Re: Dedicated grub2 partition

[Goh Lip]

On Monday 04,October,2010 06:36 PM, Barry Jackson wrote:
> On 04/10/10 00:57, Goh Lip wrote:
> > On Monday 04,October,2010 07:48 AM, Goh Lip wrote:
> > > Barry, try this.......


> > So...
> >
> > menuentry "PCLOS live iso" {
> > loopback loop (hd0,x)/<path>/pclinuxos-lxde-2010.1.iso
> > linux (loop)/isolinux/vmlinuz findiso=/<path>/pclinuxos-lxde-2010.1.iso
> > boot=isolinux quiet noeject noprompt
> > initrd (loop)/isolinux/initrd.gz


> >
> Hi Goh
> Since the .iso is in the root of sda1, the <path> is not actually needed.
> I have tried many variations on this:-
>
> menuentry 'PCLOS live iso' {
> loopback loop (hd0,1)/pclinuxos-lxde-2010.1.iso
> linux (loop)/isolinux/vmlinuz findiso=/pclinuxos-lxde-2010.1.iso
> boot=isolinux quiet noeject noprompt
> initrd (loop)/isolinux/initrd.gz
> }
> I changed to boot=boot, livecd=livecd, boot=livecd and the result is
> always the same:-

Barry, I forgot about "boot=live"  - let's try that

menuentry "PCLOS live iso" {
loopback loop (hd0,1)/pclinuxos-lxde-2010.1.iso
linux (loop)/isolinux/vmlinuz findiso=/pclinuxos-lxde-2010.1.iso 
boot=live quiet noeject noprompt
initrd (loop)/isolinux/initrd.gz


> ACPI: Aborted because no cpio magic.
> Kernel panic - not syncing: No init found. Try passing init= option to
> kernel.
>
> I tried adding noacpi but no change.
>
> With the findiso= the initrd won't boot - without it it runs and gets as
> far as detecting all hardware, then searches all devices for the "loop
> image" by which I am guessing it means livecd.sqfs ?
> I tried livecd=(loop)/livecd but no change.


The 'old' way was to use 'isofrom=/dev/sda1/<path_to>/xxx.iso' instead 
of 'findiso=/<path_to>/xxx.iso'   (note: no longer need /dev/sdax)


So if we use old method, it would be....

menuentry "PCLOS live iso" {
loopback loop (hd0,1)/pclinuxos-lxde-2010.1.iso
linux (loop)/isolinux/vmlinuz 
isofrom=/dev/sda1/pclinuxos-lxde-2010.1.iso boot=live quiet noeject noprompt
initrd (loop)/isolinux/initrd.gz


That might be worth a try,

> I have only 1GB ram - just a thought.

Understand your thinking - but unless we use 'toram' (that sends 
everthing to ram, useful for cdrom live), that should not make much 
difference, but we'll keep this in mind.

Thinking back, there was a livecd which require a 'password' which I had 
put in the linux (kernel) line to boot. But I forgot which livecd that 
was and goes something like "key=xxxxx", or "key=nokey" but I don't 
think pclinuxos requires that.




>  > Thought you've got these booted?, but never mind, we'll handle the
>  > iso boot first, ya?
>
> Yes - I did say "Off topic" that is another issue. It happens if I try
> to use the motherboard SATA controllers (nforce3). I have no problems at
> all using a PCI Silicon Image SATA card with the grub.cfg I paste binned
> earlier. Forget that issue for now!

Yes!




> Barry


Good luck. - Goh Lip