Re: is suspend broken?

2010-01-08 Thread Don Quixote de la Mancha
I'm running Fedora 11 on an x86_64 Core 2 Quad Xeon and a Supermicro
X7DWA-N motherboard.  I previously ran Fedora 10.

Suspend mostly works for me, but when I wake back up, I can't make the
network work.  I tried restarting networking, ifconfig down and then
up again, but nothing I've tried will make the network come back.

I've been assuming it's a kernel bug, but haven't gotten it together
to report it.  Does anyone else have this problem?  A workaround?

Don Quixote
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Re: is suspend broken?

2010-01-08 Thread Don Quixote de la Mancha
 I'm running Fedora 11 on an x86_64 Core 2 Quad Xeon and a Supermicro
 X7DWA-N motherboard.  I previously ran Fedora 10.

 Suspend mostly works for me, but when I wake back up, I can't make the
 network work.

I should mention that with the amount of RAM installed in my machine -
16 GB - suspend isn't really all that useful because of the amount of
time it takes to write the contents of memory to disk when suspending,
and to read it back in when waking up.  It takes just about as long as
it would to just do a shutdown and reboot.

The one situation I'd want to use shutdown instead is if I had a bunch
of windows open that I don't want to lose, and I need to leave the
machine for such a long time that I don't want to use all the
electricity.

Don Quixote
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Re: Which model raid adapter controll card is good for work with Fedora 12 ?

2010-01-06 Thread Don Quixote de la Mancha
I've had great success with am AMCC 3ware 9690SA on Fedora 10 and 11.
I haven't tried 12 yet.  I have a four-disk RAID 5.

http://www.3ware.com/

The 9690 can use either SATA or SAS drives depending on the cabling
you get.  It is an 8-lane PCI express card.

You definitely would want to invest in the Battery Backup Unit (BBU),
otherwise write caching is disabled, which makes certain RAID levels
very slow.

The BBU will maintain the write cache in the memory of the 9690 in the
event of a power failure, until power can be restored.  When write
caching is enabled, I find write performance to be very good.

There is also the 9650 which is SATA only, and I expect less expensive
than the SAS-capable 9690.

AMCC sold its 3ware RAID division to LSI earlier this year.  I haven't
really been following the developments since then, so I don't know
what newer models might be available.

To be completely fair and honest, I should cop to the fact that I used
to be an AMCC 3ware employee: I maintained the Mac OS X driver for
this card.  But I wouldn't dream of recommending it if I didn't
consider it completely reliable.  I have all of my own precious data
on its RAID 5; I finally set up a home RAID after losing the third
hard drive of my career.

Hope That Helps,

Don Quixote
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Re: Kernel boot problems or is my hard drive failing ?

2010-01-05 Thread Don Quixote de la Mancha
 Is anyone else experiencing a problem booting ?   Does this sound like a
 kernel problem or is my hard drive failing ?

From the error message, possibly there is a problem with your SATA
controller, or with your SATA cables.

SATA cables are pretty cheap.  Get some new ones and replace them all.

If that doesn't fix your problem, while SATA controllers aren't as
cheap as cables, they are at least affordable.  Buy a new SATA
controller, install it and attach your drive to it.  If your old SATA
controller is removable (ie not integrated with the motherboard), then
also remove it.

And what the other guy said - check your drive health with S.M.A.R.T.

Also, all the drive manufacturers offer free downloads of drive
testing utilities.  These are image files that generate boot floppies
or CD-ROMs.  Download the utility for your drive, make the boot disk,
boot off it, and run the non-destructive tests.

This can be valuable because vendors often add proprietary test code,
that only their own diagnostic tools know how to run.  There is a
possibility that this will detect a drive failure that S.M.A.R.T. may
not yet know about.

But First...

BACK UP ALL YOUR DATA!  RIGHT NOW!

There is a clock ticking, you see.  Can you hear it?  Tick, Tick, Tick.

Don Quixote
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Re: firefox disk IO

2010-01-04 Thread Don Quixote de la Mancha
I found that the Vacuum was much more effective if I did Tools -
Clear Recent History first.

Don Quixote
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Re: Email Hosting Recommendations?

2010-01-02 Thread Don Quixote de la Mancha
On Sat, Jan 2, 2010 at 1:06 PM, Kevin Kempter
kev...@consistentstate.com wrote:
 I'm looking for a good email hosting solution for 5-10 users. Were mostly
 Linux Desktop users with a few Mac's.

With that small number of users, you'd fit in the free version of
Google Domains.  You can either read your mail online with a UI that
looks just like GMail, or configure it to use POP or IMAP.

I use Google Domains, and am very happy with it.

It includes spam filtering that works pretty well.

Basically what you do when you sign up is prove to Google that you own
the domain by placing a file they specify on your web server, or else
adding a DNS record if you don't have a web server.  Then you
configure each of your user accounts, and set up some MX records that
point to Google's mail servers.

Don Quixote.
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Re: A great LAUGH for all Fedora users today

2009-12-31 Thread Don Quixote de la Mancha
On Wed, Dec 30, 2009 at 1:59 PM, Jim mickey...@sbcglobal.net wrote:
 Ask a Walmart employee what was the
 password to check them out, she said some customer had changed all the
 passwords and they couldn't into them.

This situation demands the Goatse Rescue Disk:

http://www.kolumbus.fi/xtmb/goatsefloppy/

That particular page is Safe For Work.  I can't speak for any of the
other pages on the site.

Extra Credit to whoever ports it to EFI.

