Bad magic number in superblock while trying to open devsda2 hello, so ive a linux partition, and then i wanted to install a windows copy. If the device is valid and it really contains an ext2ext3ext4 filesystem and not swap or ufs or something else, then the. I traced the mount of this device super on, entry allow, exit allow from each node and the device is mounted ok. Why dumpe2fs returns bad magic number in superblock while. How to resolve bad magic number in superblock error ux. Attempting to extend filesystem in rhel 7 returns bad magic number in superblock solution verified updated 20151028t14.
The superblock could not be read or does not describe a correct ext2 filesystem. In short, i have a ocfs2 cluster with 3 nodes and a shared storage lun. Bad magic number in inode every time mounting specific. Bad magic number in inode while trying to determine heartbeat. Bad magic number in superblock while opening device dev. Ocfs2users cant mount ocfs2 filesytem next message. Bad magic number in super block while trying to open devsdel devsdel. Does the device have a partition table and a ocfs filesystem. Ocfs2 users ocfs2 bad magic number messages sorted by. There is a backup superblock every 8192 blocks if im correct.
Ocfs2 users cant mount ocfs2 filesytem next message. Bad magic number in super block while trying to open devsda2 what i think it happened, is that after installing windows your partitions numbers got twisted a bit. Jan 05, 2018 compute node disk expansion resulted in mount. Hi, after installing a new linux box i got those errors when running a simple dump. Bad magic number in super block while trying to open devhda8. Bad magic number in superblock while opening devmappermpath3p1 if you need more info, please let me know. Ocfs2 bad magic number oracle linux database users. Attempting to extend filesystem in rhel 7 returns bad magic number in super block solution verified updated 20151028t14.
Bad magic number in superblock while trying to open yourvolumegroup couldnt find valid filesystem superblock. Bad magic number in superblock while trying to open devsdd the superblock could not be read or does not describe a valid ext2ext3ext4 filesystem. Checking the image for errors gives what looks like a similar error. Bad magic number in superblock while trying to open devrhelroot couldnt find valid filesystem superblock. These are unique id numbers that the system gives to a drive. If the device is valid and it really contains an ext2 filesystem and not swap or ufs or something else, then the superblock is corrupt, and you might try running e2fsck with an alternate. Bad magic number in super block while trying to open devsda2 hello, so ive a linux partition, and then i wanted to install a windows copy. I was worried about a message that said bad magic number in superblock and superblock invalid. Why dumpe2fs returns bad magic number in superblock. Bad magic number in superblock while opening device vmware workstation 8. I dont understand why you say i have another problem. Bad magic number in superblock while trying to open devsdel devsdel.
Attempting to extend filesystem in rhel 7 returns bad. Ocfs2users ocfs2 bad magic number messages sorted by. Bad magic number in super block while trying to open devsdd the superblock could not be read or does not describe a valid ext2ext3ext4 filesystem. Make sure your superblock is the problem, by starting a filesystem check, replacing xxx with your partition name. Bad magic number in superblock while trying to open devloop1 comment 7. In the above shown example the number 32768 i have used is the location of the first backup copy of the superblock. Checking the image for errors gives what looks like a. Expanding root partition bad magic number in superblock. What you have to do is to edit etcfstab, and check out your linux and swap partitions mounting entries, i believe you just have to change the number of devsda number. Bad magic number in superblock while opening device devemcpowera1 failed email. Filefrag tells you how fragmented a file is and e2frag will defragment it. A while ago, ubuntu changed the way it records drives details, whereas it use to use devsdx to refer to a drive with x being az it now uses uuids instead. Bad magic number in superblock while trying to open devsda5 the superblock could not be read or does not describe a valid ext2ext3ext4 filesystem.
