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[PATCH] raid-devfs.sh: devfs names for hardware RAID controllers

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md@Linux.IT 2005-02-06 01:07:13 +01:00 committed by Greg KH
parent fd3eeb7502
commit 882b97455b
1 changed files with 50 additions and 0 deletions
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extras/raid-devfs.sh Normal file
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#!/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