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Thread: 12.04.1 installation question

  1. #1
    Join Date
    Dec 2008
    Beans
    19

    Question 12.04.1 installation question

    Hello,
    first, I have a disk(A) with ubuntu 10.10+GRUB installed,
    and I want to install ubuntu 12.04.1 on another disk(B,without any operating system), unluckly, I don't have cdrom and the computer mainboard does not support boot from usb.

    so, I install the ubuntu 12.04.1 by this way:
    1. download precise iso from (seems only alternative version works) http://releases.ubuntu.com/precise/u...rnate-i386.iso
    (md5 and sha1 sum both checked)

    2. extract iso:/install/initrd.gz and iso:/install/vmlinuz
    to diskA:/boot/ and add a menuentry in the diskA:/boot/grub/grub.cfg, then I can boot into the setup wizard.

    3. when setup wizard detects cdrom, I enter another console(Alt key +F2), and exec:
    mkdir /t
    mount /dev/sda2 /t
    #/dev/sda2 is a partition of diskA
    mount -o loop /t/ubuntu-12.04.1-alternate-i386.iso /cdrom

    I once did this sucessfully and boot into the new ubuntu 12.04.1,
    yes, from diskB, however, after some time later, I did the same step again, but can not success because when I run:
    mount -o loop /t/ubuntu-12.04.1-alternate-i386.iso /cdrom
    I always got:
    mount:mouting /dev/loop0 on /cdrom/ failed:Invalid argument

    I was stuck because I did installation successfully once, but why failed after ?

    Thanks for your help!
    Last edited by chenzero; January 17th, 2013 at 06:17 AM. Reason: spell correction

  2. #2
    Join Date
    Oct 2005
    Location
    INDY
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: 12.04.1 installation question

    This link should provide an easier method to boot the iso from your installed hard drive and then install to your secondary drive.
    I have successfully done this from this guide in the past.
    You just need to be careful as to what drive you are installing to and where you are installing grub.

    https://help.ubuntu.com/community/Grub2/ISOBoot
    Castles Made of Sand,
    Fall in the Sea,
    Eventually!

  3. #3
    Join Date
    Dec 2008
    Beans
    19

    Re: 12.04.1 installation question

    Quote Originally Posted by arpanaut View Post
    This link should provide an easier method to boot the iso from your installed hard drive and then install to your secondary drive.
    I have successfully done this from this guide in the past.
    You just need to be careful as to what drive you are installing to and where you are installing grub.

    https://help.ubuntu.com/community/Grub2/ISOBoot
    Thank you to point out that great link!
    very useful!!!

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