54 lines
1.2 KiB
Bash
Executable file
54 lines
1.2 KiB
Bash
Executable file
#!/bin/rc
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disk=`{ls /dev/sd??/plan9 >[2]/dev/null | sed 1q | sed 's!.*/(.*)/plan9!\1!'}
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if(! ~ $#disk 1) {
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echo 'No plan 9 disk found' >[1=2]
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exit
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}
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if(! c: || ! test -f /n/c:/boot.ini) {
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echo 'Could not find NT''s boot.ini on the first FAT disk.' >[1=2]
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exit
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}
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if(test -f /n/c:/boot.p9) {
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echo 'A Plan 9 backup already exists; will not edit boot.ini again.' >[1=2]
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exit
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}
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if(! cp /n/c:/boot.ini /n/c:/boot.p9) {
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echo 'Could not back up boot.ini; will not continue.' >[1=2]
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exit
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}
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chmod +w /n/c:/boot.ini
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if(! grep -si '\[operating systems\]' /n/c:/boot.ini) {
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echo 'Could not parse boot.ini.' >[1=2]
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exit
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}
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if(grep -si 'Plan 9' /n/c:/boot.ini) {
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p9file=`{grep 'Plan 9' /n/c:/boot.ini | sed 1q | sed 's/=.*//'}
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if(! ~ $p9file [Cc]:'\'*) {
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echo 'Unexpected Plan 9 entry in boot.ini already; not continuing.' >[1=2]
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exit
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}
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}
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if not {
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p9file='c:\bootsect.p9'
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echo 'c:\bootsect.p9 = "Plan 9 from Bell Labs"
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' >>/n/c:/boot.ini
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}
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p9file=/n/^`{echo $p9file | sed 's!\\!/!g'}
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if(dd -if /dev/$disk/plan9 -bs 512 -count 1 -of $p9file >/dev/null >[2]/dev/null) {
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echo 'Plan 9 added to Windows NT boot menu.' >[1=2]
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exit
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}
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echo 'Error copying Plan 9 boot sector to file.'
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exit
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