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#!/bin/rc
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# desc: subdivide plan 9 disk partition
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# prereq: partdisk
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fn autotype {
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	if(~ $fstype fossil)
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		echo -a 9fat -a nvram -a fossil -a swap
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	if(~ $fstype fossil+venti)
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		echo -a 9fat -a nvram -a arenas -a isect -a fossil -a swap # -a other
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}
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switch($1) {
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case checkready
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	if(! test -f /dev/sd*/plan9*){
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		prepdisk=notdone
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		export prepdisk
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	}
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case go
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	echo 'The following Plan 9 disk partitions were found.'
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	echo
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	disks=(/dev/sd*/plan9*)
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	for (i in $disks){
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		echo $i
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		echo q | disk/prep -r $i >[2]/dev/null
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		echo
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	}
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	if(~ $#disks 1)
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		default=(-d $disks)
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	if not
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		default=()
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	prompt $default 'Plan 9 partition to subdivide' $disks
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	disk=$rd
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	echo 'This is disk/prep; use it to subdivide the Plan 9 partition.'
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	echo 'If it is not yet subdivided, a sensible layout will be suggested;'
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	echo 'you can probably just type ''w'' and then ''q''.'
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	echo
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	disk/prep `{autotype} $disk
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	disk/prep -p $disk >`{basename -d $disk}^/ctl >[2]/dev/null
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case checkdone
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	if(! test -f /dev/sd*/9fat)
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		prepdisk=ready
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	if(! ~ $prepdisk ready){
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		prepdisk=done
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		switch($fstype){
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		case fossil
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			if(! test -f /dev/sd*/fossil* && ! test -f /dev/fs/fossil*)
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				prepdisk=ready
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		case fossil+venti
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			if(! test -f /dev/sd*/fossil* && ! test -f /dev/fs/fossil*)
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				prepdisk=ready
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			if(! test -f /dev/sd*/arenas && ! test -f /dev/fs/arenas*)
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				prepdisk=ready
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			if(! test -f /dev/sd*/isect && ! test -f /dev/fs/isect*)
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				prepdisk=ready
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		}
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	}
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	export prepdisk
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}