From: Andrey Borzenkov <arvidjaar@mail.ru>
To: "H. J. Lu" <hjl@lucon.org>
Subject: Re: Initrd problem with 2.6 kernel
Date: Sat, 9 Aug 2003 00:52:40 +0400
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> There is a chicken and egg problem with initrd on 2.6. When
> root=/dev/xxx is passed to kernel, kernel will call try_name, which
> uses /sys/block/drive/dev, to find out the device number for ROOT_DEV.
> The problem is /sys/block/drive may not exist if the driver is loaded
> by /linuxrc in initrd. As the result, /linuxrc can't use
> /proc/sys/kernel/real-root-dev to determine the root device number.

{pts/1}% grep \"/sys\" *
do_mounts.c:    sys_mkdir("/sys", 0700);
do_mounts.c:    if (sys_mount("sysfs", "/sys", "sysfs", 0, NULL) < 0)
do_mounts.c:    sys_umount("/sys", 0);
do_mounts.c:    sys_rmdir("/sys");

or do you mean something different?

-andrey
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