blob: af45115c722fde75e386219504cf503fa1dc6f2d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
#!/bin/sh
set -u
set -e
PROGNAME=$(basename $0)
usage()
{
echo "Create an SD card that boots on an i.MX53/6 board."
echo
echo "Note: all data on the the card will be completely deleted!"
echo "Use with care!"
echo "Superuser permissions may be required to write to the device."
echo
echo "Usage: ${PROGNAME} <sd_block_device>"
echo "Arguments:"
echo " <sd_block_device> The device to be written to"
echo
echo "Example: ${PROGNAME} /dev/mmcblk0"
echo
}
if [ $# -ne 1 ]; then
usage
exit 1
fi
if [ $(id -u) -ne 0 ]; then
echo "${PROGNAME} must be run as root"
exit 1
fi
DEV=${1}
# The partition name prefix depends on the device name:
# - /dev/sde -> /dev/sde1
# - /dev/mmcblk0 -> /dev/mmcblk0p1
if echo ${DEV}|grep -q mmcblk ; then
PART="p"
else
PART=""
fi
PART1=${DEV}${PART}1
PART2=${DEV}${PART}2
# Unmount the partitions if mounted
umount ${PART1} || true
umount ${PART2} || true
# First, clear the card
dd if=/dev/zero of=${DEV} bs=1M count=20
sync
# Partition the card.
# SD layout for i.MX6 boot:
# - Bootloader at offset 1024
# - FAT partition starting at 1MB offset, containing uImage and *.dtb
# - ext2/3 partition formatted as ext2 or ext3, containing the root filesystem.
sfdisk ${DEV} <<EOF
32,480,b
512,,L
EOF
sync
# Copy the bootloader at offset 1024
dd if=output/images/u-boot.imx of=${DEV} obs=512 seek=2
# Prepare a temp dir for mounting partitions
TMPDIR=$(mktemp -d)
# FAT partition: kernel and DTBs
mkfs.vfat ${PART1}
mount ${PART1} ${TMPDIR}
cp output/images/*Image ${TMPDIR}/
cp output/images/*.dtb ${TMPDIR}/ || true
sync
umount ${TMPDIR}
# ext2 partition: root filesystem
mkfs.ext2 ${PART2}
mount ${PART2} ${TMPDIR}
tar -C ${TMPDIR}/ -xf output/images/rootfs.tar
sync
umount ${TMPDIR}
# Cleanup
rmdir ${TMPDIR}
sync
echo Done
|
