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|
#!/bin/rc
dosdisk=`{ls /dev/sd??/dos >[2]/dev/null | sed 1q | sed 's!.*/(.*)/dos!\1!'}
if(~ $#dosdisk 0 || ! c: || ! test -f /n/c:/autoexec.bat || ! test -f /n/c:/config.sys) {
echo 'Could not find autoexec.bat or config.sys on the first FAT disk.'
exit bad
}
for (i in autoexec config msdos)
if(test -f /n/c:/$i.p9) {
echo 'A Plan 9 backup already exists; will not edit system files again.'
exit bad
}
for (i in autoexec.bat config.sys msdos.sys)
if(! cp /n/c:/$i /n/c:/^`{echo $i | sed 's/\.(bat|sys)$/.p9/'}) {
echo 'Could not back up '^$i^'; will not continue.'
exit bad
}
if(! test -d /n/c:/plan9 && ! mkdir /n/c:/plan9) {
echo 'Could not create directory /n/c:/plan9.'
exit bad
}
if(! cp /n/newfs/386/^(9load ld.com 9pcdisk) /tmp/plan9ini.bak /n/c:/plan9) {
echo 'Could not copy Plan 9 boot files into /n/c:/plan9.'
exit bad
}
chmod +w /n/c:/autoexec.bat /n/c:/config.sys /n/c:/msdos.sys
if(grep -si 'Plan ?9' /n/c:/config.sys || grep -si 'Plan ?9' /n/c:/autoexec.bat) {
echo 'Plan 9 entries already in config.sys or autoexec.bat.'
echo 'Not changing them; refer to Plan 9 install documentation'
echo 'to configure manually.'
exit bad
}
if(! grep -si '\[menu\]' /n/c:/config.sys) {
{
echo 1
echo i
echo '[menu]
'
echo 'menuitem=windows, Windows
'
echo 'menudefault=windows
'
echo '
'
echo '[common]
'
echo '
'
echo '[windows]
'
echo .
echo w
echo q
} | ed /n/c:/config.sys >/dev/null >[2]/dev/null
}
{
echo 1
echo '/\[[Mm][Ee][Nn][Uu]\]'
echo '?^[Mm][Ee][Nn][Uu][Ii][Tt][Ee][Mm]='
echo a
echo 'menuitem=plan9, Plan 9 from Bell Labs
'
echo .
echo '$'
echo a
echo '
'
echo '[plan9]
'
echo '
'
echo .
echo w
echo q
} | ed /n/c:/config.sys >/dev/null>[2]/dev/null
{
echo 1
echo i
echo '@echo off
'
echo 'if %config%==plan9 goto plan9
'
echo 'goto notplan9
'
echo ':plan9
'
echo 'plan9\ld '^$dosdisk^'!dos!plan9/9load
'
echo ':notplan9
'
echo .
echo w
echo q
} | ed /n/c:/autoexec.bat >/dev/null>[2]/dev/null
fn zeroopt {
if(grep -s '^'^$1^'=1' /n/c:/msdos.sys) {
{
echo '/^'^$1^'=1/s/=1/=0/'
echo w
echo q
} | ed /n/c:/msdos.sys>/dev/null>[2]/dev/null
}
if not if (grep -s '^'^$1^'=0' /n/c:/msdos.sys)
;
if not {
{
echo 1
echo i
echo '[Options]
'
echo 'Logo=0
'
echo .
echo w
echo q
} | ed /n/c:/msdos.sys>/dev/null>[2]/dev/null
}
}
if(grep -si '^\[paths\]' /n/c:/msdos.sys){ # Windows 9x rather than DOS
zeroopt Logo
# zeroopt BootGUI
}
echo 'Plan 9 added to Windows 9X boot menu.'
exit ''
|
