Timothy Murphy wrote:
> Can grub boot from a logical partition?
>
> It seems from my reading that it cannot.
>
> But I found that I could in fact boot from /dev/sda5
> if I used grub interactively, starting with
> root (hd0,4)
> then using tab to look for kernel and initrd
> and finally booting.
>
> However, if I put exactly the same commands in grub.conf
> the boot failed, with "File not found ...".
>
> (Nb I am not using LVM, sda5 is a logical partition
> within the extended partition sda4.)
>
> Can some guru explain this to me please.
I'm using legacy grub1 for booting from logical partitions (ext2/ext3
and now ext4) routinely long since early Fedora (maybe Redhat 7.x/8/9)
versions, already without problems.
But just now on F13 i686 I run across other, maybe similar problem:
I install it on /dev/sda8 (sda is 200GB SATA drive, DOS type partition
table, grub installed in MBR), installation passed OK. But when booting,
grub not print any error, but display stage2 message:
GNU GRUB version 0.97 (639K lower / 1047488K upper memory)
[ Minimal BASH-like line editing is supported. For the first word, TAB
lists possible command completions. Anywhere else TAB lists the possible
completions of a device/filename.
It seems to me as if it could not find configfile. But, when I type
"root (hd0,7)" and "configfile /boot/grub/grub.conf" (or "configfile
/boot/grub/menu.lst"), then normally appears f13 grub splash screen with
menu items and after selecting one grub correctly boot it.
- reinstalling grub ( "root (hd0,7)" and then "setup [--force-lba]
(hd0)" does not help.
- when I restore grub for Fedora 12, which is installed on /dev/sda7 (in
same manner: "root (hd0,7)" and then "setup (hd0)" ), then grub works fine.
- only thing which hit me is about accessing files beyond 137 GB (28 bit
LBA limit), as sda8 partition lies at <117GB,144GB>. But - on other i686
PC I have F12 on /dev/sda10 (sda10 partition start on 128GB and ends at
148GB) and F13 on /dev/sda9, and both are bootable via grub1 without
problems. Moreover, I think, when there would be 28-bit addressing
problem, then nor handy specification should be successfull.
Some grub1 guru should be likely in Fedora/Redhat suite, as grub1 is
stated as legacy and isn't supported :) ?
Franta
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