diff options
Diffstat (limited to 'recipes/udev/udev-141/init')
| -rw-r--r-- | recipes/udev/udev-141/init | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/recipes/udev/udev-141/init b/recipes/udev/udev-141/init index 9e11f08989..efe44708ca 100644 --- a/recipes/udev/udev-141/init +++ b/recipes/udev/udev-141/init @@ -14,6 +14,7 @@ export TZ=/etc/localtime [ -d /sys/class ] || exit 1 [ -r /proc/mounts ] || exit 1 [ -x /sbin/udevd ] || exit 1 +[ -f /etc/default/udev ] && . /etc/default/udev [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf kill_udevd() { @@ -34,9 +35,18 @@ LANG=C awk "\$2 == \"/dev\" && \$4 == \"tmpfs\" { exit 1 }" /proc/mounts && { mkdir -m 0755 /dev/shm } -if [ -e /etc/dev.tar ]; then - (cd /; tar xf /etc/dev.tar) - not_first_boot=1 +if [ "$DEVCACHE" != "" ]; then + # Invalidate udev cache if the kernel or its bootargs/cmdline have changed + [ -x /bin/uname ] && /bin/uname -mrspv > /tmp/uname || touch /tmp/uname + [ -r /proc/cmdline ] && cat /proc/cmdline > /tmp/cmdline || touch /tmp/cmdline + [ -r /proc/atags ] && cat /proc/atags > /tmp/atags || touch /tmp/atags + if [ -e $DEVCACHE ] && \ + cmp -s /tmp/uname /etc/udev/saved.uname && \ + cmp -s /tmp/cmdline /etc/udev/saved.cmdline && \ + cmp -s /tmp/atags /etc/udev/saved.atags; then + (cd /; tar xf $DEVCACHE) + not_first_boot=1 + fi fi # make_extra_nodes @@ -50,10 +60,21 @@ kill_udevd > "/dev/null" 2>&1 if [ "$not_first_boot" != "" ];then /sbin/udevadm trigger --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux --subsystem-nomatch=platform (/sbin/udevadm settle --timeout=3; /sbin/udevadm control env STARTUP=)& + if [ "$DEVCACHE" != "" ]; then + rm -f /tmp/uname + rm -f /tmp/cmdline + rm -f /tmp/atags + fi else /sbin/udevadm trigger /sbin/udevadm settle - (cd /; tar cf /etc/dev.tar dev) + if [ "$DEVCACHE" != "" ]; then + echo -n " and populating dev cache" + (cd /; tar cf $DEVCACHE dev) + mv /tmp/uname /etc/udev/saved.uname + mv /tmp/cmdline /etc/udev/saved.cmdline + mv /tmp/atags /etc/udev/saved.atags + fi fi echo |