In Ubuntu 12.04 I was used to run the 'Disk Utility' and choose 'Check Filesystem'; its subtitle showed also 'and repair'. In Ubuntu 16.04 I have only found the 'Disks' utility that looks similarly but has no 'Check Filesystem' option, even for the superuser.
asked Sep 7, 2017 at 21:26
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2Great... gnome continues to remove useful features...– psusiSep 8, 2017 at 1:24
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1in Ubuntu 18.04, the 'Disks' utility has those options again (Check Filesystem and Repair Filesystem).– Georg JungJun 24, 2018 at 14:56
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2 Answers
To check the file system on your Ubuntu partition...
- boot to the GRUB menu
- choose Advanced Options
- choose Recovery mode
- choose Root access
- at the # prompt, type
sudo fsck -f / - repeat the
fsckcommand if there were errors - type
reboot
If for some reason you can't do the above...
- boot to a Ubuntu Live DVD/USB
- start
gpartedand determine which /dev/sdaX is your Ubuntu EXT4 partition - quit
gparted - open a
terminalwindow - type
sudo fsck -f /dev/sdaX# replacing X with the number you found earlier - repeat the fsck command if there were errors
- type
reboot
answered Sep 7, 2017 at 23:30
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Now I urgently need to repair partitions at an USB disk and at a flash disk. I am in a great time span and I can not afford a mistake by inventing the right commands. I beg you to tell me the commands for a partition mounted as /media/my_user/kus. I hope I can still find the system identifier for the partition. Thanks! Oct 25, 2017 at 6:36
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I can also use Ubuntu 12.04 at an old Pentium IV PC. Some things still work OK there. Which of it do you see as a more safe? Thanks! Oct 25, 2017 at 6:55
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@TomášPečený the instructions that I gave should work in most situations. What part are you having difficulty with? Your USB disk, if it's an external, is probably /dev/sdb{something}, so the fsck command would be
sudo fsck -f /dev/sdb{something}.– heynnemaOct 25, 2017 at 13:16 -
@TomášPečenýfsck is for ext4 linux partitions. You're trying to repair a fat partition. Either you've selected the wrong partition number to fix, or you're trying to repair a problem that requires
chkdskunder Windows to repair.– heynnemaOct 26, 2017 at 1:14 -
Sorry, I tried to write, than hesitated how to format, but the page took it as a comment. It appears that all is OK as I will write in further at least two comments Oct 26, 2017 at 1:46
Just some comments:
- To enter the GRUB menu press and hold SHIFT while booting
- In Recovery Mode better to choose "fsck - Check all file systems", see picture.
Great description here: How to Use ‘fsck’ to Repair File System Errors in Linux