Gentoo Archives: gentoo-user

From: Neil Bothwick <neil@××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] ext3 partition dissapeared :(
Date: Thu, 25 Jan 2007 09:18:44
Message-Id: 20070125091235.55b39e5f@krikkit.digimed.co.uk
In Reply to: Re: [gentoo-user] ext3 partition dissapeared :( by Alan McKinnon
1 On Thu, 25 Jan 2007 09:54:51 +0200, Alan McKinnon wrote:
2
3 > When the
4 > kernel boots, it reads the partition table off disk and knows that the
5 > first partition starts at cylinder 0 and the second partition starts at
6 > say cylinder 2000. The kernel doesn't update this information when you
7 > run fdisk, so if you delete two partitions and create one big one, the
8 > kernel can get confused. It's not hard to fix on the PC, but Linux runs
9 > on 20 architectures that are not all as crazy as Intel PCs, which might
10 > be why this oddity is still there are 15 years. Redhat have a utility
11 > called partprobe that gets everything back in sync after using fdisk,
12 > but I have yet to find it in Portage
13
14 You can do this with "hdparm -z". If it reports an error, you'll need to
15 reboot to ensure the kernel's partition table is up to date.
16
17
18 --
19 Neil Bothwick
20
21 There is absolutely no substitute for a genuine lack of preparation.

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Re: [gentoo-user] ext3 partition dissapeared :( Alan McKinnon <alan@××××××××××××××××.za>