Hi,

never tried that and might only be a temporary workaround. You could install grub in the mbr of both disk and then point them only to your internal disk. That way you should always be able to boot, shouldn't you?

kh

andrea wrote:
On gio, 2008-02-28 at 12:54 -0500, Don Jerman wrote:
I've had problems with disk presentation order changing (fairly
randomly) when USB disks are attached during boot.  Apparently there's
a race between the SCSI controller and the USB controller(s).  If you
attach the USB disk later the SCSI stuff has all been discovered so of
course it gets allocated later in the list, but if it's attached while
booting the USB disk might come first or in the middle somewhere.

This might lead to grub looking for its files in the wrong place,
which might explain the hang.

This is exactly what happens here.

If you want to test this theory, boot from a CD while the USB is
installed and see where it winds up in /dev, then boot without it.  Be
very careful about assuming drive  identities!  That's how I lost my
system disk last time -- /dev/sdb seemed to be partitioned funny and I
figured it out just a little too late.


I booted in a livecd and opened a grub command line. It reads my usb
disk as (hd0,0).

By the way I don't like this behavior and I need a solution to fix it.
It is a laptop and I don't want to umount and unplug my usb disk every
time I need to hibernate my system.



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