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|
#!/bin/sh
msg () { [ "${quiet}" != "y" ] && echo $@; }
err () { echo "ERROR: $@"; }
msg ":: Loading Initramfs"
/bin/mount -t sysfs none /sys
/bin/mount -t proc none /proc
read CMDLINE </proc/cmdline
export CMDLINE
# Used so hooks can override params to kinit
export kinit_params=""
export root=""
echo "/bin/modprobe" > /proc/sys/kernel/modprobe
for cmd in $CMDLINE; do
case "$cmd" in
\#*) break ;; # ignore everything after a # in the commandline
[0123456Ss]) export runlevel="$cmd" ;;
single) export runlevel="S" ;; #some people use 'single'
# replace can cause problems for the following entries
# These should only be applied to the lefthand side of the expression
# until we find a fix hardcode the stuff here.
root=*) export "${cmd}";;
md=*) export "${cmd}" ;;
crypto=*) export "${cmd}" ;;
resume2=*) export "${cmd}" ;;
ip=*) export "${cmd}" ;;
nfsaddrs=*) export "${cmd}" ;;
nfsroot=*) export "${cmd}" ;;
# only export stuff that does work with dash :)
*=*) cmd="$(replace "${cmd}" '.' '_')"
cmd="$(replace "${cmd}" '-' '_')"
export "${cmd}"
;;
*) cmd="$(replace "${cmd}" '.' '_')"
cmd="$(replace "${cmd}" '-' '_')"
export "${cmd}=y"
;;
esac
done
if [ "x${disablehooks}" != "x" ]; then
for d in $(replace "${disablehooks}" ','); do
export "hook_${d}=disabled"
done
fi
if [ "x${disablemodules}" != "x" ]; then
for d in $(replace "${disablemodules}" ','); do
export "mod_${d}=disabled"
done
fi
if [ "x${earlymodules}" != "x" ]; then
for m in $(replace "${earlymodules}" ','); do
/bin/modprobe -q $m > /dev/null 2>&1
done
fi
. /config
for m in $MODULES; do
TST=""
eval "TST=\$mod_${m}"
if [ "${TST}" != "disabled" ]; then
/bin/modprobe -q $m > /dev/null 2>&1
fi
done
if [ -e "/hooks" ]; then
for h in $HOOKS; do
TST=""
eval "TST=\$hook_${h}"
if [ "${TST}" != "disabled" ]; then
run_hook () { msg "$h: no run function defined"; }
if [ -e "/hooks/$h" ]; then
. /hooks/$h
msg ":: Running Hook [${h}]"
run_hook
fi
fi
done
fi
if [ "${rootdelay}" != "0" ]; then
msg -n "Waiting for devices to settle..."
/bin/sleep "${rootdelay}"
export rootdelay=0
export kinit_params="$kinit_params rootdelay=0"
msg "done."
fi
if [ "${break}" = "y" ]; then
echo ":: Break requested, type 'exit' to resume operation"
echo " NOTE: klibc contains no 'ls' binary, use 'echo *' instead"
PS1="ramfs$ " /bin/sh -i
fi
if [ ! -e "${root}" ]; then
err "Unable to create/detect root device '${root}'"
echo "Dropping to a recovery shell... type 'exit' to reboot"
echo "NOTE: klibc contains no 'ls' binary, use 'echo *' instead"
echo ""
echo "If the device '${root}' gets created while you are here,"
echo "try adding 'rootdelay=8' or higher to the kernel command-line"
PS1="ramfs$ " /bin/sh -i
msg "Rebooting..."
/bin/reboot
else
msg ":: Initramfs Completed - control passing to kinit"
if [ -f "/message" ]; then
msg "$(cat /message)"
fi
fi
#Special handling if udev is running
udevpid=$(/bin/minips -C udevd -o pid=)
if [ "x${udevpid}" != "x" ]; then
/bin/kill -9 $udevpid
/bin/sleep 0.01
fi
echo "/sbin/modprobe" > /proc/sys/kernel/modprobe
exec /bin/kinit -- "root=${root}" ${kinit_params} "${runlevel}" > /dev/null 2>&1
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