嘿，在更新期间冻结后，我的 btrfs 分区无法挂载。我尝试了所有我能找到的 Archlinux 和 BTRFS Wiki，但这还不够。
我尝试了什么和输出：
$ sudo mount -t btrfs /dev/sda3 /mnt
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sda3, missing codepage or helper program, or other error.
$ sudo btrfs 救援超级恢复 /dev/sda3
parent transid verify failed on 204229967872 wanted 182262 found 182259
parent transid verify failed on 204229967872 wanted 182262 found 182259
Ignoring transid failure
parent transid verify failed on 204229853184 wanted 182261 found 182259
parent transid verify failed on 204229853184 wanted 182261 found 182259
Ignoring transid failure
leaf parent key incorrect 204229853184
Failed to recover bad superblocks
double free or corruption (fasttop)
Aborted
$ sudo btrfsck --repair /dev/sda3
enabling repair mode
parent transid verify failed on 204229967872 wanted 182262 found 182259
parent transid verify failed on 204229967872 wanted 182262 found 182259
Ignoring transid failure
parent transid verify failed on 204229853184 wanted 182261 found 182259
parent transid verify failed on 204229853184 wanted 182261 found 182259
Ignoring transid failure
leaf parent key incorrect 204229853184
ERROR: cannot open file system
$ sudo btrfs 拯救零日志 /dev/sda3
parent transid verify failed on 204229967872 wanted 182262 found 182259
parent transid verify failed on 204229967872 wanted 182262 found 182259
Ignoring transid failure
parent transid verify failed on 204229853184 wanted 182261 found 182259
parent transid verify failed on 204229853184 wanted 182261 found 182259
Ignoring transid failure
leaf parent key incorrect 204229853184
ERROR: could not open ctree
$ sudo btrfs check --repair --init-extent-tree --init-csum-tree /dev/sda3
enabling repair mode
Creating a new CRC tree
parent transid verify failed on 204229967872 wanted 182262 found 182259
parent transid verify failed on 204229967872 wanted 182262 found 182259
Ignoring transid failure
Checking filesystem on /dev/sda3
UUID: 4951455b-7883-46a3-a878-d6347f852867
repair mode will force to clear out log tree, are you sure? [y/N]: y
Unable to find block group for 0
Unable to find block group for 0
Unable to find block group for 0
extent-tree.c:2764: alloc_tree_block: BUG_ON `ret` triggered, value -28
btrfs(+0x1fe10)[0x55e6ed511e10]
btrfs(+0x1fe80)[0x55e6ed511e80]
btrfs(+0x1fe93)[0x55e6ed511e93]
btrfs(btrfs_alloc_free_block+0x83)[0x55e6ed51621c]
btrfs(__btrfs_cow_block+0xfe)[0x55e6ed50a7fc]
btrfs(btrfs_cow_block+0xc5)[0x55e6ed50ada1]
btrfs(commit_tree_roots+0x56)[0x55e6ed52f844]
btrfs(btrfs_commit_transaction+0xb9)[0x55e6ed52fb18]
btrfs(cmd_check+0x757)[0x55e6ed545686]
btrfs(main+0x143)[0x55e6ed509847]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb)[0x7f47c685f09b]
btrfs(_start+0x2a)[0x55e6ed50988a]
Aborted