Hi to all,
Sorry for the late reply. running the commands as suggested gave the following:
1. # dump.f2fs -i 0x3 /dev/sdc3
Info: sector size = 512
Info: total sectors = 25624576 (12512 MB)
Info: MKFS version
"Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
(gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
19 17:16:04 PKT 2018"
Info: FSCK version
from "Linux version 4.1.46-EliteKernelReborn-v6+
(hassanmirza01@ubuntu) (gcc version 4.9 20150123 (prerelease) (GCC) )
#1 SMP PREEMPT Sat Jan 27 00:46:02 PKT 2018"
to "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
SMP Thu Nov 14 01:44:41 UTC 2019"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 22310912 (10894 MB)
Info: CKPT version = 1307e4
Info: checkpoint state = 4 : compacted_summary sudden-power-off
Invalid node block
Done.
2. # dump.f2fs -i 0x4 /dev/sdc3
Info: sector size = 512
Info: total sectors = 25624576 (12512 MB)
Info: MKFS version
"Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
(gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
19 17:16:04 PKT 2018"
Info: FSCK version
from "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
SMP Thu Nov 14 01:44:41 UTC 2019"
to "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
SMP Thu Nov 14 01:44:41 UTC 2019"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 22310912 (10894 MB)
Info: CKPT version = 1307e4
Info: checkpoint state = 4 : compacted_summary sudden-power-off
[print_node_info: 103] Node ID [0x4:4] is inode
i_mode [0x 41f8 : 16888]
i_advise [0x 2 : 2]
i_uid [0x 3ff : 1023]
i_gid [0x 3ff : 1023]
i_links [0x 5 : 5]
i_size [0x 1000 : 4096]
i_blocks [0x 3 : 3]
i_atime [0x5c52cc67 : 1548930151]
i_atime_nsec [0x380742f0 : 939999984]
i_ctime [0x5da861d5 : 1571316181]
i_ctime_nsec [0x232aaf7f : 589999999]
i_mtime [0x5ca8c4a0 : 1554564256]
i_mtime_nsec [0x bebc1fd : 199999997]
i_generation [0x414c2cfb : 1095511291]
i_current_depth [0x 1 : 1]
i_xattr_nid [0x 5 : 5]
i_flags [0x 0 : 0]
i_inline [0x 0 : 0]
i_pino [0x 3 : 3]
i_namelen [0x 5 : 5]
i_name [media]
i_ext: fofs:0 blkaddr:0 len:0
i_addr[0] [0x 294852 : 2705490]
i_addr[1] [0x 0 : 0]
i_addr[2] [0x 0 : 0]
i_addr[3] [0x 0 : 0]
i_nid[0] [0x 0 : 0]
i_nid[1] [0x 0 : 0]
i_nid[2] [0x 0 : 0]
i_nid[3] [0x 0 : 0]
i_nid[4] [0x 0 : 0]
Not a regular file
Done.
3. dump.f2fs -i 0x5 /dev/sdc3
Info: sector size = 512
Info: total sectors = 25624576 (12512 MB)
Info: MKFS version
"Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
(gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri Jan
19 17:16:04 PKT 2018"
Info: FSCK version
from "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
SMP Thu Nov 14 01:44:41 UTC 2019"
to "Linux version 4.4.0-170-generic (buildd@lgw01-amd64-015) (gcc
version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ) #199-Ubuntu
SMP Thu Nov 14 01:44:41 UTC 2019"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 22310912 (10894 MB)
Info: CKPT version = 1307e4
Info: checkpoint state = 4 : compacted_summary sudden-power-off
[print_node_info: 109] Node ID [0x5:5] is direct node or indirect node.
[0] [0xf2f52011 : -218816495]
[1] [0x 1 : 1]
[2] [0x 0 : 0]
[3] [0x 0 : 0]
[4] [0x 0 : 0]
[5] [0x 0 : 0]
[6] [0x 210706 : 2164486]
[7] [0x696c6573 : 1768711539]
[8] [0x7578756e : 1970828654]
[9] [0x6a626f3a : 1784835898]
[10] [0x5f746365 : 1601463141]
Not a regular file
Done.
Those are the results. Hoping for your assistance and help
Regards
Stephanos M.
On 12/4/19, Chao Yu <[email protected]> wrote:
> Hi Jaegeuk,
>
> On 2019/12/4 1:43, Jaegeuk Kim wrote:
>> Hi,
>>
>> I think you didn't back up the root inode block, since it showed zeros.
