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Thread: Partition sizes?

  1. #1

    Question Partition sizes?

    I am in the middle of trying to create partitioning for SUSE on a 300 Gb hdd, partitioned into three 100 Gb partitions and I also have Windows Vista on one and WindowsXP on another, with an empty 100 Gb partition on the 3rd. I also have a second, smaller hdd, for my downloads, documents (backups), and pictures. I do not see anything that will 'auto-size' the 3rd partition and no Help on partition sizes of root, swap, and home.

    Can anyone tell me the sizes needed? I did a search here and on Novell's site w/o success.

    Thanks,
    QBall

  2. #2
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    Default Re: Partition sizes?

    Quote Originally Posted by jqball2u View Post
    partitioned into three 100 Gb partitions... Windows Vista on one and WindowsXP on another, with an empty 100 Gb partition on the 3rd.
    I assume you want to put "openSUSE" on the 3rd. 100 Gb is nice!

    To ensure that openSUSE installs itself here, and does NOT try to install in the Vista or the WinXP partitions, what I would do is pre-format that 3rd partition to ext3 format with a free open source partitioner such as GParted Live CD, or the Parted Magic Live CD.
    * Gparted Live CD: GParted -- LiveCD
    * Parted Magic Live CD - PartedMagic - Main - Parted Magic .
    Then when you install openSUSE, the openSUSE installer should immediately notice an empty ext3 partition, and ask to install itself there.

    I recommend you let openSUSE carve up the 100 gB 3rd partition into 3 smaller partitions:
    * 2 GB swap (approx)
    * 15 GB / (slash)
    * 83 GB /home

    Not sure if I answered your question. Be certain to back up all data from your window's partitions, "just in case".

    Good luck.

  3. #3
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    Default Re: Partition sizes?

    If you're going to use the empty partition the installer will normally do the partitioning for you.
    Anyway I would do it like this first a swap ca. 1-10 GB depending on the amount of ram you have then say 10 for / and the rest for /home

    /Geoff
    Edit oldcpu beat me to it and with a better answer

  4. #4
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    Default Re: Partition sizes?

    IMHO 10 for / is a bit light -- 15 is better
    IMHO 10 is too much for swap, suggest twice the RAM size
    Leap 42.3 & 15.1 &KDE
    FYIs from the days of yore

  5. #5

    Default Re: Partition sizes?

    Just to save time I notice swerdna's post, so I deleted my post here

    that is a very good plan he put up

  6. #6

    Question Re: Partition sizes?

    Thanks ya'll! I had to go out of town for my job; windows (both) worked the night before but when I got back home a week later and booted up my pc, I could not connect for some weird reason (I brought my laptop in and it _could_ connect, so, it wasn't my DSL router), I'm sure it is either my firewall or something that I'd inadvertantly had changed (or a program had) that came into effect only after a reboot.[sigh] That brought me to install Linux...I decided to try PCLinuxOS 2007, it has a LiveCD and it connected, so, I installed it; did some tinkering with the display settings and other settings (trying to get the 3D effects in Compiz - - read about uninstalling it, then rebooting) then couldn't get it to let me log back in! [sigh] (I guess if I want to keep PCLOS, I'll have to reinstall [and 'hide' the root and home partitions, to install SUSE].

    I haven't tried SUSE in quite a while, the only copy I have is SUSE 10.0 ... I'll d/l and burn a copy of openSUSE when I get Novell's installed...maybe (if it lets me online)!?

    Thanks again, ya'll,
    QBall

  7. #7
    ab@novell.com NNTP User

    Default Re: Partition sizes?

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    Well, twice the RAM up to a certain amount. I've never found a good
    reason to have > 2 GB swap. If you ever start using that and you aren't
    on a system with huge amounts of RAM (64+GB) you are wasting space and
    won't want to use any system actually using all of that anyway. Chances
    are good you'll end up rebooting long before you fill up much more than
    that.... or you'll close every program you have running trying to find
    the culprit.

    Good luck.






    swerdna wrote:
    | IMHO 10 for / is a bit light -- 15 is better
    | IMHO 10 is too much for swap, suggest twice the RAM size
    |
    |
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  8. #8
    madgik85 NNTP User

    Default Re: Partition sizes?

