From 4a11b07deedbebdeb576889272a1e0ebbebb1ad3 Mon Sep 17 00:00:00 2001 From: "pyther@pyther.net" Date: Sun, 23 Jan 2011 18:06:21 -0500 Subject: Improve logic which checks whether blockdevice is a raid device device_is_raid now uses dev major number to determine if a device is a raid device. A major ID of 8 is a /dev/sd? device whereas a major ID of 9 is a 'metadata' (raid) device. Signed-off-by: Dieter Plaetinck --- src/core/libs/lib-blockdevices-filesystems.sh | 19 ++++++------------- src/core/libs/lib-ui-interactive.sh | 2 +- 2 files changed, 7 insertions(+), 14 deletions(-) diff --git a/src/core/libs/lib-blockdevices-filesystems.sh b/src/core/libs/lib-blockdevices-filesystems.sh index 8573b19..d00ef81 100644 --- a/src/core/libs/lib-blockdevices-filesystems.sh +++ b/src/core/libs/lib-blockdevices-filesystems.sh @@ -919,19 +919,12 @@ get_blockdevice_size () # $1 blockdevice (ex: /dev/md0 or /dev/sda1) -# return true when blockdevice is an md raid, otherwise return a unset value -mdraid_is_raid() -{ - local israid - if [ -z $1 ]; then - # Don't call mdadm on empty blockdevice parameter! - israid="" - elif [ "$(mdadm --query $1 | cut -d':' -f2)" == " is not an md array" ]; then - israid="" - else - israid=true - fi - echo $israid +# All MD RAID block devices have a major id of 9 +device_is_raid() { + [[ -b "$1" ]] || die_error "device_is_raid needs a blockdevice as \$1 ($1 given)" + [[ -f /proc/mdstast ]] || return 1 + local devmajor=$(stat -c %t "$1") + (( devmajor == 9 )) } # $1 md raid blockdevice (ex: /dev/md0) diff --git a/src/core/libs/lib-ui-interactive.sh b/src/core/libs/lib-ui-interactive.sh index 881af90..829556a 100644 --- a/src/core/libs/lib-ui-interactive.sh +++ b/src/core/libs/lib-ui-interactive.sh @@ -878,7 +878,7 @@ interactive_grub() { bootdev=$(mount | grep $var_TARGET_DIR/boot | cut -d' ' -f 1) # check if bootdev or PART_ROOT is on a md raid array # This dialog is only shown when we detect / or /boot on a raid device. - if [ -n "$(mdraid_is_raid $bootdev)" -o -n "$(mdraid_is_raid $PART_ROOT)" ]; then + if device_is_raid $bootdev || device_is_raid $PART_ROOT; then ask_yesno "Do you have your system installed on software raid?\nAnswer 'YES' to install grub to another hard disk." no if [ $? -eq 0 ]; then onraid=true -- cgit v1.2.3-54-g00ecf