>> Could you try the below a bit on fresh back-up image again?
>>
>> # dump.f2fs -i 0x3 /dev/sdc1
>> # dump.f2fs -i 0x4 /dev/sdc1
>> # dump.f2fs -i 0x5 /dev/sdc1
>
> Quoted:
> "[ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0"
>
> Look into log in the Stephanos' first report email, it looks like nat entry
> of root inode was broken, if this is true, IMO, we have to add a routine to
> detect such inconsistence and lookup last root inode and relink to its nat
> entry.
>
> Thanks,
>
>>
>> Thanks,
>>
>> On 11/28, Stephanos Mallouris wrote:
>>> Hi,
>>>
>>> Thanks for the effort and advice .
>>> Did execute the command. It gave a lot of information ,
>>> so i am attaching that to a file.
>>>
>>> Regards
>>>
>>> Stephanos
>>>
>>>
>>> On 11/27/19, Jaegeuk Kim <[email protected]> wrote:
>>>> Hi,
>>>>
>>>> On 11/27, Stephanos Mallouris wrote:
>>>>> Dear Kim ,
>>>>>
>>>>> Regarding the question:
>>>>>
>>>>> "Hmm, # of valid blocks is 0, which is really impossible.
>>>>> Do you have original backed up image? I think at some point the image
>>>>> was overwritten when fsck.f2fs tried to fix.
>>>>> "
>>>>>
>>>>> I do have the original dump raw image. Please advice actions
>>>>> to assist in recovering it.
>>>>
>>>> Could you share the first run with that image?
>>>> # fsck.f2fs -d 3 "fresh backup image"
>>>>
>>>> Thanks,
>>>>
>>>>>
>>>>> I did a dd to an external drive, and from where i tried unsuccessful
>>>>> so
>>>>> far.
>>>>> I use the following command
>>>>>
>>>>> sudo dd if=mmcblk0p49.raw bs=512 oflag=sync status=progress
>>>>> of=/dev/sda1
>>>>>
>>>>> mmcblk0p49.raw is the backup partitioned.
>>>>>
>>>>> Thanks in advance
>>>>>
>>>>> Stephanos M.
>>>>>
>>>>>
>>>>> On 11/26/19, Jaegeuk Kim <[email protected]> wrote:
>>>>>> On 11/26, Stephanos Mallouris wrote:
>>>>>>> Dear Kim,
>>>>>>>
>>>>>>> Thanks for getting back to me.
>>>>>>>
>>>>>>> I executed the command fsck.f2fs -d 3 -f /dev/sdc1
>>>>>>> and it gave me the following information:
>>>>>>>
>>>>>>> Info: Debug level = 3
>>>>>>> Info: Force to fix corruption
>>>>>>> Info: sector size = 512
>>>>>>> Info: total sectors = 22310913 (10894 MB)
>>>>>>> Info: MKFS version
>>>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+ (hassanmirza01@ubuntu)
>>>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri
>>>>>>> Jan
>>>>>>> 19 17:16:04 PKT 2018"
>>>>>>> Info: FSCK version
>>>>>>> from "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>> (gcc
>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>> #198-Ubuntu
>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>> to "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>> (gcc
>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>> #198-Ubuntu
>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>> 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 7 : 7]
>>>>>>> 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 2a8e00 : 2788864]
>>>>>>> section_count [0x 151f : 5407]
>>>>>>> segment_count [0x 1546 : 5446]
>>>>>>> segment_count_ckpt [0x 2 : 2]
>>>>>>> segment_count_sit [0x 2 : 2]
>>>>>>> segment_count_nat [0x 18 : 24]
>>>>>>> segment_count_ssa [0x b : 11]
>>>>>>> segment_count_main [0x 151f : 5407]
>>>>>>> segment0_blkaddr [0x 200 : 512]
>>>>>>> cp_blkaddr [0x 200 : 512]
>>>>>>> sit_blkaddr [0x 600 : 1536]
>>>>>>> nat_blkaddr [0x a00 : 2560]
>>>>>>> ssa_blkaddr [0x 3a00 : 14848]
>>>>>>> main_blkaddr [0x 5000 : 20480]
>>>>>>> root_ino [0x 3 : 3]
>>>>>>> node_ino [0x 1 : 1]
>>>>>>> meta_ino [0x 2 : 2]
>>>>>>> cp_payload [0x 0 : 0]
>>>>>>> version Linux version 4.4.0-169-generic
>>>>>>> (buildd@lgw01-amd64-022) (gcc version 5.4.0 20160609 (Ubuntu
>>>>>>> 5.4.0-6ubuntu1~16.04.12) ) #198-Ubuntu SMP Tue Nov 12 10:34:23 UTC
>>>>>>> 2019
>>>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>>>> Info: CKPT version = 1307e4
>>>>>>>
>>>>>>> +--------------------------------------------------------+
>>>>>>> | Checkpoint |
>>>>>>> +--------------------------------------------------------+
>>>>>>> checkpoint_ver [0x 1307e4 : 1247204]
>>>>>>> user_block_count [0x 289400 : 2659328]
>>>>>>> valid_block_count [0x 0 : 0]
>>>>>>
>>>>>> Hmm, # of valid blocks is 0, which is really impossible.