    Quote Originally Posted by swerdna View Post
    IMHO 10 for / is a bit light -- 15 is better
    IMHO 10 is too much for swap, suggest twice the RAM size
    I was just wondering, in regards to the swap partition, I've heard before it should be 1.5 times the size of RAM on a system. and as above, up to 2 times as much RAM. On my system, the basic "GUI" (i should make it clear again the GUI, as there may be CLI stuff with more accurate/better measurements) utilities that come with default KDE install say that I usually (when I've checked) have a 100% free in swap... i.e. that the swap partition isn't being used. In regards to the size therefore, as a question and not as advice, shouldn't the swap partition be dictated by the intended use of the system and the RAM available. I myself have 1Gb of RAM on my laptop and have limited amount of space, I have restricted my swap partition to 1Gb as well.

    Basically what I'm trying to point out is that in todays systems, is not the swap partition a small issue when we have a ridiculous amount of RAM and that the swap partition can be smaller than say for example the 1.5 times the size of RAM a system has depending on the systems intended use.

    Again this is not advice, and is only a question. Sorry if this hijacks the tread but I thought it might be relevant to the 'size of partitions' question.

  9. #9
    ab@novell.com NNTP User

    Default Re: Partition sizes?

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    The general consensus among people who are Computer Science experts
    seems to be that swap is still important and the OS can and will use it
    intelligently to be as efficient as possible, but I have never
    completely understood the logic on that. There are many articles online
    going into the nitty gritty, so feel free to check those out. Basically
    you should have swap and on my systems I don't go over 2 GB ever because
    I won't enjoy the pathetic performance if my system really needs to dive
    into that. The percentage-of-RAM stuff worked for a long time but I
    think is mostly obsolete on new systems. I'm not going to go with
    1.5-2.0x my big machine's RAM because that'd be up to 16 GB. Even my
    laptop has 4 GB RAM in it. If I ever have that much RAM being used it's
    because of VMs and swapping those will still be horrible on performance.

    So anyway, I do 2 GB on all my systems unless they are VMs with low RAM,
    then I usually do 512MB or 1GB depending on the system's size.... bigger
    if it's bigger and I plan on actually using all the RAM available and
    may need something to help out via swap.

    Good luck.





    madgik85 wrote:
    | swerdna;1817206 Wrote:
    |> IMHO 10 for / is a bit light -- 15 is better
    |> IMHO 10 is too much for swap, suggest twice the RAM size
    |
    | I was just wondering, in regards to the swap partition, I've heard
    | before it should be 1.5 times the size of RAM on a system. and as
    | above, up to 2 times as much RAM. On my system, the basic "GUI" (i
    | should make it clear again the GUI, as there may be CLI stuff with more
    | accurate/better measurements) utilities that come with default KDE
    | install say that I usually (when I've checked) have a 100% free in
    | swap... i.e. that the swap partition isn't being used. In regards to
    | the size therefore, as a question and not as advice, shouldn't the swap
    | partition be dictated by the intended use of the system and the RAM
    | available. I myself have 1Gb of RAM on my laptop and have limited
    | amount of space, I have restricted my swap partition to 1Gb as well.
    |
    | Basically what I'm trying to point out is that in todays systems, is
    | not the swap partition a small issue when we have a ridiculous amount
    | of RAM and that the swap partition can be smaller than say for example
    | the 1.5 times the size of RAM a system has depending on the systems
    | intended use.
    |
    | Again this is not advice, and is only a question. Sorry if this hijacks
    | the tread but I thought it might be relevant to the 'size of partitions'
    | question.
    |
    |
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  10. #10

    Default Re: Partition sizes?

    As for swap size if you have 2 or more gigs of ram make the partition the same size of ram.
    That to allow proper suspend to disk.
    Really, in modern systems I don't find having 4GB of swap a waste of space.
    And in older systems they'd probably have way less ram and a smaller hard drive so the proportion is more or less kept.

    And as swerdna said, 15GB for root at least. Better to have some spare room there than eventually having it full and not being able to boot to the system. (You know, the system needs to write some temp files/logs on boot up).
    It is abhorrent the spiritual greed of those that knowing something, do not seek the transfer of such knowledge.

    Miguel de Unamuno - Writer (1864-1936)

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