Am 22.10.18 um 22:02 schrieb Gervais, Francois: > Hi, > > I think I lost power on my btrfs disk and it looks like it is now in an > unfunctional state. > > Any idea how I could debug that issue? > > Here is what I have: > > kernel 4.4.0-119-generic > btrfs-progs v4.4 > > > > sudo btrfs check /dev/sdd > Checking filesystem on /dev/sdd > UUID: 9a14b7a1-672c-44da-b49a-1f6566db3e44 > checking extents > checking free space cache > checking fs roots > checking csums > checking root refs > checking quota groups > Ignoring qgroup relation key 310 > Ignoring qgroup relation key 311
Since Kernel 4.4. were quite a lot of stability changes. In practice, I try first booting a nearly current kernel with current btrfs-tools. Practical easiest way to do so is to download and dd an arch linux iso to a usb stick and booting from this stick. see: https://www.archlinux.org/ Afterwards I repeated the repair try. In more than one case before this procedure worked for me. mit freundlichen Grüßen Jürgen Sauer
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