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|
#!/bin/rc
# prereq: mountfs configdist
# desc: locate and mount the distribution
fn domount{
if(! test -e $mountmedia(2))
logprog $srvmedia
unmount /n/distmedia >[2]/dev/null
logprog $mountmedia
}
fn exitifdone{
if(test -d /n/dist/dist/plan9front)
exit
}
fn havedist {
test -d $1/dist/plan9front || test -f $1/9front.iso || test -f $1/9front.iso.bz2
}
fn trycdimage{
if(test -f $1){
rm -f /srv/9660.dist
unmount /n/dist >[2]/dev/null
9660srv 9660.dist >[2]/dev/null
logprog mount /srv/9660.dist /n/dist $1
exitifdone
mountdist=notdone
export mountdist
exit notdone
}
}
fn trycdimagebz2 {
if(test -f $1){
mkdir -p /n/newfs/dist
echo -n 'bunzip2 < '^$1^' >/n/newfs/dist/9front.iso'
bunzip2 < $1 >/n/newfs/dist/_9front.iso &&
mv /n/newfs/dist/_9front.iso /n/newfs/dist/9front.iso
echo
trycdimage /n/newfs/dist/9front.iso
mountdist=notdone
export mountdist
exit notdone
}
}
switch($1){
case checkready
if(! ~ $distisfrom local && ! ~ $download done){
mountdist=notdone
export mountdist
}
if(! ~ $#mountmedia 0 1){
if(domount){
mountdist=done
export mountdist
if(./mountdist checkdone)
exit
}
srvmedia=()
mountmedia=()
mountdist=ready
export srvmedia mountmedia mountdist
}
case go
fat=()
x9660=()
echo Please wait... Scanning storage devices...
parts=`{ls /dev/sd*/* /srv/sd*/*.iso >[2]/dev/null |
grep -v '/(plan9.*|nvram|ctl|log|raw)$'}
for (i in $parts) {
echo -n ' '^$i
t=`{fstype $i}
switch($t){
case dos
fat=($fat $i)
case 9660
x9660=($x9660 $i)
}
echo
}
echo
echo The following storage media were detected.
echo Choose the one containing the distribution.
echo
for(i in $parts){
switch($i){
case $fat
echo ' '^$i^' (microsoft fat)'
case $x9660
echo ' '^$i^' (iso9660 cdrom)'
}
}
echo
mountstatus=x
while(! ~ $mountstatus ''){
default=()
if(! ~ $#cdboot 0)
default=(-d /)
prompt $default 'Distribution disk' $fat $x9660 $fs /
disk=$rd
srvmedia=()
mountmedia=()
switch($disk){
case /
mountmedia=(mount /srv/boot /n/distmedia)
case $fs
mountmedia=(bind /n/newfs /n/distmedia)
case $fat
srvmedia=(dossrv)
mountmedia=(mount /srv/dos /n/distmedia $disk)
case $x9660
srvmedia=(9660srv)
mountmedia=(mount /srv/9660 /n/distmedia $disk)
case *
echo Unknown disk type '(cannot happen)'
exit oops
}
export srvmedia mountmedia
domount
mountstatus=$status
}
first=yes
dir=/
while(~ $first yes || ! havedist /n/distmedia/$dir){
if(~ $first yes){
echo
echo Which directory contains the distribution?
echo 'Any of the following will suffice (in order of preference):'
echo ' - the root directory of the cd image'
echo ' - the directory containing 9front.iso'
echo ' - the directory containing 9front.iso.bz2'
echo
first=no
}
prompt -d $dir 'Location of archives'
dir=$rd
if(~ $#dir 0)
dir=/
if(! ~ $#dir 1)
dir=$"dir
if(! havedist /n/distmedia/$dir)
echo 'No distribution found in '^`{cleanname /$dir}
}
distmediadir=$dir
export distmediadir
case checkdone
if(! ~ $#distmediadir 1){
mountdist=notdone
export mountdist
exit notdone
}
if(! havedist /n/distmedia/$distmediadir && ! havedist /n/newfs/dist){
mountdist=notdone
export mountdist
exit notdone
}
exitifdone
if(test -d /n/distmedia/$distmediadir/dist/plan9front){
bind /n/distmedia/$distmediadir /n/dist
exitifdone
mountdist=notdone
export mountdist
exit notdone
}
trycdimage /n/distmedia/$distmediadir/9front.iso
trycdimage /n/newfs/dist/9front.iso
trycdimagebz2 /n/distmedia/$distmediadir/9front.iso.bz2
trycdimagebz2 /n/newfs/dist/9front.iso.bz2
mountdist=notdone
export mountdist
exit notdone
}
|
