Re: [gentoo-user] Re: best circuit drawing software

[Petric Frank]

Hello Maxim,

On Samstag, 1. März 2008, Grant Edwards wrote:
> On 2008-03-01, maxim wexler <[EMAIL PROTECTED]> wrote:
> > Hi group,
> >
> > I need to post some drawings of a circuit I'm working
> > on to an electronics group.
> >
> > Nothing too elaborate, just sketches really, but with
> > the proper symbology.
>
> Along with the other suggestions, there's Eagle, but it might
> be a bit of overkill.

There is gEDA (http://geda.seul.org). Maybe it solves your needs.

regards
  Petric
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Re: [gentoo-user] Ghosting a Ext3 partition

[Etaoin Shrdlu]

On Friday 29 February 2008, Jonathan Haws wrote:

> Doesn't Ghost work with Ext3?  What can I do to recover my system
> without reinstalling from scratch?

Don't know about ghost, but take a look at partimage 
(http://partimage.org).
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Re: [gentoo-user] [OT] beware ebay seller

[b.n.]

maxim wexler ha scritto:
> Hi group,
> 
> If you're looking for PC power supply on ebay and you
> come across a Dynex, big quiet fan, PCI-E, SATA, 24
> pin for cheap from 2213Joseph. "New in Box!" Don't buy
> it. You'll get the Dynex box alright and a new PS but
> it's just a run of the mill, noisy, substandard unit.
> No SATA, no PCI-E etc.
> 
> This is such an obvious fraud it makes me wonder at
> his 100% positive feedback.
> 
> I've started a dispute with Paypal against him.

That's why, I never buy hardware on eBay, and I discourage everyone to
do it.

Heck, I even had scams when buying CD-R.

m.
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Re: [gentoo-user] Ghosting a Ext3 partition

[Florian Philipp]

On Fri, 2008-02-29 at 12:27 -0700, Jonathan Haws wrote:
> I am having a major problem right now with my laptop.
> 
> I regularly make backups of my system using Norton Ghost 2003 to DVD.  
> However, my laptop crashed and I tried to restore my backup that I had made 
> and it restores just find but when I try and boot it tells me that my Ext3 
> filesystem is corrupt and had errors and I would have to run fsck manually.
> 
> When I ran fsck it told be that about every inode was invalid and that Group 
> X 
> had all sorts of other problems (I can't remember every little detail).
> 
> Doesn't Ghost work with Ext3?  What can I do to recover my system without 
> reinstalling from scratch?
> 
> Thanks!
> 
> Jon
> 

You could try testdisk. Maybe it can recover. Or try mke2fs -S 


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Re: [gentoo-user] [OT] beware ebay seller

[Volker Armin Hemmann]

On Samstag, 1. März 2008, b.n. wrote:
> maxim wexler ha scritto:
> > Hi group,
> >
> > If you're looking for PC power supply on ebay and you
> > come across a Dynex, big quiet fan, PCI-E, SATA, 24
> > pin for cheap from 2213Joseph. "New in Box!" Don't buy
> > it. You'll get the Dynex box alright and a new PS but
> > it's just a run of the mill, noisy, substandard unit.
> > No SATA, no PCI-E etc.
> >
> > This is such an obvious fraud it makes me wonder at
> > his 100% positive feedback.
> >
> > I've started a dispute with Paypal against him.
>
> That's why, I never buy hardware on eBay, and I discourage everyone to
> do it.
>
> Heck, I even had scams when buying CD-R.

well, I buyed hardware over 40 times on ebay - and I was always a very 
satisfied costumer. From mainboards, cpus to tapedrives and libs, I always 
got the right stuff. 
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[gentoo-user] Set a property on a file and have it remove when the file is modified?

[Erik]

Is it possible to set a property on a file and have it remove 
automatically when the file is modified?


Suppose that we have a style checker that checks a lot of source code 
files. Once it examined a file and found it to be clean, it should set a 
property on the file ("style-clean"). Whenever the style checker is 
executed it skips files with this property. Whenever the file is 
modified, the filesystem removes the property.


Is this possible? Which filesystems does it work on?
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[gentoo-user] [OT] Calendar application

[Dan Johansson]

I'm looking for a Calendar application with the following features:

* Server based (multiple clients, Linux & M$)
* Must work with KDE-KOrganizer and Thunderbird-Lightning
* Support for Private and Shared Calendars
* WEB-access is a plus but not a must
* OpenSource
* Preferably in portage

Any suggestions?
-- 
Dan Johansson, 
***
This message is printed on 100% recycled electrons!
***


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Re: [gentoo-user] Set a property on a file and have it remove when the file is modified?

