1#!/bin/rc 2 3# desc: create a boot floppy or configure hard disk to boot plan 9 4# prereq: copydist 5 6switch($1) { 7case go 8 echo 9 echo 'Initializing Plan 9 FAT configuration partition (9fat)' 10 echo 11 12 fat=(/dev/sd*/9fat) 13 fat=$fat(1) 14 disk=`{echo $fat | sed 's:/dev/::;s:/9fat::'} 15 bootfs=`{echo $fs | sed 's:/dev/(sd..)/(.*):\1!\2:'} 16 bootfat=`{echo $fs | sed 's:/dev/(sd..)/(.*):\1!9fat:'} 17 if(! test -f /dev/$disk/9fat) { 18 echo 'You have no 9fat partition. Can''t setup booting.' 19 exit 20 } 21 22 if(! test -f /tmp/plan9.ini) { 23 { 24 sfs=`{echo $fs | sed 's;/dev;#S;'} 25 if(~ $fstype fossil fossil+venti){ 26 echo bootfile'='$bootfat!9pcf 27 echo 'bootargs=local!'^$sfs 28 echo 'bootdisk=local!'^$sfs 29 } 30 if not { 31 echo bootfile'='$bootfs!/386/9pcdisk 32 echo 'bootdisk=local!'^$sfs 33 } 34 if(~ $fstype fossil+venti){ 35 venti=`{echo $ventiarena | sed 's;/dev;#S;'} 36 echo venti'='^$venti 37 } 38 grep -v '(^\[)|menuitem|adisk|bootfile|bootdisk|bootargs|nobootprompt|mouseport|vgasize|monitor|cdboot' /tmp/plan9.orig 39 echo 'mouseport='^$mouseport 40 echo 'monitor='^$monitor 41 echo 'vgasize='^$vgasize 42 } >/tmp/plan9.ini 43 } 44 if(! test -f /tmp/plan9ini.bak) 45 cp /tmp/plan9.ini /tmp/plan9ini.bak 46 47 need9fatformat=no 48 if(! isfat /dev/$disk/9fat) 49 need9fatformat=yes 50 if not if(! mount -c /srv/dos /n/9fat /dev/$disk/9fat >[2]/dev/null) 51 need9fatformat=yes 52 if not if(! test -f /n/9fat/plan9.ini) 53 need9fatformat=yes 54 55 if(~ $need9fatformat yes){ 56 log Initializing Plan 9 FAT partition. 57 disk/format -r 2 -d -b /386/pbs \ 58 /dev/$disk/9fat /n/newfs/386/9load 59 # silently install pbslba if the partition is way into the disk. 60 # it''s our only hope. only need this for >8.5GB into the disk. 61 # but... 62 # there are so few non-LBA bioses out 63 # there anymore that we'll do this even if we're only 2GB into 64 # the disk. it's just not worth the headaches of dealing with 65 # crappy bioses that don't address the whole 8.5GB properly 66 67 9fatoffset=`{grep '^part 9fat ' /dev/$disk/ctl | awk '{print $4}'} 68 if(! ~ $#9fatoffset 1) { 69 echo 'could not find plan 9 partition.' 70 echo 'cannot happen' 71 exit bad 72 } 73 if(test $9fatoffset -gt 2097152) # 2GB 74 disk/format -b /386/pbslba /dev/$disk/9fat 75 76 mount -c /srv/dos /n/9fat /dev/$disk/9fat 77 } 78 79 if(! test -f /n/9fat/4e){ 80 logprog cp /n/newfs/386/9load /n/9fat/9load 81 logprog cp /n/newfs/386/9pcf /n/9fat/9pcf 82 if(test -f /n/9fat/plan9.ini && ! test -f /n/9fat/plan9-3e.ini) 83 logprog mv /n/9fat/plan9.ini /n/9fat/plan9-3e.ini 84 if(test -f /n/9fat/9pcdisk && ! test -f /n/9fat/9pc3e) 85 logprog mv /n/9fat/9pcdisk /n/9fat/9pc3e 86 87 awk -f /bin/inst/mkini.awk >/n/9fat/plan9.ini 88 >/n/9fat/4e 89 } 90 91 echo 92 echo 'There are myriad ways to boot a Plan 9 system.' 93 echo 'You can use any of the following.' 94 echo 95 echo ' floppy - create a boot floppy' 96 echo ' plan9 - make the plan 9 disk partition the default for booting' 97 echo ' win9x - add a plan 9 option to windows 9x boot menu' 98 echo ' winnt - add a plan 9 option to windows nt/2000/xp boot manager' 99 echo 100 echo 'If you are upgrading an extant third edition installation and booting' 101 echo 'from something other than a floppy, you needn''t run anything here.' 102 echo 'Just type ctl-d.' 103 104 oldbootsetup=$didbootsetup 105 didbootsetup=1 106 export didbootsetup 107 prompt 'Enable boot method' floppy plan9 win9x winnt 108 109 if(! boot$rd){ 110 didbootsetup=$oldbootsetup 111 export didbootsetup 112 } 113 114case checkdone 115 xxxfat=(/dev/sd*/9fat) 116 if(! isfat $xxxfat(1) || ! ~ $didbootsetup 1){ 117 bootsetup=ready 118 export bootsetup 119 } 120} 121