On Mon, Jul 4, 2016 at 12:54 PM, Tomáš Hrdina <thomas.rkh@xxxxxxxxx> wrote: > Degraded gives same result: > > sudo mount -t btrfs -o ro,degraded /dev/sda /shares > mount: wrong fs type, bad option, bad superblock on /dev/sda, > missing codepage or helper program, or other error > > In some cases useful info is found in syslog - try > dmesg | tail or so. > That's bad. What are the kernel messages for the mount attempt? Do the following and report back all the results. # btrfs dev scan # btrfs fi show # blkid # btrfs check /dev/sda Also, make sure you reply to the btrfs list also and not just to me personally. And also don't top post or it'll annoy some people on the list. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
