绿联 dxp2800 装了飞牛，原硬盘无法挂载怎么办？

coderstory

原本有 3 个硬盘，2 个 hdd 组了 radi11，一个 ssd 每组，绿联全部使用了 mdadm 组 radid+lvm+btrfs 的模式，飞牛可以识别到多个 md 设备，但是无法挂载，看上去 btrfs 工具版本太低了。

coderstory@coderstory:/$ sudo mount -t btrfs /dev/mapper/ug_2FD03D_1727502818_pool1-volume1 /vol1
mount: /vol1: wrong fs type, bad option, bad superblock on /dev/mapper/ug_2FD03D_1727502818_pool1-volume1, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
coderstory@coderstory:/$ sudo file -s /dev/mapper/ug_2FD03D_1727502818_pool1-volume1
/dev/mapper/ug_2FD03D_1727502818_pool1-volume1: symbolic link to ../dm-1
coderstory@coderstory:/$ sudo file -s /dev/dm-1
/dev/dm-1: BTRFS Filesystem label "pool1", sectorsize 4096, nodesize 16384, leafsize 16384, UUID=0c5e33b6-2661-4aa8-a26e-3e8db6bf0178, 1174034886656/3983582167040 bytes used, 1 devices
coderstory@coderstory:/$ sudo mount -t btrfs -o ssd,space_cache=v2 /dev/dm-1 /vol1
mount: /vol1: wrong fs type, bad option, bad superblock on /dev/mapper/ug_2FD03D_1727502818_pool1-volume1, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
coderstory@coderstory:/$ lsmod | grep btrfs
btrfs                2080768  0
xor                    20480  2 async_xor,btrfs
raid6_pq              122880  4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c              12288  6 nf_conntrack,nf_nat,openvswitch,btrfs,nf_tables,raid456
coderstory@coderstory:/$ sudo modprobe btrfs
coderstory@coderstory:/$ sudo mount -t btrfs /dev/dm-1 /vol1
mount: /vol1: wrong fs type, bad option, bad superblock on /dev/mapper/ug_2FD03D_1727502818_pool1-volume1, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
coderstory@coderstory:/$ ls -ld /vol1
drwxr-xr-x 2 root root 4096 Oct 31 12:11 /vol1
coderstory@coderstory:/$ sudo btrfs subvolume list /dev/dm-1
ERROR: not a directory: /dev/dm-1
ERROR: can't access '/dev/dm-1'
coderstory@coderstory:/$ sudo btrfs subvolume list /dev/dm-1
ERROR: not a directory: /dev/dm-1
ERROR: can't access '/dev/dm-1'
coderstory@coderstory:/$ sudo btrfs check --force /dev/dm-1
Opening filesystem to check...
couldn't open because of unsupported option features (4000000000000000).
ERROR: cannot open file system
coderstory@coderstory:/$​ coderstory@coderstory:/$ sudo btrfs check --force /dev/dm-1
Opening filesystem to check...
couldn't open because of unsupported option features (4000000000000000).
ERROR: cannot open file system
-bash: coderstory@coderstory:/$: No such file or directory
-bash: Opening: command not found

coderstory

[  628.779866] BTRFS info (device dm-1): using crc32c (crc32c-intel) checksum algorithm
[  628.779874] BTRFS info (device dm-1): using free-space-tree
[  628.779876] BTRFS error (device dm-1): cannot mount because of unknown incompat features (0x4000000000000361)
[  628.779911] BTRFS error (device dm-1): open_ctree failed: -22
[  908.365294] [trim-mounts-hash]'/''s top mountpoint dentry: dev
[  908.365310] [trim-mounts-hash]dentry 'dev' type: 0
[ 1323.240995] BTRFS: device label pool1 devid 1 transid 49740 /dev/mapper/ug_2FD03D_1727502818_pool1-volume1 (253:1) scanned by mount (28728)
[ 1323.241549] BTRFS info (device dm-1): first mount of filesystem 0c5e33b6-2661-4aa8-a26e-3e8db6bf0178
[ 1323.241580] BTRFS info (device dm-1): using crc32c (crc32c-intel) checksum algorithm
[ 1323.241590] BTRFS info (device dm-1): using free-space-tree
[ 1323.241593] BTRFS error (device dm-1): cannot mount because of unknown incompat features (0x4000000000000361)
[ 1323.241637] BTRFS error (device dm-1): open_ctree failed: -22
[ 1787.644320] BTRFS: device label pool1 devid 1 transid 49740 /dev/mapper/ug_2FD03D_1727502818_pool1-volume1 (253:1) scanned by mount (29724)
[ 1787.644880] BTRFS info (device dm-1): first mount of filesystem 0c5e33b6-2661-4aa8-a26e-3e8db6bf0178
[ 1787.644929] BTRFS info (device dm-1): using crc32c (crc32c-intel) checksum algorithm
[ 1787.644942] BTRFS info (device dm-1): using free-space-tree
[ 1787.644945] BTRFS error (device dm-1): cannot mount because of unknown incompat features (0x4000000000000361)
[ 1787.645108] BTRFS error (device dm-1): open_ctree failed: -22

补一下内核日志，就是不兼容导致的。。蛋疼

coderstory

放弃了 这破玩意挂载不了

sudo mount -t btrfs -o ro,skip_incompat_check,force /dev/ug_2FD03D_1727502818_pool1/volume1 /vol1
mount: /vol1: wrong fs type, bad option, bad superblock on /dev/mapper/ug_2FD03D_1727502818_pool1-volume1, missing codepage or helper program, or other error.
       dmesg(1) may have more information after failed mount system call.
coderstory@coderstory:/$ sudo mount -t btrfs -o ro,skip_incompat_check,force /dev/ug_2FD03D_1727502818_pool1/volume1 /vol1
mount: /vol1: wrong fs type, bad option, bad superblock on /dev/mapper/ug_2FD03D_1727502818_pool1-volume1, missing codepage or helper program, or other error.
       dmesg(1) may have more information after failed mount system call.
coderstory@coderstory:/$ 

ZYan

飞牛挂载存储空间必须格式化，就算你通过命令行挂载上去也可能会出问题