On Mon, Mar 26, 2012 at 12:02 PM, Frederick Grose fgrose@gmail.com wrote:
Please note that the current Fedora-17-Beta-TC2-Live images lack some traditional Live CD/USB features.
See this bug report. https://bugzilla.redhat.com/show_bug.cgi?id=740280
/dev/live was a link to the installation partition on the Live USB, such as /dev/sdc1, or /dev/sr0 on a Live CD/DVD.
How would a script determine this partition without human input?
/mnt/live was a convenient mounting of the installation partition filesystem. It allowed easy access to pre-existing content on the Live USB device or to the /LiveOS and /syslinux directories.
The --home-size-mb NNN option of livecd-iso-to-disk produced a /LiveOS/home.img filesystem for the liveuser's home directory.
This feature made possible the --encrypted-home option, which would secure the privacy of a user directory on a Live USB system.
The home.img filesystem was also read/write/delete without consuming the LiveOS overlay. This is important for non-short-term Live USB deployments, such as Sugar on a Stick, where overlay exhaustion can be a significant problem.
Is there a workaround for these (missing) features?
--Fred
This patch restores the lost features:
commit 1580cddaea504efd68c5e10fee70e09d7e81d86b Author: Frederick Grose fgrose@sugarlabs.org Date: Thu Mar 29 16:27:30 2012 -0400
Mount live device on /mnt/live, link it to /dev/live
This enables the mounting of /LiveOS/home.img, if present.
diff --git a/fedora-live-base.ks b/fedora-live-base.ks index 0b14fec..0cf0fb2 100644 --- a/fedora-live-base.ks +++ b/fedora-live-base.ks @@ -88,10 +88,22 @@ touch /.liveimg-configured # Make sure we don't mangle the hardware clock on shutdown ln -sf /dev/null /etc/systemd/system/hwclock-save.service
+findmount() { + local info=() + while read -a info; do + if [[ ${info[4]} == $1 ]]; then + echo ${info[8]} + break; + fi + done < /proc/self/mountinfo +} + # mount live image -if [ -b `readlink -f /dev/live` ]; then +livedev=$(findmount /run/initramfs/live) +if [[ -b $livedev ]]; then mkdir -p /mnt/live - mount -o ro /dev/live /mnt/live 2>/dev/null || mount /dev/live /mnt/live + mount -o ro $livedev /mnt/live 2>/dev/null || mount $livedev /mnt/live + ln -s $livedev /dev/live fi
livedir="LiveOS" @@ -220,7 +232,7 @@ if strstr "`cat /proc/cmdline`" CDLABEL= ; then # io errors due to not being able to get files... #cat /sbin/halt > /dev/null #cat /sbin/reboot > /dev/null -#/usr/sbin/eject -p -m $(readlink -f /dev/live) >/dev/null 2>&1 +#/usr/sbin/eject -p -m $livedev >/dev/null 2>&1 #echo "Please remove the CD from your drive and press Enter to finish restarting" #read -t 30 < /dev/console FOE