Unlock more space form your hard drive

tune2fs -m 1 /dev/sda6
This command changes the reserved space for privileged process on '/dev/sda' to 1 per cent.

6
By: Dhinesh
2011-12-07 10:20:01

These Might Interest You

  • This is to pull all the saved S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) information from a hard drive. This can give you an idea of the nature and extent of an issue on a failing hard drive. Show Sample Output


    1
    smartctl --attributes /dev/sda
    ShadowCat8 · 2011-10-13 20:21:03 0
  • A dear friend of mine asked me how do I copy a DVD to your hard drive? If you want to make a copy of the ISO image that was burned to a CD or DVD, insert that medium into your CD/DVD drive and (assuming /dev/cdrom is associated with your computer?s CD drive) type the following command


    8
    dd if=/dev/cdrom of=whatever.iso
    0disse0 · 2009-09-05 09:19:41 3

  • -8
    ls *.jpg | xargs -n1 -i cp {} /external-hard-drive/directory
    techie · 2013-05-09 08:33:01 2
  • This will create an exact duplicate image of your hard drive that you can then restore by simply reversing the "if" & "of" locations. sudo dd if=/media/disk/backup/sda.backup of=/dev/sda Alternatively, you can use an SSH connection to do your backups: dd if=/dev/sda | ssh user@ssh.server.com dd of=~/backup/sda.backup


    15
    sudo dd if=/dev/sda of=/media/disk/backup/sda.backup
    bandit36 · 2009-02-27 20:23:37 2

What Others Think

Use the value 0 for the -m switch to get max space for all users.
qiet72 · 341 weeks and 2 days ago
warning: don't use '-m 0' on the same filesystem as the OS (ie. where /var or /tmp is mounted). The point of reserving space for uid:0 is to make sure that system-maintenance daemons can still get work done when the users are getting "no space left on device" errors. Otherwise, it's a good idea for filesystems you occasionally mount, like portable harddrives on USB.
Mozai · 340 weeks and 5 days ago
Ah, the joys of the ext-based family of filesystems. You don't get this crap with ReiserFS, BtrFS, XFS or JFS. Any ext4 filesystem I create gets "-m 0" by default on all filesystems.
atoponce · 340 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: