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Old 02-11-2005, 09:59 PM   #1
Registered: Feb 2005
Location: San Diego
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root partition size

If I am planning on creating seperate partitions for /, /usr, and /home, am I correct in assuming that the root partition will not need to be very large (since /usr will hold all my programs)? What is a good size for a root partition? If it matters Im installing slackware.

Old 02-11-2005, 10:52 PM   #2
Registered: Jun 2004
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hmm. It kinda depends on what you use. i use suse 9.1 and have tons of things installed
my /usr takes up 2.1 gigs but its in my / which is 10 gigs and 7.5 gigs used. my home folders are a seperate partition. my guess is slackware will be lighter than suse.
Old 02-12-2005, 01:58 AM   #3
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my /usr takes up 2.1 gigs but its in my / which is 10 gigs and 7.5 gigs used.
That's because you only have two partitions. Root's partition doesn't need to be large, but you'll have to put some thought into your partition scheme. Mine looks like...
Filesystem -----Size-----Used----Avail -----Used%---- Mounted on
/dev/hda8 ----- 2.8G ----- 107M ----- 2.7G ----- 4% ---- /
/dev/hda5 ----- 126M ----- 37M ----- 90M ----- 29% ---- /boot
/dev/hda6 ----- 4.7G ----- 49M ----- 4.7G ----- 2% ----/var
/dev/hda7 ----- 19G ----- 431M ----- 19G ----- 3% ---- /home
/dev/hda9 ----- 47G ----- 1.7G ----- 45G ----- 4% ---- /usr
/dev/hda10 ----- 957M ----- 33M ----- 925M ----- 4%---- /tmp
/dev/hda11----- 19G ----- 5.8G ----- 13G ----- 32% ---- /mp3
/dev/hda1 ----- 25G ----- 11G ----- 14G ----- 44% ---- /Windows

Last edited by Linux~Powered; 02-12-2005 at 02:07 AM.
Old 02-13-2005, 09:07 AM   #4
Registered: Nov 2004
Location: Turku, Finland
Distribution: Debian, Ubuntu, Gentoo
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When choosing the / -partition size, remember that it will contain _everything_ that is not mounted elsewhere.

So, if you need lots of temporary disk space (DVD-burning for example), make sure you have /tmp on a separate partition or large / -partition. Otherwise you will run out of disk space.

Also if you have many users or lots of personal data, make the "/" large, or put "/home" on another partition. I've run into lots of troubles due to small "/".

It is however always possible to make symbolic links if you're running out of diskspace. For example, if "/" is filling up due to large "/tmp", you can link /tmp to /usr/tmp or whereever you find more space.
Old 02-14-2005, 06:06 AM   #5
Registered: Feb 2005
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Thanks for the replies. I realized this is definitely something to expirement with. Ive got the root partition sitting pretty at 2 gigs, with everything else mounted elsewhere (/tmp, /var, /opt, /usr, /home)

One thing that I dont understand though, is whether or not all programs are by default installed in /usr. It seems that some of them install right in the folder with the src. So how do I direct a program to install in /usr if that is not the default? (put the src folder in /usr ?
Old 02-14-2005, 06:50 AM   #6
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IMO unless you know what sizes of partition you need, you are better just having / and /home (and swap)


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