Recover Mis-Configured or Broken LVM Configurations

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Recover Mis-Configured or Broken LVM Configurations

In this exercise, you will need to assess the cause of a broken LVM configuration and resolve it without losing the data in the volume. *This course is not approved or sponsored by Red Hat.*

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Lab Info

Level

Advanced

Last updated

Aug 16, 2025

Duration

1h 0m

Challenge

Resolve LVM configuration.
Check the mounts with lsbkl:
```
lsblk
```
Attempt to mount the volume:
```
mount /lvm_mount
```
View the archive metadata:
```
vgcfgrestore -l <VOLGROUP NAME>
```
Review the changes:

"Created before executing 'lvresize -L500M /dev/vg_1/lv_1'"

Restore prior to latest change:
```
vgcfgrestore -f /etc/lvm/archive/vg_1_00002-84057####.vg vg_1
```
Deactivate and reactive the volume:
```
lvchange -an /dev/<VOLGROUP>/<LOG>
```
```
lvchange -ay /dev/<VOLGROUP>/<LOG>
```
Challenge

Verify LVM volume contents.
The MD5s of each file in the volume are available in the /home/cloud_user/lvm_md5s.txt file. Validate that the md5sums haven't changed for the files in the /lvm_mount directory.
```
cat /home/cloud_user/lvm_md5s.txt
```
```
for i in $(ls /lvm_mount/); do md5sum /lvm_mount/$i; done
```

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