Dosfsck Input/output Error
communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About ls reading directory . input/output error in linux Us Learn more about Stack Overflow the company Business Learn more about hiring input/output error linux developers or posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question fsck vfat and answer site for Ubuntu users and developers. 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 testdisk up and rise to the top How do I repair a Fat 32 Filesystem Partition “input/output error” up vote 1 down vote favorite Some how the partition (Dev/sda2) partition got deleted. So I use TestDisk to bring it back... The first time I did it it erase the whole hard drive... The second time it did restore the partition which is good. But now it is giving me a error massage when I try to open it in Files(Gnome). IF you need it in text here: Error when getting information for file '/media/ubuntu-gnome/Backup/User': Input/output error partitions error-handling fat32 share|improve this question asked Jun 7 '14 at 16:23 MathCubes 2,20462650 check dmesg after getting this error for more details. –psusi Jun 7 '14 at 17:34 add a comment| 2 Answers 2 active oldest votes up vote 0 down vote Try running sudo dosfsck -r a few times and see if that fixes things. Good luck. share|improve this answer answered Jun 7 '14 at 16:40 ubfan1 5,39331322 add a comment| up vote 0 down vote Repair the file system It seems your file system is corrupted. You can attempt to fix it by executing this command in your Terminal: sudo fsck -y /dev/sda2 Replace /dev/sda2 with the appropriate partition you want to fix. share|improve this answer answered Jun 7 '14 at 16:41 Naveen 4,17642956 fsck from util-linux 2.20.1 e2fsck 1.42.9 (4-Feb-2014) ext2fs_open2: Bad magic number in super-block fsck.ext2: Superblock invalid, trying backup blocks... fsck.ext2: Bad magic number in super-block while trying to open /dev/sda2 The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesy
ext3, ext4, etc.). Depending on when was the last time a file system was checked, the system runs the fsck during boot time to check whether the filesystem is in consistent state. System administrator could also run it manually when there is a problem with the filesystems. Make sure to execute the fsck on an unmounted file systems to avoid any data corruption issues. This article explains 10 practical examples on how to execute fsck command to troubleshoot and fix any filesystem errors. 1. Filesystem Check on a Disk Partition First, view all http://askubuntu.com/questions/478124/how-do-i-repair-a-fat-32-filesystem-partition-input-output-error the available partitions on your system using parted command as shown below. # parted /dev/sda 'print' Number Start End Size Type File system Flags 1 1049kB 106MB 105MB primary fat16 diag 2 106MB 15.8GB 15.7GB primary ntfs boot 3 15.8GB 266GB 251GB primary ntfs 4 266GB 500GB 234GB extended 5 266GB 466GB 200GB logical ext4 6 467GB 486GB 18.3GB logical ext2 7 487GB 499GB 12.0GB logical http://www.thegeekstuff.com/2012/08/fsck-command-examples fat32 lba You can check a specific filesystem (for example: /dev/sda6) as shown below. # fsck /dev/sda6 fsck from util-linux 2.20.1 e2fsck 1.42 (29-Nov-2011) /dev/sda6: clean, 95/2240224 files, 3793506/4476416 blocks The following are the possible exit codes for fsck command. 0 - No errors 1 - Filesystem errors corrected 2 - System should be rebooted 4 - Filesystem errors left uncorrected 8 - Operational error 16 - Usage or syntax error 32 - Fsck canceled by user request 128 - Shared-library error 2. Fsck Command Specific to a Filesystem Type fsck internally uses the respective filesystem checker command for a filesystem check operation. These fsck checker commands are typically located under /sbin. The following example show the various possible fsck checker commands (for example: fsck.ext2, fsck.ext3, fsck.ext4, etc.) # cd /sbin # ls fsck* fsck fsck.cramfs fsck.ext2 fsck.ext3 fsck.ext4 fsck.ext4dev fsck.minix fsck.msdos fsck.nfs fsck.vfat fsck command will give you an error when it doesn't find a filesystem checker for the filesystem that is being checked. For example, if you execute fsck over a ntfs partition, you'll get the following error message. There is no fsck.ntfs under /sbin. So, this gives the following error message. # fsck /dev/sda2 fsck f
