linux-kernel - New kernel option alt_root for trying harder to find a valid root device

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Message-Id: <1245171405.4309.10.camel@localhost>
Date:	Tue, 16 Jun 2009 18:56:45 +0200
From:	Martin Bammer <mrbm74@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: New kernel option alt_root for trying harder to find a valid root
 device

Hi,

the attached patch (created against 2.6.30) makes the kernel harder
finding a valid root device.
Changes are:
- New kernel option alt_root=<alternative root device>
- If an alternative root device is defined with alt_root, e.g.
alt_root=/dev/sda1, and the primary root device could not be found
because a) root device is defined by it's UUID and b) initrd is missing
or damaged, then the kernel will try to use /dev/sda1 as it's root
device.
- If an alternative root device is defined with alt_root and initrd is
damaged then the kernel will try to use /dev/sda1 as it's root device.

Martin


View attachment "init_mounts_alt_root.diff" of type "text/x-patch" (2820 bytes)