Add PREREQ header to grmls initramfs-tools script

[grml-live.git] / etc / grml / fai / live-initramfs / grml-script.init-top

diff --git a/etc/grml/fai/live-initramfs/grml-script.init-top b/etc/grml/fai/live-initramfs/grml-script.init-top
index 43942ba..462642d 100755 (executable)
--- a/etc/grml/fai/live-initramfs/grml-script.init-top
+++ b/etc/grml/fai/live-initramfs/grml-script.init-top
@@ -1,8 +1,27 @@
 #!/bin/sh
 
+# prereq header {{{
+# without this header booting will fail with:
+# "PANIC: Circular dependancy.  Exiting."
+PREREQ=""
+prereqs()
+{
+        echo "$PREREQ"
+}
+case $1 in
+# get pre-requisites
+prereqs)
+        prereqs
+        exit 0
+        ;;
+esac
+# }}}
+
 # helper functions {{{
 
-echo "debug: scripts/init-top/grml running"
+if grep -qe debug -qe verbose /proc/cmdline 2>/dev/null ; then
+   echo "debug: scripts/init-top/grml running">/dev/console
+fi
 
 # get boot command line
 CMDLINE="$(cat /proc/cmdline)"
@@ -91,6 +110,11 @@ FAILED=" ${NORMAL}[${RED}fail${NORMAL}]"
 # welcome splash {{{
 
 DISTRI="$(getbootparam 'distri' 2>/dev/null)"
+
+if [ -r /etc/grml_version ] ; then
+   GRML_VERSION="$(cat /etc/grml_version)"
+fi
+
 if [ -n "$DISTRI" ] ; then
 SPLASH="
 ${RED} $DISTRI
@@ -106,13 +130,18 @@ ${RED} | |  _| |_) | |\/| | |
 ${RED} | |_| |  _ <| |  | | |___
 ${RED}  \____|_| \_\_|  |_|_____|
 
-${WHITE}grml.org - Linux for sysadmins and texttool users.
-${NORMAL}"
+${WHITE}grml.org - Linux for sysadmins and texttool users.${NORMAL}"
 fi
 
 echo ""
 echo "${WHITE}Welcome to"
 echo "$SPLASH"
+echo
+
+if [ -n "$GRML_VERSION" ] ; then
+   log_grml_begin_msg "Running $GRML_VERSION"
+   echo
+fi
 
 # don't output anything if running with bootsplash feature
 if checkbootparam "splash" ; then
@@ -120,15 +149,22 @@ if checkbootparam "splash" ; then
 fi
 # }}}
 
+## /proc/cmdline handling {{{
 # No kernel messages while probing modules:
 if ! grep -qe debug -qe verbose /proc/cmdline 2>/dev/null ; then
    [ -r /proc/sys/kernel/printk ] && echo "0" > /proc/sys/kernel/printk
 fi
 
+# Make sure we support squashfs:
+if ! grep -q squashfs /proc/filesystems ; then
+   modprobe -q squashfs || log_grml_failure_msg "Warning: look like you do not have support for squashfs"
+fi
+
 if grep -q 'boot=live' /proc/cmdline 2>/dev/null ; then
    log_grml_begin_msg "Finished early booting sequence." ; echo "$SUCCESS"
    log_grml_begin_msg "Searching for GRML file, this might take a few seconds..."
-   echo 
+   echo
 fi
+## }}}
 
 # vim: foldmethod=marker expandtab ai ft=sh