Re: grub2 - chainloader - linux on usb - bios does not see usb.

[Goh Lip]

On Fri, 24 Dec 2010 03:05:56 +0800, Pawel Karpowicz <address@hidden>  
wrote:

> Hallo Keszav.
> Thank You for the answer.
>
>
> Try "insmod usbms" (USB Mass Storage module) and "insmod part_msdos"
> > (Load MBR partition table module).
>
>
> Unfortunatelly no luck :( `ls' command does not see other drives than  
> hd0,
> which is notebooks hard drive.
>
>
> > On a side note, why can't you
> > install grub2 to the usb directly instead of using a cd to boot the
> > usb? It is possible.
> Actually I did it, ie. boot sector of my usb flash drive contains grub.
> Problem is with relativelly old machines that do not  support booting  
> from
> USB. Such machines usually allow booting from CD.
> My idea is to put simple grub2 chainloader that chains CD grub to USB  
> grub.
> That's why my concern.
>
> best regards,
> Paul



Pawel, you can try any one of the four following  grub.cfg to be put into  
your bootable grub2 cd.


menuentry "Label - Vmlinuz " {
    search --no-floppy --label --set xxx
    linux /vmlinuz root=LABEL=xxx ro
    initrd /initrd.img
}

menuentry "Label - Configfile " {
    search --no-floppy --label --set xxx
    configfile /boot/grub/grub.cfg
}


menuentry "uuid - Vmlinuz " {
    search --no-floppy --fs-uuid --set xxxxxxxxxxxxxx
    linux /vmlinuz root=UUID=xxxxxxxxxxx ro
    initrd /initrd.img
}

menuentry "uuid - Configfile " {
    search --no-floppy --fs-uuid --set xxxxxxxxxxxxx
    configfile /boot/grub/grub.cfg
}


ps: o that is your /boot is in your '/' partition.


Regards - Goh Lip
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