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<TITLE> [Mageia-dev] RFC: Drop mkinitrd completely in favour of dracut.
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<H1>[Mageia-dev] RFC: Drop mkinitrd completely in favour of dracut.</H1>
<B>Colin Guthrie</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20RFC%3A%20Drop%20mkinitrd%20completely%20in%20favour%20of%20dracut.&In-Reply-To=%3C4ED9F236.5030800%40colin.guthr.ie%3E"
TITLE="[Mageia-dev] RFC: Drop mkinitrd completely in favour of dracut.">mageia at colin.guthr.ie
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<I>Sat Dec 3 10:56:06 CET 2011</I>
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<PRE>'Twas brillig, and David W. Hodgins at 03/12/11 09:21 did gyre and gimble:
><i> On Sat, 03 Dec 2011 01:05:31 -0500, Thomas Backlund <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">tmb at mageia.org</A>> wrote:
</I>><i>
</I>><i> Fyi. On one of my cauldron installs, I have /usr in a lvm
</I>><i> logical volume. In order to get this to be bootable, I
</I>><i> modified /etc/dracut.conf to have
</I>><i> add_drivers+="dm_mod dm_crypt"
</I>><i> and
</I>><i> install_items+=(/bin/grep /lib/libpcre.so.0.0.1 /lib/libpcre.so.0
</I>><i> /lib/libdevmapper-event.so.1.02 /lib/libdevmapper.so.1.02
</I>><i> /lib/libreadline.so.6 /lib/libncurses.so.5 /sbin/lvm
</I>><i> /lib/modules/3.1.4-server-1.mga2/kernel/drivers/md/dm-crypt.ko.gz
</I>><i> /lib/modules/3.1.4-server-1.mga2/kernel/drivers/md/dm-mod.ko.gz
</I>><i> /sbin/dmsetup /sbin/lsmod )
</I>><i>
</I>><i> I modified /usr/share/dracut/modules.d/98usrmount/mount-usr.sh to have ...
</I>><i> #!/bin/sh
</I>><i> # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
</I>><i> # ex: ts=8 sw=4 sts=4 et filetype=sh
</I>><i>
</I>><i> type info >/dev/null 2>&1 || . /lib/dracut-lib.sh
</I>><i> type fsck_single >/dev/null 2>&1 || . /lib/fs-lib.sh
</I>><i>
</I>><i> mount_usr()
</I>><i> {
</I>><i> local _dev _mp _fs _opts _rest _fs_found _ret _mount_point
</I>><i> if ! __fgrep "device-mapper" /proc/devices >/dev/null 2>&1 ; then
</I>><i> modprobe dm-mod >/dev/null 2>&1
</I>><i> fi
</I>><i> /sbin/lvm vgchange -a y --sysinit
</I>><i> fsck_mount()
</I>><i> (
</I>><i> # check, if we have to mount the filesystem
</I>><i> _fs_found=""
</I>><i> while read _dev _mp _fs _opts _rest; do
</I>><i> if [ "$_mp" = "/$_mount_point" ]; then
</I>><i> echo "$_dev $NEWROOT/$_mp $_fs ${_opts} $_rest"
</I>><i> _fs_found="1"
</I>><i> break
</I>><i> fi
</I>><i> done < "$NEWROOT/etc/fstab" >> /etc/fstab
</I>><i> if [ "x$_fs_found" != "x" ]; then
</I>><i> # we have to mount it
</I>><i> fsck_single "$_dev" "$_fs"
</I>><i> _ret=$?
</I>><i> echo $_ret >/run/initramfs/$_mount_point-fsck
</I>><i> if [ $_ret -ne 255 ]; then
</I>><i> info "Mounting /$_mount_point"
</I>><i> mount "$NEWROOT/$_mount_point" 2>&1 | vinfo
</I>><i> fi
</I>><i> fi
</I>><i> )
</I>><i> _mount_point="usr"; fsck_mount
</I>><i> _mount_point="var"; fsck_mount
</I>><i> _mount_point="var/mnt"; fsck_mount
</I>><i> _mount_point="opt"; fsck_mount
</I>><i> _mount_point="tmp"; fsck_mount
</I>><i> _mount_point="home"; fsck_mount
</I>><i> }
</I>><i>
</I>><i> mount_usr
</I>><i>
</I>><i> I initially only had the /usr being mounted, but found that when it
</I>><i> got around to trying to mount the next lv, it would report that the
</I>><i> mount timed out due to a dependency failure, but with no indication
</I>><i> of why. I ended up modifying the script to mount all of my lvm
</I>><i> partitions, in the initramfs, to get it to work.
</I>
Cheers Dave. I'll speak to Harald to see how best to handle this in a
more official way.
Col
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Colin Guthrie
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