Re: Boot .iso with GRUB2

[Narcis Garcia <debianlists@actiu.net>]

__________
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El 05/04/18 a les 19:55, Thomas Schmitt ha escrit:
> Hi,
> 
> Narcis Garcia wrote:
>> I've tried this with no luck:
>> iso_path="/debian-live-9.4.0-amd64-gnome.iso"
>>       linux  /live/vmlinuz-4.9.0-6-amd64 boot=live components "${loopback}"
>>       initrd /live/initrd.img-4.9.0-6-amd64
>>
>> Results in:
>> [...] ... mounted filesystem...
> 
> So GRUB obviously found the ISO and started the kernel with that initrd.
> 
> 
>> (initramfs) Unable to find a medium containing a live file system
> 
> A possible emitter of this message is in the initrd inside the ISO.
> 
>   gunzip < /mnt/iso/live/initrd.img-4.9.0-6-amd64 | strings | less
> 
> produces the string
>   Unable to find a medium containing a live file system
> and leads me via "livefs_root", "find_livefs", "check_dev" to
>   fromiso=
> 
> Dunno whether
>   https://manpages.debian.org/testing/live-boot-doc/live-boot.7.en.html
> is applicable to debian-live-9.4.0-amd64-gnome.iso, but it has
>   
>   findiso=/PATH/TO/IMAGE
>     Look for the specified ISO file on all disks where it usually looks
>     for the .squashfs file (so you don't have to know the device name
>     as in fromiso=....).
> 
>   fromiso=/PATH/TO/IMAGE
>     Use a filesystem from within an ISO image that's available on
>     live-media.
> 
> If this does not yield insight, then one will have to unpack the compressed
> cpio archive initrd.img-4.9.0-6-amd64, to identify the script that bears the
> code about "Unable to find a medium containing a live file system", and
> to find out how to make it accept a ISO image file instead of e.g. a CD-ROM
> device.
> 
> 
> Have a nice day :)
> 
> Thomas
> 

THANK YOU.
My only problem was that Debian seems to read "findiso" parameter
instead of "iso-scan/filename" as Ubuntu does.

Now I boot Live .ISOs from GRUB2: Debian 7, Debian 8 and Debian 9.

Debian 6 not. After a minute says:
"
BOOT FAILED!
(...)
live-boot will not start a shell. The error message was:
Unable to find a medium containing a live file system
"

I've tried also with debian-8.10.0-i386-lxde-CD-1.iso (not Live: only
installer) but DebianInstaller says "No common CD-ROM drive was
detected" and asks for loading CD-ROM drivers or select CD-ROM module
and device (noone is accepted).