From 632c24fb791b624d859e0c210c538830a5fdb4ba Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Thu, 7 May 2015 13:29:32 +0200
Subject: wibble

---
 src/fripost-partman-udeb/base.sh | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/fripost-partman-udeb/base.sh b/src/fripost-partman-udeb/base.sh
index b6af4d1..163134f 100644
--- a/src/fripost-partman-udeb/base.sh
+++ b/src/fripost-partman-udeb/base.sh
@@ -65,7 +65,7 @@ seed_urandom() {
 
     if [ -f "$seed" ]; then
         log "/dev/urandom has already been seeded since start-up"
-        return
+        return 0
     fi
 
     [ -r $poolfile ] && bytes=$(cat $poolfile)
@@ -226,6 +226,7 @@ fripost_mkpart() {
           | grep -m1 "^[0-9]:${start}s:" \
           | sed 's/:.*//' )
 
+    wait_for_device "${device}${part}"
     while [ $# -gt 3 ]; do
         flag="$4"
         log "Partition flag for ${device}${part} ($name): $flag"
@@ -237,7 +238,6 @@ fripost_mkpart() {
         shift
     done
 
-    wait_for_device "${device}${part}"
     echo ${device}${part}
 }
 
@@ -418,18 +418,26 @@ copy_authorized_keys() {
 
 
 ##############################################################################
-# Add a progress bar to mkfs(8).
+# Add a progress bar to mkfs(8).  Exit gracefully if $device is empty
 #
 # Usage: fripost_mkfs <type> <device> [<options>]
 
 fripost_mkfs() {
     local type="$1" device="$2" fifo pid line stage step total=
+    [ "$device" ] || return 0
     shift; shift
 
     log "Formatting $device as $type; options $@"
+    wait_for_device "$device"
+
+    if ! [ "$type" = ext2 -o "$type" = ext3 -o "$type" = ext4 ]; then
+        # XXX: The parsing has been tested with mkfs.ext{2,3,4} only.
+        /sbin/mkfs."$type" "$@" "$device"
+        return 0
+    fi
+
     db_subst fripost/mkfs_progress_title DEVICE "$device"
     db_subst fripost/mkfs_progress_title TYPE   "$type"
-    wait_for_device "$device"
 
     fifo=$(mktemp -u)
     /bin/mknod "$fifo" p || exit 1
@@ -437,7 +445,6 @@ fripost_mkfs() {
     /sbin/mkfs."$type" "$@" "$device" | tr '\b' '\n' > "$fifo" & pid=$!
 
     while read -u 7 line; do
-        # XXX: The parsing has been tested with mkfs.ext{2,3,4} only.
         case "$line" in
             *:*/*)
                 [ "$total" ] && db_progress STOP
@@ -472,7 +479,7 @@ fripost_mkfs() {
 
 
 ##############################################################################
-# Set up the fstab
+# Set up the fstab.  Exit gracefully if $device is empty
 #
 # Usage: fripost_fstab <device> <mountpoint> <type> [<options>]
 #
@@ -481,6 +488,7 @@ fripost_mkfs() {
 
 fripost_fstab() {
     local device="$1" mp="$2" type="$3" options="${4:-defaults}" pass
+    [ "$device" ] || return 0
 
     if [ "$mp" = / ]; then
         log "Got root device, $device"
@@ -562,14 +570,14 @@ fripost_mount_partitions() {
         if [ "$type" = swap ]; then
             /sbin/swapon "$dev"
         elif [ / = $(expr substr "$mp" 1 1) ]; then
-            mkdir "/target$mp"
+            mkdir -p "/target$mp"
             /bin/mount -t "$type" -o "$options" "$dev" "/target$mp"
         fi
       done
 
     # Post-installation scripts may use the install CD as a local mirror
     # for APT packages.
-    cdrom=$( sed -rn 's#^(\S+) /cdrom\s.*#\1#p' /proc/mounts | head -1 )
+    cdrom=$( sed -rn '\#^(\S+) /cdrom\s.*# {s//\1/p; q}' /proc/mounts )
     [ "$cdrom" ] || fatal "Error: Is /cdrom a mountpoint?"
     fripost_fstab_addentry "$cdrom" /media/cdrom0 udf,iso9660 user,noauto 0 0
     mkdir -p /target/media/cdrom0
@@ -602,7 +610,7 @@ fripost_rmpart () {
     local device="$1" part="$2"
     n=$( /sbin/parted -sm "$device" p \
        | sed -nr "/^[0-9].*:$part:[^:]*;$/ s/:.*//p" )
-    [ "$n" ] || return
+    [ "$n" ] || return 0
     log "Removing partition $n ($part) from $device"
     /sbin/parted -sm "$device" rm "$n"
 }
-- 
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