boot direct from an iso

ago agostino.russo at
Tue May 13 23:34:42 BST 2008

Scott, apologies if my first email wasn't very clear, I hope that the
second one I sent was more helpful. I am glad to see you found your
way through, and I certainly agree that the documentation on the lupin
hooks should be improved (mostly my fault). I was hoping to provide
the same hooks also in the alternate initrd and was waiting for an
harmonization before writing the docs.


On 5/13/08, Scott D. Davilla <davilla at> wrote:
> Sorry if I sound pissed, I am. I've wasted about a day of searching
> and trying to get this to work and it really gets me cranky when docs
> lie to me.
> I can boot direct from an iso now. Proper kexec params are the following
> mkdir tmp
> mount /dev/sdb1 tmp
> kexec --load tmp/vmlinuz --initrd=tmp/initrd.gz
> --command-line="boot=casper
> debian-installer/custom-installation=/install/custom-installation
> iso-scan/filename=/ubuntu-8.04-desktop-i386.iso
> file=/preseed/ubuntu.seed vesa video=vesafb nosplash"
> /dev/sdb1 is an ext3 partition on a USB flash drive. "vmlinuz" and
> "initrd.gz" are extracted from the iso. ubuntu-8.04-desktop-i386.iso
> is at the root of /dev/sdb1.
> "vesa video=vesafb nosplash" are AppleTV specific. "vesafb' does not
> probe PC BIOS (got none) and I need vesa for X11.
> ubuntu hardy desktop comes right up. And I'll crawl back into my hole now.

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