Ext3-fs Loop0 Error No Journal Found. Mounting Ext3 Or Ext2
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Ext3 Fs Error Journal Has Aborted
• Page 1 of 1 maksaraswat Posts: 44 Joined: 2011/10/14 19:00:52 ext3-fs error unable to read inode block Location: New York Contact: Contact maksaraswat Website [SOLVED] EXT3-fs error after running fsck Quote Postby maksaraswat
Detected Aborted Journal Ext4
» 2012/01/31 20:43:31 Hi,For some reason my RAID 6 mount was unmountable and I was getting the error message when I tried to mount it manually [root@server ext3-fs error (device sda6) in start_transaction journal has aborted ~]# mount /dev/sdb1 /local1/mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or other error In some cases useful info is found in syslog - try dmesg | tail or so [root@server ~]# dmesg | tail Add. Sense: Internal target failureend_request: I/O error, dev sdb, sector 806617154sd 1:0:0:0: SCSI error: ext3 fs error ext3_journal_start_sb detected aborted journal return code = 0x08000002sdb: Current: sense key: Hardware Error Add. Sense: Internal target failureend_request: I/O error, dev sdb, sector 3025928274JBD: recovery failedEXT3-fs: error loading journal.After analyzing the situation and some Googling I found out that I should do a file system check with fsck and that what I did nextroot@server ~]# fsck -f -y /dev/sdb1...after almost 5hrs it completed with following message: /dev/sdb1: ***** FILE SYSTEM WAS MODIFIED *****/dev/sdb1: 1064317/548929536 files (5.7% non-contiguous), 836681827/1097856503 blocksAfter this completion I was able to mount and I can see part (about 80-85%) of my data however the mount is READ-ONLY!!!! And I am getting following message [root@server ~]# dmesg | tailAdd. Sense: Internal target failureend_request: I/O error, dev sdb, sector 781189162EXT3-fs error (device sdb1): read_inode_bitmap: Cannot read inode bitmap - block_group = 2980, inode_bitmap = 97648641Aborting journal on device sdb1.ext3_abort called.EXT3-fs error (device sdb1): ext3_journal_start_sb: Detected aborted journalRemounting filesystem read-onlyEXT3-fs error (device sdb1) in ext3_new_inode: IO failureEXT3-fs error (device sdb1) in ext3_m
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Ext3-fs Error (device Dm-0)
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network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How http://www.centos.org/forums/viewtopic.php?t=24611 to recover data from a corrupted ext3 partition? up vote 5 down vote favorite 1 A server of mine had a drive failure of some sort which caused the OS (CentOS 5) to crash and stop working (it refuses to boot). So we put another drive with a working OS and from there we try to mount the partitions in the old drive. Most partitions mount fine except for one: the http://serverfault.com/questions/493091/how-to-recover-data-from-a-corrupted-ext3-partition /var partition, where my MySQL tables reside. When I try to mount that one, I see these errors with dmesg: sd 0:0:1:0: Unhandled sense code sd 0:0:1:0: SCSI error: return code = 0x08100002 Result: hostbyte=invalid driverbyte=DRIVER_SENSE,SUGGEST_OK sdb: Current: sense key: Medium Error Add. Sense: Unrecovered read error Info fld=0x4a47e JBD: Failed to read block at offset 9863 JBD: recovery failed EXT3-fs: error loading journal. Is there a way I can recover the data in that partition? EDIT: As requested, the output of tune2fs -l /dev/sdb2 is: tune2fs 1.39 (29-May-2006) Filesystem volume name: /var1 Last mounted on:
in CentOS, Debian / Ubuntu, File system, Hardware, Linux, RedHat and Friends, Troubleshooting, Ubuntu LinuxQ. How can I Recover a bad superblock from a corrupted ext3 partition to get back http://www.cyberciti.biz/faq/recover-bad-superblock-from-corrupted-partition/ my data? I'm getting following error:
