tools/livecd-iso-to-disk.sh | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
New commits:
commit 9ec836f0f0f1c5848c3f9625d9d1e63b940cb792
Author: Jeremy Katz <[EMAIL PROTECTED]>
Date: Tue Mar 4 21:33:11 2008 -0500
Add support to set up persistent overlay
Add support for persistent overlay. Patch is from Douglas
McClendon <[EMAIL PROTECTED]> with style tweaks from me
diff --git a/tools/livecd-iso-to-disk.sh b/tools/livecd-iso-to-disk.sh
index b62792e..00465e3 100644
--- a/tools/livecd-iso-to-disk.sh
+++ b/tools/livecd-iso-to-disk.sh
@@ -2,6 +2,8 @@
# Convert a live CD iso so that it's bootable off of a USB stick
# Copyright 2007 Red Hat, Inc.
# Jeremy Katz <[EMAIL PROTECTED]>
+#
+# overlay/persistence enhancements by Douglas McClendon <[EMAIL PROTECTED]>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -20,7 +22,7 @@
export PATH=/sbin:/usr/sbin:$PATH
usage() {
- echo "$0 [--reset-mbr] [--noverify] <isopath> <usbstick device>"
+ echo "$0 [--reset-mbr] [--noverify] [--overlay-size-mb <size>] <isopath>
<usbstick device>"
exit 1
}
@@ -149,6 +151,10 @@ fi
while [ $# -gt 2 ]; do
case $1 in
+ --overlay-size-mb)
+ overlaysizemb=$2
+ shift
+ ;;
--noverify)
noverify=1
;;
@@ -229,6 +235,17 @@ echo "Updating boot config file"
# adjust label and fstype
sed -i -e "s/CDLABEL=[^ ]*/$USBLABEL/" -e "s/rootfstype=[^
]*/rootfstype=$USBFS/" $USBMNT/$SYSLINUXPATH/isolinux.cfg
+if [ -n "$overlaysizemb" ]; then
+ echo "Initializing persistent overlay file"
+ OVERFILE="overlay-$( /lib/udev/vol_id -l $USBDEV )-$( /lib/udev/vol_id -u
$USBDEV )"
+ dd if=/dev/null of=$USBMNT/LiveOS/$OVERFILE \
+ count=1 bs=1M seek=$overlaysizemb
+ sed -i -e "s/liveimg/liveimg overlay=${USBLABEL}/" \
+ $USBMNT/$SYSLINUXPATH/isolinux.cfg
+ sed -i -e "s/\ ro\ /\ rw\ /" \
+ $USBMNT/$SYSLINUXPATH/isolinux.cfg
+fi
+
echo "Installing boot loader"
if [ "$USBFS" = "vfat" -o "$USBFS" = "msdos" ]; then
# syslinux expects the config to be named syslinux.cfg
--
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