hooks/updatebase.GRMLBASE: make sure /proc, /sys and /dev are available on update

When using grml-live's -u option for updating the system we need
according /proc, /sys and /dev inside the chroot, otherwise
installing some packages will fail. As FAI doesn't do this in
/usr/lib/fai/updatebase for us (but just for [dir]install) we
take care of it on our own.

Closes: issue890
Signed-off-by: Michael Prokop <mika@grml.org>

diff --git a/etc/grml/fai/config/hooks/updatebase.GRMLBASE b/etc/grml/fai/config/hooks/updatebase.GRMLBASE
index 2b9d180..cef16c0 100755 (executable)
--- a/etc/grml/fai/config/hooks/updatebase.GRMLBASE
+++ b/etc/grml/fai/config/hooks/updatebase.GRMLBASE
@@ -11,6 +11,15 @@ if [ "$FAI_ACTION" = "softupdate" ] ; then
    ## we want to use our own sources.list:
    skiptask updatebase
 
+   ## taken from FAI's lib/updatebase:
+   # some packages must access /proc even in chroot environment
+   mount -t proc proc $FAI_ROOT/proc
+   # some packages must access /sys even in chroot environment
+   mount -t sysfs sysfs $FAI_ROOT/sys
+   # if we are using udev, also mount it into $FAI_ROOT
+   [ -f /etc/init.d/udev ] && mount --bind /dev $FAI_ROOT/dev
+   mount -t devpts devpts $FAI_ROOT/dev/pts
+
    ## make sure we don't start any daemons - removed
    ## later on via /etc/grml/fai/config/scripts/GRMLBASE/98-clean-chroot
    if ! [ -r $target/usr/sbin/policy-rc.d ] ; then