Re: [gentoo-user] Raid and Gentoo

[Barny M]

Rafael Fernández López wrote:

 I've *NO IDEA* of how should I configure GRUB to detect my RAID. If you
 can help me I'd be very happy !!

Hi Rafael,

hope this will help:

http://gentoo-wiki.com/Special:Search?search=Raidgo=Go

If you are gonna using LVM, also http://www.gentoo.org/doc/en/lvm2.xml


~ Barny


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Re: [gentoo-user] LVM2 Problems

[Barny M]

Boyd Stephen Smith Jr. wrote:
 Then why do we see zoom here?

Sorry zoom is actually cont. For some reasons I good the word zoom
in here :-(


 Also, be /very/ careful with upgrading LVM / device-mapper. 

Sure ;-)

Back to my last question. Any thoughts how to get this fixed without
remote hand (liveCD) only console ?

Thanks

~Barny

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Re: [gentoo-user] LVM2 Problems

[Barny M]

Richard Fish wrote:
 On 5/9/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
 
 vgchange -a y
   device-mapper: deps ioctl failed: Invalid argument
   _deps: task run failed for (254:0)
   Failed to add device (254:0) to dtree
 
 
 My guess is a conflict between the device-mapper version and your
 kernel.  2.6.7 is quite ancient, and looking through
 /usr/share/doc/device-mapper-1.02.05/WHATS_NEW.gz, there were a lot of
 changes to how the device nodes are created in the last couple of
 years.  Possibly one of those changes broke backwards compatibility.
 
 -Richard
 

I forgot one important bit here to mention, at least to me ;-) The
server is miles away from my office, all I got is console access..

The other (older) kernel will not boot up properly either. Firering up
lvm and typing help, show various commands, which I am not familar with.

Does anyone see any option to get the fs back up just using console and
no remote hands ?

Thanks.

~Barny
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[gentoo-user] LVM2 problems

[Barny M]

Hi,

I recently synced my Gentoo (2.6.7-gentoo-r13) and after emerging
updated ebuilds, sure lvm2 was one of them and a reboot I lost my
mounted fs.

Fortunately I do not have / (root) under LVM however all efforts so far
haven't brought my fs back:

# /etc/fstab: static file system information.
# $Header: /home/cvsroot/gentoo-src/rc-scripts/etc/fstab,v 1.14
2003/10/13 20:03:38 azarah Exp $
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed; notail increases performance of ReiserFS (at the expense of
storage
# efficiency).  It's safe to drop the noatime options if you want and to
# switch between notail and tail freely.

# fs  mountpointtype  opts
dump/pass

# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/hda1   /boot   ext2noauto,noatime
0 0
/dev/hda2   /   reiserfsnoatime
0 0
/dev/cont/swap  noneswapsw
0 0
/dev/cont/usr   /usrreiserfsnoatime
0 0
/dev/cont/var   /varreiserfsnoatime
0 0
/dev/cont/home  /home   reiserfsnoatime
0 0
/dev/cont/tmp   /tmpreiserfsnoatime
0 0
/dev/cont/var-log   /var/logreiserfsnoatime
0 0
/dev/cont/var-www   /var/wwwreiserfsnoatime
0 0
/dev/cdroms/cdrom0  /mnt/cdrom  iso9660 noauto,ro
0 0
#/dev/fd0   /mnt/floppy autonoauto
0 0

# NOTE: The next line is critical for boot!
none/proc   procdefaults
0 0

# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
#  use almost no memory if not populated with files)
# Adding the following line to /etc/fstab should take care of this:

none/dev/shmtmpfs   defaults
0 0


df -h
FilesystemSize  Used Avail Use% Mounted on
/dev/hda2 479M   80M  399M  17% /
none


pvscan
  PV /dev/hda3   VG cont   lvm2 [111.23 GB / 6.74 GB free]
  Total: 1 [111.23 GB] / in use: 1 [111.23 GB] / in no VG: 0 [0   ]

vgscan
  Reading all physical volumes.  This may take a while...
  Found volume group cont using metadata type lvm2

vgchange -a y
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:0)
  Failed to add device (254:0) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:1)
  Failed to add device (254:1) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:2)
  Failed to add device (254:2) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:3)
  Failed to add device (254:3) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:4)
  Failed to add device (254:4) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:5)
  Failed to add device (254:5) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:6)
  Failed to add device (254:6) to dtree
  device-mapper: deps ioctl failed: Invalid argument
  _deps: task run failed for (254:7)
  Failed to add device (254:7) to dtree
  8 logical volume(s) in volume group zoom now active
  248M 0  248M   0% /dev/shm

Any further suggestions how to troubleshoot or fix the issue ?

~Barny
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