Dear All,
I have made a fresh test and trial.
Please see my actions.
1. First i disk dump the original image file to a new hard drive
partition i first created (20GB)
using the command:
sudo dd if=mmcblk0p49.raw bs=4096 status=progress of=/dev/sdc1.
2. Downloaded using git and patching main.c per your instructions.
3. Make the patched f2fs-tools.
4. Put the new drive with the partition using USB, regognized as sdc , sdc1.
5. Go this result on trying the dump.f2fs
elementary@elementary:/media/elementary/mysparky/work_on_f2fs$ sudo
dump.f2fs -i3 /dev/sdc1
Info: [/dev/sdc1] Disk Model: HDWJ110
Info: Segments per section = 1
Info: Sections per zone = 1
Info: sector size = 512
Info: total sectors = 42008576 (20512 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 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
16:19:09 UTC 2018"
to "Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
16:19:09 UTC 2018"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 22310912 (10894 MB)
Info: CKPT version = 1307e4
[print_node_info: 267] Node ID [0x0:0] is inode
i_mode [0x 0 : 0]
i_advise [0x 0 : 0]
i_uid [0x 0 : 0]
i_gid [0x 0 : 0]
i_links [0x 0 : 0]
i_size [0x 0 : 0]
i_blocks [0x 0 : 0]
i_atime [0x 0 : 0]
i_atime_nsec [0x 0 : 0]
i_ctime [0x 0 : 0]
i_ctime_nsec [0x 0 : 0]
i_mtime [0x 0 : 0]
i_mtime_nsec [0x 0 : 0]
i_generation [0x 0 : 0]
i_current_depth [0x 0 : 0]
i_xattr_nid [0x 0 : 0]
i_flags [0x 0 : 0]
i_inline [0x 0 : 0]
i_pino [0x 0 : 0]
i_dir_level [0x 0 : 0]
i_ext: fofs:0 blkaddr:0 len:0
i_addr[ofs] [0x 0 : 0]
i_addr[ofs + 1] [0x 0 : 0]
i_addr[ofs + 2] [0x 0 : 0]
i_addr[ofs + 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]
Invalid (i)node block
Info: checkpoint state = 4 : compacted_summary sudden-power-off
Done: 0.024776 secs
6. then tried twice to sudo fsck.f2fs /dev/sdc1 and on the second time i think
the patched code work due to giving :
sudo fsck.f2fs /dev/sdc1
Info: [/dev/sdc1] Disk Model: HDWJ110
Info: Segments per section = 1
Info: Sections per zone = 1
Info: sector size = 512
Info: total sectors = 42008576 (20512 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 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
16:19:09 UTC 2018"
to "Linux version 4.15.0-36-generic (buildd@lgw01-amd64-031) (gcc
version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #39-Ubuntu SMP Mon Sep 24
16:19:09 UTC 2018"
Info: superblock features = 0 :
Info: superblock encrypt level = 0, salt = 00000000000000000000000000000000
Info: total FS sectors = 22310912 (10894 MB)
Info: CKPT version = 1307e4
Info: Checked valid nat_bits in checkpoint
Info: checkpoint state = 281 : allow_nocrc nat_bits unmount
[ASSERT] (is_root_nat_corrupted: 610) --> nid[0x3] ino is 0
[ASSERT] (sanity_check_nid: 392) --> 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]
So now the checkpoing changed to
Info: checkpoint state = 281 : allow_nocrc nat_bits unmount
from
Info: checkpoint state = 4 : compacted_summary sudden-power-off
so i believe there is some progress...
7. Now when i try to mount the sdc1 partiotion , using dmesg i get the
following
information
[ 5553.260078] sdc: sdc1
[ 5563.337756] sdc: sdc1
[ 5606.821439] F2FS-fs (sdc1): Found nat_bits in checkpoint
[ 5606.965813] F2FS-fs (sdc1): Found nat_bits in checkpoint
And unfortunatly i am unable to Mount It.
Please advice on further actions and steps.. i think we are getting somewhere.
Regarding previous email the correct information is
[ASSERT] (sanity_check_nid: 418) --> nid[0x3] nat_entry->ino[0x3]
> footer.ino[0x0]
Regards
Stephanos M.
On 1/8/20, Chao Yu <yuch...@huawei.com> wrote:
> Hi Stephanos,
>
> On 2020/1/7 22:09, Stephanos Mallouris wrote:
>> Dear Yu,
>>
>> Thanks for the reply, i did patch and compile the f2fs-tools.
>> I run two cases
>> 1. sudo ./fsck.f2fs /media/elementary/eengineering/mmcblk0p49.raw
>> --dry-run -a -y
>>
>> Results attached in firest log file
>>
>> 2. sudo ./fsck.f2fs /media/elementary/eengineering/mmcblk0p49.raw
>> --dry-run -a -y
>
> It looks running fsck two times still didn't repair the partition.
>
>>
>> Results attached in second log file
>>
>> Please have a look, when possible, assistance is much appreciated.
>>
>> Attaching also the main.c patched file.
>
> I found the output is not the same as you reported previously:
>
> Previous:
> [ASSERT] (sanity_check_nid: 362) --> nid[0x3] ino is 0
>
> Now:
> [ASSERT] (sanity_check_nid: 418) --> nid[0x3] nat_entry->ino[0x3]
> footer.ino[0x0]
>
> Did you run fsck on original backuped image? or we have ran fsck several
> times
> on current image before run patched fsck?
>
> And I didn't find debug message such as "Relink root inode, blkaddr: 0x%x",
> That means my patch didn't fix anything on your current image, fsck still
> failed
> due to sanity check find another inconsistency on root inode ( which needs
> another
> patch to fix maybe...).
>
> Could you dump root inode info on current image?
>
> dump.f2fs -i 3 /media/elementary/eengineering/mmcblk0p49.raw
>
> Thanks,
>
>>
>> Regards
>>
>> stephanos m
>>
>>
>>
>> On 12/31/19, Chao Yu <yuch...@huawei.com> wrote:
>>> Hi,
>>>
>>> Sorry for the delay.
>>>
>>> I figure out a patch to handle your case, w/ this patch, fsck will try
>>> to
>>> search
>>> root inode and once it finds the target, it will relink it to its nat
>>> entry,
>>> after this, all following check in fsck could be executed later.
>>>
>>> If you still keep that corrupted image, could you please have a try w/
>>> this
>>> patch?
>>>
>>> [PATCH] fsck.f2fs: lookup and relink root inode
>>>
>>> Thanks,
>>>
>>> On 2019/12/17 18:11, Stephanos Mallouris wrote:
>>>> 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 <yuch...@huawei.com> 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 <jaeg...@kernel.org> 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 <jaeg...@kernel.org> 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 <jaeg...@kernel.org> 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
>>>>>>>>>>>>> Linux-f2fs-devel@lists.sourceforge.net
>>>>>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Linux-f2fs-devel mailing list
>>>>>> Linux-f2fs-devel@lists.sourceforge.net
>>>>>> https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
>>>>>> .
>>>>>>
>>>>>
>>>> .
>>>>
>>>
>
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