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Linux VM unable to boot
I was trying to add a disk in my Redhat 5.4 x64, I think may have deleted a partition in the LogVol00 (logical volume)
When I reboot I get the below have also attached a screenshot.
I have tried rescue mode I get the following 'You don't have any linux partitions'
'Press return to get a shell'
What can I do to fix this issue?
Couldn't find device with uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
Found volume group "VolGroup00" using metadata type lvm2
Refusing activation of partial LV LogVol00. Use ---partial to overide
0 logical volume (s) in volume group "VolGroup00" now active
mount: could not find filesystem 'dev/root'
Thanks
RED-HAT-error.jpg
When I reboot I get the below have also attached a screenshot.
I have tried rescue mode I get the following 'You don't have any linux partitions'
'Press return to get a shell'
What can I do to fix this issue?
Couldn't find device with uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
Found volume group "VolGroup00" using metadata type lvm2
Refusing activation of partial LV LogVol00. Use ---partial to overide
0 logical volume (s) in volume group "VolGroup00" now active
mount: could not find filesystem 'dev/root'
Thanks
RED-HAT-error.jpg
ASKER CERTIFIED SOLUTION
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ASKER
I did take a snapsot before I followed the instructions you sent, however I was unable to get the RHEL in a workable state and have decide to build a new VM.
Thanks for your help and assistance.
Thanks for your help and assistance.
ASKER
Unfortunately there is a lot of bespoke configuration that needs to be carried out and I don't have the details.
I have had to go back to getting the original VM working.
For the uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
sda2 physical extent 0-24
sda4 physical extent 625-1517
?? 1518 -2516
How do I find out what the PV name is?
I have had to go back to getting the original VM working.
For the uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
sda2 physical extent 0-24
sda4 physical extent 625-1517
?? 1518 -2516
How do I find out what the PV name is?
boot into the "super grub2 boot disk" iso which is able to detect all linux partitions and kernel and boot into whatever available installation present on the host. if it successfully boots your system, you can run grub-intall from the command line which should reinstall the boot loader and associated config files properly
if the above is unsuccessfull, you can boot into whatever live distribution you are familiar with and run gparted to see if your partition is still there and which uid it has... and post relevant information from there if you can't figure it out
if the above is unsuccessfull, you can boot into whatever live distribution you are familiar with and run gparted to see if your partition is still there and which uid it has... and post relevant information from there if you can't figure it out
ASKER
I had no joy with the above, so now I am trying to get the data off by adding the disks with in the problem Volume Group (contains the root partition) to another Red Hat VM
I get the below, I know there is a duplicate and I need to rename the Volume Group
Not entirely sure what is the exact command to add the unknown PV unknown device to the VolGroup00 (think its sdh1)
WARNING: Duplicate VG name VolGroup00: Existing wDErO4-Q3JA-Ozu3-OiqW-kCyR
Couldn't find device with uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
Couldn't find device with uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
PV /dev/sdg2 VG VolGroup00 lvm2 [19.53 GB / 0 free]
PV /dev/sdg4 VG VolGroup00 lvm2 [27.91 GB / 0 free]
PV unknown device VG VolGroup00 lvm2 [19.97 GB / 0 free]
PV /dev/sdc1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sdd1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sde1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sdf1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sda2 VG VolGroup00 lvm2 [29.78 GB / 3.78 GB free]
PV /dev/sdb1 VG VolGroup00 lvm2 [49.97 GB / 49.97 GB free]
Total: 9 [547.14 GB] / in use: 9 [547.14 GB] / in no VG: 0 [0 ]
I get the below, I know there is a duplicate and I need to rename the Volume Group
Not entirely sure what is the exact command to add the unknown PV unknown device to the VolGroup00 (think its sdh1)
WARNING: Duplicate VG name VolGroup00: Existing wDErO4-Q3JA-Ozu3-OiqW-kCyR
Couldn't find device with uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
Couldn't find device with uuid 'kILYJc-36BL-MIbC-Ip1Z-zul
PV /dev/sdg2 VG VolGroup00 lvm2 [19.53 GB / 0 free]
PV /dev/sdg4 VG VolGroup00 lvm2 [27.91 GB / 0 free]
PV unknown device VG VolGroup00 lvm2 [19.97 GB / 0 free]
PV /dev/sdc1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sdd1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sde1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sdf1 VG VolGroup02 lvm2 [100.00 GB / 0 free]
PV /dev/sda2 VG VolGroup00 lvm2 [29.78 GB / 3.78 GB free]
PV /dev/sdb1 VG VolGroup00 lvm2 [49.97 GB / 49.97 GB free]
Total: 9 [547.14 GB] / in use: 9 [547.14 GB] / in no VG: 0 [0 ]
SOLUTION
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SOLUTION
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would you mind posting information regarding how you managed to do so ?
feel free to change the question's subject to something like "read from/restore a partial lvm volumegroup" and accept your own answer
best regards
feel free to change the question's subject to something like "read from/restore a partial lvm volumegroup" and accept your own answer
best regards
ASKER
The original Vol Group consisted of three PVs;
PV /dev/sdg2 VG VolGroup00 lvm2 [19.53 GB / 0 free]
PV /dev/sdg4 VG VolGroup00 lvm2 [27.91 GB / 0 free]
PV unknown device VG VolGroup00 lvm2 [19.97 GB / 0 free]
Even though I couldn't get the original vm working, I managed to add the corrupted Volume Group to another VM and move off the data I needed.
The data on the physical extent between 1518-2516 hasn't been recovered.
sda2 physical extent 0-24
sda4 physical extent 625-1517
?? 1518 -2516
PV /dev/sdg2 VG VolGroup00 lvm2 [19.53 GB / 0 free]
PV /dev/sdg4 VG VolGroup00 lvm2 [27.91 GB / 0 free]
PV unknown device VG VolGroup00 lvm2 [19.97 GB / 0 free]
Even though I couldn't get the original vm working, I managed to add the corrupted Volume Group to another VM and move off the data I needed.
The data on the physical extent between 1518-2516 hasn't been recovered.
sda2 physical extent 0-24
sda4 physical extent 625-1517
?? 1518 -2516
ASKER
Was unable to get the original VM working
Partition or volume metadata recovery is complex and generally requires a level of expertise beyond the conventional knowledge most system administrators have.
The linked document contains a step-by-step process for attempting to recover the metadata for the volume/partition.
If you are working on a production system, I would HIGHLY recommend you contact RedHat Technical Support for recovery steps.
If you have a level of comfort with the tools discussed in the article, you simply need to be aware that all of your data on the affected volume could be lost if you make a mistake, especially were you to enter the GUID incorrectly.