91 lines
2.4 KiB
Bash
Executable File
91 lines
2.4 KiB
Bash
Executable File
#!/bin/rc
|
|
# restore arena# [dev] - load venti with arenas on dev, stored one per track
|
|
# starting with arena#. must have run fmtarenas before restoring
|
|
# the first arena in the partition.
|
|
# this must be run on the venti server, without venti running on the
|
|
# affected arena partition(s).
|
|
rfork ne
|
|
if (test -e /sys/lib/backup/funcs)
|
|
. /sys/lib/backup/funcs
|
|
switch ($#*) {
|
|
case 1
|
|
case 2
|
|
rdev=$2
|
|
case *
|
|
echo usage: $0 arena-num '[dev]' >[1=2]
|
|
exit usage
|
|
}
|
|
starena=$1
|
|
if (! ~ $starena [0-9] [0-9][0-9] [0-9][0-9][0-9]) {
|
|
echo $0: bad starting arena: $starena >[1=2]
|
|
exit bad-arena-num
|
|
}
|
|
|
|
# clear any dregs from a previous run
|
|
unmount /mnt/cd >[2]/dev/null
|
|
sleep 1
|
|
kill cdfs | rc
|
|
sleep 1
|
|
cdfs -d $rdev || exit
|
|
cd /mnt/cd
|
|
|
|
#for (track in d[0-9]*)
|
|
# venti/wrarena $track # slow; takes about 12½ mins. per GB
|
|
|
|
arena = $starena
|
|
# set arenabase for arenastart
|
|
arenabase = `{ venti/printarenapart $arenas | sed -e 's/.*arenabase=//' -e 1q }
|
|
kill printarenapart | rc # printarenapart leaves a process behind
|
|
# echo arenabase $arenabase
|
|
|
|
skipping=yes
|
|
for (track in d[0-9]*) {
|
|
if (~ track 'd[0-9]*') {
|
|
echo $0: no tracks in /mnt/cd >[1=2]
|
|
exit no-tracks
|
|
}
|
|
if (~ $skipping yes) {
|
|
# verify that first track is the expected one
|
|
type=`{file $track}
|
|
switch ($"type) {
|
|
case *': venti arena'
|
|
name=`{ venti/printarena $track >[2=1] |
|
|
sed -e 's/.*name=([^ =]+).*/\1/' -e 1q }
|
|
case *
|
|
name=NOT-A-VENTI-ARENA
|
|
}
|
|
kill printarena | rc # printarena leaves a process behind
|
|
|
|
echo -n first track is $"name'; is that right? '
|
|
switch (`{read}) {
|
|
case [yY]*
|
|
skipping=no
|
|
case skip
|
|
skipping=yes
|
|
case *
|
|
echo aborting, arena is unchanged. >[1=2]
|
|
exit 'wrong track'
|
|
}
|
|
}
|
|
|
|
if (! ~ $skipping yes) {
|
|
# copy each track into its slot in the arena partition
|
|
venti/printarena $track >[2=1] | sed 1q | tr -d '\12'
|
|
kill printarena | rc # printarena leaves a process behind
|
|
|
|
off = `{arenastart $arena}
|
|
# echo -n writing $track to $arenas at 8K-block offset $off:
|
|
sleep 3
|
|
echo
|
|
# argh! something (cdfs?) appends 60K of *stuff* to each
|
|
# arena on optical disc. restrain dd.
|
|
count=`{ echo $arenasize/$blocksize | bc }
|
|
pump -i 1048576 -o 65536 -d 10 <$track |
|
|
dd -quiet 1 -count $count -bs $blocksize -of $arenas \
|
|
-oseek $off
|
|
arena = `{hoc -e $arena+1}
|
|
}
|
|
}
|
|
# when all done, must run venti/checkarenas, fmtisect, fmtbloom, fmtindex,
|
|
# and (the big one) venti/buildindex -b /cfg/pie/venti.conf
|