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simplify QI GTA03 boot-SD size discovery

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This patch uses fdisk instead of dmesg to determine the size of
the uSD card. This should be less fragile and is much simpler
than the previous solution.

Signed-off-by: Werner Almesberger <werner@openmoko.org>
This commit is contained in:
Werner Almesberger 2009-02-28 11:04:47 +00:00 committed by Andy Green
parent 0363beaa02
commit 1cb7b0b53c
1 changed files with 2 additions and 28 deletions
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30
qiboot/6410-partition-sd.sh
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@ -50,34 +50,8 @@ if [ ! -z "`grep $1 /proc/mounts`" ] ; then
exit 2
fi
# set CUT_COLUMN for each OS
# set USE_SED=some editing command
# default: use cat as a no-op
USE_SED='cat'
case "$(lsb_release --short --description)" in
Ubuntu\ 7*|Debian\ *)
CUT_COLUMN=5
;;
Ubuntu\ 8.04*)
CUT_COLUMN=5
USE_SED='sed s/^\[[[:space:]]*/[/'
;;
*)
CUT_COLUMN=4
;;
esac
DMESG_LINE=$(dmesg | ${USE_SED} | grep "$1" | grep "512-byte hardware" | tail -n 1)
SECTORS=$(echo "${DMESG_LINE}" | cut -d' ' -f"${CUT_COLUMN}")
if ! echo "${SECTORS}" | grep '^[[:digit:]]\+$'
then
echo "problem finding size for /dev/$1 check CUT_COLUMN value for your os"
echo "CUT_COLUMN=${CUT_COLUMN} --> ${SECTORS}"
echo "dmesg line was:"
echo "${DMESG_LINE}"
exit 3
fi
bytes=`echo p | fdisk /dev/$1 2>&1 | sed '/^Disk.*, \([0-9]*\) bytes/s//\1/p;d'`
SECTORS=`expr $bytes / 512`
if [ $SECTORS -le 0 ] ; then
echo "problem finding size for /dev/$1"