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authormd@Linux.IT <md@Linux.IT>2005-02-06 01:07:13 +0100
committerGreg KH <gregkh@suse.de>2005-04-26 23:24:20 -0700
commit882b97455b4f8e3859abc6e6357b0e233cf4a0c8 (patch)
tree6ca91fe6a64953e5635cf4d659ad1b4ad005c4a8 /extras
parentfd3eeb7502d9ed52569bdb3e01a50ecbc132035e (diff)
[PATCH] raid-devfs.sh: devfs names for hardware RAID controllers
Diffstat (limited to 'extras')
-rw-r--r--extras/raid-devfs.sh50
1 files changed, 50 insertions, 0 deletions
diff --git a/extras/raid-devfs.sh b/extras/raid-devfs.sh
new file mode 100644
index 0000000000..796232b497
--- /dev/null
+++ b/extras/raid-devfs.sh
@@ -0,0 +1,50 @@
+#!/bin/sh -e
+#
+# Copyright (c) 2004 Marco d'Itri <md@linux.it>
+# Copyright (c) 2004 Piotr Roszatycki <dexter@debian.org>
+#
+# Usage:
+# KERNEL="cciss!*", PROGRAM="/etc/udev/scripts/raid-devfs.sh %k", NAME="%c{1}", SYMLINK="%k"
+# KERNEL="ida!*", PROGRAM="/etc/udev/scripts/raid-devfs.sh %k", NAME="%c{1}", SYMLINK="%k"
+# KERNEL="rd!*", PROGRAM="/etc/udev/scripts/raid-devfs.sh %k", NAME="%c{1}", SYMLINK="%k"
+
+get_dev_number_cciss() {
+ grep '^cciss/' /proc/driver/cciss/* | cat -n | \
+ sed -n "/cciss\/$1:/s/cciss.*//p"
+}
+
+get_dev_number_ida() {
+ grep '^ida/' /proc/driver/cpqarray/* | cat -n | \
+ sed -n "/ida\/$1:/s/ida.*//p"
+}
+
+get_dev_number_rd() {
+ grep '^ */dev/rd/' /proc/rd/*/initial_status | cat -n | \
+ sed -n "/rd\/$1:/s/\/dev\/rd.*//p"
+}
+
+get_dev_number() {
+ dev=$1
+ num=$(eval $(echo get_dev_number_$TYPE $dev))
+ [ "$num" ] || exit 1
+ echo $(($num - 1))
+}
+
+TYPE=${1%%/*}
+NAME=${1#*/}
+
+# abort if there was no match
+[ "$TYPE" != "$1" ] || exit 1
+
+case "$NAME" in
+ *p*)
+ LONG_NAME=disc$(get_dev_number ${NAME%%p*})/part${NAME##*p}
+ ;;
+ *)
+ LONG_NAME=disc$(get_dev_number $NAME)/disc
+ ;;
+esac
+
+echo "$TYPE/$LONG_NAME"
+exit 0
+