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Thread: Install One Ubuntu Version from ISO of Another?

  1. #1
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    Question Install One Ubuntu Version from ISO of Another?

    If I'm booted into Ubuntu version X from /dev/sda, and have an ISO image of version Y mounted (using Gmount-iso), or have a CD of Y, can I install Y to /dev/sdb without booting Y?

  2. #2
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    Re: Install One Ubuntu Version from ISO of Another?

    Bump.

  3. #3
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    Re: Install One Ubuntu Version from ISO of Another?

    You can use grub2 to loop mount an ISO and then run it. While the links are for USB it can be done from another partition. You just have to be careful of what partitions are mounted.

    MultiBoot USB with Grub2 (boot directly from iso files)
    http://www.panticz.de/MultiBootUSB
    HOWTO: Booting LiveCD ISOs from USB flash drive with Grub2
    http://ubuntu-ky.ubuntuforums.org/sh....php?t=1288604
    http://ubuntuforums.org/showthread.php?t=1451184
    http://members.iinet.net/~herman546/...l#cli_loopback
    http://ubuntuforums.org/showthread.php?t=1224417
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







  4. #4
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    Re: Install One Ubuntu Version from ISO of Another?

    Yes, you can run USB Administration/Startup Disk Creator, point it at an ISO on your system, and create that version of Linux. You don't have to mount the ISO, maybe you should not mount the ISO.

    I downloaded the Lubuntu ISO and did exactly this, to get a persistent flash drive which boots Lubuntu.

  5. #5
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    Re: Install One Ubuntu Version from ISO of Another?

    Quote Originally Posted by oldfred View Post
    You can use grub2 to loop mount an ISO and then run it. While the links are for USB it can be done from another partition. You just have to be careful of what partitions are mounted.

    MultiBoot USB with Grub2 (boot directly from iso files)
    http://www.panticz.de/MultiBootUSB
    HOWTO: Booting LiveCD ISOs from USB flash drive with Grub2
    http://ubuntu-ky.ubuntuforums.org/sh....php?t=1288604
    http://ubuntuforums.org/showthread.php?t=1451184
    http://members.iinet.net/~herman546/...l#cli_loopback
    http://ubuntuforums.org/showthread.php?t=1224417
    This is much more complicated than the simple solution, USB Startup Disk Creator.

  6. #6
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    Re: Install One Ubuntu Version from ISO of Another?

    Yes it is more complicated the first time.

    But I have 4 copies of Ubuntu, gparted, system rescue and one or two more, all one one USB. I can update by just copying the ISO over and editing grub.
    For info on UEFI boot install & repair:
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to close thread when/if answered completely.







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