[Florian Philipp]

On Sat, 2008-03-01 at 13:40 +0100, Erik wrote:
> Is it possible to set a property on a file and have it remove 
> automatically when the file is modified?
> 
> Suppose that we have a style checker that checks a lot of source code 
> files. Once it examined a file and found it to be clean, it should set a 
> property on the file ("style-clean"). Whenever the style checker is 
> executed it skips files with this property. Whenever the file is 
> modified, the filesystem removes the property.
> 
> Is this possible? Which filesystems does it work on?

Looks like you are looking for extended attributes:
http://en.wikipedia.org/wiki/Extended_attributes

But I don't think you can make them "disappear" by modifying a file.

Inotify might be a solution for that problem:
http://en.wikipedia.org/wiki/Inotify

Alternatively you could check the file modification times as stored by
default on every FS. You could use "find" for that or "ls --full-time".


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Re: [gentoo-user] Set a property on a file and have it remove when the file is modified?

[Etaoin Shrdlu]

On Saturday 1 March 2008, Erik wrote:
> Is it possible to set a property on a file and have it remove
> automatically when the file is modified?
>
> Suppose that we have a style checker that checks a lot of source code
> files. Once it examined a file and found it to be clean, it should set
> a property on the file ("style-clean"). Whenever the style checker is
> executed it skips files with this property. Whenever the file is
> modified, the filesystem removes the property.
>
> Is this possible? Which filesystems does it work on?

This is just an idea, and take it for what it is.

I seem to remember that on fat filesystems, files used to have 
the "archive" attribute (along with the "hidden", "system", "readonly" 
attributes), which (back in the DOS/Win9x days) was meant to inform 
backup programs that the file was to be archived. The way it worked was 
more or less like this: when a file was created or modified, the OS set 
the "archive" flag for the file. The backup program, after backing up 
the file, cleared the flag.

*If* linux implementations of the fat filesystem handle the "archive" 
flag (ie, set it when a file is modified), it should be possible to 
exploit this feature to your advantage.
Just have the syntax checker clear the flag for a file upon succesful 
check, and have it run only on files with the flag set. When an 
application modifies the file, the flag will automatically be set again 
for that file (if it wasn't already, of course).
If the above is true, "mattrib" (from the mtools package) can be used to 
manipulate fat attributes for a file.
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[gentoo-user] Can't boot Compaq Proliant 1600

[Daniel da Veiga]

Hello list,

I am struggling with an old Compaq Proliant 1600 for a while. It boots
perfectly using the Minimal Install CD, and all the install process
goes well. When its time to boot its own kernel, GRUB loads the files,
goes to the message "OK, booting the kernel." and just hangs there. I
used genkernel to compile the kernel. I'm now trying to compile it
manually to see if it will work.

Please note that this particular machine has no SMART-2 Array
controller, so the disks are seen as common SCSI devices (sda and
sdb), currently I'm installing the whole system at sda, leaving "b"
untouched for backup purposes when I get this beast up and running.

Anyone has any experience booting one of these machines?

-- 
Daniel da Veiga
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Re: [gentoo-user] [Probably off-topic] How do I find out what is consuming the bandwidth?

[Drew Tomlinson]

Alan McKinnon wrote:

On Saturday 01 March 2008, Mike Mazur wrote:
  

Hi,

On Sat, Mar 1, 2008 at 2:26 AM, Steve <[EMAIL PROTECTED]> wrote:


Situation: There's a LAN with a Netgear ADSL router... heterogenous
OS, including Gentoo, are installed on various PCs on the LAN.

 I'd like to know what communicating IPs are consuming most
bandwidth, and to quantify how much bandwidth they are using...
Ideally, I'd like to see a real-time list of the main bandwidth
consuming communicators...
  

So you want to monitor the traffic going through your router?

I imagine that would be difficult to do from one of the endpoints in
your LAN (your Gentoo box). The switch should only route to your
machine traffic destined for it, so how to measure the bandwidth the
other machines are consuming between themselves and the outside
world?

