers, since this update
> managesieve (Dovecot) fails with a segfault when I try to edit the
> filter script using the Sieve Filter Addon for Thunderbird.
> 
> Here's the logfile entry:
> 
> Sep 14 13:09:14 pdc kernel: [2937237.530373] managesieve[10194]:
> segfault at 0 ip 7fe185011664 sp 7fffc8118ad8 error 4 in
> libc-2.13.so[7fe184f01000+17d000]
> 
> Any ideas?

Google returned this:

[Dovecot] Managesieve segfault with dovecot 2.1.8
http://dovecot.org/pipermail/dovecot/2012-September/068130.html

Although both versions differ (Wheezy has 2.1.7), the error is quite 
similar.

Greteings,

-- 
Camaleón


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Re: Storage server

[Kelly Clowers]

On Thu, Sep 13, 2012 at 4:45 PM, Stan Hoeppner  wrote:
> On 9/13/2012 5:20 AM, Veljko wrote:
>> On Tue, Sep 11, 2012 at 08:34:51AM -0500, Stan Hoeppner wrote:
>>> One of the big reasons (other than cost) that I mentioned this card is
>>> that Adaptec tends to be more forgiving with non RAID specific
>>> (ERC/TLER) drives, and lists your Seagate 3TB drives as compatible.  LSI
>>> and other controllers will not work with these drives due to lack of
>>> RAID specific ERC/TLER.
>>
>> Those are really valuable informations. I wasn't aware that not all
>> drives works with RAID cards.
>
> Consumer hard drives will not work with most RAID cards.  As a general
> rule, RAID cards require enterprise SATA drives or SAS drives.

They don't work with real hardware RAID? How weird! Why is that?


Thanks,
Kelly Clowers


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Re: Migrate to 3TB disk

[Kelly Clowers]

On Fri, Sep 14, 2012 at 8:20 AM, Hendrik Boom  wrote:
> I have two new 3TB disks.  I'm adding them to an existing Debian (stable/
> squeeze AMD64) system.
...
> I have several questions:
>
> (1) Is there up-to-date documentation on these matters.  I'd love to RTFM
> if only I could find the FM.  I gather I need to know about:
>
> (1a) sector size and how to choose it,

https://en.wikipedia.org/wiki/Advanced_Format
Large modern disks use 4096 byte sectors, but most/all still
report 512 (too many old OSs out there). Linux kernel higher than
2.6.31 properly reports size and alignment issues. Use 4k block
size when creating the FS. Use parted/gparted/other libparted
program, as it can handle GPT (which you also probably want)
and automatically aligns for 4k.

I got a 4k disk fairly early on, haven't had any problems, but it is
just a backup disk. I used gparted to set it up, no problems.

I don't have any one source for all this, just accumulation from
different places. And it has been a while, so use a grain of salt.

> (1b) disk block numbers more than 32 bits,
> (1c) file and partition size limits among ext2, 3, and 4. (my6 ext3's
> were migrated from ext2, so they may share the limits of the original
> ext2fs)

The man pages should cover that, or the Wikipedia pages.
IMO, there are plenty of reasons to go with new Ext4 filesystems
anyway.

> (1d) EFI

Only applies with a pretty new motherboard that supports it.


> (1e) How this all affects booting (presumably with GRUB-2) in case I have
> a non-EFI BIOS (it is a somewhat old machine, having been build when SATA
> was just appearing on the market)

Grub2 should be fine, it knows stuff like GPT

> (1f) Which of the utilities I'm used to will handle this large a disk
> with a new partitioning scheme and larger files -- things like fsck,
> badblocks, lvm, software RAID, rdiff-backup, grub, lilo, sqlite, etc.  Id
> badblocks can't hacl it. for example. the full-service disk test I'm now
> doing may be useless.

I couldn't say much about it, but I would think fsck should only care
about the FS, not the underlying disk.Sqlite and such should be high
enough up the stack that it wouldn't be an issue.
As far as I know the kernel and filesystems and fs utilities have
pretty much been updated.

> (1f) Whether all this would go better with wheezy instead of squeeze, and
> so whether I should upgrade squeeze to wheezy first.

Couldn't hurt, and wheezy is getting close to release... That said,
the squeeze kernel should be fine, I would mostly just double check
the version of parted. (I do not remember what versions of things I
was using when I did it, I run unstable on my PC)

> (1g) Would an up-to-date Debian installer take care of most of this
> stuff?  It's not the way I [refer to go, because this machine is normally
> kept running 24 hours a day, and is actually used for much of this time.
> Reconfiguring a newly-installed system, instead of an upgrade, would be a
> pain.

I do not think it is needed at all.


Cheers,
Kelly Clowers


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Re: [OT] Re: workforce 645 printer can't find other network assets (SOLVED SORT OF)

[Camaleón]

On Thu, 13 Sep 2012 22:20:30 -0700, Gary Roach wrote:

> On 09/13/2012 08:58 AM, Camaleón wrote:

(...)

>> Next time, instead giving your money to Epson that shows no interest in
>> Linux, consider twice another alternatives (HP has a nice job here ;-)
>> )
>>
>>
>>
> I gave up. I took the Epson back an traded it in for an HP Office Jet
> Pro 8600. 

Ouch... I didn't want to sound that contundent O:-) 

But you know what? Well done. That's the only way Epson (or any other 
manufacturer that claims "not supporting Linux") will learn the lesson.

