[ubuntu-in] Booting Ubuntu 10.04 from ISO using grub2

[Mallikarjun(ಮಲ್ಲಿಕಾರ್ಜುನ್)]

On Sat, Apr 17, 2010 at 9:18 AM, Sandeep Raghuraman <sandy.8925 at gmail.com>wrote:

> It's possible to boot Ubuntu 10.04 from the ISO using grub 2 ! You can do
> this with the current beta versions too. I've tested with Ubuntu 10.04 Beta
> 1 ISO.
>
>
I never thought this would be possible in my vaguest ideas. thanks for the
post. I will try and let you know...

I found out how to do this from this awesome guide for GRUB:
>
> http://members.iinet.net/~herman546/p20.html<http://members.iinet.net/%7Eherman546/p20.html>
>
> The page for booting ISO's using grub is here:
>
>
> http://members.iinet.net/~herman546/p20/GRUB2%20Configuration%20File%20Commands.html#Loopback_Boot_Entry<http://members.iinet.net/%7Eherman546/p20/GRUB2%20Configuration%20File%20Commands.html#Loopback_Boot_Entry>
>
> This can only be used for distros that actually support this feature. I
> guess Knoppix would work with this.
>
> You'll have to add the following to your /boot/grub/grub.cfg file.Add it
> just before the line containing "### END /etc/grub.d/10_linux ###"
>
> echo "Adding Ubuntu 10.04 Beta1 ISO boot entry" >&2
> cat << EOF
> menuentry "Ubuntu 10.04 Beta1 ISO" {
> loopback loop (hdx,x)/path_to_iso
> linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=path_to_iso
> noprompt noeject quiet splash
> initrd (loop)/casper/initrd.lz
> }
>
> The x in (hdx,x) must be replaced by the appropriate numbers. It refers to
> a disk partition. For example on my system /dev/sda3 is my Ubuntu partition
> and it is (hd0,3).
>
> path_to_iso must be replaced by the path to the iso file. For example if
> the ISO is stored in your Downloads folder the loopback and linux lines
> would be:
>
> loopback loop
> (hd0,3)/home/username/Downloads/ubuntu-10.04-beta1-desktop-i386.iso
> linux (loop)/casper/vmlinuz boot=casper
> iso-scan/filename=/home/username/Downloads/ubuntu-10.04-beta1-desktop-i386.iso
> noprompt noeject quiet splash
>
> It works faster than booting from a CD. You can check out the new theme and
> the change in the minimize,maximize,exit buttons which have been placed on
> the left. A bit annoying for me since I tend to move the mouse to the right
> whenever I want to use those. Gimp has been removed and the Pitivi video
> editor is now included.
>
> Have fun!
>
> Please tell me if there any errors here and correct them if you can.
>
> --
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> ubuntu-in at lists.ubuntu.com
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>
>
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