>>>>>> Do you have original backed up image? I think at some point the image
>>>>>> was overwritten when fsck.f2fs tried to fix.
>>>>>>
>>>>>>> rsvd_segment_count [0x 70 : 112]
>>>>>>> overprov_segment_count [0x d5 : 213]
>>>>>>> free_segment_count [0x 1519 : 5401]
>>>>>>> alloc_type[CURSEG_HOT_NODE] [0x 1 : 1]
>>>>>>> alloc_type[CURSEG_WARM_NODE] [0x 1 : 1]
>>>>>>> alloc_type[CURSEG_COLD_NODE] [0x 1 : 1]
>>>>>>> cur_node_segno[0] [0x 3 : 3]
>>>>>>> cur_node_segno[1] [0x 4 : 4]
>>>>>>> cur_node_segno[2] [0x 5 : 5]
>>>>>>> cur_node_blkoff[0] [0x 0 : 0]
>>>>>>> cur_node_blkoff[1] [0x 0 : 0]
>>>>>>> cur_node_blkoff[2] [0x 0 : 0]
>>>>>>> alloc_type[CURSEG_HOT_DATA] [0x 1 : 1]
>>>>>>> alloc_type[CURSEG_WARM_DATA] [0x 1 : 1]
>>>>>>> alloc_type[CURSEG_COLD_DATA] [0x 1 : 1]
>>>>>>> cur_data_segno[0] [0x 0 : 0]
>>>>>>> cur_data_segno[1] [0x 1 : 1]
>>>>>>> cur_data_segno[2] [0x 2 : 2]
>>>>>>> cur_data_blkoff[0] [0x 0 : 0]
>>>>>>> cur_data_blkoff[1] [0x 0 : 0]
>>>>>>> cur_data_blkoff[2] [0x 0 : 0]
>>>>>>> ckpt_flags [0x 1 : 1]
>>>>>>> cp_pack_total_block_count [0x 8 : 8]
>>>>>>> cp_pack_start_sum [0x 1 : 1]
>>>>>>> valid_node_count [0x 0 : 0]
>>>>>>> valid_inode_count [0x 0 : 0]
>>>>>>> next_free_nid [0x 14105 : 82181]
>>>>>>> sit_ver_bitmap_bytesize [0x 40 : 64]
>>>>>>> nat_ver_bitmap_bytesize [0x 300 : 768]
>>>>>>> checksum_offset [0x ffc : 4092]
>>>>>>> elapsed_time [0x 167a468 : 23569512]
>>>>>>> sit_nat_version_bitmap[0] [0x 79 : 121]
>>>>>>>
>>>>>>>
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x4bb2] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x6ba0] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x783c] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xa0ec] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xab88] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xadcd] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xb19c] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xb431] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xb8f4] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xbf40] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xce28] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xd299] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xd56c] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xd8d3] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xe527] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xe67d] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xf88c] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0xfc96] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x10271] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x111d6] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1154e] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x11b66] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1271e] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x12abc] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1339b] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x137d2] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x139ae] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x14363] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x146a2] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x151a3] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x151da] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x15580] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x15744] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x158eb] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x16030] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x1632b] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x16722] in nat cache
>>>>>>> [lookup_nat_in_journal:1515] ==> Found nid [0x16c38] in nat cache
>>>>>>> [build_nat_area_bitmap:1718] valid nat entries (block_addr != 0x0)
>>>>>>> [0x
>>>>>>> 0 : 0]
>>>>>>> [build_sit_area_bitmap:1214] Blocks [0x0 : 0] Free Segs [0x1519 :
>>>>>>> 5401]
>>>>>>>
>>>>>>> Info: checkpoint state = 1 : unmount
>>>>>>> [ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0
>>>>>>>
>>>>>>> [FSCK] Unreachable nat entries [Ok..] [0x0]
>>>>>>> [FSCK] SIT valid block bitmap checking [Ok..]