> I've had minimal trouble installing the thing on both Linux and XP
> systems. Everything works. I still can't get the Win2K system to work.
> Does anyone know where you can get print drivers for this. I have the
> HP 8600  and my XP laptop connected wireless to the  router. All other
> systems are etherneted. The Win2K system can't seem to find the printer.

Gary... Windows 2000 is now unsupported by Microsoft and hardware 
manufacturers do not usually provide drivers for Windows versions that 
have reached their Live Cycle.

But (as always :-P) Google provides a hint you can try:

http://h30434.www3.hp.com/t5/Printer-Networking-and-Wireless/i-need-an-hp-officejet-pro-8600-printer-driver-for-win2000/td-p/1836087

> Thank you all for your support.

You're welcome.

Greteings,

-- 
Camaleón


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Re: Missing Files Prevent Installation/Execution of Applications

[Camaleón]

On Thu, 13 Sep 2012 14:45:30 -0400, Stephen P. Molnar wrote:

> On Thursday 13 September 2012 13:53:05 Camaleón wrote:

(...)

>> >   Major opcode of failed request:  14 (X_GetGeometry) Resource id in
>> >   failed request:  0x5e00032 Serial number of failed request:  4435
>> > 
>> > There is obviously something missing.
>>
>> Yes, most sure the required OpenGL extension.
>> 
>> Run "glxinfo | grep -i gl_ext_packed" and look if it is there.
>> 
>> Greetings,
> 
> Glxinfo was a good suggestion.  Unfortunately, it didn't work.

As Andrei already suggested, kindly explain this. Do you mean...?

1/ "glxinfo" binary is not found (it comes with "mesa-utils" package and 
this is not installed)

2/ The above command returned void

> I think it comes down to which library contains the missing link?  Also,
> it may b e a 32 bit application.

To find the root of the problem we need to know first what happened with  
glxinfo :-)

Greetings,

-- 
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Re: Installation

[Camaleón]

On Thu, 13 Sep 2012 03:49:40 +0200, lee wrote:

> Camaleón  writes:
> 
>> On Wed, 12 Sep 2012 02:10:31 +0200, lee wrote:
>>> 
>>> It can be ridiculously difficult to install Debian.
>>
>> (...)
>>
>> When it comes to an OS, installation process can be considered
>> irrelevant. The real problems starts afterwards.
> 
> It is irrelevant when you can't install the OS?

No. It is irrelevant to consider the installation step as the source  
problem because the installation variable can be easily avoided by 1) 
buying a computer with pre-installed OS on it (Windows, MacOS, Ubuntu, 
FreeDOS...) or 2) having a friend that installs it for you (Windows, 
MacOS, Ubuntu, FreeDOS...).

The system is installed and running, now what?

>>> For the clueless user, it would have been impossible to install it.
>>
>> The same goes for a clueless Windows user if he/she needs to install
>> the required drivers to handle the RAID. Or do you thinks this is
>> different for them?
> 
> No, if they run into a problem, they aren't able to fix it.  However, I
> expect that there are no problems with installing windoze on a raid.  If
> I can't they get that right, it's even worse than I imagine.

What!? You are being too optimistic then :-)
> 
>>> I've seen broken Debian installers that couldn't find packages. I've
>>> had installer CDs that couldn't be read for some reason, so I had to
>>> drive an hour to the place I worked at to make a new ones and drive an
>>> hour back.
>>
>> And I've seen BSOD Windows at the installer which was not able to
>> detect the storage controller driver. And also printers that cannot be
>> used because the manufacturer did not provide the 64-bits driver
>> because a 4- years old device is considered "obsolete" and thus
>> unsupported.
> 
> Then the software goes back to the place I got it from.  If I buy
> windoze, I pay for something that works.  They can fix it or take it
> back.

Dude, you can't do this for "do it yourself" computers.

>> To my eyes, clueless windows users are the same than clueless linux
>> users. What differs them is not the OS but their attitude (how they
>> confront the problem).
> 
> Clueless is clueless, so what's the difference?

Yet over again? "Attitude" makes the difference.

>> I wonder how many bugs have you reported and how of them has been
>> solved ;-)
> 
> I didn't count.  Some them seem to have been ignored, some were fixed.

Yeah, that's the norm. I mean, the former ("ignored") is the norm :-)

>>> You can even get bugs fixed the next day on a weekend when you report
>>> one.
>>
>> You have to be kidding... unless, of course, you are talking about
>> security fixes or problems for customers that have expressly paid for
>> support.
> 
> Not at all, I've had that happening.  It wasn't a security fix and it
> was free software I didn't pay anything for.

Oh, sure. This happens from time to time. But you have to be rather 
persistent and there's no guarantee for the problem to be solved.

>>> What commercial software has support that good?
>>
>> That will depend on what you can afford.
> 
> I'm talking about support that doesn't cost anything, of course.

Then you are hoping for too much, sir. And remember that free software is 
not about things that cost ($) anything.

>>> You have the source code, too, so you can even fix them yourself.
>>
>> You need to be a programmer. And some key packages are not open source
>> (like the nvidia or fglxr drivers).
> 
> Yes, you need to know or figure out how to do it.  When you don't have
> the source code, you don't have that option at all, which is worse.
> Fglxr is for ATI/AMD cards?  Stay away from those, they give you more
> trouble than anything else.  There's an open source replacement for
> nvidia cards; I'm sure you know that.

Sadly, there's still times when you cannot select what to use and there 
are lots of software packages and hardware devices that do not provide 
their sources, that's the problem and we have to face it, like it or 
not :-/

>>> Unsupported hardware, yes, you have to be picky about what you buy ---
>>> which isn't bad because you avoid crappy hardware which is too likely
>>> to give you problems to be worth it.
>>
>> Don't expect a newbie is going to know about that. They will only buy
>> what it simply fits to their requirements.
> 
> It doesn't fit their requirements when the software they want to run
> doesn't support it.

And they only notice when its too late and start blaming linux and its 
poor harwdare support ;-)

>>> Outdated applications? Yes, some packages in Debian are rather old. So
>>> I got emacs and fvwm and compiled them myself; how more recent can you
>>> get?
>>
>> Again, don't expect a newbie to compile their own packages. I'm a long
>> time linux user and rarely do...
> 
> You have that option.  If you don't know how to do it, you can learn,
> that's a different issue.

Exacttly: that's an attitude. You see? :-)

>>> People believe that they can solve problems they have with windo

Migrate to 3TB disk

[Hendrik Boom]

I have two new 3TB disks.  I'm adding them to an existing Debian (stable/
squeeze AMD64) system.

I plan to partition them, and make one large partition on each one to 
serve as a carrier for a RAID-1.  I plan to subdivide that RAID using 
LVM.  There will also be a few small partitions outside the RAID.  If 
nothing wlse, they will enable me to distinguish the two physical drives 
in case I ever have to.

In the longer future, I am considering moving to the btrfs when it is 
ready.  I believe it subsumes some of the behaviour of RAID and LVM, as 
well as providing a number of other advantages.  But since it is now 
under instense development, it's probably not a good bet aty the moment 
for storing critical data.  (Yes, I also keep backups, just in case).

I'm currently in the process of full-surface testing two new 3T disks, so 
I'll have a week or so before I'm ready to start using them.

Just in case, to make sure I was testing the right drive (and not wiping 
out the smaller disks I'm already using) I first uses fdisk on all of my 
drives, so I'd know for sure which of /dev/sd* was a new one.

It was quite clear.  fdisk gave me a ton of warnings about the new drive, 
telling me I could not use a DOS-style parition table, and that fdisk was 
unable to serve me well, instead recomending paarted and GPT patition 
table format.

It also warned me not to use a logical sector size that was smaller then 
the physical sector size, for severe performance reasone.

Now currently my machine has two small (750G) disks that it stores the 
bulk of its files on, and one tiny (250G) IDE disk that it boots from.  
The new drives are intended to replace the existing 750G drives (which 
now contain RAID1-bearing partitions), but it wouldn't be terrible if 
instead I replaced the 250G boot disk and I set up to boot from one ogf 
the bigger SATA drives. (there's enough drive bays for four hard drives).

Now when I look to Debian documentation for stable (which is the Debian 
I'm using on this server), I find http://www.debian.org/releases/stable/
i386/apcs05.html.en where I'm told there are three partitinoing programs: 
partman, fdisk, and cfdisk.  There's no indicatino that any of these have 
problems with disks bigger than 2TiB. Documentatino for testing (at 
http://www.debian.org/releases/testing/i386/apcs05.html.en) is no better.

I have several questions:

(1) Is there up-to-date documentation on these matters.  I'd love to RTFM 
if only I could find the FM.  I gather I need to know about:

(1a) sector size and how to choose it, 
(1b) disk block numbers more than 32 bits, 
(1c) file and partition size limits among ext2, 3, and 4. (my6 ext3's 
were migrated from ext2, so they may share the limits of the original 
ext2fs)
(1d) EFI
(1e) How this all affects booting (presumably with GRUB-2) in case I have 
a non-EFI BIOS (it is a somewhat old machine, having been build when SATA 
was just appearing on the market)
(1f) Which of the utilities I'm used to will handle this large a disk 
with a new partitioning scheme and larger files -- things like fsck, 
badblocks, lvm, software RAID, rdiff-backup, grub, lilo, sqlite, etc.  Id 
badblocks can't hacl it. for example. the full-service disk test I'm now 
doing may be useless.
(1f) Whether all this would go better with wheezy instead of squeeze, and 
so whether I should upgrade squeeze to wheezy first.
(1g) Would an up-to-date Debian installer take care of most of this 
stuff?  It's not the way I [refer to go, because this machine is normally 
kept running 24 hours a day, and is actually used for much of this time.  
Reconfiguring a newly-installed system, instead of an upgrade, would be a 
pain.

I probably need more than this, but I don't know enough to figure out 
what yet, so any good advice and especially warnings are welcome.


Of course the most important stuff is related to how to get the system up 
and running, not things like whether Adobe Flash will fail.

-- hendrik


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Re: Kernel throwing exception once in a while

[Jochen Spieker]

krish:
> 
> I wasn't really sure which package to report this bug against, so
> writing it to the lists.
-- snip
> # uname -a
> Linux  3.5.2-x86_64-linode26 #1 SMP Wed Aug 15
> 14:31:07 EDT 2012 x86_64 GNU/Linux

I cannot comment on whether this is actually a bug, but the problem
appears to happen in a custom kernel that Linode uses. This is not a
Debian kernel so you cannot report a bug on the Debian package.

I would ask Linode whether this is a known issue and whether it has any
significance at all.

> Sep 14 04:46:01 n4 kernel: Call Trace:
> Sep 14 04:46:01 n4 kernel:   []
> warn_slowpath_common+0x80/0x98
> Sep 14 04:46:01 n4 kernel: [] warn_slowpath_null+0x15/0x17
> Sep 14 04:46:01 n4 kernel: [] skb_try_coalesce+0x1d7/0x2dd
> Sep 14 04:46:01 n4 kernel: [] ? ip6t_do_table+0x3b5/0x3e3

Apparently, this is IPv6 related. Do you use IPv6?


