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Re: Grub Failure when HDD descriptor changes

From: Molle Bestefich
Subject: Re: Grub Failure when HDD descriptor changes
Date: Tue, 22 Mar 2005 21:41:20 +0100

> Me.
> I appreciate if you could improve it even a bit. The device mapping problem is
> the main source of headache for me. I am looking forward to your patch.

I'll try my best.
Being that I'm new to GRUB, that's probably not very good ;-).

Incidentally, could you perhaps offer your comments on the attached patch?

It should enable GRUB to detect the correct number of sectors on
device-mapped devices, seeing as the BLKGETSIZE ioctl seems to work on
those, but HDIO_GETGEO doesn't.

One thing I can think of myself is to actually calculate the "correct"
cylinder count with 63 secs/track and 255 heads, instead of just using
the large drive placeholder values of 1024/255/63.  Not sure if it
matters any.

Attachment: grub-0.96-devicemapper.patch
Description: Binary data

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