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Thread: Need help installing to external USB HARD DRIVE

  1. #1
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    Exclamation Need help installing to external USB HARD DRIVE

    hello everyone
    im new to the forums, i was hoping you could help me out a little

    what im trying to do is install ubuntu 8.10 to a 2.5" external usb HD. once i do this, i want to be able to boot it from my computer (and hopefully on others too?, and use remastersys to create a live CD after i do a bit of modifying.

    in the tutorials i have read, they have said that i need to unplug my internal hard drive first.
    this isnt an option for me...
    anyway around this? and could you provide me with a site with good instructions?


    thanks for any help.

  2. #2
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    Ubuntu 11.04 Natty Narwhal

    Re: Need help installing to external USB HARD DRIVE

    At step 7 of the installation; go to 'Advanced Tab' and replace (hd0) for '/dev/???' where '???' is your USB. When you finish installing and before reboot; edit your /boot/grub/menu.lst and make 'groot' and 'root' (hd0,0). Then at boot, go into BIOS and make USB first in the boot order.

    Dr. Fernando Duran Dollenz
    Libertad 584
    6824871

  3. #3
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    Re: Need help installing to external USB HARD DRIVE

    is there a good website for these instructions?

  4. #4
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    Re: Need help installing to external USB HARD DRIVE

    Try Herman's website:

    http://www.herman.linuxmaniac.net/p23.html

    Note on step 7 where it shows a picture of the "Advanced" settings that Pumalite refers to. Just specify /dev/sdb or whichever is your external drive there. If you have any problems getting through that tutorial, be sure to let us know and we'll try to help.

  5. #5
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    Re: Need help installing to external USB HARD DRIVE


    Dr. Fernando Duran Dollenz
    Libertad 584
    6824871

  6. #6
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    Re: Need help installing to external USB HARD DRIVE

    you guys are great
    thanks
    if anything goes wrong ill be sure to some here

  7. #7
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    Ubuntu 10.10 Maverick Meerkat

    Re: Need help installing to external USB HARD DRIVE

    I'm trying to do the same thing as ipodk88 except that I'm happy if needed to remove my internal HDD.

    My install though is falling over at step 4.

    When my internal HDD is there, the only options I'm given are to install to the internal HDD.

    When I've removed my internal HDD, I get no options whatsoever.

    I know that Ubuntu can 'see' my external HDD as when I plug in the USB connector I get the file browser for the three partitions on it. I can read any file on the external HDD and can write a file to it.

    So why can't step 4 of the install see my external USB HDD???

    I'm currently on day 3 of trying to work out how to install Ubuntu. Why doesn't anyone make life simple?

  8. #8
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    Re: Need help installing to external USB HARD DRIVE

    Roger, how about when you have both drives connected, open a terminal from the Ubuntu Live CD (Applications > Accessories > Terminal), and please post the output of:
    Code:
    sudo fdisk -lu
    So I can see if your second drive is even being detected by Ubuntu.

  9. #9
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    Ubuntu 10.10 Maverick Meerkat

    Re: Need help installing to external USB HARD DRIVE

    Quote Originally Posted by caljohnsmith View Post
    Roger, how about when you have both drives connected, open a terminal from the Ubuntu Live CD (Applications > Accessories > Terminal), and please post the output of:
    Code:
    sudo fdisk -lu
    So I can see if your second drive is even being detected by Ubuntu.
    Yes, it's definitely finding it. This is the result of that command but with the -l suffix instead of -lu

    Code:
    Disk /dev/sda: 160.0 GB, 160041885696 bytes
    255 heads, 63 sectors/track, 19457 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x509ee0a7
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1               1        1530    12288000   27  Unknown
    /dev/sda2   *        1530       13567    96685056    7  HPFS/NTFS
    /dev/sda4           13567       19458    47314944    7  HPFS/NTFS
    Partition 4 does not end on cylinder boundary.
    
    Disk /dev/sdb: 80.0 GB, 80026361344 bytes
    255 heads, 63 sectors/track, 9729 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x94e494e4
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1               1        2010    16145293+   7  HPFS/NTFS
    /dev/sdb2            2011        8538    52436160    5  Extended
    /dev/sdb3            8539        8610      578340   82  Linux swap / Solaris
    /dev/sdb4   *        8611        9729     8988367+  83  Linux
    /dev/sdb5            2011        8538    52436128+   7  HPFS/NTFS
    The 160Gb disk (sda) is my internal HDD and the 80Gb disk (sdb) is the external HDD connected through USB.

  10. #10
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    Re: Need help installing to external USB HARD DRIVE

    Yes, your sdb1 drive is at least recognized by fdisk, so that's a good sign. When you go through the installer and get to the step where it asks how you want to prepare your disk space, try using the "Manual" option (not either of the Guided optons) and see if you can select the sdb drive. Let me know if that helps, or let me know exactly what problems you encounter; it might also help if you can post a screen shot showing the point where you have problems to clarify things.

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