If there is a way to do this I'd be very interested :)



Sometimes the router has an accounting feature. Otherwise you need to 
make a Linux box the gateway for the entire LAN and hang the ADSL 
router off one of it's interfaces. Then do accounting via any one of 
numerous tools
  
I concur with the above poster and use a FreeBSD machine as my gateway.  
There is a tool called 'trafshow' I use for quick real time traffic 
analysis which might be useful for you.  I found it in portage:


net-analyzer/trafshow

Cheers,

Drew

--
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Visit The Alchemist's Warehouse

http://www.alchemistswarehouse.com

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Re: [gentoo-user] Set a property on a file and have it remove when the file is modified?

[Matthias Guede]

2008/3/1, Erik <[EMAIL PROTECTED]>:
> Is it possible to set a property on a file and have it remove
>  automatically when the file is modified?
>
>  Suppose that we have a style checker that checks a lot of source code
>  files. Once it examined a file and found it to be clean, it should set a
>  property on the file ("style-clean"). Whenever the style checker is
>  executed it skips files with this property. Whenever the file is
>  modified, the filesystem removes the property.
>
>  Is this possible? Which filesystems does it work on?

One solution would be using 'make'.  With rules like the following
only modified files will
be proceeded:

timestamp: myFile
  doSomthingWidth myFile
  touch timestamp
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Re: [gentoo-user] Set a property on a file and have it remove when the file is modified?

[Erik]

Matthias Guede skrev:

2008/3/1, Erik <[EMAIL PROTECTED]>:
  

Is it possible to set a property on a file and have it remove
 automatically when the file is modified?

 Suppose that we have a style checker that checks a lot of source code
 files. Once it examined a file and found it to be clean, it should set a
 property on the file ("style-clean"). Whenever the style checker is
 executed it skips files with this property. Whenever the file is
 modified, the filesystem removes the property.

 Is this possible? Which filesystems does it work on?



One solution would be using 'make'.  With rules like the following
only modified files will
be proceeded:

timestamp: myFile
  doSomthingWidth myFile
  touch timestamp
  


We have thought about that, but we would like to avoid having a parallel 
file hierarchy of timestamp files for our source tree. Therefore 
something like the archive attribute (suggested by Etanoi Shrdlu) would 
be better.

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[gentoo-user] Can anyone tell me?

[Chris Walters]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Hello,

Can anyone tell me what packages you know of that will break your system if you
choose to put "ACCEPT_KEYWORDS=~amd64" in your make.conf file?  I have had my
system break, twice now, from a package upgrade - I think that one of the
culprits is gawk, but can't be certain.

I do know that the only way to fix the problem was to restore from backup, or
to try re-installing again.  I just want to know which packages are so unstable
that I should mask them.  TIA.

Regards,
Chris


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VBfTw5gYqqXTfwsWwb8WiDQ=
=+py3
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Re: [gentoo-user] best circuit drawing software

[don]

On Sat, Mar 01, 2008 at 10:17:27AM +0900, Mike Mazur wrote:
> Your sketches can be saved as .png or .jpg so anyone should be able to
> view them.

The best format for line drawings is a vector format like svg.
With a vector format the image can be scaled to any size and still
stay sharp.

A bitmap with lossless compression like png is tolerable.

Please don't use jpeg.  It uses lossy compression that is designed for
photos.  They end up fuzzy.

-- 
Don Reid
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Re: [gentoo-user] Can anyone tell me?

[Mark Knecht]

On Sat, Mar 1, 2008 at 11:09 AM, Chris Walters <[EMAIL PROTECTED]> wrote:
> -BEGIN PGP SIGNED MESSAGE-
>  Hash: SHA512
>
>  Hello,
>
>  Can anyone tell me what packages you know of that will break your system if 
> you
>  choose to put "ACCEPT_KEYWORDS=~amd64" in your make.conf file?  I have had my
>  system break, twice now, from a package upgrade - I think that one of the
>  culprits is gawk, but can't be certain.
>
>  I do know that the only way to fix the problem was to restore from backup, or
>  to try re-installing again.  I just want to know which packages are so 
> unstable
>  that I should mask them.  TIA.
>
>  Regards,
>  Chris
>

Hi Chris,
   I don't think your question can be answered as phrased.

   *Any* package marked with '~' is 'new', 'in testing', 'unstable',
etc. Very few (in my experience) 'break' my machine, but I have a rule
that any package energed as part of emerge system must be stable and I
personally add ~x86 or ~amd64 only for specific packages that I want
or need some new feature.

