Re: [linux-lvm] volume group not found????

[Magnus Runesson <mr-lvm@linuxalert.org>]

It looks like you have hit the bug 193 in bugzilla.

/Magnus

Alexander Bruns wrote:

> Hi,
> 
> I am new to this group an new to lvm. I reinstalled my personal server
> with redhat 7.1 an wanted to get lvm run over my three large discs.
> 
> I had the following things running for a short while:
> 
> - RedHat 7.1 with all updates.
> - self-compiled Kernel 2.4.6 with patched lvm 0.9.1_beta7
> 
> On my first HD Igave the rest space to hda7 with fdisk and set the
> partition to "8e" lvm.
> 
> The i followed the howto at sistina at:
> file://sistina.com/lvm/doc/lvm_howto/Common_tasks.html
> 
> 
> - I initalized the Partition:
>   pvcreate /dev/hda7
> 
> - I added the partition to a new volume group:
>   vgcreate lvm_volume_01 /dev(hda7
> 
> - then o activated the volume group:
>   vgchange -a y lvm_volume_01
> 
> - The I put a logical volume on the volume group:
>   lvcrate -L50G -nlvm_lv_01 lvm_volume_01
> 
> This logical Volume was then at /dev/lvm_volume_01/lvm_lv_01 and o
> formated it woith reiserfs an mounted it! Evething runs fine.
> 
> I copied the old contents of hdb5 and hdc5 of the smaller HDs to this
> logical volume. on hda7.
> 
> 
> 
> Then I added deleted the partition on hdc5, made a new one, set it to
> 8e an added it to the volume group as explained at:
> file://sistina.com/lvm/doc/lvm_howto/Common_tasks.html
> 
> 
> pvcreate /dev/hdc5
> vgextend lvm_volume_01
> lvextend -L30G /dev/lvm_volume_01/lvm_lv_01
> resize_reiserfs -f /dev/lvm_volume_01/lvm_lv_01
> 
> That was all fine and i could mount the lvm_lv_01 without any
> problems.
> 
> 
> The same I then wanted to manage with the thirt HD at hdb5, but then
> something went wrong??
> 
> Resize reiserfs did something but when i wanted to mount the LV it did
> not work. reiserfs-checks did not found a problem but the mount-binary
> told my something about a superblock......
> 
> 
> Abter a reboot I now have the following:
> 
> [root@holodeck lvmconf]# pvdisplay /dev/hda7
> pvdisplay
> --- Physical volume ---
> PV Name               /dev/hda7
> VG Name               lvm_volume_01
> PV Size               48.54 GB / NOT usable 1.06 MB [LVM: 169 KB]
> PV#                   1
> PV Status             available
> Allocatable           yes (but full)
> Cur LV                1
> PE Size (KByte)       4096
> Total PE              12425
> Free PE               0
> Allocated PE          12425
> PV UUID               cFFBJX-aqxr-P7kU-71OY-pgpX-rvtA-XxVpoc
> 
> But for /dev/hdb5 and /ev/hdc5 it does not show the same. NOTHING!!
> 
> 
> 
> And becouse I did not write anything to the volumegroup or logical
> volume after the added two partition al my data must still be on hda7.
> But how do I manage to get on it?
> 
> The following commands say the folling:
> #####################################################
> 
> 
> 
> [root@holodeck lvmconf]# vgscan
> vgscan
> vgscan -- reading all physical volumes (this may take a while...)
> vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> vgscan -- WARNING: This program does not do a VGDA backup of your
> volume group
> 
> lvm_volume_01 is not found
> 
> [root@holodeck lvmconf]# vgchange -a y lvm_volume_01
> vgchange
> vgchange -- volume group "lvm_volume_01" does not exist
> 
> 
> 
> [root@holodeck lvmconf]# ls -al /dev/lvm*
> crw-r-----    1 root     root     109,   0 Jul 20 16:39 /dev/lvm
> 
> /dev/lvm_volume_01:
> insgesamt 88
> dr-xr-xr-x    2 root     root         4096 Jul 20 23:06 .
> drwxr-xr-x   15 root     root        81920 Jul 28 13:12 ..
> crw-r-----    1 root     disk     109,   0 Jul 20 23:02 group
> brw-rw----    1 root     disk      58,   0 Jul 20 23:06 lvm_lv_01
> 
> 
> [root@holodeck lvmconf]# ls -al /dev/lvm_volume_01/
> insgesamt 88
> dr-xr-xr-x    2 root     root         4096 Jul 20 23:06 .
> drwxr-xr-x   15 root     root        81920 Jul 28 13:12 ..
> crw-r-----    1 root     disk     109,   0 Jul 20 23:02 group
> brw-rw----    1 root     disk      58,   0 Jul 20 23:06 lvm_lv_01
> 
> 
> 
> 
> SHIT!
> 
> How do I get on my Data at lvm_volume_01 bzw lvm_lv_01.
> lvm_lv_01 was formated with reiserfs
> 
> 
> 
> Greetings from Germany from Alex
> 
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> 
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>