Bug#586735: grub-pc: external hdd boots on one system but not on the other

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 06/22/2010 04:15 AM, Kapil Hari Paranjape wrote:
> On one laptop (IBM Thinkpad R51) the system boots normally.
>
> On the other laptop (HCL Mileap based on Intel's old Classmate
> design), grub goes into rescue mode with "no such disk" error. 
>   
Now looking through bug reports again I think I recognise this problem.
I met it when I forgot to mount my partition. Did you pass the
--root-directory argument to grub-install? Did you mount your / and
/boot? Correct syntax is:
grub-install --root-directory=<path to /> /dev/sdX

-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko