Assembling Software RAID in Live CD for data recovery
- by Maletor
I need help recovering some data that's on my RAID which is on a LVM on my server running Ubuntu.
What happened was I deleted the logical volume that controlled my swap space which was on a partition on drives sda2, sdb2, sdc2, and sdd2 in RAID1.
This foobared my whole system for one reason or another. Booting leave me with grub rescue and an error saying that it is an unknown filesystem.
When I boot to a live cd I can see my RAID arrays and I can even start them up. However, it doesn't appear to mount them anywhere so I can't see the data.
I am in the live cd now and I have done sudo apt-get install mdadm lvm2 so it should be mounting them correctly. I just can't see why it wouldn't.
Please any help is appreciated here.
Here is some output.
By the way, there are 3 RAIDs, 1) /boot 100mb RAID1, 2) swap 10gb RAID1, 3) root 990GB RAID5
ubuntu@ubuntu:~$ df -h
Filesystem Size Used Avail Use% Mounted on
aufs 124M 101M 18M 86% /
none 2.0G 324K 2.0G 1% /dev
/dev/sde1 2.0G 826M 1.2G 42% /cdrom
/dev/loop0 667M 667M 0 100% /rofs
none 2.0G 164K 2.0G 1% /dev/shm
tmpfs 2.0G 28K 2.0G 1% /tmp
none 2.0G 92K 2.0G 1% /var/run
none 2.0G 0 2.0G 0% /var/lock
none 2.0G 0 2.0G 0% /lib/init/rw
/dev/md1 91M 73M 15M 84% /media/5ac3dbf1-a6c5-409c-96ae-edc6e27992c7
ubuntu@ubuntu:~$ cat /etc/fstab
aufs / aufs rw 0 0
tmpfs /tmp tmpfs nosuid,nodev 0 0
/dev/sda2 swap swap defaults 0 0
/dev/sdb2 swap swap defaults 0 0
/dev/sdc2 swap swap defaults 0 0
/dev/sdd2 swap swap defaults 0 0
