On 2018/9/19 下午9:19, Zbigniew 'zibi' Jarosik wrote: > Hi! > > I can't mount my RAID1 set as rootfs, but as normal mount to running > system works normally. It was working normal, than some day it died. > > When booted to rootfs as > root=UUID=98c94774-d93a-400e-a275-58cc3ac2a58a rootflags=subvol=@root > i got: > > BTRFS error (device bcache2): devid 5 uuid > dd09f810-717e-4f2f-97ab-26469d5adca5 is missing > BTRFS error (device bcache2): failed to read the system array: -2
One of your device is missing, thus read_one_dev() refuse to continue and return -ENOENT (-2). Does the iniramfs do a "btrfs dev scan" to make populate btrfs devices lists? > BTRFS error (device bcache2): open_ctree failed > mount: mounting /dev/bcache2 on /root failed: Invalid argument > > and (initramfs) prompt. > > Bcache devices are registered and populated in /dev. > > When I boot exacly the same kernel and initrd, but rootfs is on > pendrive ( root=/dev/sda2 ) than mount dataset to subdir ( mount UUID= > 98c94774-d93a-400e-a275-58cc3ac2a58a /data ) - works flawlessly. > > Thanks in advance for any ideas. > > Some system info: > > /dev/sdb1: UUID="780cc211-2408-4594-83df-379ee23d6ed8" TYPE="bcache" > PARTLABEL="Linux filesystem" > PARTUUID="ef83f1b4-b55c-4deb-8037-69ff16909222" > /dev/sdc1: UUID="80a1b115-8a1f-41f7-b65b-dd4fdaf400f1" TYPE="bcache" > PARTLABEL="Linux filesystem" > PARTUUID="1f920d16-af68-440b-891c-5ff61c3057ca" > /dev/sdd1: UUID="a40e80dc-f7e2-4a9c-9bfe-81489a1261ca" TYPE="bcache" > PARTLABEL="Linux filesystem" > PARTUUID="4b68c314-f029-402a-b332-b0b9109ad51d" > /dev/bcache0: UUID="98c94774-d93a-400e-a275-58cc3ac2a58a" > UUID_SUB="dd09f810-717e-4f2f-97ab-26469d5adca5" TYPE="btrfs" The devices is indeed here, so it's not a missing device, but looks like at mount time, btrfs hasn't fully scanned all devices. You could refer to your distribution manual to figure out how to make btrfs scan work before mounting the rootfs. Thanks, Qu > /dev/bcache1: UUID="98c94774-d93a-400e-a275-58cc3ac2a58a" > UUID_SUB="8469962d-f9ee-4b5f-b4d5-4a62190c0d8f" TYPE="btrfs" > /dev/bcache2: UUID="98c94774-d93a-400e-a275-58cc3ac2a58a" > UUID_SUB="516f2bd1-3fcc-42fd-87ad-5d5fa2f84b5f" TYPE="btrfs" > > Linux hp1 4.17.11-ldkb #2 SMP Thu Aug 2 09:24:58 CEST 2018 x86_64 GNU/Linux > btrfs-progs v4.7.3 > Label: none uuid: 98c94774-d93a-400e-a275-58cc3ac2a58a > Total devices 3 FS bytes used 3.21TiB > devid 3 size 2.73TiB used 2.07TiB path /dev/bcache2 > devid 4 size 2.73TiB used 2.18TiB path /dev/bcache1 > devid 5 size 2.73TiB used 2.18TiB path /dev/bcache0 > Data, RAID1: total=3.20TiB, used=3.20TiB > System, RAID1: total=32.00MiB, used=480.00KiB > Metadata, RAID1: total=12.00GiB, used=10.81GiB > GlobalReserve, single: total=512.00MiB, used=0.00B > >
signature.asc
Description: OpenPGP digital signature