J.
-- 
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[Agree]   [Disagree]
 


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Description: Digital signature

RE: Dual-Monitor help

[Nelson Green]

> From: l...@yun.yagibdah.de
> To: debian-user@lists.debian.org
> Subject: Re: Dual-Monitor help
> Date: Wed, 12 Sep 2012 03:16:55 +0200
>
> Nelson Green  writes:
>
> > have no choice but to run a GUI of some type. I would like to learn to do so
> > with a minimal footprint if you would be willing to share some tips. I find
> > my primary use of the GUI is email, the web apps I have to support, and
> > Guayadeque for my classical music fixes.
>
> You could try fvwm and a recent emacs24 with gnus and tmux (or screen)
> in rxvt. You might be much happier with a tiling window manager like i3
> (they have a nice video on youtube) rather than fvwm, though.

I will look into these and report back, but don't be surprised if that doesn't
happen for a few weeks. I just got handed a brand new server yesterday, to
install, configure, secure, and maintain.

>
> > all I really need is dual monitors so I can update things in Terminal and
> > refresh the page in the web browser, and a locking screen saver, for which
> > xscreensaver works just fine. In fact I wouldn't mind just having TTY1 on
> > one monitor and the GUI on the other if that is possible.
>
> Xscreensaver is fine. You can have two different displays for X sessions
> (one on each monitor) rather than having one display that goes across
> both monitors. I haven't tried to have one X display on one monitor and
> the console on the other --- that should be somehow possible ...

Actually I'm sure it probably is, but it might take some serious hacking. I will
definitely report back if I get this one figured out. If you have some pointers
on different X sessions on different displays I'll take those as well. I might 
just
try that one at home for grins.

Thanks for the input.
Nelson
  

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Re: lenovo t430s wifi not working

[Brian]

On Fri 14 Sep 2012 at 09:24:14 -0400, Len Berman wrote:

> I've just got a lenovo t430s and can't get the wifi working.  I installed
> 
> firmware-iwlwifi_0.28+squeeze1_all.deb
> firmware-linux-free_2.6.32-45_all.deb
> firmware-linux-nonfree_0.28+squeeze1_all.deb
> 
> but still no luck.
> 
> Has anyone got one of these working?
> 
> I've looked in dmesg and see nothing about missing firmware or wifi and I
> don't know how to proceed.
> 
> Any suggestions about how to proceed or what info to post here would be
> greatly appreciated.

Let's first check what the chipset is. Please post the output of the
command 'lspci', or the line referring to the device in the machine
which deals with wireless, You could also say how you are trying to
get WiFI working.


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lenovo t430s wifi not working

[Len Berman]

I've just got a lenovo t430s and can't get the wifi working.  I installed

firmware-iwlwifi_0.28+squeeze1_all.deb
firmware-linux-free_2.6.32-45_all.deb
firmware-linux-nonfree_0.28+squeeze1_all.deb

but still no luck.

Has anyone got one of these working?

I've looked in dmesg and see nothing about missing firmware or wifi and I
don't know how to proceed.

Any suggestions about how to proceed or what info to post here would be
greatly appreciated.

--Len

Re: Storage server

[Martin Steigerwald]

Am Freitag, 14. September 2012 schrieb Stan Hoeppner:
> Thus my advice to you is:
> 
> Do not use LVM.  Directly format the RAID10 device using the mkfs.xfs
> defaults.  mkfs.xfs will read the md configuration and automatically
> align the filesystem to the stripe width.

Just for completeness:

It is possible to manually align XFS via mkfs.xfs / mount options. But 
then thats an extra step thats unnecessary when creating XFS directly on 
MD.

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


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Re: ACPID stuck in an endless loop - prevents login

[Chris Capon]

On 2012-09-13 13:07, Camaleón wrote:

On Wed, 12 Sep 2012 14:54:20 -0400, Chris Capon wrote:


After a recent Debian update, I've been unable to log in to my
Debian/Linux server using the console and GDM3 won't start - X.org
crashes part way through the startup.

What can be read from X server error logs?


The mga driver is not loading because it thinks a kernel module is 
already using it.


[  1223.466] (EE) mga: The PCI device 0x525 at 01@00:00:0 has a kernel 
module claiming it.
[  1223.466] (EE) mga: This driver cannot operate until it has been 
unloaded.


Is there a way to find out what is using it?

Thanks.


[  1223.417]
X.Org X Server 1.12.3
Release Date: 2012-07-09
[  1223.418] X Protocol Version 11, Revision 0
[  1223.418] Build Operating System: Linux 2.6.32-5-686-bigmem i686 Debian
[  1223.418] Current Operating System: Linux cczip 3.2.0-3-686-pae #1 
SMP Mon Jul 23 03:50:34 UTC 2012 i686
[  1223.418] Kernel command line: 
BOOT_IMAGE=/boot/vmlinuz-3.2.0-3-686-pae 
root=UUID=ea1106bd-afdd-4b04-849a-91b7e8ba0029 ro

[  1223.418] Build Date: 18 July 2012  09:27:53AM
[  1223.418] xorg-server 2:1.12.3-1 (Julien Cristau )
[  1223.418] Current version of pixman: 0.26.0
[  1223.419] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[  1223.419] Markers: (--) probed, (**) from config file, (==) default 
setting,

(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[  1223.420] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Sep 14 
08:40:10 2012

[  1223.420] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[  1223.420] (==) No Layout section.  Using the first Screen section.
[  1223.420] (==) No screen section available. Using defaults.
[  1223.421] (**) |-->Screen "Default Screen Section" (0)
[  1223.421] (**) |   |-->Monitor ""
[  1223.421] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[  1223.421] (==) Automatically adding devices
[  1223.421] (==) Automatically enabling devices
[  1223.421] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not 
exist.