Hope this helps,
Mark
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Re: [gentoo-user] [Probably off-topic] How do I find out what is consuming the bandwidth?

[Alan McKinnon]

On Saturday 01 March 2008, Drew Tomlinson wrote:
> > Sometimes the router has an accounting feature. Otherwise you need
> > to make a Linux box the gateway for the entire LAN and hang the
> > ADSL router off one of it's interfaces. Then do accounting via any
> > one of numerous tools
> >  
>
> I concur with the above poster and use a FreeBSD machine as my
> gateway.   There is a tool called 'trafshow' I use for quick real
> time traffic analysis which might be useful for you.  I found it in
> portage:
>
> net-analyzer/trafshow

There's one other way that I just remembered (for future reference). You 
don't *have* to use a linux machine as a gateway if you have a decent 
managed switch - set it to route all traffic on all ports out through 
the port that a monitoring machine is connected to. In other words, 
that one part acts like a hub. Now that the monitoring machine can see 
every bit on the entire Ethernet, it can count 'em :-)

However, these switches cost a fortune and I very much doubt that the 
el-cheapo ADSL routers on the market have this feature. Both of mine 
certainly don't.

-- 
Alan McKinnon
alan dot mckinnon at gmail dot com

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Re: [gentoo-user] Can't boot Compaq Proliant 1600

[Alan McKinnon]

On Saturday 01 March 2008, Daniel da Veiga wrote:
> Hello list,
>
> I am struggling with an old Compaq Proliant 1600 for a while. It
> boots perfectly using the Minimal Install CD, and all the install
> process goes well. When its time to boot its own kernel, GRUB loads
> the files, goes to the message "OK, booting the kernel." and just
> hangs there. I used genkernel to compile the kernel. I'm now trying
> to compile it manually to see if it will work.
>
> Please note that this particular machine has no SMART-2 Array
> controller, so the disks are seen as common SCSI devices (sda and
> sdb), currently I'm installing the whole system at sda, leaving "b"
> untouched for backup purposes when I get this beast up and running.
>
> Anyone has any experience booting one of these machines?

Not this specific model, but I would start by comparing the boot command 
and modules loaded from the Minimal CD with what you are trying to use 
when booting the installed OS.

Supplying some error messages, command lines and even a relevant config 
file or two at this point might be found to be useful by those inclined 
to help you out of this predicament...


-- 
Alan McKinnon
alan dot mckinnon at gmail dot com

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[gentoo-user] Re: [OT] beware ebay seller

[Mick]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Volker Armin Hemmann wrote:

> On Samstag, 1. März 2008, b.n. wrote:
>> maxim wexler ha scritto:

>> > This is such an obvious fraud it makes me wonder at
>> > his 100% positive feedback.
>> >
>> > I've started a dispute with Paypal against him.
>>
>> That's why, I never buy hardware on eBay, and I discourage everyone to
>> do it.
>>
>> Heck, I even had scams when buying CD-R.
> 
> well, I buyed hardware over 40 times on ebay - and I was always a very
> satisfied costumer. From mainboards, cpus to tapedrives and libs, I always
> got the right stuff.

Same here, I have bought a few PCs/laptops and various individual components
and have not yet had a problem.  However, I have only bought from HP-Compaq
online auction shop on ebay.co.uk.  They sell rebuilt, or end of line PCs,
usually with upgraded components and one year's manufacturer's warranty.  I
have found that as long as you don't get carried away you can get a machine
cheaper than any of the chains that sell them over here in the UK, even if
they are 'On Sale' at these shops.
- -- 
Regards,
Mick
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[gentoo-user] Re: Ghosting a Ext3 partition

[davecode]

"What supports what" is a good reason for non-filesystem backups.  For
example partimage has trouble with XFS (still...after all these
years...).  A program like dd doesn't care the fs.  Call it a device
backup if you like.  This is your basic choice in backup - device or fs.
 Me personally, dd_rescue - far better than raw dd.

Your backup strategy has implications for partitioning Linux.  I make
backup partitions with the same byte count.  But that's over the top for
most.  They don't need to match exactly for dev bkups.  And of course
you don't go dev-to-dev all the time, sometimes dev-to-file and
file-to-dev.  Don't forget the MBR which dd can backup:  dd if=/dev/hdX
bs=512 count=1 of=MBR.dd

Who knows what Linux formats Ghost may or may not support.  It's passe
even for Windows.  They use DOS drivers for everything.  That's right
16-bit DOS.  I am amazed Norton can make money selling stuff like that. 
Norton may have hosed your fs.

