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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=A0h029ly2rllY6Flf4el/df6ng6T97Q8SrUvj912AvA=; b=UM4AnM+IcCRggeLBdjK3xYSQDkqNTcZvWPPAWvJ1K1BGIu6kbm94ErJ3AbVvwyQgX3 1+3KVnW0WRdw8HnmUBChUkWr0hOtIgKx+Dt/MBuXtWaRVlyLbtvKaGCzNGljJJss1dQi 5YxGuDJg08JihjibDA2wDK31mkPp29suR7FYsI0w+VQwV7ZcwHxW09E9JjJDco4Ood9N H2AmE5SGxejeBMjdTSahLSKlT+MbyEVBHnII7m8Ls1uaGKLyjBsCsaeHVfXxPwDM1vwf F+tpxc708H1ddoX2ibohQnVHUGy5mt9NivS2Hxbed8iaZv87mMlP8pWAzcOBIBurnY2o g2ZQ== X-Gm-Message-State: APjAAAVUfrX3U7+4A1IQYA1IJ60/Gcg1HJj90IUw7Lm6HjnP5J1lHs7X nN2pKef1oyDiN5Lr14nKs/NtvQglIjpc5zlgeDc= X-Google-Smtp-Source: APXvYqyaXxfjxMwp6vG2hSKMJzHl7muoF5/LuzznIoAwfFQzxLX2/GZWQ7hk4qN8y6g22haPkyNLSy/nAza+VSSjhnE= X-Received: by 2002:a2e:3216:: with SMTP id y22mr2516839ljy.95.1576577515311; Tue, 17 Dec 2019 02:11:55 -0800 (PST) MIME-Version: 1.0 Received: by 2002:a2e:8417:0:0:0:0:0 with HTTP; Tue, 17 Dec 2019 02:11:54 -0800 (PST) In-Reply-To: <7bda6647-f4d6-216a-c771-a9023362e16b@huawei.com> References: <20191125174048.GA71634@jaegeuk-macbookpro.roam.corp.google.com> <20191126183448.GB5510@jaegeuk-macbookpro.roam.corp.google.com> <20191127182615.GB42245@jaegeuk-macbookpro.roam.corp.google.com> <20191203174302.GB41093@jaegeuk-macbookpro.roam.corp.google.com> <7bda6647-f4d6-216a-c771-a9023362e16b@huawei.com> From: Stephanos Mallouris Date: Tue, 17 Dec 2019 12:11:54 +0200 Message-ID: To: Chao Yu X-Headers-End: 1ih9pi-007Vlr-9h Subject: Re: [f2fs-dev] problem with f2fs android partition X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jaegeuk Kim , linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net 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 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 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 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 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 >> . >> > _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel