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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
# image-vm.bbclass
# (loosly based off image-live.bbclass Copyright (C) 2004, Advanced Micro Devices, Inc.)
#
# Create an image which can be placed directly onto a harddisk using dd and then
# booted.
#
# This uses syslinux. extlinux would have been nice but required the ext2/3
# partition to be mounted. grub requires to run itself as part of the install
# process.
#
# The end result is a 512 boot sector populated with an MBR and partition table
# followed by an msdos fat16 partition containing syslinux and a linux kernel
# completed by the ext2/3 rootfs.
#
# We have to push the msdos parition table size > 16MB so fat 16 is used as parted
# won't touch fat12 partitions.
inherit live-vm-common
do_bootdirectdisk[depends] += "dosfstools-native:do_populate_sysroot \
virtual/kernel:do_deploy \
syslinux:do_populate_sysroot \
syslinux-native:do_populate_sysroot \
parted-native:do_populate_sysroot \
mtools-native:do_populate_sysroot \
${PN}:do_image_${VM_ROOTFS_TYPE} \
"
IMAGE_TYPEDEP_vmdk = "${VM_ROOTFS_TYPE}"
IMAGE_TYPEDEP_vdi = "${VM_ROOTFS_TYPE}"
IMAGE_TYPEDEP_qcow2 = "${VM_ROOTFS_TYPE}"
IMAGE_TYPEDEP_hdddirect = "${VM_ROOTFS_TYPE}"
IMAGE_TYPES_MASKED += "vmdk vdi qcow2 hdddirect"
VM_ROOTFS_TYPE ?= "ext4"
ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${VM_ROOTFS_TYPE}"
# Used by bootloader
LABELS_VM ?= "boot"
ROOT_VM ?= "root=/dev/sda2"
# Using an initramfs is optional. Enable it by setting INITRD_IMAGE_VM.
INITRD_IMAGE_VM ?= ""
INITRD_VM ?= "${@'${DEPLOY_DIR_IMAGE}/${INITRD_IMAGE_VM}-${MACHINE}.cpio.gz' if '${INITRD_IMAGE_VM}' else ''}"
do_bootdirectdisk[depends] += "${@'${INITRD_IMAGE_VM}:do_image_complete' if '${INITRD_IMAGE_VM}' else ''}"
BOOTDD_VOLUME_ID ?= "boot"
BOOTDD_EXTRA_SPACE ?= "16384"
DISK_SIGNATURE ?= "${DISK_SIGNATURE_GENERATED}"
DISK_SIGNATURE[vardepsexclude] = "DISK_SIGNATURE_GENERATED"
build_boot_dd() {
HDDDIR="${S}/hdd/boot"
HDDIMG="${S}/hdd.image"
IMAGE=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hdddirect
populate_kernel $HDDDIR
if [ "${PCBIOS}" = "1" ]; then
syslinux_hddimg_populate $HDDDIR
fi
if [ "${EFI}" = "1" ]; then
efi_hddimg_populate $HDDDIR
fi
BLOCKS=`du -bks $HDDDIR | cut -f 1`
BLOCKS=`expr $BLOCKS + ${BOOTDD_EXTRA_SPACE}`
# Remove it since mkdosfs would fail when it exists
rm -f $HDDIMG
mkdosfs -n ${BOOTDD_VOLUME_ID} -S 512 -C $HDDIMG $BLOCKS
mcopy -i $HDDIMG -s $HDDDIR/* ::/
if [ "${PCBIOS}" = "1" ]; then
syslinux_hdddirect_install $HDDIMG
fi
chmod 644 $HDDIMG
ROOTFSBLOCKS=`du -Lbks ${ROOTFS} | cut -f 1`
TOTALSIZE=`expr $BLOCKS + $ROOTFSBLOCKS`
END1=`expr $BLOCKS \* 1024`
END2=`expr $END1 + 512`
END3=`expr \( $ROOTFSBLOCKS \* 1024 \) + $END1`
echo $ROOTFSBLOCKS $TOTALSIZE $END1 $END2 $END3
rm -rf $IMAGE
dd if=/dev/zero of=$IMAGE bs=1024 seek=$TOTALSIZE count=1
parted $IMAGE mklabel msdos
parted $IMAGE mkpart primary fat16 0 ${END1}B
parted $IMAGE unit B mkpart primary ext2 ${END2}B ${END3}B
parted $IMAGE set 1 boot on
parted $IMAGE print
awk "BEGIN { printf \"$(echo ${DISK_SIGNATURE} | fold -w 2 | tac | paste -sd '' | sed 's/\(..\)/\\x&/g')\" }" | \
dd of=$IMAGE bs=1 seek=440 conv=notrunc
OFFSET=`expr $END2 / 512`
if [ "${PCBIOS}" = "1" ]; then
dd if=${STAGING_DATADIR}/syslinux/mbr.bin of=$IMAGE conv=notrunc
fi
dd if=$HDDIMG of=$IMAGE conv=notrunc seek=1 bs=512
dd if=${ROOTFS} of=$IMAGE conv=notrunc seek=$OFFSET bs=512
cd ${DEPLOY_DIR_IMAGE}
rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect
ln -s ${IMAGE_NAME}.hdddirect ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect
}
python do_bootdirectdisk() {
validate_disk_signature(d)
set_live_vm_vars(d, 'VM')
if d.getVar("PCBIOS", True) == "1":
bb.build.exec_func('build_syslinux_cfg', d)
if d.getVar("EFI", True) == "1":
bb.build.exec_func('build_efi_cfg', d)
bb.build.exec_func('build_boot_dd', d)
}
def generate_disk_signature():
import uuid
signature = str(uuid.uuid4())[:8]
if signature != '00000000':
return signature
else:
return 'ffffffff'
def validate_disk_signature(d):
import re
disk_signature = d.getVar("DISK_SIGNATURE", True)
if not re.match(r'^[0-9a-fA-F]{8}$', disk_signature):
bb.fatal("DISK_SIGNATURE '%s' must be an 8 digit hex string" % disk_signature)
DISK_SIGNATURE_GENERATED := "${@generate_disk_signature()}"
run_qemu_img (){
type="$1"
qemu-img convert -O $type ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.$type
ln -sf ${IMAGE_NAME}.$type ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.$type
}
create_vmdk_image () {
run_qemu_img vmdk
}
create_vdi_image () {
run_qemu_img vdi
}
create_qcow2_image () {
run_qemu_img qcow2
}
python do_vmimg() {
if 'vmdk' in d.getVar('IMAGE_FSTYPES', True):
bb.build.exec_func('create_vmdk_image', d)
if 'vdi' in d.getVar('IMAGE_FSTYPES', True):
bb.build.exec_func('create_vdi_image', d)
if 'qcow2' in d.getVar('IMAGE_FSTYPES', True):
bb.build.exec_func('create_qcow2_image', d)
}
addtask bootdirectdisk before do_vmimg
addtask vmimg after do_bootdirectdisk before do_image_complete
do_vmimg[depends] += "qemu-native:do_populate_sysroot"
|