For repairs and backup it's better to boot something like www.grml.org
live CD with lots of good admin tools and fs support.  You can run ext3
repairs from that.  Man e2fsck or whatnot.

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[gentoo-user] mlmmj get-Nth message

[davecode]

How does this work?  I am on nomail option so I need to pull the message
ID from a web archive.  What does such an ID look like?  What does the
corresponding mlmmj query message look like?  I tried a couple of
experiments but nothing worked for me.

This is the only way for my replies to fit into threads properly:  pull
the message by query and reply from emailer.


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Re: [gentoo-user] Can anyone tell me?

[Dan Farrell]

On Sat, 1 Mar 2008 12:16:36 -0800
"Mark Knecht" <[EMAIL PROTECTED]> wrote:

> On Sat, Mar 1, 2008 at 11:09 AM, Chris Walters <[EMAIL PROTECTED]>
> wrote:
> > -BEGIN PGP SIGNED MESSAGE-
> >  Hash: SHA512
> >
> >  Hello,
> >
> >  Can anyone tell me what packages you know of that will break your
> > system if you choose to put "ACCEPT_KEYWORDS=~amd64" in your
> > make.conf file?  I have had my system break, twice now, from a
> > package upgrade - I think that one of the culprits is gawk, but
> > can't be certain.
> >
> >  I do know that the only way to fix the problem was to restore from
> > backup, or to try re-installing again.  I just want to know which
> > packages are so unstable that I should mask them.  TIA.

doesn't sound like a broken package to me.  perhaps something else got
borked?  

> >  Regards,
> >  Chris
> >
> 
> Hi Chris,
>I don't think your question can be answered as phrased.
> 
>*Any* package marked with '~' is 'new', 'in testing', 'unstable',
> etc. Very few (in my experience) 'break' my machine, but I have a rule
> that any package energed as part of emerge system must be stable and I
> personally add ~x86 or ~amd64 only for specific packages that I want
> or need some new feature.

My experience is the same as Mark's.  I use ~amd64 only when
necessary, and although sometimes it doesn't work or is buggy
afterwords (after all, it's testing) it has never once broken the
system.   That having been said, I wouldn't use it for system critical
anything (other than the kernel).  


> Hope this helps,
> Mark
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Re: [gentoo-user] Ghosting a Ext3 partition

[Dan Farrell]

On Sat, 1 Mar 2008 02:04:31 -0500
"Ritesh Kumar" <[EMAIL PROTECTED]> wrote:

> On Fri, Feb 29, 2008 at 8:23 PM, maxim wexler <[EMAIL PROTECTED]>
> wrote:
> 
> > > Doesn't Ghost work with Ext3?  What can I do to
> > > recover my system without
> > > reinstalling from scratch?
> > >
> >
> > I've had success with #dd if=
> > of= bs=
> >
> >
> Is there a reason why you backup the filesystem along with the data
> on it? I do only minor backups... but even for anything major I would
> use a tool like tar or rsync and drop the filesystem metadata
> entirely.
> 
> Also directly reading from the block device is hazardous unless you
> umount (or mount as readonly) the filesystem in question. This is
> because, the filesystem may not keep all the data synced to the disk
> at all points in time.

not that i'd recommend it for production systems, but you could mount
with the 'sync' option to help with this.  

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Re: [gentoo-user] Re: [OT] beware ebay seller

[Dan Farrell]

On Sat, 01 Mar 2008 21:21:48 +
Mick <[EMAIL PROTECTED]> wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> Volker Armin Hemmann wrote:
> 
> > On Samstag, 1. März 2008, b.n. wrote:
> >> maxim wexler ha scritto:
> 
> >> > This is such an obvious fraud it makes me wonder at
> >> > his 100% positive feedback.
> >> >
> >> > I've started a dispute with Paypal against him.
> >>
> >> That's why, I never buy hardware on eBay, and I discourage
> >> everyone to do it.
> >>
> >> Heck, I even had scams when buying CD-R.
> > 
> > well, I buyed hardware over 40 times on ebay - and I was always a
> > very satisfied costumer. From mainboards, cpus to tapedrives and
> > libs, I always got the right stuff.
> 
> Same here, I have bought a few PCs/laptops and various individual
> components and have not yet had a problem.  However, I have only
> bought from HP-Compaq online auction shop on ebay.co.uk.  They sell
> rebuilt, or end of line PCs, usually with upgraded components and one
> year's manufacturer's warranty.  I have found that as long as you
> don't get carried away you can get a machine cheaper than any of the
> chains that sell them over here in the UK, even if they are 'On Sale'
> at these shops.
>