[  1223.421] Entry deleted from font path.
[  1223.421] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
built-ins
[  1223.421] (==) ModulePath set to "/usr/lib/xorg/modules"
[  1223.421] (II) The server relies on udev to provide the list of input 
devices.
If no devices become available, reconfigure udev or disable 
AutoAddDevices.

[  1223.421] (II) Loader magic: 0xb77285a0
[  1223.421] (II) Module ABI versions:
[  1223.421] X.Org ANSI C Emulation: 0.4
[  1223.421] X.Org Video Driver: 12.0
[  1223.421] X.Org XInput driver : 16.0
[  1223.421] X.Org Server Extension : 6.0
[  1223.422] (--) PCI: (0:0:11:0) 14f1:5b7a:0070:7444 rev 0, Mem @ 
0xec00/67108864
[  1223.422] (--) PCI:*(0:1:0:0) 102b:0525:102b:0641 rev 130, Mem @ 
0xfc00/33554432, 0xf380/16384, 0xf300/8388608, BIOS @ 
0x/131072

[  1223.423] (II) Open ACPI successful (/var/run/acpid.socket)
[  1223.423] (II) LoadModule: "extmod"
[  1223.424] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[  1223.425] (II) Module extmod: vendor="X.Org Foundation"
[  1223.425] compiled for 1.12.3, module version = 1.0.0
[  1223.425] Module class: X.Org Server Extension
[  1223.425] ABI class: X.Org Server Extension, version 6.0
[  1223.425] (II) Loading extension SELinux
[  1223.425] (II) Loading extension MIT-SCREEN-SAVER
[  1223.425] (II) Loading extension XFree86-VidModeExtension
[  1223.425] (II) Loading extension XFree86-DGA
[  1223.425] (II) Loading extension DPMS
[  1223.425] (II) Loading extension XVideo
[  1223.425] (II) Loading extension XVideo-MotionCompensation
[  1223.425] (II) Loading extension X-Resource
[  1223.425] (II) LoadModule: "dbe"
[  1223.426] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[  1223.426] (II) Module dbe: vendor="X.Org Foundation"
[  1223.426] compiled for 1.12.3, module version = 1.0.0
[  1223.426] Module class: X.Org Server Extension
[  1223.426] ABI class: X.Org Server Extension, version 6.0
[  1223.426] (II) Loading extension DOUBLE-BUFFER
[  1223.426] (II) LoadModule: "glx"
[  1223.427] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[  1223.427] (II) Module glx: vendor="X.Org Foundation"
[  1223.427] compiled for 1.12.3, module version = 1.0.0
[  1223.427] ABI class: X.Org Server Extension, version 6.0
[  1223.427] (==) AIGLX enabled
[  1223.427] (II) Loading extension GLX
[  1223.427] (II) LoadModule: "record"
[  1223.428] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[  1223.428] (II) Module rec

Re: Storage server

[Stan Hoeppner]

On 9/14/2012 4:48 AM, Pertti Kosunen wrote:
> On 14.9.2012 2:45, Stan Hoeppner wrote:
>> Consumer hard drives will not work with most RAID cards.  As a general
>> rule, RAID cards require enterprise SATA drives or SAS drives.
> 
> http://wdc.com/en/products/products.aspx?id=810
> http://www.anandtech.com/show/6157/
> 
> Western Digitals new Red series is RAID-compatible.

Yes, and as such these drives do not fall into the consumer category.
Note they are marketed specifically for SOHO NAS boxen.  While they do
offer programmable TLER/ERC timeout with a suitable default of 7
seconds, they're not a good fit for anyone who desires performance along
with capacity, due to the slow 5400 RPM spindle speed.  In such a case
one's money is probably better spent buying a smaller quantity of 7.2K
RE4 or other enterprise SATA drives for about the same $$.

-- 
Stan


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Segmentation Error with digest_ldap_auth

[Bijoy Lobo]

Hi,

I am using squid 3.1 from debian stable repositories along with
OpenLDAP 2.4.23 again from debian stable repos. However when i run the
command to check my digest auth,
echo '"test1":"Squid proxy-caching web server"' |
/usr/lib/squid3/digest_ldap_auth -b "ou=people,dc=paladion,dc=com" -u
"uid" -A "userPassword" -D "cn=admin,dc=paladion,dc=com" -w "test@123"
-e -v 3 -h 127.0.0.1 -d

I get this,
Connected OK
searchbase 'ou=people,dc=paladion,dc=com'
Segmentation fault

Any help?

-- 
Thanks and Regards
Bijoy Lobo
Paladion Networks


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Wheezy managesieve segfault

[Denis Witt]

Hi List,

recently I updated one of my Wheezy Servers, since this update
managesieve (Dovecot) fails with a segfault when I try to edit the
filter script using the Sieve Filter Addon for Thunderbird.

Here's the logfile entry:

Sep 14 13:09:14 pdc kernel: [2937237.530373] managesieve[10194]:
segfault at 0 ip 7fe185011664 sp 7fffc8118ad8 error 4 in
libc-2.13.so[7fe184f01000+17d000]

Any ideas?

