lvm2 problem
in [Slackware]
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From: Hans de Bruin on 1 Feb 2008 16:44 I seem to have some troule creating pv's: bash-3.1# fdisk /dev/sda The number of cylinders for this disk is set to 4863. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): p Disk /dev/sda: 40.0 GB, 40000536576 bytes 255 heads, 63 sectors/track, 4863 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 12 96358+ 83 Linux /dev/sda2 13 4861 38949592+ 8e Linux LVM Command (m for help): q bash-3.1# pvcreate -vvv /dev/sda2 .... /dev/vcs6: Not a block device /dev/vcs7: Not a block device /dev/vcsa: Not a block device /dev/vcsa6: Not a block device /dev/vcsa7: Not a block device /dev/zero: Not a block device Wiping internal VG cache Locking /var/lock/lvm/P_orphans WB /dev/sda2: Skipping (sysfs) Device /dev/sda2 not found (or ignored by filtering). Unlocking /var/lock/lvm/P_orphans bash-3.1# pvscan -vvv .... /dev/vcsa6: Not a block device /dev/vcsa7: Not a block device /dev/zero: Not a block device Wiping internal VG cache Walking through all physical volumes /dev/loop0: Skipping (sysfs) /dev/sda: Skipping (sysfs) /dev/mmcblk0: Skipping (sysfs) /dev/loop1: Skipping (sysfs) /dev/sda1: Skipping (sysfs) /dev/loop2: Skipping (sysfs) /dev/sda2: Skipping (sysfs) /dev/loop3: Skipping (sysfs) /dev/loop4: Skipping (sysfs) /dev/loop5: Skipping (sysfs) /dev/loop6: Skipping (sysfs) /dev/loop7: Skipping (sysfs) No matching physical volumes found bash-3.1# grep filter /etc/lvm/lvm.conf # A filter that tells LVM2 to only use a restricted set of devices. # The filter consists of an array of regular expressions. These # Don't have more than one filter line active at once: only one gets used. filter = [ "a/.*/" ] # filter = [ "r|/dev/cdrom|" ] # filter = [ "a/loop/", "r/.*/" ] # filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ] # filter = [ "a|^/dev/hda8$|", "r/.*/" ] # The results of the filtering are cached on disk to avoid bash-3.1# uname -a Linux psion 2.6.24 #56 PREEMPT Tue Jan 29 20:58:40 CET 2008 i686 Intel(R) Core(TM) Solo CPU U1400 @ 1.20GHz GenuineIntel GNU/Linux bash-3.1# vgscan --version LVM version: 2.02.09 (2006-08-17) Library version: 1.02.19 (2007-04-27) Driver version: 4.12.0 bash-3.1# cat /etc/lvm/.cache # This file is automatically maintained by lvm. persistent_filter_cache { } Why this 'Skipping (sysfs)' ? -- Hans
From: Grant on 31 Jan 2008 17:17 On Thu, 31 Jan 2008 22:44:16 +0100, Hans de Bruin <Hans(a)nl.invalid> wrote: >I seem to have some troule creating pv's: .... >bash-3.1# uname -a >Linux psion 2.6.24 #56 PREEMPT Tue Jan 29 20:58:40 CET 2008 i686 .... > >Why this 'Skipping (sysfs)' ? Dunno, suggest try 2.6.23.14 since 2.6.24 broke Dell's sysfs, maybe broke LVM as well? If it work for 2.6.23.14 please report 2.6.24 regression to LKML (kernel.org). Grant. -- http://bugsplatter.mine.nu/
From: Mark South on 1 Feb 2008 02:41 On Thu, 31 Jan 2008 22:44:16 +0100, Hans de Bruin wrote: > I seem to have some trouble creating pv's: PV's are irreproducible and irreplaceable, that is why there is only one Slackware. :-)
From: Hans de Bruin on 1 Feb 2008 14:26 Grant wrote: > On Thu, 31 Jan 2008 22:44:16 +0100, Hans de Bruin <Hans(a)nl.invalid> wrote: > >> I seem to have some troule creating pv's: > ... >> bash-3.1# uname -a >> Linux psion 2.6.24 #56 PREEMPT Tue Jan 29 20:58:40 CET 2008 i686 > ... >> Why this 'Skipping (sysfs)' ? > > Dunno, suggest try 2.6.23.14 since 2.6.24 broke Dell's sysfs, maybe broke > LVM as well? If it work for 2.6.23.14 please report 2.6.24 regression to > LKML (kernel.org). > Well, I upgraded my via c7 'server' to 6.24 and it still is lvm2 capable. Now it gets somewhat interesting: root(a)orion:/# pvscan OK