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Re: boot from a iso with grub-imageboot problem



On 21/12/11 04:26, afuentes wrote:
> I installed grub-imageboot. 

I assume you're referring to the Wheezy package, not the Grml package.

>  When I try to boot the isos, i get
> "Linux-bzImage error: file not found"
> i changed the conf-file 

What conf file? /etc/default/grub??

> to point to a directory on my home and run
> udpate-grub2 successfully.

Did you see your isos being added to the grub.cfg?

> 
> /home is in a lvm volume (in case it matters)

At what point during the booting of the isos from beneath /home, in an
lvm, is the lvm accessible? ;-)
> 
> This is the directory with the isos:
> 
> rw-r--r-- 1 afuentes     afuentes  723517440 Dec 20 16:37
> CentOS-6.1-x86_64-LiveCD.iso
> -rw-r--r-- 1 libvirt-qemu kvm       176160768 Sep  2 11:46
> debian-6.0.2.1-amd64-netinst.iso
> -rw-r--r-- 1 afuentes     afuentes  679477248 Aug 30 10:47
> debian-6.0.2.1-i386-CD-1.iso
> -rw-r--r-- 1 afuentes     afuentes  200278016 Aug 30 10:15
> debian-6.0.2.1-i386-netinst.iso
> -rw-r--r-- 1 libvirt-qemu kvm       436207616 Nov 14 14:13
> debian-6.0.3-amd64-i386-netinst.iso
> -rw-r--r-- 1 afuentes     afuentes 1173356544 Sep  3 04:49
> debian-live-6.0.2-amd64-gnome-desktop.iso
> -rw-r--r-- 1 afuentes     afuentes   18874368 Dec  9 14:22
> debian-testing-snapshot-2011.12-amd64-mini.iso
> -rw-r--r-- 1 afuentes     afuentes       1068 Aug 22 12:08
> Fedora-15-i686-Live-CHECKSUM
> -rw-r--r-- 1 afuentes     afuentes  592445440 Aug 22 13:01
> Fedora-15-i686-Live-Desktop.iso
> -rw-r--r-- 1 afuentes     afuentes  633339904 Dec 20 16:46
> Fedora-16-x86_64-Live-Desktop.iso
> -rw-r--r-- 1 afuentes     afuentes 1077379072 Dec  1 12:02
> linuxmint-12-gnome-dvd-32bit.iso
> -rw-r--r-- 1 afuentes     afuentes 1066518528 Nov 30 09:22
> linuxmint-12-gnome-dvd-64bit.iso
> -rw-r--r-- 1 afuentes     afuentes  707788800 Dec 20 16:43
> openSUSE-12.1-GNOME-LiveCD-x86_64.iso
> drwxr-xr-x 2 afuentes     afuentes       4096 Nov 10 13:40 pkg
> -rw------- 1 afuentes     afuentes  721127424 Aug 17 13:21
> ubuntu-10.04.3-desktop-i386.iso
> -rw-r--r-- 1 vde2-net     libvirt   713529344 Jul 19 22:05
> ubuntu-10.04.3-server-amd64.iso
> -rw-r--r-- 1 afuentes     afuentes  732112896 Sep  8 14:21
> ubuntu-11.04-desktop-amd64.iso
> -rw-r--r-- 1 afuentes     afuentes  731164672 Dec 20 12:53
> ubuntu-11.10-desktop-amd64.iso
> -rw-r--r-- 1 afuentes     afuentes  715436032 Nov 15 15:48
> ubuntu-11.10-server-amd64.iso
> -rw-r--r-- 1 vde2-net     libvirt   621817856 Aug 26 13:03
> ubuntu-9.04-server-amd64.iso
> -rw-r--r-- 1 afuentes     afuentes  434065408 Sep  8 14:30
> xbmc-10.1-live.iso
> 
> 
> Does anybody know what am i missing?
> 
> thanks!
> Alberto
> 
> 
I haven't used grub-imageboot for a while (since it was a Grml package)
but... when I did, I had the iso images beneath /boot on an USBKey using
FAT32. I had problems with other filesystems[*1]

Posting grub.cfg might be instructive. grub-imageboot doesn't use a
loopback system to extract the kernel and initrd, which makes it
difficult to figure out what's going on (it maps iso directly into memory).

Note that memdisk ISO emulation is tricky[*2] - some images will use it,
others require different versions (or memtest), or simply won't work.

I'd suggest you use a simple USBkey setup to try and isolate your problem.

I found grub-imageboot to be more trouble than it's worth for booting
Linux systems. Great for non-Linux systems though....


Cheers

[*1]http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=543924
[*2]See (when the site's back up):-
http://www.syslinux.org/wiki/index.php/MEMDISK
-- 
Iceweasel/Firefox extensions for finding answers to Debian questions:-
https://addons.mozilla.org/en-US/firefox/collections/Scott_Ferguson/debian/


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