Thanks.

Best regards
Denis Witt


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Re: Kernel throwing exception once in a while

[krish]

Hi,


I wasn't really sure which package to report this bug against, so
writing it to the lists.

This is happening randomly almost everyday. Not able to figure out why


Here's our uname -a

# uname -a
Linux  3.5.2-x86_64-linode26 #1 SMP Wed Aug 15
14:31:07 EDT 2012 x86_64 GNU/Linux




Sep 14 04:46:01 n4 kernel: [ cut here ]
Sep 14 04:46:01 n4 kernel: WARNING: at net/core/skbuff.c:3414
skb_try_coalesce+0x1d7/0x2dd()
Sep 14 04:46:01 n4 kernel: Modules linked in:
Sep 14 04:46:01 n4 kernel: Pid: 0, comm: swapper/0 Not tainted
3.5.2-x86_64-linode26 #1
Sep 14 04:46:01 n4 kernel: Call Trace:
Sep 14 04:46:01 n4 kernel:   []
warn_slowpath_common+0x80/0x98
Sep 14 04:46:01 n4 kernel: [] warn_slowpath_null+0x15/0x17
Sep 14 04:46:01 n4 kernel: [] skb_try_coalesce+0x1d7/0x2dd
Sep 14 04:46:01 n4 kernel: [] ? ip6t_do_table+0x3b5/0x3e3
Sep 14 04:46:01 n4 kernel: [] tcp_try_coalesce+0x4c/0xa4
Sep 14 04:46:01 n4 kernel: [] ? local_bh_enable+0xd/0xf
Sep 14 04:46:01 n4 kernel: [] tcp_queue_rcv+0x52/0x9a
Sep 14 04:46:01 n4 kernel: [] tcp_rcv_established+0x348/0x4e1
Sep 14 04:46:01 n4 kernel: [] tcp_v6_do_rcv+0xbc/0x325
Sep 14 04:46:01 n4 kernel: [] tcp_v6_rcv+0x461/0x6fd
Sep 14 04:46:01 n4 kernel: [] ip6_input_finish+0x1e4/0x2b2
Sep 14 04:46:01 n4 kernel: [] ? T.1042+0x4f/0x4f
Sep 14 04:46:01 n4 kernel: [] T.1043+0x4c/0x53
Sep 14 04:46:01 n4 kernel: [] ? ip6_forward+0x5de/0x5de
Sep 14 04:46:01 n4 kernel: [] ip6_input+0x1c/0x1e
Sep 14 04:46:01 n4 kernel: [] ip6_rcv_finish+0x29/0x2d
Sep 14 04:46:01 n4 kernel: [] T.1043+0x4c/0x53
Sep 14 04:46:01 n4 kernel: [] ipv6_rcv+0x2bc/0x2f0
Sep 14 04:46:01 n4 kernel: [] __netif_receive_skb+0x379/0x3bb
Sep 14 04:46:01 n4 kernel: [] netif_receive_skb+0x71/0x78
Sep 14 04:46:01 n4 kernel: [] handle_incoming_queue+0x7c/0x11a
Sep 14 04:46:01 n4 kernel: [] xennet_poll+0x547/0x611
Sep 14 04:46:01 n4 kernel: [] net_rx_action+0xb6/0x22f
Sep 14 04:46:01 n4 kernel: [] ? _raw_spin_lock+0x9/0xd
Sep 14 04:46:01 n4 kernel: [] ? info_for_irq+0x9/0x19
Sep 14 04:46:01 n4 kernel: [] __do_softirq+0xc8/0x1a4
Sep 14 04:46:01 n4 kernel: [] ? handle_edge_irq+0xb8/0xca
Sep 14 04:46:01 n4 kernel: [] call_softirq+0x1c/0x30
Sep 14 04:46:01 n4 kernel: [] do_softirq+0x41/0x7e
Sep 14 04:46:01 n4 kernel: [] irq_exit+0x44/0xb2
Sep 14 04:46:01 n4 kernel: [] xen_evtchn_do_upcall+0x2f/0x3d
Sep 14 04:46:01 n4 kernel: []
xen_do_hypervisor_callback+0x1e/0x30
Sep 14 04:46:01 n4 kernel:   [] ?
hypercall_page+0x3aa/0x1000
Sep 14 04:46:01 n4 kernel: [] ? hypercall_page+0x3aa/0x1000
Sep 14 04:46:01 n4 kernel: [] ? xen_safe_halt+0x10/0x1a
Sep 14 04:46:01 n4 kernel: [] ? default_idle+0x4b/0x85
Sep 14 04:46:01 n4 kernel: [] ? cpu_idle+0x65/0xa1
Sep 14 04:46:01 n4 kernel: [] ? rest_init+0x6d/0x6f
Sep 14 04:46:01 n4 kernel: [] ? start_kernel+0x34d/0x35a
Sep 14 04:46:01 n4 kernel: [] ? kernel_init+0x130/0x130
Sep 14 04:46:01 n4 kernel: [] ?
x86_64_start_reservations+0xb8/0xbd
Sep 14 04:46:01 n4 kernel: [] ? xen_start_kernel+0x568/0x56f
Sep 14 04:46:01 n4 kernel: ---[ end trace 0db5757b0051d5bf ]---



This is happening to 2 boxes where we have apache running on it and
they are identical (both in configuration and software .. managed via
puppet) to other apache servers which do not have this problem.


Any help/pointers is appreciated.

