mirror of
git://projects.qi-hardware.com/xburst-tools.git
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aa813c24d5
The hack to find the number of sectors turns out to be sensitive to the host kernel. This is a workaround until we find something in /proc or /sys that has the same info in a more accessible way. Signed-off-by: Christopher Hall <hsw@openmoko.com>
150 lines
3.4 KiB
Bash
Executable File
150 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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# 6410 SD Boot formatter
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# (C) 2008 Openmoko, Inc
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# Author: Andy Green <andy@openmoko.com>
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# LAYOUT
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# Partition table, then
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# VFAT takes up remaining space here
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# then...
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#
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EXT3_ROOTFS_SECTORS=$(( 64 * 1024 * 2 ))
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EXT3_BACKUP_FS_SECTORS=$(( 8 * 1024 * 2 ))
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QI_ALLOCATION=$(( 256 * 2 ))
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#
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# lastly fixed stuff: 8KByte initial boot, sig, padding
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# ----------------------
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echo "s3c6410 bootable SD partitioning utility"
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echo "(C) Openmoko, Inc Andy Green <andy@openmoko.com>"
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echo
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# these are fixed in iROM
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QI_INITIAL=$(( 8 * 2 ))
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SIG=1
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FDISK_SCRIPT=/tmp/_fds
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if [ -z "$1" -o -z "$2" -o -z "$3" ] ; then
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echo "This formats a SD card for usage on SD Card boot"
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echo " on 6410 based systems"
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echo
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echo "Usage:"
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echo
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echo "$0 <device for SD, eg, sde> <sd|sdhc> <bootloader>"
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exit 1
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fi
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if [ $2 = "sdhc" ] ; then
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PADDING=1025
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else
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PADDING=1
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fi
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EXT3_TOTAL_SECTORS=$(( $EXT3_ROOTFS_SECTORS + $EXT3_BACKUP_FS_SECTORS ))
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REARSECTORS=$(( $QI_ALLOCATION + $QI_INITIAL + $SIG + $PADDING ))
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if [ ! -z "`grep $1 /proc/mounts`" ] ; then
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echo "ERROR $1 seems to be mounted, that ain't right"
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exit 2
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fi
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# set CUT_COLUMN for each OS
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case "$(lsb_release --short --description)" in
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Ubuntu\ 7*)
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CUT_COLUMN=5
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;;
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Ubuntu\ 8.04*)
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CUT_COLUMN=5
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;;
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*)
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CUT_COLUMN=4
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;;
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esac
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DMESG_LINE=$(dmesg | grep "$1" | grep "512-byte hardware" | tail -n 1)
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SECTORS=$(echo "${DMESG_LINE}" | cut -d' ' -f"${CUT_COLUMN}")
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if ! echo "${SECTORS}" | grep '^[[:digit:]]\+$'
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then
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echo "problem finding size for /dev/$1 check CUT_COLUMN value for your os"
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echo "CUT_COLUMN=${CUT_COLUMN} --> ${SECTORS}"
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echo "dmesg line was:"
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echo "${DMESG_LINE}"
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exit 3
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fi
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if [ $SECTORS -le 0 ] ; then
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echo "problem finding size for /dev/$1"
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exit 3
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fi
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echo "$1 is $SECTORS 512-byte blocks"
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if [ -z "$4" ] ; then
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FATSECTORS=$(( $SECTORS - $EXT3_TOTAL_SECTORS + $REARSECTORS ))
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FATMB=$(( $FATSECTORS / 2048 - 16 ))
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echo "Creating VFAT section $FATMB MB"
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# create the script for fdisk
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# clear the existing partition table
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echo "o" >$FDISK_SCRIPT
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# add main VFAT storage partition
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echo "n" >>$FDISK_SCRIPT
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echo "p" >>$FDISK_SCRIPT
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echo "1" >>$FDISK_SCRIPT
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# first partition == 1
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echo "1" >>$FDISK_SCRIPT
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echo "+$FATMB"M >>$FDISK_SCRIPT
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# add the normal EXT3 rootfs
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echo "n" >>$FDISK_SCRIPT
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echo "p" >>$FDISK_SCRIPT
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echo "2" >>$FDISK_SCRIPT
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# continue after last
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echo "" >>$FDISK_SCRIPT
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echo "+$(( $EXT3_ROOTFS_SECTORS / 2048 ))"M >>$FDISK_SCRIPT
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# add the backup EXT3 rootfs
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echo "n" >>$FDISK_SCRIPT
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echo "p" >>$FDISK_SCRIPT
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echo "3" >>$FDISK_SCRIPT
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# continue after last
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echo "" >>$FDISK_SCRIPT
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echo "+$(( $EXT3_BACKUP_FS_SECTORS / 2048 ))"M >>$FDISK_SCRIPT
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# commit it and exit
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echo "w" >>$FDISK_SCRIPT
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echo "q" >>$FDISK_SCRIPT
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# do the partitioning action
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fdisk /dev/$1 <$FDISK_SCRIPT
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# prep the filesystems
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mkfs.vfat "/dev/$1"1 -n main-vfat
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mkfs.ext3 "/dev/$1"2 -L rootfs
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mkfs.ext3 "/dev/$1"3 -L backupfs
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fi # if -z $4
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# copy the full bootloader image to the right place after the
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# partitioned area
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dd if=$3 of=/dev/$1 bs=512 count=512 \
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seek=$(( $SECTORS - $REARSECTORS ))
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dd if=$3 of=/dev/$1 bs=512 \
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seek=$(( $SECTORS - $REARSECTORS + $QI_ALLOCATION )) \
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count=$QI_INITIAL
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dd if=/dev/zero of=/dev/$1 bs=512 \
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seek=$(( $SECTORS - $REARSECTORS + $QI_ALLOCATION + $QI_INITIAL )) \
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count=$(( $SIG + $PADDING ))
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# done
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echo
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echo "**** completed"
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