/dev/sda2: Input/output error mount: /dev/sda2: can't read superblockHow do I fix this error? A. Linux ext2/3 filesystem stores superblock at different backup location so it http://www.softpanorama.org/Internals/Unix_filesystems/linux_ext2_ext3.shtml is possible to get back data from corrupted partition.WARNING! Make sure file system is UNMOUNTED.If your system will give you a terminal type the following command, else boot Linux system fs error from rescue disk (boot from 1st CD/DVD. At boot: prompt type command linux rescue).Mount partition using alternate superblockFind out superblock location for /dev/sda2: # dumpe2fs /dev/sda2 | grep superblock Sample output: Primary superblock at 0, Group descriptors at 1-6 Backup superblock at 32768, Group descriptors at 32769-32774 Backup superblock at 98304, Group descriptors at 98305-98310 Backup superblock at 163840, Group descriptors detected aborted journal at 163841-163846 Backup superblock at 229376, Group descriptors at 229377-229382 Backup superblock at 294912, Group descriptors at 294913-294918 Backup superblock at 819200, Group descriptors at 819201-819206 Backup superblock at 884736, Group descriptors at 884737-884742 Backup superblock at 1605632, Group descriptors at 1605633-1605638 Backup superblock at 2654208, Group descriptors at 2654209-2654214 Backup superblock at 4096000, Group descriptors at 4096001-4096006 Backup superblock at 7962624, Group descriptors at 7962625-7962630 Backup superblock at 11239424, Group descriptors at 11239425-11239430 Backup superblock at 20480000, Group descriptors at 20480001-20480006 Backup superblock at 23887872, Group descriptors at 23887873-23887878Now check and repair a Linux file system using alternate superblock # 32768: # fsck -b 32768 /dev/sda2 Sample output:fsck 1.40.2 (12-Jul-2007) e2fsck 1.40.2 (12-Jul-2007) /dev/sda2 was not cleanly unmounted, check forced. Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information Free blocks count wrong for group #241 (32254, counted=32253). Fix? yes Free blocks count wrong for group #362 (32254, counted=32248). Fix? yes Free blocks count wrong for group #368 (32254, counted=27774). Fix? ypackage atime Ext2 Attributes How to rename files with special characters in names Unix Find Tutorial Disk Repartitioning Solaris File System Structure Linux Swap filesystem Ext2 IFS For Windows FAQ Filesystems tips Humor Designed for educational purposes, the original Linux file system was limited to 64 MB in size and supported file names up to 14 characters. In 1992, the ext file system was created, and increased the file system size to 2 GB and file name length to 255 characters. However, file access, modification, and creation times were missing from file system data structures and performance tended to be low. Modeled after the Berkeley Fast File System, the ext2 file system used a better on disk layout, extended the file system size limit to 4 TB and file name sizes to 255 bytes, delivered improved performance, and emerged as the de facto standard file system for Linux environments. More information on the logging capabilities of the ext3 file system can be found in EXT3, Journaling File System by Dr. Stephen Tweedie located at http://olstrans.sourceforge.net/release/OLS2000-ext3/OLS2000-ext3.html Ext2 filesystem is supported on Windows using special drive Ext2 IFS For Windows. That can help to avoid 4G limitation of FAT32 if you need to exchange files larger then 4G, for example DVD ISO images. Features that are supported supported? Complete reading and writing access to files and directories of volumes with the Ext2 or Ext3 file system. Supports features which are specific to the I/O-system of Windows: Byte Range Locks, Directory Notfication (so the Explorer updates the view of a directory on changes within that directory), Oplocks (so SMB clients are able to cache the content of files). Allows Windows to run with paging files on Ext2 volumes. UTF-8 encoded file names are supported. The driver treats files with file names that start with a dot "." character as hidden. Supports GPT disks if the Windows version used also does. Supports use of the Windows mountvol utility to create or delete drive letters for Ext2 volumes (except on Windows NT 4.0). See also section "Can drive letters also be configured from scripts?". An evolution of the ext2 file system, the ext3 file system added logging capabilities to facilitate fast reboots following system crashes. Key features of the ext3 file system include: Forward and backward compatibility with the ext2 file system. An ext3 file system can be remounted as an ext2 file system