rc/bin/inst/mountdist

   1 #!/bin/rc
   2
   3 # prereq: mountfs configdist
   4 # desc: locate and mount the distribution
   5
   6 fn domount{
   7         if(! test -e $mountmedia(2))
   8                 logprog $srvmedia
   9         unmount /n/distmedia >[2]/dev/null
  10         logprog $mountmedia
  11 }
  12
  13 fn exitifdone{
  14         if(test -f /n/dist/dist/replica/plan9.db)
  15                 exit
  16 }
  17
  18 fn trycdimage{
  19         if(test -f $1){
  20                 rm -f /srv/9660.dist
  21                 unmount /n/dist
  22                 9660srv 9660.dist >[2]/dev/null
  23                 logprog mount /srv/9660.dist /n/dist $1
  24                 exitifdone
  25                 mountdist=notdone
  26                 export mountdist
  27                 exit notdone
  28         }
  29 }
  30
  31 fn trycdimagebz2 {
  32         if(test -f $1){
  33                 echo -n 'bunzip2 < '^$1^' >/n/newfs/dist/plan9.iso'
  34                 bunzip2 < $1 >/n/newfs/dist/_plan9.iso &&
  35                 mv /n/newfs/dist/_plan9.iso /n/newfs/dist/plan9.iso
  36                 echo
  37                 trycdimage /n/newfs/dist/plan9.iso
  38                 mountdist=notdone
  39                 export mountdist
  40                 exit notdone
  41         }
  42 }
  43
  44 fn havedist {
  45         test -f $1/dist/replica/plan9.db ||
  46         test -f $1/plan9.iso ||
  47         test -f $1/plan9.iso.bz2
  48 }
  49
  50 switch($1){
  51 case checkready
  52         if(! ~ $distisfrom local && ! ~ $download done){
  53                 mountdist=notdone
  54                 export mountdist
  55         }
  56         if(! ~ $#mountmedia 0 1){
  57                 if(domount){
  58                         mountdist=done
  59                         export mountdist
  60                         if(mountdist checkdone)
  61                                 exit
  62                 }
  63                 srvmedia=()
  64                 mountmedia=()
  65                 mountdist=ready
  66                 export srvmedia mountmedia mountdist
  67         }
  68
  69 case go
  70         fat=()
  71         ext2=()
  72         x9660=()
  73         fossil=()
  74
  75         echo Please wait... Scanning storage devices...
  76
  77         parts=`{ls /dev/sd??/* >[2]/dev/null | grep -v '/(plan9.*|ctl|log|raw)$'}
  78         for (i in $parts) {
  79                 echo -n '       '^$i
  80                 n=`{echo $i | sed 's;/;_;g'}
  81                 if(! test -f /tmp/localpart.$n)
  82                         dd -if $i -bs 2048 -count 32 -of /tmp/localpart.$n >[2]/dev/null
  83                 if(isfat /tmp/localpart.$n)
  84                         fat=($fat $i)
  85                 if(isext2 /tmp/localpart.$n)
  86                         ext2=($ext2 $i)
  87                 if(is9660 /tmp/localpart.$n)
  88                         x9660=($x9660 $i)
  89                 if(isfossil $i)
  90                         fossil=($fossil $i)
  91                 echo
  92         }
  93         echo
  94         echo The following storage media were detected.
  95         echo Choose the one containing the distribution.
