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