X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=components%2F9990-misc-helpers.sh;h=6f84ead820f18fb6db03b013b101b28f85c49bb7;hb=HEAD;hp=535d5926898a426e8bb1bd6a3c178fc1a8848d72;hpb=cf60d58aaf46248744f163b4892040a8e323579a;p=live-boot-grml.git

diff --git a/components/9990-misc-helpers.sh b/components/9990-misc-helpers.sh
index 535d592..d14b072 100755
--- a/components/9990-misc-helpers.sh
+++ b/components/9990-misc-helpers.sh
@@ -268,6 +268,21 @@ check_dev ()
 				# Adding raid support
 				if [ -x /scripts/local-block/mdadm ]
 				then
+					# Before actually doing anything, make sure that no auto-generated
+					# mdadm.conf is around in the initramfs.
+					# Short explanation of why this is needed:
+					# /usr/share/initramfs-tools/hooks/mdadm is executed as part of
+					# mkinitramfs, which generates an /etc/mdadm/mdadm.conf file if one
+					# doesn't exist yet (which should always be the case in our new
+					# chroot) based on the host system configuration. Eventually, this
+					# is copied into the generated initramfs and then causes issues on
+					# other systems.
+					# It's safe to delete the file within the initramfs. The actual
+					# squashfs root will not be affected by that (and, additionally,
+					# a FAI script makes sure that the mdadm.conf in there gets wiped
+					# of any auto-generated arrays).
+					rm -rf '/etc/mdadm/mdadm.conf'
+
 					# Back in the day, when there was still a local-top mdadm script, we
 					# used to select specific devices to be auto-assembled.
 					# This functionality was dropped in the local-block script, so just