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn http://unix.stackexchange.com/questions/87403/input-output-error-that-come-back-just-fine-how-to-make-sure-it-doesnt-happen more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question http://www.claudiokuenzler.com/blog/325/rm-cannot-remove-input-output-error-ext4-fs and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The input/output error best answers are voted up and rise to the top input/output error that come back just fine. How to make sure it doesn't happen again? [duplicate] up vote 2 down vote favorite This question already has an answer here: -bash: /usr/sbin/useradd: Input/output error — What does this mean? 1 answer root@host [/backup/2013-08-15/accounts]# cd /home1 root@host [/home1]# ls /bin/ls: reading directory .: Input/output error root@host [/home1]# Suddenly /home1 doesn't work. It dosfsck input/output error used to work just fine. Yes I put one of my most demanding sites there. Then I started getting these errors. Is it possible that the disk can't handle the load? My provider insist that it's user's error though Actually, I think this was a case of user error. Your hard drives are all fine, and I've confirmed I am able to read and write files to all mounted partitions (/home, /home1, /home2, /home3 and /home4). I did need to run an fsck to fix several errors on your filesystem, and it also appears you have a whole load of unresolved links leading all over your system (fsck tried to clear some of these manually, all may not have been fixed). This system appears to have been very poorly maintained, however as of right now all disks and all filesystems are accessible. I will put this system back online shortly and let you know when I've confirmed it is back online. So we have a system that's working just fine for now and then suddenly crash for no reason. After doing some check my host provider says that NOTHING is wrong with the server. I got my server back and yea everything is working. How can this happen? So after
VMware Windows Wyse rm: cannot remove due to Input/output error (EXT4-fs error) Saturday - Mar 2nd 2013 - by Claudio Kuenzler - (1 comments) On some servers I use rsnapshot as a backup method. It's fast, easy to manage and reliable. But a backup a few days ago returned the following error in the daily backup log: echo 5190 > /var/run/rsnapshot.pid /bin/rm -rf /backup/rsnapshot/daily.9/ /bin/rm: cannot remove `/backup/rsnapshot/daily.9/localhost/home/mail/web98p1/Maildir/cur/1359872706S=12695,W=12855:2,S': Input/output error /bin/rm: cannot remove `/backup/rsnapshot/daily.9/localhost/home/mail/web98p8/Maildir/cur/1360095843S=4225,W=4321:2,S': Input/output error /bin/rm: cannot remove `/backup/rsnapshot/daily.9/localhost/var/www/web136/files/g2data/cache/entity/3/2': Input/output error ---------------------------------------------------------------------------- rsnapshot encountered an error! The program was invoked with these options: /usr/bin/rsnapshot daily [Backflash] This particular server suffered a disk defect in the past days and the raid recovery had some issues to resynchronize. I removed the defect disk out of the raid array and told the guys in the data center to replace the defect disk. And here's comes the problem: They made a big mistake by making a short SMART test which resulted in no errors and decided, the disk was good and rebooted the server. As the server booted, the Kernel recognized two disks with each a raid configuration on them. But guess what? mdraid tells the kernel that these disks are not in the same raid (because I previously removed the defect disk, remember?). So by accident, the kernel took the defect disk, created a weird new raid array (called md127) and mounted the filesystems on it while the good disk was just mounted as read-only block device. During a day or so the server was running like this until I realized what happened. I then hoped I could at least resynchronize the defect disk with the good disk, so the new data would be synchronized. But due to too many I/O errors from the bad disk (because the disk is bad, told ya!!) the raid recovery failed at around 20%. So some data was resynchronized, some not. Some probably even contain invalid data as the disk w