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32ce
2015 Mar 07
2
which uuid to specify a raid in fstab
I'm confused about which UUID to use to identify a software RAID in fstab.
lsblk -fs shows:
md127p1 ext4 c43af789-82aa-49e9-a8ed-acd52b1cdd58 /y
--- md127 ext4 39c20575-4257-4fd7-b5c8-8a15757e9e8e
--- sdb1 linux_r hostname:0
af77830e-8cfd-9012-62ce-e57105c3bf6c
--- sdb
--- sdc1 linux_r hostname:0
af77830e-8cfd-9012-62ce-e57105c3bf6c
--- sdc linux_r hostname:0
af77830e-8cfd-9012-62ce-e57105c3bf6c
mdadm --detail
gives for both md127p1 and md127
UUID : af77830e:8cfd9012:62cee571:05c3bf6c
I...
2012 Jan 22
1
Trying to mount RAID1 degraded with removed disk -> open_ctree failed
...re are the details:
- latest kernel 3.2.1 and btrfs-tools on xubuntu 11.10
# uname -a
Linux sol2 3.2.1-030201-generic #201201121644 SMP Thu Jan 12 21:45:24
UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
# btrfs device scan
# btrfs fi show btrfs-r1b
Label: ''btrfs-r1b'' uuid: 11ac3be1-62ce-4b1c-8069-63942f1354bd
Total devices 3 FS bytes used 206.60GB
devid 3 size 465.66GB used 140.00GB path /dev/sdc1
devid 2 size 465.66GB used 139.02GB path /dev/sda2
*** Some devices missing
# mount -o degraded /r1b
mount: /dev/sdc1: can''t read supe...