Results 1 to 6 of 6

Thread: Installing ubuntu 11.10 on external hard drive

  1. #1
    Join Date
    Mar 2012
    Beans
    2

    Installing ubuntu 11.10 on external hard drive

    I have a freshly formatted external hard drive and I want to install ubuntu 11.10 on it. I current have ubuntu installed on my win 7 hard drive with wubi and I do not want to really use it to fully explore ubuntu since it's not really designed to be used that way.

    I have searched around instructions and haven't found a clear cut answer on how to do a clean install of ubuntu 11.10 on a external drive. I do not want to risk messing up the mbr on my main internal drive. I am downloading the iso file for ubuntu 11.10 right now and hope to get a full install running soon...

  2. #2
    Join Date
    Jan 2011
    Beans
    16

    Re: Installing ubuntu 11.10 on external hard drive

    Hi,
    Check out this illustrated tutorial as an example:
    http://www.linuxbsdos.com/2012/02/20...on-at-the-end/

    You don't have to have a /boot partition if you don't want to.
    You could just have / and swap.
    Or /, swap and /home.
    Up to you.
    Last edited by Brizvegan; March 29th, 2012 at 07:13 AM.

  3. #3
    Join Date
    Nov 2009
    Location
    North Vancouver
    Beans
    Hidden!
    Distro
    Edubuntu 14.04 Trusty Tahr

    Re: Installing ubuntu 11.10 on external hard drive

    Here's a guide... it's based on 10.10 Maverick Meerkat but the installer hasn't changed significantly and the guide is very thorough: http://members.iinet.net.au/~herman546/p24.html

  4. #4
    Join Date
    Jun 2009
    Location
    Chicago Suburbs
    Beans
    Hidden!
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Installing ubuntu 11.10 on external hard drive

    I have always liked Herman's instructions as linked by bcbc, but some new users find them too much (detail). But he has the important detail highlighted of where to install the boot loader. You have to install it to sdb or whatever device the external is seen as. Many suggest unplugging internal drive but if portable or you are not comfortable unplugging drives you do have to install grub correctly.

    p24/041.png Shows combo box to select where to install the grub2 boot loader.
    Where Do You Want To Install GNU/GRUB boot loader?
    http://members.iinet.net.au/~herman546/p24/041.png

    Brizvegan linked instructions also mention choosing sdb, but does not highlight it quite as much. But I do not think you need the separate /boot for a desktop install. But I do prefer the choice of an extra NTFS partition for shared data with Windows. Best not to write into the Windows 7 system partition.

    For the Total space you want for Ubuntu:
    Ubuntu's standard install is just / (root) & swap, but it is better to add another partition for /home:
    1. 10-25 GB Mountpoint / primary or logical beginning ext4(or ext3)
    2. all but 2 GB Mountpoint /home logical beginning ext4(or ext3)
    3. 2 GB Mountpoint swap logical

    Depending on how much memory you have you may not absolutely need swap but having some is still recommended. I do not hibernate (boots fast enough for me) but if hibernating then you need swap equal to RAM in GiB not GB. And if dual booting with windows a shared NTFS partition is also recommended. But you usually cannot create that as part of the install, just leave some space. Or partition in advance (recommended).
    One advantage of partitioning in advance is that the installer will use the swap space to speed up the install. Thanks Herman for the tip.
    For info on UEFI boot install & repair - Updated Mar 2015:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  5. #5
    Join Date
    Mar 2012
    Beans
    2

    Re: Installing ubuntu 11.10 on external hard drive

    Thanks bcbc, that is exactly what I was looking for! I will definitely install ubuntu once I get another external drive. The one that I currently have has a few bad sectors, and I don't need it to crash again...

    Herman's walkthrough does not go into file system choice too much, so does it have to be ext4 by default? I have never heard of these other file systems for ubuntu so I don't know anything about them.

    Another question, what size swap partition should I make? I have 9GB of RAM installed?

  6. #6
    Join Date
    Nov 2009
    Location
    North Vancouver
    Beans
    Hidden!
    Distro
    Edubuntu 14.04 Trusty Tahr

    Re: Installing ubuntu 11.10 on external hard drive

    I always use ext4. That should be the default as well. I confess I don't know a lot about the newer btrfs but from glancing at various posts since it came out... it seems it's had a few issues (not unusual for a new fs I guess). Here's a comparison that looks like ext4 performs better: http://www.phoronix.com/scan.php?pag...33_btrfs&num=1

    In terms of swap, it depends on whether you want to hibernate. If you do, I generally make swap = size of RAM + 500MB. Probably as RAM gets bigger the + 500MB can get smaller, but e.g. on my old beater with 1GB RAM it wouldn't always hibernate so I doubled it for swap.
    I've never seen an exact formula for sizing swap that allows hibernation, so I recommend erring on the plus size, rather than trying to be stingy.

    If you don't want to hibernate, you probably don't need a lot of swap with that much RAM.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •