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] 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