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 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
