>
> Didn't say impossible, I said tricky.
here's the code. it's not hard at all. the meat of
the code just is one line. the rest is error checking.
a very similar script would turn all aoe devices into
sd devices via sdaoe, though i always end up doing
that by hand.
- erik
#!/bin/rc
# turn usb disks into sd devices via sdloop(3)
rfork e
disk = ()
disks=()
name=()
fn picksd{
p=`{awk '{print $1}' < /dev/sdctl}
r=()
for(i in u v w x y z)
if(~ $#r 0 && ! ~ sd$i $p)
r = $i
echo $r
}
test -e /dev/usb || bind -a '#u' /dev || {
echo no '#u/usb' >[1=2]
exit nousb
}
test -e /dev/usbdctl || mount -a /srv/usb /dev || {
echo cannot mount /srv/usb >[1=2]
exit nousbd
}
switch($#*){
case 0
;
case 1
disks = $1
case 2
disks = $1
name = $2
case *
echo usage: usbsd ' [disk [sdname]]' >[1=2]
exit usage
}
if(~ $#disks 0){
if(! test -e /dev/sdU*/data){
echo no usb disks >[1=2]
exit nodisk
}
disks = `{echo /dev/sdU*/data}
}
for(d in $disks){
if(~ $d /dev/sdU*.[0-9]*/data && test -e $d){
if(~ $#name 0)
name=`{picksd u}
if(~ $#name 0){
echo no available devices >[2=1];
exit nodev
}
echo config switch on spec $name type loop/$d >/dev/sdctl
}
if not
echo $d does not exist >[2=1]
}
exit ''
