I've upgraded from 20.04 to 22.04 and now I can't mount my RAID array. I believe it's hardware RAID, and I'm hopeful I didn't mess it up while restoring other things (after upgrade my system didn't boot, but I adjusted fstab and sorted that out). I'm pretty sure I previously setup RAID using fstab (mdadm wasn't installed).
Here's what I see in gparted:
With the following error message when I right-click and press Information on 0000p3:
Couldn't find valid filesystem superblock.
tune2fs 1.46.5 (30-Dec-2021)
tune2fs: No such file or directory while trying to open /dev/mapper/isw_cgbjhghfci_Volume_0000p3
Couldn't find valid filesystem superblock.
Couldn't find valid filesystem superblock.
dumpe2fs 1.46.5 (30-Dec-2021)
dumpe2fs: No such file or directory while trying to open /dev/mapper/isw_cgbjhghfci_Volume_0000p3
Unable to read the contents of this filesystem!
Because of this some operations may be unavailable.
The cause might be a missing software package.
The following list of software packages is required for ext4 filesystem support: e2fsprogs v1.41+.
Here's the output of sudo blkid
/dev/sda1: UUID="F864-25BE" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="8dfc5bb4-a8f8-4fc5-b3da-368fb1e1d11b"
/dev/sdb: TYPE="isw_raid_member"
/dev/loop19: TYPE="squashfs"
/dev/loop17: TYPE="squashfs"
/dev/loop8: TYPE="squashfs"
/dev/loop15: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop13: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop21: TYPE="squashfs"
/dev/loop11: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop0: TYPE="squashfs"
/dev/loop18: TYPE="squashfs"
/dev/loop9: TYPE="squashfs"
/dev/loop16: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"
/dev/loop14: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop22: TYPE="squashfs"
/dev/loop12: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop20: TYPE="squashfs"
/dev/loop10: TYPE="squashfs"
/dev/loop23: TYPE="squashfs"
/dev/mapper/isw_cgbjhghfci_Volume_0000: PTUUID="55e53925-2bb8-4c57-85f6-cd80abcf4107" PTTYPE="gpt"
/dev/sdc2: PARTLABEL="Microsoft reserved partition" PARTUUID="5f347fdf-5b49-426f-a8dc-3f4d1068d35c"
/dev/sdc3: PARTLABEL="LDM data partition" PARTUUID="e77c02fa-a29b-11e7-9835-d89ef302d60a"
/dev/sdc1: PARTLABEL="LDM metadata partition" PARTUUID="e77c02f6-a29b-11e7-9835-d89ef302d60a"
And here's what I tried putting in fstab:
/dev/mapper/isw_cgbjhghfci_Volume_00003 /raid ext4 defaults 0 2
With the result:
$ sudo mount /raid
mount: /raid: special device /dev/mapper/isw_cgbjhghfci_Volume_00003 does not exist.
In case relevant, here's more output:
$ df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 6.3G 3.1M 6.3G 1% /run
/dev/sda2 234G 127G 95G 58% /
tmpfs 32G 875M 31G 3% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
/dev/sda1 511M 5.3M 506M 2% /boot/efi
tmpfs 6.3G 240K 6.3G 1% /run/user/1000
Thanks for any pointers!
