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-=Blade=-
n00b
Joined: 18 Nov 2002
Posts: 20
Location: Brisbane - Australia
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 Posted: Wed Feb 11, 2004 2:07 am Post subject: Regain more harddrive space on ext2/3! |
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The default settings for a ext{2,3} file system is to reserve 5% of the file system so that only root can access it.
This was great back in the day when user accounts filled a drive to the max and everything was on one partition - not so when we're lean and mean and want some extra space.
To change your reserved block count to something a little more sensible simply do this.
| Code: | | #tune2fs -m 1 /dev/hda3 |
Where /dev/hda is the partition you want to change to 1% of reserved space. On a 1gig partition, you're looking at about 60Meg free increase. Of course it's expotential to larger drives, so a 80 gig partition might regain 5gig of space.
To check out what your file system is doing, simply use tune2fs again.
| Code: | | #tune2fs -l /dev/hda3 |
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Borgasm
n00b
Joined: 17 Apr 2003
Posts: 9
Location: UConn
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| Posted: Wed Feb 11, 2004 2:59 pm Post subject: |
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I had been wondering for a long time why my drive said 10000 blocks, 9000 used, 123 free.....
Great tip... |
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Holly
n00b
Joined: 08 Mar 2003
Posts: 67
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| Posted: Thu Feb 12, 2004 2:22 pm Post subject: |
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| does reiserfs also reserve space for system files? |
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odessit
Apprentice
Joined: 01 Feb 2004
Posts: 180
Location: Current Residency - Server Room - Caution - Frostbite Imminent!
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| Posted: Thu Feb 12, 2004 3:47 pm Post subject: |
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| cool, regained ~ 200 megs |
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snakattak3
Guru
Joined: 11 Dec 2002
Posts: 468
Location: Seattle
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| Posted: Thu Feb 12, 2004 4:40 pm Post subject: |
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Awesom!!! I was wondering where some of my hard drive space went. Before... | Code: | /dev/md0 [##########*************************] 29% ( 13G) /
/dev/md1 [#######****************************] 21% ( 98G) /home
none [###################################] 100% ( 0) /mnt/dvd
none [***********************************] 0% (253M) /dev/shm |
and after..
| Code: | /dev/md0 [##########*************************] 29% ( 13G) /
/dev/md1 [#######****************************] 20% (104G) /home
none [###################################] 100% ( 0) /mnt/dvd
none [***********************************] 0% (253M) /dev/shm |
Looks like i've freed up about 6 gigs on /dev/md0. Its around an 140 gig raid partition. Thanks.
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JoeykhCom
Tux's lil' helper
Joined: 18 Jan 2004
Posts: 81
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| Posted: Thu Feb 12, 2004 9:58 pm Post subject: |
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| Cool |
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-=Blade=-
n00b
Joined: 18 Nov 2002
Posts: 20
Location: Brisbane - Australia
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| Posted: Fri Feb 13, 2004 3:10 am Post subject: |
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| Holly wrote: | | does reiserfs also reserve space for system files? |
As far as I know, Reiserfs has no reserved space at all (apart from it's own overhead).
You can safely change the percentage of a ext2/3 filesystem to 0 as well. The only reason it's there is to help you out if the filesystem is full and you want to move stuff/etc. |
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wishkah
Guru
Joined: 09 May 2003
Posts: 441
Location: de
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| Posted: Sun Feb 15, 2004 9:57 am Post subject: |
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Thanks for the hint, dude, that gave me 2 more gigs on my /  I guess you can use tune2fs savely with ext3 (was confused at first cause I couldn't find tune3fs. *sigh*  )
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cylgalad
Veteran
Joined: 18 Apr 2003
Posts: 1327
Location: France
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| Posted: Sun Feb 15, 2004 11:56 am Post subject: |
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Ah ! Now I finally understand why an ext2/3 partition could fill up more than it should.
Thanks for that tip, 700 MB "freed" ! |
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-=Blade=-
n00b
Joined: 18 Nov 2002
Posts: 20
Location: Brisbane - Australia
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| Posted: Sun Feb 15, 2004 11:51 pm Post subject: |
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| littleendian wrote: | | Thanks for the hint, dude, that gave me 2 more gigs on my / I guess you can use tune2fs savely with ext3 (was confused at first cause I couldn't find tune3fs. *sigh* ) |
Yes Ted T'so said 'a little bit of forethought goes a long way' whilst he was designing the Ext3 filesystem (which is almot identical to the Ext2 filesystem). That way you get all the benefits of a tried and true operating system. |
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