plan9fox/sys/src/9/boot/bootrc

188 lines
3 KiB
Text

# TODO
# settime
# handle rootspec
# handle rootdir
# clean rc environment before running init(8)
# kfs
# caching
rfork e
# boot methods
mlocal = (configlocal connectlocal)
mtcp = (configtcp connecttcp)
mtab = (mlocal mtcp)
config=1
connect=2
bootargs=()
. /rc/lib/conf.rc
. /rc/lib/menu.rc
. /rc/lib/local.rc
. /rc/lib/tcp.rc
cputype=`{cat '#e'/cputype}
fn fatal {
echo $*
exit $"*
}
fn must {
$* || fatal $"*^': '^$status
}
fn devinit{
bind -qa '#c' /dev
bind -qa '#S' /dev
bind -qa '#f' /dev
bind -qa '#k' /dev
bind -qa '#æ' /dev
}
fn usbinit{
if(test -e '#u'){
bind -a '#u' /dev
usb/usbd
}
}
fn kbmap{
if(! ~ $#kbmap 0){
bind -a '#κ' /dev
cat $kbmap > /dev/kbmap
}
}
fn readmethod{
echo
echo Storage devices
for(i in /dev/sd[A-Z][0-9]*){
echo -n local!^$i' '
echo `{sed 's/inquiry[ ]+//g; q' $i/ctl}\
partitions: `{cat $i/ctl | grep part | awk '{print $2}'}
}
found=0
while(~ $found 0){
timeo=5
resp=()
while(~ $#resp 0){
if(~ $#pcload 0)
echo -n 'root is from: '
if not
echo -n 'kernel is at: '
resp=`{read}
if(! ~ $status ''){
bootconf # set configuration from file
if(! ~ $#nobootprompt 0)
bootargs=$nobootprompt
resp=$bootargs
}
if(~ $resp !rc){
rc -i
resp=()
}
timo=0
}
method=`{echo $resp | awk -F! '{print $1}'}
NF=`{echo $resp | awk -F! '{print NF}'}
for(i in `{seq 1 $#mtab}){
if(~ $mtab($i) m^$method)
found = $i
}
if(~ $found 0){
echo method $method not found
}
}
methodarg = `{echo $resp | sed 's/^[A-Za-z]+!(.*)$/\1/'}
mp = $$mtab($found)
}
fn authentication{
if(! test -f /srv/factotum){
# in pcload we only need to read the kernel
if(~ $pcload 1)
user=none
x=(auth/factotum -sfactotum)
if(~ $cpuflag 1)
x=($x -kS)
if not
x=($x -u)
if(! ~ $#authaddr 0)
x=($x -a $authaddr)
if(! ~ $#debugfactotum 0)
x=($x -p)
must $x
}
}
fn swapproc{
if(test -x '#c'/swap)
echo -n start > '#c'/swap
}
fn main{
readmethod
$mp($config)
switch($method){
case local
islocal=1
case hybrid
ishybrid=1
}
# authentication agent
authentication
# connect to the root file system
$mp($connect)
must mount -c /srv/boot /root
if(~ $pcload 1){
echo reboot /root/$kern >/dev/reboot
fatal kernel load failed: $kern
}
swapproc
# remove part of our temporary root
unmount /$cputype/bin /bin
/mnt/broot/$cputype/bin/unmount /rc/bin /bin
/mnt/broot/$cputype/bin/unmount /boot /bin
/mnt/broot/$cputype/bin/unmount /
# create the name space, mount the root fs
/mnt/broot/$cputype/bin/bind / /
/mnt/broot/$cputype/bin/mount -ac '#s/boot' /
# remove the remaining temporary root
/mnt/broot/$cputype/bin/unmount /mnt/broot
rootdir=/root
if(~ $#init 0){
init=/$cputype/init
if(~ $cpuflag 1)
init=($init -c)
if not
init=($init -t)
# TODO handle mflag
}
exec $init
}
bind -q '#p' /proc
devinit
usbinit # set up usb keyboard, mouse, and disk, if any
kbmap
configlocal # add partitions and binds
while(){
@{rfork n; main}
}