On Tuesday 23 March 2010, Michael Schwendt wrote:
On Mon, 22 Mar 2010 17:10:49 -0400, Gene wrote:
On Monday 22 March 2010, Will Walthall wrote:
So I made the assumption that your part layout was /dev/sdb1 f10 system, /dev/sdb2 f12 system.
Option #1 Install grub to the MBR of /dev/sdb Option #2 Install grub to the partition of /dev/sdb1
Lots of things you need to consider, one you dont want to break
Do you Chainload into mandriva aswell? is the Mandriva boot installed to MBR /dev/sdd or in the partition /dev/sdd1?
Steps I would take: :Reinstall grub to the MBR of /dev/sda and make sure that it has these 3 : devices
-grub prompt in f10- device (hd0) /dev/sda //f10 device (hd1) /dev/sdb //f12 device (hd2) /dev/sdd //mandriva root (hd0,0) setup (hd0)
This did not return any errors, so I am off to try it.
And, and hour later, it failed, error 13. Invalid file format or some such drivel.
The hour was because it decided to do an e2fsck on /usr, which is something over half a Tb.
Option #1
:Reinstall grub to the MBR of /dev/sdb
device (hd0) /dev/sdb // This grub is isolated from the MBR one on /dev/sda so I believe this is correct, I've never done something like this personally, though I've messed around with grub alot root (hd0,0) setup (hd0)
: Make sure all your entries in menu.lst for f10 are correct
# Again I think this is correct, though I haven't done anything like this, I have chainloaded into grub installed to a partition, but not into one installed to another MBR on a seperate drive title Fedora 12 root (hd1,1) chainloader (hd1)+1
Now I have done this, and will try it. And this reverts to the grub screen from /dev/sda in about 4 seconds, silently.
Why did you try that? root (hd1,1) expands to /dev/sdb2 which is not what you had referred to earlier.
# load boot sector of first partition (sdb1) title Fedora 12 rootnoverify (hd1,0) chainloader +1
Assuming that F12's GRUB _really_ is installed in /dev/sdb1 and NOT the MBR.
And I repeat, at the initilization screen, I told it to put it in the mbr of /dev/sdb. No idea if it did. But now I'll redo it (the whole install) and have it put there.
And if it's installed in the MBR, you could boot F12 by changing the boot order in your BIOS, then use "grub-install" to (re-)install the boot loader. Make sure that you don't mix /dev/sda1 and /dev/sdb1 when running grub-install.
If its that complex, how then do I install grub in /dev/sdb1? Easier to reinstall, I want /root and /usr both on their own partitions anyway.