Hello, I recently went through the same thing as you with squeeze and some 2T and 3T drives. The thing that has been working really well for me is to create a small partition with the special flag of bios boot partition. The installer has this option for a partition type but when I did it in the installer but it never worked for me. I booted knoppix and did it then the installer worked all automagically.
check out this url for more info http://grub.enbug.org/BIOS_Boot_Partition <http://grub.enbug.org/BIOS_Boot_Partition>- chris On Thu, Apr 7, 2011 at 5:32 AM, Georgi Naplatanov <go...@oles.biz> wrote: > > > On 03/27/2011 11:33 PM, Tom H wrote: > >> On Sun, Mar 27, 2011 at 10:35 AM, Georgi Naplatanov<go...@oles.biz> >> wrote: >> >>> >>> I have 2 disk Western Digital WD2002FAEX - 2TB and I want to install >>> Squeeze >>> with software RAID 1 and GPT instead of old MSDOS partition map. >>> >>> I want to use GRUB2 as boot loader, but I read that is needed to be >>> created >>> a BIOS Boot Partition.[1] >>> >>> I have 2 disk and I want when one of them fail to be possible to boot >>> from >>> another. >>> >>> My question is - Will installer, GRUB2 and Squeeze handle synchronization >>> of >>> BIOS Boot Partition on both disks or I have to do it manually and >>> eventually >>> how to do it manually ? >>> >> >> I've found that you have to format your disks before the install (and >> create a bios_grub partition) and you then have to run "grub-install >> /dev/sdb" once you're booted into your install. >> >> You can probably install grub on both disks by refusing to install to >> the MBR and then installing it to (hd0) and (hd1) but I've never tried >> it. >> >> >> > Hello Tom. > > Yesterday I installed Squeeze (AMD64) (in expert mode) on my computer and > refused the installer to install GRUB2 on MBR and tell it to install on > "(hd0) (hd1)". The installation works very well, Linux boots successfully > from both drives. > > In both cases - GPT and MSDOS, grub2 installs in MBR, but in different > ways. I found this explanation : > > "Note that if you've converted an MBR disk to GPT format, booting will fail > even if you were previously using a GPT-aware version of GRUB. This is > because the MBR and GPT boot-time code for GRUB is different; in fact, GRUB > installs part of itself just after the MBR on MBR-based disks (when you > install it to the MBR), but that space becomes used by GPT on GPT disks, so > converting MBR to GPT will wipe out part of GRUB. Re-installing a GPT-aware > GRUB, as just described, will correct this problem." [1]. > > May be Debian installer has to explain more detail how to install GRUB2 > with GPT or handle it automatically. > > Thank you. > > Regards > Georgi > > [1] - http://www.rodsbooks.com/gdisk/booting.html > > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a > subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > Archive: http://lists.debian.org/4d9d84a4.9080...@oles.biz > >