Don Quixote
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Re: installing to external disk: esata now!

2009-12-31 Thread Don Quixote de la Mancha
On Thu, Dec 31, 2009 at 1:14 PM, Paul Johnson pauljoh...@gmail.com wrote:
 If one of you knows the similar recipe for esata, I would very much
 appreciate it.

You'll need a driver for the SATA controller that is built into your
PC.  SATA uses the ATA data stream over twisted pair serial cables.
The controllers that drive the SATA cables are made by many different
vendors; each of them needs its own specific driver.

If you're able to access the drive when you're booted up, try an lsmod
to see if its driver is loaded as a module.  It might be compiled
directly into the kernel though - if it is, you'll need to configure a
kernel build that makes a module for that driver.

If you intend to make an initrd that anyone can use, you'll need to
build modules from all of the available SATA drivers and include them.

eSATA is just a regular SATA cable with a different kind of physical
connector; there's no special software support needed for eSATA as
opposed to internal SATA.  My motherboard has a bunch of internal SATA
ports; I bought an SATA to eSATA adapter that just has two SATA cables
that attach to a PCI slot cover, which has two eSATA ports on it.
It's nothing more than a cabling adapter - there's no logic circuits
or software for it.

Don Quixote
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Re: The Counter-Fedora People At #fedora

2009-12-31 Thread Don Quixote de la Mancha
 They are absolute pricks.

The success of a distro, as with any organization, is affected to a
large extent by the way the in crowd treats the out crowd.

I ran Slackware for many years.  But I gave it up completely and moved
to Debian when I started hanging out in the Slackware newsgroup.  It
didn't take long for me to notice that the old-time Slackware guys
were absolute pricks to all the newbies.  Their disdain for anyone
who failed to devote adequate time to Reading The Fine Manual was not
at all subtle.

I later switched from Debian to Fedora largely because of a general
atmosphere of self-righteousness that pervades the Debian community.

Don Quixote
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Re: Partitioning FC11 ??

2009-07-20 Thread Don Quixote de la Mancha
A kernel developer, I think from Red Hat, said on a list that lvm is
2% slower than a physical partition.

Considering the obsession some folks have with performance, that seems
like an awful lot to give up for some flexibility which really may not
be at all helpful to some users.

The reason for the overhead is basically that when you send the
command over the wire to the actual disk, you have to give it an
absolute Logical Block Address - relative to the beginning of the
whole hard drive.  Hard disk drives don't know from partitions or
logical volumes.

To convert a partition offset into a disk offset, you just add the
starting sector of the disk.  To get that starting sector, you have to
look it up in a data structure that's maintained by the disk driver.

I don't know how LVM is implemented, but I imagine there are some
extra layers of indirection that enable that flexibility.  The data
structures involved will be more complex, as will be the code.

They will also be more likely to be buggy as well.

I've been setting up a bunch of partitions to run virtual machines on,
for cross-platform development.  While it's a PITA to keep
repartitioning my RAID 5, I figure the extra effort is worth it for
that consistently 2% faster disk I/O.

Don Quixote
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Re: Success - finally

2009-07-20 Thread Don Quixote de la Mancha
On Mon, Jul 20, 2009 at 8:20 AM, Markus Kesaromousremotes...@live.com wrote:
 I to would like to know how you optimized the kernel to run better (i.e. less 
 cpu utilisation).
 I am on an older machine as well, and currently running F11. Everything is so 
 sluggish now.

I haven't actually tried it myself, but I would suggest also
optimizing glibc, the X library, and the X server.

Basically what you want to do is optimize the most-frequently used
code.  There are hundreds if not thousands of code modules on a modern
Linux system, but just a few of them are used really frequently.

You'd want to be careful replacing your glibc though - one slip and
you'll wedge your system.

Don Quixote
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Yum: Cannot retrieve repository metadata for epel

2009-07-19 Thread Don Quixote de la Mancha
Immediately after upgrading from Fedora 10 to 11, I did a yum
update.  It downloaded about 120 packages, then gave me an error
message (which I'm afraid I didn't save).  Now when I try a yum
update I get:

Error: Cannot retrieve repository metadata (repomd.xml) for
repository: epel. Please verify its path and try again

In researching this I found some advice about switching the comments
between the baseurl and mirrorlist lines in
/etc/yum.repos.d/epel.repo, but when I do that I get:

http://download.fedora.redhat.com/pub/epel/6/x86_64/repodata/repomd.xml:
[Errno 14] HTTP Error 404: Not Found

and indeed when I look at:

http://download.fedora.redhat.com/pub/epel/

there directories named 4 and 5 but not 6.

Possibly I could get it to work by replacing the 6 in the URL above
with a 5, but I thought I should check first lest I screw my system up
by doing so.

Here is the first item in my epel.repo:

[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
baseurl=http://download.fedora.redhat.com/pub/epel/6/$basearch
#mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=epel-6arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL

Thanks,

Don Quixote
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Re: Yum: Cannot retrieve repository metadata for epel

2009-07-19 Thread Don Quixote de la Mancha
On Sun, Jul 19, 2009 at 2:09 PM, Kevin Fenzike...@scrye.com wrote:
 You may want to look at what installed or modified that repo file
 and/or package, because it's been modified from the real epel-release
 version.

I had been running F10 for a few months, then ran the preupgrade GUI,
rebooted and allowed F11 to install, rebooted again then did yum
update.

F10 never complained about anything like this, so I expect the problem
file got installed by preupgrade.  Other than that I don't have a
clue.

Don Quixote
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