Thank you,

--
Krish


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Re: Storage server

[Jon Dowland]

On Thu, Sep 13, 2012 at 12:20:55PM +0200, Veljko wrote:
> Can you please explain what design flaw is that? Isn't directory with
> complete backup (but not occupying that much space due to hard links
> usage) very usable for backup? If slow work can be avoided by the use of
> XFS, what would be wrong about rsnapshot?

Read my prior posts about it in this thread. It's fine for backup, the problem
is when you try to remove old snapshots, or perform a restore, or otherwise
manipulate the backup trees.

By comparison with a CPU-intensive program. It doesn't matter how fast your
CPU is, if your program is doing a busy-wait. It will consume 100% of whatever
CPU you throw at it. Program design is important.


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Re: networking with virtual machine

[Chris Davies]

lee  wrote:
> That seems to suggest using a bridge[1], and I find that very
> confusing. I understand that apparently I am supposed to replace my
> currently used eth1 by a bride device which uses eth1 and to which I
> could add other physical devices like eth0. I don't understand what the
> purpose of adding more physical devices would be and what I actually
> get when I have such a bridge device and what all that has to do with
> a guest.

Ah. Consider a bridge to be a software implementation of a network switch.

Currently your networking subsystem refers to eth1, which represents the
NIC itself. With a bridge, your networking subsystem would refer to a
bridge called br1 (say), and the bridge would connect to your eth1. (The
bridge name is completely arbitrary; you could call it eth3 if you really
wanted to.)

The reason you would use a bridge is because then each of your VMs could
also connect to the bridge and therefore to eth1, and your host system
and each of the VMs would have separate IP addresses, etc.


> It seems to me that having the bridge device in theory would somehow
> magically enable me to give the guest an IP address in the same network
> as the host is.

The guest would become visible to your network as a distinct entity
to the host, and could get an address using DHCP (if your network uses
this), etc.


> That isn't what I want because I want the guest behind the firewall
> which is on the host (using shorewall).

This is actually two unrelated things that you've squashed together. It
is completely possible for the host's firewall to restrict access to
a guest, regardless of whether the guest is hidden by the host or it
appears as an independent system on your network.

If you are going to use bridging, though, you do need to tell shorewall
about it. See http://www.shorewall.net/SimpleBridge.html

Your VM networking choices are these:

1. Bridge - allows the guest to appear on your network as a separate
entity to the host
2. NAT - hides the guest behind your host IP address; you'll need to
provide some form of proxying (port forwarding) on your host to
allow inbound connections to your guest
3. Internal networking - the guest can communicate only with the host
4. No networking - like it says

Chris


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Kernel throwing exception once in a while

[krish]

Hi,


I wasn't really sure which package to report this bug against, so
writing it to the lists.

This is happening randomly almost everyday. Not able to figure out why


Here's our uname -a

# uname -a
Linux  3.5.2-x86_64-linode26 #1 SMP Wed Aug 15
14:31:07 EDT 2012 x86_64 GNU/Linux




Sep 14 04:46:01 n4 kernel: [ cut here ]
Sep 14 04:46:01 n4 kernel: WARNING: at net/core/skbuff.c:3414
skb_try_coalesce+0x1d7/0x2dd()
Sep 14 04:46:01 n4 kernel: Modules linked in:
Sep 14 04:46:01 n4 kernel: Pid: 0, comm: swapper/0 Not tainted
3.5.2-x86_64-linode26 #1
Sep 14 04:46:01 n4 kernel: Call Trace:
Sep 14 04:46:01 n4 kernel:   []
warn_slowpath_common+0x80/0x98
Sep 14 04:46:01 n4 kernel: [] warn_slowpath_null+0x15/0x17
Sep 14 04:46:01 n4 kernel: [] skb_try_coalesce+0x1d7/0x2dd
Sep 14 04:46:01 n4 kernel: [] ? ip6t_do_table+0x3b5/0x3e3
Sep 14 04:46:01 n4 kernel: [] tcp_try_coalesce+0x4c/0xa4
Sep 14 04:46:01 n4 kernel: [] ? local_bh_enable+0xd/0xf
Sep 14 04:46:01 n4 kernel: [] tcp_queue_rcv+0x52/0x9a
Sep 14 04:46:01 n4 kernel: [] tcp_rcv_established+0x348/0x4e1
Sep 14 04:46:01 n4 kernel: [] tcp_v6_do_rcv+0xbc/0x325
Sep 14 04:46:01 n4 kernel: [] tcp_v6_rcv+0x461/0x6fd
Sep 14 04:46:01 n4 kernel: [] ip6_input_finish+0x1e4/0x2b2
Sep 14 04:46:01 n4 kernel: [] ? T.1042+0x4f/0x4f
Sep 14 04:46:01 n4 kernel: [] T.1043+0x4c/0x53
Sep 14 04:46:01 n4 kernel: [] ? ip6_forward+0x5de/0x5de
Sep 14 04:46:01 n4 kernel: [] ip6_input+0x1c/0x1e
Sep 14 04:46:01 n4 kernel: [] ip6_rcv_finish+0x29/0x2d
Sep 14 04:46:01 n4 kernel: [] T.1043+0x4c/0x53
Sep 14 04:46:01 n4 kernel: [] ipv6_rcv+0x2bc/0x2f0
Sep 14 04:46:01 n4 kernel: [] __netif_receive_skb+0x379/0x3bb
Sep 14 04:46:01 n4 kernel: [] netif_receive_skb+0x71/0x78
Sep 14 04:46:01 n4 kernel: [] handle_incoming_queue+0x7c/0x11a
Sep 14 04:46:01 n4 kernel: [] xennet_poll+0x547/0x611
Sep 14 04:46:01 n4 kernel: [] net_rx_action+0xb6/0x22f
Sep 14 04:46:01 n4 kernel: [] ? _raw_spin_lock+0x9/0xd
Sep 14 04:46:01 n4 kernel: [] ? info_for_irq+0x9/0x19
Sep 14 04:46:01 n4 kernel: [] __do_softirq+0xc8/0x1a4
Sep 14 04:46:01 n4 kernel: [] ? handle_edge_irq+0xb8/0xca
Sep 14 04:46:01 n4 kernel: [] call_softirq+0x1c/0x30
Sep 14 04:46:01 n4 kernel: [] do_softirq+0x41/0x7e
Sep 14 04:46:01 n4 kernel: [] irq_exit+0x44/0xb2
Sep 14 04:46:01 n4 kernel: [] xen_evtchn_do_upcall+0x2f/0x3d
Sep 14 04:46:01 n4 kernel: []
xen_do_hypervisor_callback+0x1e/0x30
Sep 14 04:46:01 n4 kernel:   [] ?
hypercall_page+0x3aa/0x1000
Sep 14 04:46:01 n4 kernel: [] ? hypercall_page+0x3aa/0x1000
Sep 14 04:46:01 n4 kernel: [] ? xen_safe_halt+0x10/0x1a
Sep 14 04:46:01 n4 kernel: [] ? default_idle+0x4b/0x85
Sep 14 04:46:01 n4 kernel: [] ? cpu_idle+0x65/0xa1
Sep 14 04:46:01 n4 kernel: [] ? rest_init+0x6d/0x6f
Sep 14 04:46:01 n4 kernel: [] ? start_kernel+0x34d/0x35a
Sep 14 04:46:01 n4 kernel: [] ? kernel_init+0x130/0x130
Sep 14 04:46:01 n4 kernel: [] ?
x86_64_start_reservations+0xb8/0xbd
Sep 14 04:46:01 n4 kernel: [] ? xen_start_kernel+0x568/0x56f
Sep 14 04:46:01 n4 kernel: ---[ end trace 0db5757b0051d5bf ]---



