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|
# -*- shell-script -*-
_log_msg()
{
if [ "$quiet" = "y" ]; then return; fi
echo "$@"
}
log_success_msg()
{
_log_msg "Success: $@"
}
log_failure_msg()
{
_log_msg "Failure: $@"
}
log_warning_msg()
{
_log_msg "Warning: $@"
}
log_begin_msg()
{
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "TEXT $@"
fi
_log_msg "Begin: $@ ..."
}
log_end_msg()
{
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "SUCCESS ok"
fi
_log_msg "Done."
update_progress
}
update_progress()
{
[ -d /dev/.initramfs ] || return
if [ -z "$PROGRESS_STATE" ]; then
export PROGRESS_STATE=0
fi
PROGRESS_STATE=$(($PROGRESS_STATE + 1))
echo "PROGRESS_STATE=${PROGRESS_STATE}" > /dev/.initramfs/progress_state
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "PROGRESS $PROGRESS_STATE"
fi
}
panic()
{
if [ -x /sbin/usplash_write ]; then
/sbin/usplash_write "QUIT"
fi
modprobe -q i8042
modprobe -q atkbd
echo $@
PS1='(initramfs) ' /bin/sh </dev/console >/dev/console 2>&1
}
maybe_break()
{
if [ x$1 = x${break} ]; then
panic "Spawning shell within the initramfs"
fi
}
render()
{
eval "echo -n \${$@}"
}
set_initlist()
{
unset initlist
for si_x in ${initdir}/*; do
if [ ! -x ${si_x} ]; then
continue
fi
initlist="${initlist} $(basename ${si_x})"
done
}
reduce_satisfied()
{
deplist="$(render array_${1})"
unset tmpdeplist
for rs_y in ${deplist}; do
if [ ! -f ${initdir}/${rs_y} ]; then
continue
fi
tmpdeplist="${tmpdeplist} ${rs_y}"
done
deplist=${tmpdeplist}
for rs_x in ${runlist}; do
pop_list_item ${rs_x} ${deplist}
deplist=${tmppop}
done
eval array_${1}=\"${deplist}\"
}
get_prereqs()
{
set_initlist
for gp_x in ${initlist}; do
tmp=$(${initdir}/${gp_x} prereqs)
eval array_${gp_x}=\"${tmp}\"
done
}
count_unsatisfied()
{
set - ${@}
return ${#}
}
# Removes $1 from initlist
pop_list_item()
{
item=${1}
shift
set - ${@}
unset tmppop
# Iterate
for pop in ${@}; do
if [ ${pop} = ${item} ]; then
continue
fi
tmppop="${tmppop} ${pop}"
done
}
# This function generates the runlist, so we clear it first.
reduce_prereqs()
{
unset runlist
set_initlist
set - ${initlist}
i=$#
# Loop until there's no more in the queue to loop through
while [ ${i} -ne 0 ]; do
oldi=${i}
for rp_x in ${initlist}; do
reduce_satisfied ${rp_x}
count_unsatisfied $(render array_${rp_x})
cnt=${?}
if [ ${cnt} -eq 0 ]; then
runlist="${runlist} ${rp_x}"
pop_list_item ${rp_x} ${initlist}
initlist=${tmppop}
i=$((${i} - 1))
fi
done
if [ ${i} -eq ${oldi} ]; then
panic "PANIC: Circular dependancy. Exiting."
fi
done
}
call_scripts()
{
for cs_x in ${runlist}; do
${initdir}/${cs_x}
# allow boot scripts to modify exported boot paramaters
if [ -e /conf/param.conf ]; then
. /conf/param.conf
fi
done
}
run_scripts()
{
initdir=${1}
get_prereqs
reduce_prereqs
call_scripts
}
# Load custom modules first
load_modules()
{
if [ -e /conf/modules ]; then
cat /conf/modules | while read m; do
# Skip empty lines
if [ -z "$m" ]; then
continue
fi
# Skip comments - d?ash removes whitespace prefix
com=$(printf "%.1s" "${m}")
if [ "$com" = "#" ]; then
continue
fi
modprobe -q $m
done
fi
}
# lilo compatibility
parse_numeric() {
case $1 in
"")
return
;;
/*)
return
;;
*:*)
minor=${1#*:}
major=${1%:*}
;;
[0-9][0-9][0-9])
minor=$((0x${1#?}))
major=$((0x${1%??}))
;;
*)
minor=$((0x${1#??}))
major=$((0x${1%??}))
;;
esac
mknod /dev/root b ${major} ${minor}
ROOT=/dev/root
}
|
