On Mon, Jun 04, 2012 at 07:43:40AM -0400, Maxim Mikheev wrote: > alternate copy you wish to use. In the following example we ask for > using the superblock copy #2 of /dev/sda7: > > # ./btrfsck -s 2 /dev/sd7 > > ----------------------------------------- > but it gave me: > $ sudo btrfsck -s 2 /dev/sdb > btrfsck: invalid option -- 's' > usage: btrfsck dev > Btrfs Btrfs v0.19 > > What can I do more?
I have found that due to an error in getopt_long() usage, btrfsck does not accept the short-form option. Use --super instead. -- Ryan C. Underwood, <neme...@icequake.net>
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