I don't buy on ebay much, although I bought my very first system there
(a pII xeon, oh I loved it).  anyhow, there's pretty good buyer
protection in place now.  your dispute should end well for you.  
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Re: [gentoo-user] Can't boot Compaq Proliant 1600

[Dale]

Alan McKinnon wrote:

On Saturday 01 March 2008, Daniel da Veiga wrote:
  

Hello list,

I am struggling with an old Compaq Proliant 1600 for a while. It
boots perfectly using the Minimal Install CD, and all the install
process goes well. When its time to boot its own kernel, GRUB loads
the files, goes to the message "OK, booting the kernel." and just
hangs there. I used genkernel to compile the kernel. I'm now trying
to compile it manually to see if it will work.

Please note that this particular machine has no SMART-2 Array
controller, so the disks are seen as common SCSI devices (sda and
sdb), currently I'm installing the whole system at sda, leaving "b"
untouched for backup purposes when I get this beast up and running.

Anyone has any experience booting one of these machines?



Not this specific model, but I would start by comparing the boot command 
and modules loaded from the Minimal CD with what you are trying to use 
when booting the installed OS.


Supplying some error messages, command lines and even a relevant config 
file or two at this point might be found to be useful by those inclined 
to help you out of this predicament...



  


I *think* I have one of these old boat anchors out in my shop.  I'm not 
sure if it still boots or not but I may could get you a .config file for 
the kernel if you have no luck any other way.  I say 'any other way' 
cause I would have to drag that monster in the house and hook it back up 
to the network to access it. 

Let me know if all else fails.  I'll check the model before hooking the 
tractor and chain to it.  LOL


Dale

:-)  :-) 
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Re: [gentoo-user] Ghosting a Ext3 partition

[Mark Kirkwood]

Dan Farrell wrote:

On Sat, 1 Mar 2008 02:04:31 -0500
"Ritesh Kumar" <[EMAIL PROTECTED]> wrote:

  

On Fri, Feb 29, 2008 at 8:23 PM, maxim wexler <[EMAIL PROTECTED]>
wrote:



Doesn't Ghost work with Ext3?  What can I do to
recover my system without
reinstalling from scratch?



I've had success with #dd if=
of= bs=


  

Is there a reason why you backup the filesystem along with the data
on it? I do only minor backups... but even for anything major I would
use a tool like tar or rsync and drop the filesystem metadata
entirely.

Also directly reading from the block device is hazardous unless you
umount (or mount as readonly) the filesystem in question. This is
because, the filesystem may not keep all the data synced to the disk
at all points in time.



not that i'd recommend it for production systems, but you could mount
with the 'sync' option to help with this.  

  
Even mounting sync is not safe, if you want to use dd for a backup then 
boot from the live cd to backup everything. Otherwise using these 
methods is risking a backup that once restored, does not work - not good 
for the blood pressure...


If you want to back the system up while it is running (in particular /), 
then you need to use a tool that understands how to create a backup 
image that is valid (i.e will boot) - something like xfsdump, dumpe2fs 
etc or smart tar/dump based tools like Amanda.


I would recommend using one of the dump tools for /boot, /, /usr, /var 
*at least*. I've had the misfortune of helping many people restore their 
broken Linux and Freebsd systems... and the only backups I've never had 
issues with have been the *dump variety. They are a little unfriendly at 
first, but they work.


regards

Mark




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Re: [gentoo-user] Ghosting a Ext3 partition

[Mark Kirkwood]

I wrote:



If you want to back the system up while it is running (in particular 
/), then you need to use a tool that understands how to create a 
backup image that is valid (i.e will boot) - something like xfsdump, 
*dumpe2fs* etc or smart tar/dump based tools like Amanda.
Hmm - dunno what I was thinking there -  'dumpe2fs' is completely wrong, 
should have written 'dump', sorry!


regards

Mark
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[gentoo-user] portage confusion

[maxim wexler]

Hi group,

Notice in the following portage has nothing to say
about "blockers" following a warning from
revdep-rebuild. And the -u switch calls forth an
earlier version of python but without the -u switch is
content to re-emerge the newer package which I already
have on my system.

