I have just upgraded my Ubuntu OS using the "ugrade-manager -d" command from 10.10 to 11.04.
I was using 10.04 and upgraded to 10.10 no problem, When I did the upgrade to 11.04 from 10.10 the disk only gets me to the grub> prompt. From there I am able to boot using grub commands.
The grub.cfg file has entries for root (hd0,msdos1) which I have never seen before it is usually root (hd0,1) no msdos. This is a single operating system machine and never booted to the grub menu although there are other older kernels in the system to boot from as a result of updates.
I have tried update-grub, removing the "msdos" and leaving just the (hd0,1) in the grub.cfg and nothing. I have also booted up with the live cd of the 10.10 edition and tried grub-install which returned no errors yet I still keep getting the grub> prompt and have to boot from there.
By the way I also check the version and it is natty (development branch) so the upgrade was successful. The grub version is 1.99~rc2-2ubuntu1. I have tried to do grub-install form the os itself and get a message that grub is not installed??? yet version shows as above.
If I could get some help on this issue it would be great as my skill set is exhausted on this one.