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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
#!/bin/sh
export DOMI_DISK_FILE="domi_disk"
export DOMI_DISK_SIZE="4096" # in megabytes
export DOMI_SWAP_SIZE="256" # in megabytes
export DOMI_ROOT_SIZE=""
export DOMI_FSTYPE="ext2"
export DOMI_DISK_SPARSE=1
########################################################################
# helper functions
function init_root() {
local dev="$1"
local type="${2-ext2}"
local label="${3-${DOMI_NAME}-root}"
case "$type" in
ext2)
/sbin/mke2fs -L "$label" -q -F "$dev" \
|| exit 1
;;
ext3)
/sbin/mke2fs -L "$label" -j -q -F "$dev" \
|| exit 1
;;
reiserfs)
/sbin/mkreiserfs --label "$label" -q -f "$dev" \
|| exit 1
;;
xfs)
/sbin/mkfs.xfs -L "$label" -q -f "$dev" \
|| exit 1
;;
*)
/sbin/mkfs -t "$type" "$dev" \
|| exit 1
;;
esac
}
function init_swap() {
local dev="$1"
local label="${2-${DOMI_NAME}-swap}"
mkswap -L "$label" $dev || exit 1
}
# handle 1024*1024 vs. 1000*1000 issue ...
function mib2mb() {
local mib="$1"
echo $(( $mib * 1024 * 1024 / 1000 / 1000 ))
}
# setup environment
export LANG="POSIX"
unset $(set | grep ^LC_ | cut -d= -f1)
# create work dir
export DOMI_WORK="${TMPDIR-/tmp}/${0##*/}-$$"
export DOMI_MNT="${DOMI_WORK}/mnt"
mkdir "${DOMI_WORK}" || exit 1
mkdir "${DOMI_MNT}" || exit 1
if test "$DOMI_DISK_SPARSE" != ""; then
echo "setup disk (sparse file ${DOMI_DISK_FILE})"
rm -f "${DOMI_DISK_FILE}"
dd if="/dev/zero" of="${DOMI_DISK_FILE}" \
bs="$(( 1024 * 1024 ))" \
seek="$(( ${DOMI_DISK_SIZE} - 1 ))" \
count=1
else
echo "setup disk (image file ${DOMI_DISK_FILE})"
dd if="/dev/zero" of="${DOMI_DISK_FILE}" \
bs="$(( 1024 * 1024 ))" \
count="${DOMI_DISK_SIZE}"
fi
for i in $(seq 0 63); do
DOMI_DISK_DEV="/dev/loop${i}"
if losetup -a | grep -q "${DOMI_DISK_DEV}:"; then
continue
fi
losetup "${DOMI_DISK_DEV}" "${DOMI_DISK_FILE}" || exit 1
break;
done
# partitioning
if test "${DOMI_ROOT_SIZE}" = ""; then
DOMI_ROOT_SIZE=$(( ${DOMI_DISK_SIZE} - ${DOMI_SWAP_SIZE} ))
fi
parted -s ${DOMI_DISK_DEV} mklabel msdos >/dev/null
ps="0"; pe="$(( $ps + ${DOMI_ROOT_SIZE} ))"
parted -s ${DOMI_DISK_DEV} mkpart primary ext2 \
$(mib2mb $ps) $(mib2mb $pe) >/dev/null
ps="$pe"; pe="$(( $ps + ${DOMI_SWAP_SIZE} ))"
parted -s ${DOMI_DISK_DEV} mkpart primary linux-swap \
$(mib2mb $ps) $(mib2mb $pe) >/dev/null
parted -s ${DOMI_DISK_DEV} set 1 boot on >/dev/null
parted -s ${DOMI_DISK_DEV} print
# activate partitions
DOMI_ROOT_DEV="/dev/mapper/$(basename ${DOMI_DISK_DEV})-part1"
DOMI_SWAP_DEV="/dev/mapper/$(basename ${DOMI_DISK_DEV})-part2"
kpartx -v -p "-part" -a ${DOMI_DISK_DEV}
init_root $DOMI_ROOT_DEV $DOMI_FSTYPE
init_swap $DOMI_SWAP_DEV
mount ${DOMI_ROOT_DEV} ${DOMI_MNT} || exit 1
echo ${DOMI_MNT}
|
