Grub and logical partitions

Timothy Murphy gayleard at
Fri Jul 30 22:21:38 UTC 2010

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.

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