>>>>>>> [FSCK] Hard link checking for regular file [Ok..] [0x0]
>>>>>>> [FSCK] valid_block_count matching with CP [Ok..] [0x0]
>>>>>>> [FSCK] valid_node_count matcing with CP (de lookup) [Ok..] [0x0]
>>>>>>> [FSCK] valid_node_count matcing with CP (nat lookup) [Ok..] [0x0]
>>>>>>> [FSCK] valid_inode_count matched with CP [Ok..] [0x0]
>>>>>>> [FSCK] free segment_count matched with CP [Ok..]
>>>>>>> [0x1519]
>>>>>>> [FSCK] next block offset is free [Ok..]
>>>>>>> [FSCK] fixing SIT types
>>>>>>> [FSCK] other corrupted bugs [Fail]
>>>>>>> [move_curseg_info:1471] Move curseg[0] 0 -> 0 after 5000
>>>>>>> [move_curseg_info:1471] Move curseg[1] 1 -> 1 after 5000
>>>>>>> [move_curseg_info:1471] Move curseg[2] 2 -> 2 after 5000
>>>>>>> [move_curseg_info:1471] Move curseg[3] 3 -> 3 after 5000
>>>>>>> [move_curseg_info:1471] Move curseg[4] 4 -> 4 after 5000
>>>>>>> [move_curseg_info:1471] Move curseg[5] 5 -> 5 after 5000
>>>>>>>
>>>>>>> Done.
>>>>>>>
>>>>>>>
>>>>>>> It still give the same error trying to mount the partiotion.
>>>>>>> [57765.609319] F2FS-fs (sdc1): Failed to read root inode
>>>>>>> [57765.651048] F2FS-fs (sdc1): Failed to read root inode
>>>>>>> [58015.507861] F2FS-fs (sdc1): Failed to read root inode
>>>>>>> [58015.563422] F2FS-fs (sdc1): Failed to read root inode
>>>>>>>
>>>>>>> Please advice and assist if possible.
>>>>>>>
>>>>>>> Kindest Regards,
>>>>>>>
>>>>>>> Stephanos Mallouris
>>>>>>>
>>>>>>> On 11/25/19, Jaegeuk Kim <[email protected]> wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> On 11/22, Stephanos Mallouris wrote:
>>>>>>>>> Dear all,
>>>>>>>>>
>>>>>>>>> I have backup my f2fs android partition via netcat and adb.
>>>>>>>>> After loosing the original partition, tried to restore it on a
>>>>>>>>> local
>>>>>>>>> drive and access it via linux but i am encountering the following
>>>>>>>>> issues:
>>>>>>>>>
>>>>>>>>> A. trying the command
>>>>>>>>>
>>>>>>>>> sudo mount -t f2fs /dev/sdc1 /mnt
>>>>>>>>>
>>>>>>>>> gives the following error
>>>>>>>>>
>>>>>>>>> F2FS-fs (sdc1): Failed to read root inode
>>>>>>>>>
>>>>>>>>> B1. Tried to fsck the file system , see bellow:
>>>>>>>>>
>>>>>>>>> sudo fsck.f2fs -a /dev/sdc1
>>>>>>>>>
>>>>>>>>> result:
>>>>>>>>>
>>>>>>>>> Info: Fix the reported corruption.
>>>>>>>>> Info: sector size = 512
>>>>>>>>> Info: total sectors = 22310913 (10894 MB)
>>>>>>>>> Info: MKFS version
>>>>>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+
>>>>>>>>> (hassanmirza01@ubuntu)
>>>>>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri
>>>>>>>>> Jan
>>>>>>>>> 19 17:16:04 PKT 2018"
>>>>>>>>> Info: FSCK version
>>>>>>>>> from "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>>>> (gcc
>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>> #198-Ubuntu
>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>> to "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>>>> (gcc
>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>> #198-Ubuntu
>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>> Info: superblock features = 0 :
>>>>>>>>> Info: superblock encrypt level = 0, salt =
>>>>>>>>> 00000000000000000000000000000000
>>>>>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>>>>>> Info: CKPT version = 1307e4
>>>>>>>>> Info: No error was reported
>>>>>>>>>
>>>>>>>>> Still unable to mount the partiotion , gives the same error.
