We must run the below steps in order to mount LVM in rescue mode. At Bobcares, with our Server Management Service, we can handle your issues.

Steps to Mount LVM in Rescue Mode

For a number of reasons, mounting LVM in rescue mode is essential. Its main purpose is to make data recovery easier in cases where a system cannot boot up because of errors or corruption. It also makes it possible to troubleshoot LVM config errors and fix systems. In rescue mode, LVM volumes can also be divided or resized to meet changing storage needs.

But we must use caution because doing the wrong thing can result in data loss, therefore we have to make backups of important data beforehand. Let’s look into two methods to mount LVM in rescue mode:

Method 1

1. Initially, boot the rescue media (like a CentOS or Ubuntu CDROM).

2. Scan for volume groups:

lvm vgscan -v

3. Enable all Volume Groups:

vgchange -a y "volume group name"

4. List Logical Volumes:

lvm lvs --all

5. Create a mount point:

mkdir /media/your-mount-point

6. Mount the logical volume:

mount /dev/volumegroup/logical-volume /media/your-mount-point

7. Access the mounted LVM volume:

cd /media/your-mount-point

If we encounter a “you must specify filesystem type” error, run a filesystem check:

fsck -f -y /dev/volumegroup/logical-volume

Then try mounting again.

Method 2

1. Start the system with the rescue CD.

2. Login as root (no password needed).

3.Mount the / partition:

mount /dev/sda1 /mnt

4. Bind mount directories:

mount -o bind /dev /mnt/dev
mount -o bind /proc /mnt/proc
mount -o bind /sys /mnt/sys

5. Change root:

chroot /mnt

6. Activate LVM:

mount -av

7. LVM partitions should now be available.

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Conclusion

To conclude, this article offers two methods from our Experts to mount an LVM in rescue mode.