一天前，我的 SSD 还可以正常使用。然后它突然损坏了我的主文件系统，导致在最详细的调试级别出现以下 fsck 输出：
Info: Fix the reported corruption.
Info: Force to fix corruption
Info: Force to fix corruption
Info: Debug level = 3
Info: can't find /sys, assuming normal block device
Info: Segments per section = 1
Info: Sections per zone = 1
Info: sector size = 512
Info: total sectors = 536870912 (262144 MB)
Info: MKFS version
"Linux version 5.4.0-72-generic (buildd@lcy01-amd64-019) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #80-Ubuntu SMP Mon Apr 12 17:35:00 UTC 2021"
Info: FSCK version
from "Linux version 5.4.0-74-generic (buildd@lgw01-amd64-038) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #83-Ubuntu SMP Sat May 8 02:35:39 UTC 2021"
to "Linux version 6.2.0-20-generic (buildd@lcy02-amd64-035) (x86_64-linux-gnu-gcc-12 (Ubuntu 12.2.0-17ubuntu1) 12.2.0, GNU ld (GNU Binutils for Ubuntu) 2.40) #20-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr 6 07:48:48 UTC 2023"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
+--------------------------------------------------------+
| Super block |
+--------------------------------------------------------+
magic [0xf2f52010 : 4076150800]
major_ver [0x 1 : 1]
volum_name []
minor_ver [0x b : 11]
log_sectorsize [0x 9 : 9]
log_sectors_per_block [0x 3 : 3]
log_blocksize [0x c : 12]
log_blocks_per_seg [0x 9 : 9]
segs_per_sec [0x 1 : 1]
secs_per_zone [0x 1 : 1]
checksum_offset [0x 0 : 0]
block_count [0x 4000000 : 67108864]
section_count [0x 1fe85 : 130693]
segment_count [0x 1ffff : 131071]
segment_count_ckpt [0x 2 : 2]
segment_count_sit [0x a : 10]
segment_count_nat [0x 6e : 110]
segment_count_ssa [0x 100 : 256]
segment_count_main [0x 1fe85 : 130693]
segment0_blkaddr [0x 200 : 512]
cp_blkaddr [0x 200 : 512]
sit_blkaddr [0x 600 : 1536]
nat_blkaddr [0x 1a00 : 6656]
ssa_blkaddr [0x f600 : 62976]
main_blkaddr [0x 2f600 : 194048]
root_ino [0x 3 : 3]
node_ino [0x 1 : 1]
meta_ino [0x 2 : 2]
cp_payload [0x 0 : 0]
crc [0x 0 : 0]
version Linux version 5.4.0-74-generic (buildd@lgw01-amd64-038) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #83-Ubuntu SMP Sat May 8 02:35:39 UTC 2021
Info: total FS sectors = 536870912 (262144 MB)
Invalid CP CRC offset: 0
Invalid CP CRC offset: 0
[f2fs_do_mount:3512] Can't find valid checkpoint
我可以选择哪些选项来将文件系统恢复到工作状态？我愿意编写代码来恢复超级块和/或检查点，包括从现有的无效检查点和现有的超级块中组装出有效的检查点。驱动器中的其他文件系统都很好。