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Re: [linux-lvm] lvm 1.0.3 kernel panic



Here is additionally an output of:
vgcfgrestore -f /mnt/sysimage/etc/lvmconf/vg01.conf -n vg01 -ll

--- Volume group ---
VG Name               vg01
VG Access             read/write
VG Status             NOT available/resizable
VG #                  0
MAX LV                256
Cur LV                3
Open LV               0
MAX LV Size           255.99 GB
Max PV                256
Cur PV                4
Act PV                4
VG Size               501.92 GB
PE Size               4 MB
Total PE              128491
Alloc PE / Size       128491 / 501.92 GB
Free  PE / Size       0 / 0
VG UUID               vsZRhX-6bfh-jqhD-Cn1Z-0h9E-tiE6-isU7hJ

--- Logical volume ---
LV Name                /dev/vg01/lv_root
VG Name                vg01
LV Write Access        read/write
LV Status              available
LV #                   1
# open                 0
LV Size                33.66 GB
Current LE             8617
Allocated LE           8617
Allocation             next free
Read ahead sectors     10000
Block device           58:0

--- Logical volume ---
LV Name                /dev/vg01/lv_data2
VG Name                vg01
LV Write Access        read/write
LV Status              available
LV #                   2
# open                 0
LV Size                235.38 GB
Current LE             60257
Allocated LE           60257
Allocation             next free
Read ahead sectors     10000
Block device           58:1

--- Logical volume ---
LV Name                /dev/vg01/lv_data
VG Name                vg01
LV Write Access        read/write
LV Status              available
LV #                   3
# open                 0
LV Size                232.88 GB
Current LE             59617
Allocated LE           59617
Allocation             next free
Read ahead sectors     10000
Block device           58:2


--- Physical volume ---
PV Name /dev/hda3
VG Name vg01
PV Size 33.67 GB [70605675 secs] / NOT usable 4.19 MB [LVM: 161 KB]
PV# 1
PV Status available
Allocatable yes (but full)
Cur LV 1
PE Size (KByte) 4096
Total PE 8617
Free PE 0
Allocated PE 8617
PV UUID ouWY4f-vGwm-Rq3p-eX3M-tDaI-BQ3i-D7gT4f


--- Physical volume ---
PV Name /dev/hda1
VG Name vg01
PV Size 2.50 GB [5253192 secs] / NOT usable 4.19 MB [LVM: 130 KB]
PV# 2
PV Status available
Allocatable yes (but full)
Cur LV 1
PE Size (KByte) 4096
Total PE 640
Free PE 0
Allocated PE 640
PV UUID 6WZGDT-Sev3-jYXj-VquB-FQj2-Wbeq-cdgNLK


--- Physical volume ---
PV Name /dev/hdb
VG Name vg01
PV Size 232.89 GB [488397168 secs] / NOT usable 4.38 MB [LVM: 360 KB]
PV# 3
PV Status available
Allocatable yes (but full)
Cur LV 1
PE Size (KByte) 4096
Total PE 59617
Free PE 0
Allocated PE 59617
PV UUID nV1chY-OlRj-tLrb-cdSM-D3IN-Mvwb-U2nxfE


--- Physical volume ---
PV Name /dev/hdc
VG Name vg01
PV Size 232.89 GB [488397168 secs] / NOT usable 4.38 MB [LVM: 360 KB]
PV# 4
PV Status NOT available
Allocatable yes (but full)
Cur LV 1
PE Size (KByte) 4096
Total PE 59617
Free PE 0
Allocated PE 59617
PV UUID XMs7mJ-PdbD-voTc-IUY7-sLiu-Gg1P-99nwc5


I have checked the output of some older config files like vg01.conf.[1-6].old and have found one without the additional hard disk. Hence no data is stored on that disk yet, I wouldn't mind to overwrite the configuration, but is it save doing it? I definitely worried about data loss then.

Thanks,
Stephanus


Stephanus Fengler wrote:


Hi experts,

I added a new hard disk to my system and created it entirely as a new logical volume. Mounting unmounting everything worked until reboot. It stops now with kerel panic and lines like:

(null) -- ERROR 2 writing volume group backup file /etc/lvmtab.d/vg01.tmp
      vg_cfgbackup.c [line271]

vgscan -- ERROR: unable to do a backup of volume group vg01
vgscan -- ERROR: lvm_tab_vg_remove(): unlink" removing volume group "vg01" from "/etc/lvmtab"


...

Activating volume groups
   vgchange - no volume groups found

I understand the kernel panic if lvm is unable to find the volume group vg01 because that's my root system. But I don't get the first error.
I rebooted with my Redhat Installation disk: linux rescue
and can activate the volume group by hand and mount the file systems. So it looks to me everything is consistent in the filesystem.


So since I am pretty new to lvm, which output do you additional need to help me?

Thanks in advance,
Stephanus

lvmdiskscan:
lvmdiskscan -- reading all disks / partitions (this may take a while...)
lvmdiskscan -- /dev/hdc [ 232.89 GB] USED LVM whole disk
lvmdiskscan -- /dev/hda1 [ 2.50 GB] Primary LVM partition [0x8E]
lvmdiskscan -- /dev/hda2 [ 101.97 MB] Primary LINUX native partition [0x83]
lvmdiskscan -- /dev/hda3 [ 33.67 GB] Primary LVM partition [0x8E]
lvmdiskscan -- /dev/hda4 [ 1019.75 MB] Primary Windows98 extended partition [0x0F]
lvmdiskscan -- /dev/hda5 [ 1019.72 MB] Extended LINUX swap partition [0x82]
lvmdiskscan -- /dev/hdb [ 232.89 GB] USED LVM whole disk
lvmdiskscan -- /dev/loop0 [ 59.08 MB] free loop device
lvmdiskscan -- 3 disks
lvmdiskscan -- 2 whole disks
lvmdiskscan -- 1 loop device
lvmdiskscan -- 0 multiple devices
lvmdiskscan -- 0 network block devices
lvmdiskscan -- 5 partitions
lvmdiskscan -- 2 LVM physical volume partitions


pvscan:
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- inactive PV "/dev/hdc"  of VG "vg01" [232.88 GB / 0 free]
pvscan -- inactive PV "/dev/hda1" of VG "vg01" [2.50 GB / 0 free]
pvscan -- inactive PV "/dev/hda3" of VG "vg01" [33.66 GB / 0 free]
pvscan -- inactive PV "/dev/hdb"  of VG "vg01" [232.88 GB / 0 free]
pvscan -- total: 4 [501.94 GB] / in use: 4 [501.94 GB] / in no VG: 0 [0]
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