>>>>>>>>>
>>>>>>>>> B2. Tried
>>>>>>>>> sudo fsck.f2fs -f /dev/sdc1
>>>>>>>>
>>>>>>>> Could you try: fsck.f2fs -d 3 -f /dev/sdc1?
>>>>>>>> It seems you didn't back up the entire partition which is missing
>>>>>>>> root
>>>>>>>> inode
>>>>>>>> block.
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>>
>>>>>>>>>
>>>>>>>>> result
>>>>>>>>>
>>>>>>>>> Info: Force to fix corruption
>>>>>>>>> Info: sector size = 512
>>>>>>>>> Info: total sectors = 22310913 (10894 MB)
>>>>>>>>> Info: MKFS version
>>>>>>>>> "Linux version 4.1.46-EliteKernelReborn-v5+
>>>>>>>>> (hassanmirza01@ubuntu)
>>>>>>>>> (gcc version 4.9 20150123 (prerelease) (GCC) ) #1 SMP PREEMPT Fri
>>>>>>>>> Jan
>>>>>>>>> 19 17:16:04 PKT 2018"
>>>>>>>>> Info: FSCK version
>>>>>>>>> from "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>>>> (gcc
>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>> #198-Ubuntu
>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>> to "Linux version 4.4.0-169-generic (buildd@lgw01-amd64-022)
>>>>>>>>> (gcc
>>>>>>>>> version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) )
>>>>>>>>> #198-Ubuntu
>>>>>>>>> SMP Tue Nov 12 10:34:23 UTC 2019"
>>>>>>>>> Info: superblock features = 0 :
>>>>>>>>> Info: superblock encrypt level = 0, salt =
>>>>>>>>> 00000000000000000000000000000000
>>>>>>>>> Info: total FS sectors = 22310912 (10894 MB)
>>>>>>>>> Info: CKPT version = 1307e4
>>>>>>>>> Info: checkpoint state = 1 : unmount
>>>>>>>>> [ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0
>>>>>>>>>
>>>>>>>>> [FSCK] Unreachable nat entries [Ok..] [0x0]
>>>>>>>>> [FSCK] SIT valid block bitmap checking [Ok..]
>>>>>>>>> [FSCK] Hard link checking for regular file [Ok..] [0x0]
>>>>>>>>> [FSCK] valid_block_count matching with CP [Ok..] [0x0]
>>>>>>>>> [FSCK] valid_node_count matcing with CP (de lookup) [Ok..] [0x0]
>>>>>>>>> [FSCK] valid_node_count matcing with CP (nat lookup) [Ok..] [0x0]
>>>>>>>>> [FSCK] valid_inode_count matched with CP [Ok..] [0x0]
>>>>>>>>> [FSCK] free segment_count matched with CP [Ok..]
>>>>>>>>> [0x1519]
>>>>>>>>> [FSCK] next block offset is free [Ok..]
>>>>>>>>> [FSCK] fixing SIT types
>>>>>>>>> [FSCK] other corrupted bugs [Fail]
>>>>>>>>> [move_curseg_info:1471] Move curseg[0] 0 -> 0 after 5000
>>>>>>>>> [move_curseg_info:1471] Move curseg[1] 1 -> 1 after 5000
>>>>>>>>> [move_curseg_info:1471] Move curseg[2] 2 -> 2 after 5000
>>>>>>>>> [move_curseg_info:1471] Move curseg[3] 3 -> 3 after 5000
>>>>>>>>> [move_curseg_info:1471] Move curseg[4] 4 -> 4 after 5000
>>>>>>>>> [move_curseg_info:1471] Move curseg[5] 5 -> 5 after 5000
>>>>>>>>>
>>>>>>>>> Done.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Trying to mount it , no success, gives
>>>>>>>>>
>>>>>>>>> F2FS-fs (sdc1): Failed to read root inode.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Any help or advice will be much appreciated.
>>>>>>>>> Keep up the great work on f2fs.
>>>>>>>>>
>>>>>>>>> Kindest Regards
>>>>>>>>>
>>>>>>>>> Stephanos Mallouris
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Linux-f2fs-devel mailing list
>>>>>>>>> [email protected]
>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>>>>>>>>
>>>>>>
>>>>
>>
>>
>>
>>
>> _______________________________________________
>> Linux-f2fs-devel mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>> .
>>
>
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