Re: Booting a USB hard drive
On Thursday, May 12, 2011 04:38:18 am Camaleón wrote:
> On Wed, 11 May 2011 15:30:22 -0700, Peter Bonucci wrote:
> > On Wednesday, May 11, 2011 12:04:48 pm Camaleón wrote:
> >> Okay, I've carefully read all of your tests, so let's recap:
> >>
> >> - SGD (1.98x) cannot detect the USB drive (¿?)
> >> - SGD (0.99x) can detect the USB drive
> >> - GRUB is installed into the MBR of the USB disk
> >> - The Partition where GRUB is stored is marked as booteable
> >>
> >> I still don't know what is preventing the "true" GRUB (the installed
> >> one) from booting but you can try to boot Debian directly with SDG (the
> >> version that detects the disk, that is, v. 0.99x) and see what happens.
> >
> > I agree with your recap.
> >
> > When I run SGD 0.9799,
>
> Wait... I missed this.
>
> SGD 0.9799 is only "GRUB legacy" aware, which means that can only deal
> with GRUB legacy installations, AFAIK.
>
> Did you installed GRUB 2 or GRUB legacy into the USB hard disk?
>
> - If you installed GRUB legacy you have to use SGD 0.97xx to try to boot
> from there
>
> - If you installed GRUB 2 you have to use SDG 1.98xx
>
> > I select Boot & Tools /
> >
> > Boot Master Boot Record (MBR) /
> > Boot Master Boot Record (MBR)
> >
> > SGD lists two drives, (hd0), the laptop hard disk and (hd1) the USB
> > drive. I select (hd1) and SGD displays: "Error 25: Disk Read Error"
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^
>
> (...)
>
> I don't like that error :-/
>
> ***
> 25 : Disk read error
> This error is returned if there is a disk read error when trying to probe
> or read data from a particular disk.
> ***
>
> But you can try with another menu option: "GNU/Linux → Boot GNU
> Linux" (or Boot GNU Linux directly).
I installed GRUB2 onto the USB drive.
SGD 1.98xx does not see the drive at all. The light on the USB drive does not
even flicker.
When I use SGD 0.97xx to "boot directly", it boots to the laptop drive.
Using "Easy swap" does not make a difference. ("Easy swap" assigns the
laptop to hd1 and the USB to hd0. "Boot directly" then boots to hd1.)
I tried removing the laptop hard drive in the hope that it would make it
easier for SGD to find the drive. Both versions of SGD behaved the same as
before.
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