This is happening to 2 boxes where we have apache running on it and
they are identical (both in configuration and software .. managed via
puppet) to other apache servers which do not have this problem.


Any help/pointers is appreciated.

Thank you,


-- 
Krish
Hey! Checkout my new startup * www.toonheart.com *
Like Us if you Like Us! - facebook.com/toonheart


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Re: Storage server

[Pertti Kosunen]

On 14.9.2012 2:45, Stan Hoeppner wrote:

Consumer hard drives will not work with most RAID cards.  As a general
rule, RAID cards require enterprise SATA drives or SAS drives.


http://wdc.com/en/products/products.aspx?id=810
http://www.anandtech.com/show/6157/

Western Digitals new Red series is RAID-compatible.


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Re: Storage server

[Denis Witt]

On Thu, 13 Sep 2012 12:22:45 +0200
Veljko  wrote:

> obnam and rdiff-backup seems to use less space, but I also like very
> clear representation of backups on rsnapshot. But during few days of
> testing each of them I'll know what to use. 

I think rdiff-backup is a good choice for your needs. It has (for the
latest backup) a similar concept like rsnapshot, so you can access the
files easily.

If you ever move on to a dedicated backup server I think obnam will be
interesting again, mainly because of the Repository-Concept.

I'm currently testing obnam on our external Backup-Server together with
6 clients. It's very easy to set up. Restore could be nicer if you need
an older version of some file but it's rather fast and it is possible
to restore single files only, so you might have to look at several
versions to find the right one, but this shouldn't take too much time.

Also it doesn't matter much where you want to restore the file, any
machine which can access (or can be accessed by) the Backup-Server via
SSH will do.

Best regards
Denis Witt


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Re: Storage server

[Denis Witt]

On Thu, 13 Sep 2012 12:21:44 +0200
Veljko  wrote:

> I've heard of it, but don't know anyone who uses it. Any experience
> with it?

Our former Hosting Provider used Amanda, I never liked it (but maybe
because of the interface the Provider used for it). I think for Veljko
needs it is much to complex. Also it lacks some modern features (AFAIK)
like de-duplication, etc.

Best regards
Denis Witt


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RE: [OT] Re: workforce 645 printer can't find other network assets (SOLVED SORT OF)

[Bonno Bloksma]

Hi Gary,

Not really Debian related anymore but here is a quick answer.

> I gave up. I took the Epson back an traded it in for an HP Office Jet Pro 
> 8600.
> I've had minimal trouble installing the thing on both Linux and XP systems. 
> Everything works.
> I still can't get the Win2K system to work. Does anyone know where you can 
> get print drivers for this.
> I have the HP 8600  and my XP laptop connected wireless to the  router.
> All other systems are etherneted. The Win2K system can't seem to find the 
> printer.

Find the ip-number for the printer, add a LOCAL printer manually in Win2k and 
create a new port, a standard tcp/ip-port. Enter the ip-number.

Now the fun part starts, finding a printer driver as the Win2k driver model is 
different from WinXP. WinXP could still use older Win2k driver but that is no 
help to you now.
Look for a black and white printer using just PCL and print a test page. Try 
that first and if it works go for a color printer using PCL.
According to the HP site you printer speaks HP PCL 3 GUI and HP PCL 3 Enhanced

Bonno Bloksma


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