[CentOS] problem configuring grub for a dual-boot

[Ljubomir Ljubojevic]

On 08/08/2013 12:04 PM, Vanhorn, Mike wrote:
>
> I tried the suggestion of swapping the disks assignments:
>
>> Try telling grub to swap the disks:
>>
>>>   title Windows 7
>> map (hd1) (hd0)
>> map (hd0) (hd1)
>>>   rootnoverify (hd1,0)
>>>   chainloader +1
>
> But that still just gets me
>
>
>   invalid EFI file path
>   Error 1: Filename must be either an absolute pathname or blocklist
>
>
>
> I think that my failing is something to do with grub and EFI. In the
> anaconda-generated  grub.conf file, there is a line that reads
>
>   device (hd0) HD(1,800,64000,9b55c4a9-fdbe-4fcd-857b-8e7e129e29f9)
>
> I have no idea where that UUID came from, as both blkid and ls -l
> /dev/disk/by-uuid do not have entries for the disks themselves, just for
> the partitions. Maybe that isn't even a UUID. At any rate, I'm wondering
> if there should be a similar entry for the other disk in the system.
>
> ---
> Mike VanHorn
> Senior Computer Systems Administrator
> College of Engineering and Computer Science
> Wright State University
> 265 Russ Engineering Center
> 937-775-5157
> michael.vanhorn at wright.edu
> http://www.cecs.wright.edu/~mvanhorn/
>

Check this bug: https://bugzilla.redhat.com/show_bug.cgi?id=880030

And search the net for 'device (hd0) HD(1,800", you will get interesting 
texts that might help you.


-- 
Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

StarOS, Mikrotik and CentOS/RHEL/Linux consultant