root(a)orion:/# cd /nfsroot root(a)orion:/# chroot . root(a)orion:/# mount -t proc proc /proc root(a)orion:/# mount -t sys sys /sys root(a)orion:/# pvscan Not ok, lots of : Skipping (sysfs) Now my laptop is running from /nfsroot. Why, well to delete the preinstalled xp partition and create an lvm2 partition on it. The nfsroot was already available. I use it to test new kernels on a backup c7 board. The kernel config is, except for dhcp & / on nfs, the same as on my server. I just added some intel chipset drivers. The Dell laptop also had a sort of maintenance fat partiton. It now containce a copy of /nfsroot so the laptop can boot from disk. This install also suffers from the 'Skipping (sysfs)' mishap The nfsroot on the server is just a copy of / -- Hans
From: Hans de Bruin on 1 Feb 2008 14:56 Hans de Bruin wrote: .... c7: root(a)orion:/# ls -l /sys/block/ total 0 drwxr-xr-x 5 root root 0 2008-02-01 20:49 dm-0 drwxr-xr-x 5 root root 0 2008-02-01 20:49 dm-1 drwxr-xr-x 5 root root 0 2008-02-01 20:49 dm-2 drwxr-xr-x 5 root root 0 2008-02-01 20:49 dm-3 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop0 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop1 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop2 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop3 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop4 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop5 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop6 drwxr-xr-x 5 root root 0 2008-02-01 20:49 loop7 drwxr-xr-x 18 root root 0 2008-02-01 20:49 sda drwxr-xr-x 6 root root 0 2008-02-01 20:49 sdb drwxr-xr-x 6 root root 0 2008-02-01 20:49 sr0 root(a)orion:/# cd /nfsroot root(a)orion:/nfsroot# chroot . root(a)orion:/# mount -t sysfs sysfs /sys root(a)orion:/# ls -l /sys/block/ total 0 drwxr-xr-x 5 root root 0 2008-02-01 20:53 dm-0 drwxr-xr-x 5 root root 0 2008-02-01 20:53 dm-1 drwxr-xr-x 5 root root 0 2008-02-01 20:53 dm-2 drwxr-xr-x 5 root root 0 2008-02-01 20:53 dm-3 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop0 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop1 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop2 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop3 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop4 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop5 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop6 drwxr-xr-x 5 root root 0 2008-02-01 20:53 loop7 drwxr-xr-x 18 root root 0 2008-02-01 20:53 sda drwxr-xr-x 6 root root 0 2008-02-01 20:53 sdb drwxr-xr-x 6 root root 0 2008-02-01 20:53 sr0 root(a)orion:/# dell laptop: bash-3.1# ls -l /sys/block/ total 0 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop0 -> .../devices/virtual/block/loop0 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop1 -> .../devices/virtual/block/loop1 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop2 -> .../devices/virtual/block/loop2 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop3 -> .../devices/virtual/block/loop3 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop4 -> .../devices/virtual/block/loop4 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop5 -> .../devices/virtual/block/loop5 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop6 -> .../devices/virtual/block/loop6 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 loop7 -> .../devices/virtual/block/loop7 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 mmcblk0 -> .../devices/pci0000:00/0000:00:1e.0/0000:02:01.2/mmc_host/mmc0/mmc0:0002/block/mmcblk0 lrwxrwxrwx 1 root root 0 2008-02-01 20:48 sda -> .../devices/pci0000:00/0000:00:1f.1/host0/target0:0:0/0:0:0:0/block/sda bash-3.1# -- Hans
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