[Mageia-dev] RFC: Drop mkinitrd completely in favour of dracut.

Sat Dec 3 10:56:06 CET 2011

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