boot from external usb disk

[Ben Andersen]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

I've used grub2 on a new install of Ubuntu 12.04 for about a month on a
new intel SSD 240Gb in a USB 2.0 chassis. I use different models of
older HP laptops like nc6400, 6730b, nx7400.

It's been acting up sometimes with the message "Error: Out of disk.
Press enter to continue" (this was in gfx mode). Pressing enter it just
booted. But now it won't boot anymore!
I just get either "error: out of disk. grub rescue>"
or
the grub prompt..

I put the disk in a computer as an internal disk and it sometimes acts
up there too. But mostly it works.

I've been using disks like this for the last 4 years and it has worked
most of the time. My last SSD crashed about a month ago after the same
behavior as I get now. I then used boot-repair which definately crashed
it. http://paste.ubuntu.com/1495041

Anybody who knows what the problem could be?

I'd love to be able to continue to run the disk in the usb chassis.
There must be a difference in how grub handles the disk when it's an
internal disk and when it's an external usb disk.


BR,
Ben
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with undefined - http://www.enigmail.net/

iQEcBAEBAgAGBQJRAqXPAAoJEDK64axYS9aIqDYH/jbwqsviBV0Q3UERmWztkWsZ
04C4EF18tYUVD8OTRlaeUNuKZhZ8VGAJm7WjAqhbalKZ/VRK85f/CLPSurEC2tuB
InLU7aSlyoqCXTpf8oiTbT5MeN/DrQ6GTaucZirfMXiula5jYRe4LX4dh0krPwCL
KwGF9w2AS7tUytAjLR8PnbtQEvEE6ECv+UdfyAHiy08jM32OT+H8Vr9GXYqzu0dg
E8qn/9tcOUAZqaL0gnFoFMYsPyE15Cj5wNaxZ0ZZOeq/W2YfIix7eATCw62i+tX/
ZvLwzFPTZoDq0ZaVAUdqRbUB7hrqlTbdqzaJi/TmcC+b7sdJdrd4bh8mvbIFHY4=
=ofXN
-----END PGP SIGNATURE-----