ref: 8ac587c8340d050e20bc25217b3a33227816a5ad
parent: 1aa79968bbf19af6d6b9043b6fe841369550eff4
author: 9ferno <gophone2015@gmail.com>
date: Sun Oct 17 01:19:08 EDT 2021
ported diskparts from 9front
--- /dev/null
+++ b/dis/diskparts
@@ -1,0 +1,50 @@
+#!/dis/sh
+load std
+
+disks=$*
+
+# note that really big disks (e.g., aoe devices) may have no mbr
+# partition table because the mbr partition table can't cope with large
+# block numbers, so we may have to examine the data file with prep if
+# there's no plan9 file. beware that `disk/prep -p data' on a disk with
+# no plan 9 partition table will delete all extant partitions.
+fn setup {+ disk=$1
+ if {ftest -f $disk^/data && ftest -f $disk^/ctl} {+ { @{disk/fdisk -p $disk^/data} |+ grep -v '^delpart ' >$disk^/ctl } >[2]/dev/null
+ }
+
+ if {ftest -f $disk^/plan9} {+ parts=($disk^/plan9*)
+ }{ parts=($disk^/data) }+
+ for part in $parts {+ if{ftest -f $part} {+ { disk/prep -p $part |+ grep -v '^delpart ' >$disk^/ctl } >[2]/dev/null
+ }
+ }
+}
+
+if{~ $#disks 0}{+ # set up any disk partitions
+ or { ftest -e /dev/sdctl } { bind -b '#S' /dev }+ for disk in /dev/sd* { setup $disk }+ sysname=`{cat /dev/sysname}+
+ # set up any fs(3) partitions
+ if {! ftest -e /dev/fs/ctl && ftest -e '#k/fs'} {+ bind -b '#k' /dev
+ }
+
+ # is this needed?
+ #if {~ $#sysname 1 && ! ~ $sysname '' &&+ # test -r /cfg/$sysname/fsconfig && test -w /dev/fs/ctl}{+ # awk '{print $0; fflush}' /cfg/$sysname/fsconfig >/dev/fs/ctl+ #}
+} {+ for disk in $disks {+ setup $disk
+ }
+}