  96         echo
  97         for(i in $parts){
  98                 switch($i){
  99                 case $fat
 100                         echo    '       '^$i^' (microsoft fat)'
 101                 case $ext2
 102                         echo    '       '^$i^' (linux ext2)'
 103                 case $x9660
 104                         echo    '       '^$i^' (iso9660 cdrom)'
 105                 case $fossil
 106                         echo    '       '^$i^' (plan9 fossil)'
 107                 }
 108         }
 109         echo
 110
 111         mountstatus=x
 112         while(! ~ $mountstatus ''){
 113                 prompt -w '' 'Distribution disk' $fat $x9660 $fossil
 114                 disk=$rd
 115
 116                 srvmedia=()
 117                 mountmedia=()
 118                 switch($disk){
 119                 case $fs
 120                         mountmedia=(bind /n/newfs /n/distmedia)
 121                 case $fat
 122                         srvmedia=(dossrv)
 123                         mountmedia=(mount /srv/dos /n/distmedia $disk)
 124                 case $ext2
 125                         srvmedia=(ext2srv -r)
 126                         mountmedia=(mount /srv/ext2 /n/distmedia $disk)
 127                 case $x9660
 128                         srvmedia=(9660srv)
 129                         mountmedia=(mount /srv/9660 /n/distmedia $disk)
 130                 case $fossil
 131                         echo 'srv fossil.mountdist' > /tmp/fossi.conf
 132                         echo 'fsys main config '^$disk >> /tmp/fossil.conf
 133                         echo 'fsys main open -AWVP' >> /tmp/fossil.conf
 134                         echo 'fsys main' >> /tmp/fossil.conf
 135                         srvmedia=(fossil/fossil -c '. /tmp/fossil.conf')
 136                         mountmedia=(mount /srv/fossil.mountdist /n/distmedia)
 137                 case *
 138                         echo Unknown disk type '(cannot happen)'
 139                         exit oops
 140                 }
 141                 export srvmedia mountmedia
 142                 domount
 143                 mountstatus=$status
 144         }
 145
 146         first=yes
 147         dir=/
 148         while(~ $first yes || ! havedist /n/distmedia/$dir){
 149                 if(~ $first yes){
 150                         echo
 151                         echo Which directory contains the distribution?
 152                         echo 'Any of the following will suffice (in order of preference):'
 153                         echo '  - the root directory of the cd image'
 154                         echo '  - the directory containing plan9.iso'
 155                         echo '  - the directory containing plan9.iso.bz2'
 156                         echo 'Typing `browse'' will put you in a shell that you can use to'
 157                         echo 'look for the directory.'
 158                         echo
 159                         first=no
 160                 }
 161
 162                 prompt -d browse 'Location of archives'
 163                 dir=$rd
 164                 if(~ $dir browse){
 165                         echo This is a simple shell.  Commands are:
 166                         echo '  cd directory    - change to directory'
 167                         echo '  lc                              - list contents of current directory'
 168                         echo '  exit                    - exit shell'
 169                         echo
 170                         echo 'Move to the directory containing the distribution'
 171                         echo 'and then exit.'
 172                         echo
 173                         oifs=$ifs
 174                         ifs=$nl
 175                         dir=`{cdsh -r /n/distmedia}
 176                         ifs=$oifs
 177                 }
 178                 if(~ $#dir 0)
 179                         dir=safdsfdsfdsf
 180                 if(! ~ $#dir 1)
 181                         dir=$"dir
 182                 if(! havedist /n/distmedia/$dir)
 183                         echo 'No distribution found in '^`{cleanname /$dir}
 184         }
 185
 186         distmediadir=$dir
 187         export distmediadir
 188
 189 case checkdone
 190         if(! ~ $#distmediadir 1){
 191                 mountdist=notdone
 192                 export mountdist
 193                 exit notdone
 194         }
 195         if(! havedist /n/distmedia/$distmediadir && ! havedist /n/newfs/dist){
 196                 mountdist=notdone
 197                 export mountdist
 198                 exit notdone
 199         }
 200
 201         exitifdone
 202
 203         if(test -f /n/distmedia/$distmediadir/dist/replica/plan9.db){
 204                 bind /n/distmedia/$distmediadir /n/dist
 205                 bind -a /n/dist/386/bin /bin
 206                 bind -a /n/dist/rc/bin /bin
 207                 exitifdone
 208                 mountdist=notdone
 209                 export mountdist
 210                 exit notdone
 211         }
 212
 213         trycdimage /n/distmedia/$distmediadir/plan9.iso
 214         trycdimage /n/newfs/dist/plan9.iso
 215
 216         trycdimagebz2 /n/distmedia/$distmediadir/plan9.iso.bz2
 217         trycdimagebz2 /n/newfs/dist/plan9.iso.bz2
 218
 219         mountdist=notdone
 220         export mountdist
 221         exit notdone
 222 }