Ocfs2users cant mount ocfs2 filesytem wang steven swang at. Bad magic number in superblock while trying to open devsdb devsdb. Usually, the bad magic number happens when the super block is corrupted, and i have. Bad magic number in super block while trying to open devsdb devsdb. Bad magic number in superblock while trying to open devvdc1 couldnt find valid filesystem superblock. Xfs general bad primary superblock bad magic number. Bad magic number in superblock while opening filesystem. Bad magic number in superblock while trying to open devloop1 fsck. Bad magic number in super block while trying to open devloop0 couldnt find valid filesystem superblock. From my understanding defragmenting files is not really needed in linux, but out of curiosity was googling on this subject and found these commands and was playing around with them. In short, i have a ocfs2 cluster with 3 nodes and a shared.
Perform file system check using e2fsck just fire command e2fsck b and answer with y in case system asks. Warning filesystem uses v1 dirs,limited functionality provided. Alternatively you can also use sb option available in mount command. Tecgeeks news november 28, 2017 disk, fdisk, linux. How to recover corrupted superblock bad magic number in superblock on oracle vm repository or poolfs doc id 2127003. Bad magic number in superblock while trying to open devloop0 couldnt find valid filesystem superblock.
Ocfs2 users ocfs2 bad magic number eric ren zren at mon may 23 23. But this case is different, i cannot fix the problem by simply replacing the super block, thus im out of ideas. Jul 15, 2009 a while ago, ubuntu changed the way it records drives details, whereas it use to use devsdx to refer to a drive with x being az it now uses uuids instead. Bad magic number in superblock while opening device devsdb1. The superblock could not be read or does not describe a. Bad magic number in superblock while trying to open devhda1. Bad magic number in superblock while trying to open devmmcblk0p1. Ocfs2users ocfs2 bad magic number eric ren zren at mon may 23 23. How to resolve bad magic number in superblock error. Bad magic number in superblock while opening device devsda3 january 5, 2018 pieter van puymbroeck comments 0 comment before christmas 2017 i had the honour to expand the compute node storage for a virtualised exadata. But according to you this is because the swap partition does not have a file system and this is normal. Attempting to extend filesystem in rhel 7 returns bad magic.
Bad magic number in superblock while opening device devsdb. Bad magic number in superblock while trying to open devsdb1. Bad magic number in superblock while trying to open. What you have to do is to edit etcfstab, and check out your linux and swap partitions mounting entries, i believe you just have to change the number of devsdanumber.
Bad magic number in superblock while trying to open devhda8. Ocfs2 users cant mount ocfs2 filesytem wang steven swang at. Bad magic number in superblock while trying to open devsda2 what i think it happened, is that after installing windows your partitions numbers got twisted a bit. Bad magic number in superblock while trying to open devsda couldnt find valid filesystem superblock. Usually, the bad magic number happens when the super block is corrupted, and i have experienced several similar cases before, which can be solved quickly by using backup super blocks. How to resolve bad magic number in superblock error ux techno.
It causes mke2fs to reinitialize the superblock and group descriptors, while not touching the inode table and the block and inode bitmaps. If the device is valid and it really contains an ext2ext3ext4 filesystem and not swap or ufs or something else, then the superblock is corrupt, and you might try running e2fsck. Bad magic number in super block while opening filesystem dump. Ocfs2 bad magic number oracle linux oracle software suite. Bad magic number in superblock while opening filesystem dump. The dumpe2fs returns bad magic number in super block while trying to open devsdx. Expanding root partition bad magic number in superblock while trying to open devmmcblk0p2. Bad magic number in super block while trying to open devrhelroot couldnt find valid filesystem superblock. Once the above command succeeds, you can retry mounting the file system. If the device is valid and it really contains an ext2 filesystem and not swap or ufs or something else, then the superblock is corrupt, and you might try running e2fsck with an. Bad magic number in superblock while opening devmappermpath3p1 if you need more info, please let. Bad magic number in superblock while trying to open dev. Bad magic number in super block while trying to open devsda5 the superblock could not be read or does not describe a valid ext2ext3ext4 filesystem.
675 699 611 1575 925 959 807 120 1434 677 862 600 1545 131 941 913 891 662 877 335 1445 1091 734 1270 1324 354 447 452 1134 587 436 246 501 1596 366 1362 526 565 18 179 164 948 1476 98 1425