This was all precipitated after emerge xcircuit I was
advised to upgrade tk and tclx and then
revdep-rebuild.

emerge -u tk just said zero packages to emerge. Not
"no ebuilds to satisfy 'tk'", zero packages. emerge -u
tclx upgraded to a slightly newer version however...


localhost heathen # revdep-rebuild
Configuring search environment for revdep-rebuild

Checking reverse dependencies...

Packages containing binaries and libraries broken by a
package update
will be emerged.

Collecting system binaries and libraries... done.
  (/root/.revdep-rebuild.1_files)

Collecting complete LD_LIBRARY_PATH... done.
  (/root/.revdep-rebuild.2_ldpath)

Checking dynamic linking consistency...
  broken /usr/lib/python2.3/lib-dynload/_bsddb.so
(requires  libdb-4.2.so)
  broken /usr/lib/python2.4/lib-dynload/_bsddb.so
(requires  libdb-4.2.so)
 done.
  (/root/.revdep-rebuild.3_rebuild)

Assigning files to ebuilds... done.
  (/root/.revdep-rebuild.4_ebuilds)

Evaluating package order... done.
  (/root/.revdep-rebuild.5_order)

All prepared. Starting rebuild...
emerge --oneshot  =dev-lang/python-2.4.4-r6
=dev-lang/python-2.3.5-r3
..
Calculating dependencies... done!

!!! Error: the http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#blocked


revdep-rebuild failed to emerge all packages
you have the following choices:

- if emerge failed during the build, fix the problems
and re-run revdep-rebuild
or
- use -X or --package-names as first argument (trys to
rebuild package, not exact
  ebuild)
or
- set ACCEPT_KEYWORDS="~" and/or
/etc/portage/package.unmask
  (and remove /root/.revdep-rebuild.5_order to be
evaluated again)
or
- modify the above emerge command and run it manually
or
- compile or unmerge unsatisfied packages manually,
remove temporary files and
  try again (you can edit package/ebuild list first)

To remove temporary files, please run:
rm /root/.revdep-rebuild*.?_*
localhost heathen # emerge -puv python

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild U ] dev-lang/python-2.3.6-r4 [2.3.5-r3]
USE="gdbm ipv6 ncurses readline ssl -berkdb -bootstrap
-build -doc -examples% -nocxx -nothreads% -tk -ucs2"
7,190 kB

Total: 1 package (1 upgrade), Size of downloads: 7,190
kB
localhost heathen # emerge -pv python

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ] dev-lang/python-2.4.4-r6  USE="gdbm
ipv6 ncurses readline ssl -berkdb -bootstrap -build
-doc -examples -nocxx -nothreads -tk -ucs2" 0 kB

Total: 1 package (1 reinstall), Size of downloads: 0
kB

But xcircuit seems to work OK. Is it safe to just
ignore this? I mean, I just completed emerge -uD world
a couple of weeks ago.

Maxim



  

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Re: [gentoo-user] Ghosting a Ext3 partition

[Rasmus Andersen]

On Sun, Mar 02, 2008 at 05:51:06PM +1300, Mark Kirkwood wrote:
> I wrote:
>>
>>
>> If you want to back the system up while it is running (in particular /), 
>> then you need to use a tool that understands how to create a backup image 
>> that is valid (i.e will boot) - something like xfsdump, *dumpe2fs* etc or 
>> smart tar/dump based tools like Amanda.
> Hmm - dunno what I was thinking there -  'dumpe2fs' is completely wrong, 
> should have written 'dump', sorry!

If you do backup live filesystems/data then dump is on par with dd; both
read from the underlying device and might bypass the kernel's page cache.
Ie., there might be unwritten data cached thats not on disk yet.
Tar/rdiff-backup/etc reads through the pagecache and avoids this problem.

The dump people talk a bit about this themselves on

   http://dump.sourceforge.net/isdumpdeprecated.html

Note I dont want to dis dump, backing up live filesystems is just tricky
(depending on your consistency requirements :) and dump adds another
level to that.

Cheers,
  Rasmus
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