How do I manually detect my storage in rescue mode?

Solution Verified - Updated

Environment

  • Red Hat Enterprise Linux 4, 5, 6, 7, 8, 9

Issue

How do I manually detect my storage in rescue mode?

Resolution

1. Obtain the rescue media.

2. Enter linux rescue mpath at the boot prompt

boot: linux rescue mpath

1. Use the /proc/partition file to see which devices the kernel is aware of

# cat /proc/partitions

2. Check to see if multipathing has been utilized for any of your devices

# multipath -ll

3. Enable your LVM devices

3a. If you are not booting from mutlipathing use the following command

# lvm vgchange -ay

3b. If you are booting from multipathing use the following command

# lvm vgchange -ay --config 'device{ filter = [ "a|/dev/mapper/mpath.*|", "r|.*|" ] }'

4. Create a sysimage directory

# mkdir /mnt/sysimage

5. Mount your root directory (/) under /mnt/sysimage

# mount /dev/mapper/VolGroup00-lv_root /mnt/sysimage

6. Bind mount sys, proc, and dev to /mnt/sysimage

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

7. View your fstab file

# cat /mnt/sysimage/etc/fstab

8. Mount everything in the fstab under /mnt/sysimage

# mount /dev/device1 /mnt/sysimage/mountpoint1
# mount /dev/device2 /mnt/sysimage/mountpoint2
# mount /dev/device3 /mnt/sysimage/mountpoint3

9. chroot to the new environment

# chroot /mnt/sysimage

Root Cause

soemtimes the 'continue' option doesnt work

SBR
Product(s)
Components
Category

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