OCI: Unable To Mount Block Volume To Multiple Linux Instance
APPLIES TO:
Oracle Cloud Infrastructure
Linux x86-64
SYMPTOMS
Customer is getting an error while mounting a block volume restored from a backup
[root@xxxxxxxxxxx-7-8 ~]# mount /dev/u02_vg/lv01 /testu02 mount: /dev/mapper/u02_vg-lv01: can't read superblock [root@xxxxxxxxxxx-7-8 ~]# [root@xxxxxxxxxxxxx-7-8 ~]# mount /dev/sdd /testu02 mount: unknown filesystem type 'LVM2_member'
CHANGES
Customer is trying to attach and mount a block volume restored from a backup whereas the original volume is still attached to another instance.
CAUSE
If the LUN restored from a backup has an LVM group on it, they may end up with conflicting with volume group names. This is because the copy and restore process copies metadata as well.
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