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Thread: Moving directories to their own partitions

  1. #1
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    Moving directories to their own partitions

    Greetings everyone,

    After reading the Debian install and security howtos, I've decided that I should move /var, /usr and /tmp to their own partitions, using the Knoppix home directory howto as a guide. Thing is, I don't know how my fstab should look like and how big the partitions should be.

    I would like to ask for input for the layout I plan (below).

    Partition sizes:

    /tmp 50 mb (or 500?)
    /var 3 gb (or 2?)
    /usr 4 gb
    / 500 mb

    Am I on the right track? Are these partition sizes okay or are they excessive? This computer is the one I'll be using for home. In the future I do plan on setting it up to host web pages as well.

    fstab additions:

    /dev/hda9 /usr ext2 rw 0 2
    /dev/hda6 /tmp ext2 rw 0 2
    /dev/hda7 /var ext2 rw 0 2


    Do these entries look okay? Or should it be:

    /dev/hda9 /usr ext2 defaults 1 2
    /dev/hda6 /tmp ext2 defaults 1 2
    /dev/hda7 /var ext2 defaults 1 2

    I don't know what the numbers at the end mean... I just took these from various sample I found in LQ and Google.

    Any thoughts?

    - Bryan

  2. #2
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    How much space do you have to work with?

    /usr is where most of the "weight" is; make it bigger if your planning on installing more packages.

  3. #3
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    60 gigs... It's an 80 gig hard drive but Win2K has the first 20.... I also have a second 60 gig drive I just mainly use for storing mp3s, pictures and virtual CD files... and that's around 30 gigs so I have around 30 gigs more to spare on that other drive.

    I know that's a lot of room but I don't want to over do it though. I'd rather use the (spare) room for my work, my scans, mp3s and other stuff everyone else at home puts into my box.

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    Right now, I have an installfest bonanza on my box... Fedora, Knoppix, Gnoppix, Morphix... but enough of that. I just want one to get some work done.

    I was actually planning on installing Woody but then it hit me that I may just as well install Knoppix and move the partitions around.

    It also just hit me that I probably can't opt for a 500 mb / partition since the / directory is what I have to start with (can you resize that using qtparted?).

  5. #5
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    can you resize that using qtparted?
    Yes I believe so, although I have never tried it.

    60 gigs
    How much space is being used of that 60?

    Do you have a home directory for every distribution, or a single home directory used by all distributions? If you're planning on having millions of distributions on the same box, it is a good idea to have an extra partition for your home directory.

    By tha way, make sure your partitions(/usr and all that) are taggged for auto in fstab, otherwise you may have a few unexpected surprises.

  6. #6
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    Right now all of them have their own /home directories (and/or partitions).

    I was trying them out so the scheme I used sufficed... now I'm past that and just plan on having one.

  7. #7
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    Right now all of them have their own /home directories (and/or partitions).

    I was trying them out so the scheme I used sufficed... now I'm past that and just plan on having one.
    One sounds good. You may even want a second so in case something goes wrong, you'll have something to fall back on.

  8. #8
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    True, but I can always rely on the live CD can't I? I also have Knoppix on a FAT32 partition which I boot from a floppy... I think it's what you call a 'Poor man's install'.

    Right now I'm worried about resizing the / partition. I've managed to resize my swap partition before so I know qtparted can do the job... it's just that the / partition has real data on it. Hmmm...

  9. #9
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    Re: Moving directories to their own partitions

    /tmp is really tiny on both my systems, 50MB should be fine. Everything else looks Ok, however I would go with journalled filesystems for *everything* except /boot. This is what my fstab entries look like:

    Code:
    /dev/hdb1  /  reiserfs  defaults,noatime,rw 0 1
    /dev/hde11 /mnt/squid reiserfs defaults,noatime,noexec 0 0
    /dev/hda2 /mnt/extra2 ext3 defaults,noatime,noexec,rw 0 0
    /dev/hda12 /mnt/bkps  reiserfs  defaults,noatime,notail,rw 0 0
    --The two numeric entries at the end are for dump and fsck, see ' man fstab '.

    --I'd recommend two things with all that hard drive space: Dedicate a partition (20Gig?) for backups, and consider setting up a Squid proxy server.

    http://www.squid-cache.org/

    --If you want more info on that, I'll be happy to send you a copy of my config and some basic instructions.

    Quote Originally Posted by bxb32001
    Greetings everyone,

    After reading the Debian install and security howtos, I've decided that I should move /var, /usr and /tmp to their own partitions, using the Knoppix home directory howto as a guide. Thing is, I don't know how my fstab should look like and how big the partitions should be.

    I would like to ask for input for the layout I plan (below).

    Partition sizes:

    /tmp 50 mb (or 500?)
    /var 3 gb (or 2?)
    /usr 4 gb
    / 500 mb

    Am I on the right track? Are these partition sizes okay or are they excessive? This computer is the one I'll be using for home. In the future I do plan on setting it up to host web pages as well.

    fstab additions:

    /dev/hda9 /usr ext2 rw 0 2
    /dev/hda6 /tmp ext2 rw 0 2
    /dev/hda7 /var ext2 rw 0 2


    Do these entries look okay? Or should it be:

    /dev/hda9 /usr ext2 defaults 1 2
    /dev/hda6 /tmp ext2 defaults 1 2
    /dev/hda7 /var ext2 defaults 1 2

    I don't know what the numbers at the end mean... I just took these from various sample I found in LQ and Google.

    Any thoughts?

    - Bryan

  10. #10
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    Ooooooooo... thanks Dave, your the MAN!

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