aboutsummaryrefslogtreecommitdiff
path: root/meta/recipes-core/initrdscripts/files/init-install.sh
blob: c5623eeb26724846500de7b95332d5da52c0af7f (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
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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
#!/bin/sh -e
#
# Copyright (C) 2008-2011 Intel
#
# install.sh [device_name] [rootfs_name] [video_mode] [vga_mode]
#

PATH=/sbin:/bin:/usr/sbin:/usr/bin

# We need 20 Mb for the boot partition
boot_size=20

# 5% for the swap
swap_ratio=5

# Get a list of hard drives
hdnamelist=""
live_dev_name=`cat /proc/mounts | grep ${1%/} | awk '{print $1}'`
live_dev_name=${live_dev_name#\/dev/}
# Only strip the digit identifier if the device is not an mmc
case $live_dev_name in
    mmcblk*)
    ;;
    *)
        live_dev_name=${live_dev_name%%[0-9]*}
    ;;
esac

echo "Searching for hard drives ..."

for device in `ls /sys/block/`; do
    case $device in
        loop*)
            # skip loop device
            ;;
        sr*)
            # skip CDROM device
            ;;
        ram*)
            # skip ram device
            ;;
        *)
            # skip the device LiveOS is on
            # Add valid hard drive name to the list
            case $device in
                $live_dev_name*)
                # skip the device we are running from
                ;;
                *)
                    hdnamelist="$hdnamelist $device"
                ;;
            esac
            ;;
    esac
done

TARGET_DEVICE_NAME=""
for hdname in $hdnamelist; do
    # Display found hard drives and their basic info
    echo "-------------------------------"
    echo /dev/$hdname
    if [ -r /sys/block/$hdname/device/vendor ]; then
        echo -n "VENDOR="
        cat /sys/block/$hdname/device/vendor
    fi
    if [ -r /sys/block/$hdname/device/model ]; then
        echo -n "MODEL="
        cat /sys/block/$hdname/device/model
    fi
    if [ -r /sys/block/$hdname/device/uevent ]; then
        echo -n "UEVENT="
        cat /sys/block/$hdname/device/uevent
    fi
    echo
    # Get user choice
    while true; do
        echo -n "Do you want to install this image there? [y/n] "
        read answer
        if [ "$answer" = "y" -o "$answer" = "n" ]; then
            break
        fi
        echo "Please answer y or n"
    done
    if [ "$answer" = "y" ]; then
        TARGET_DEVICE_NAME=$hdname
        break
    fi
done

if [ -n "$TARGET_DEVICE_NAME" ]; then
    echo "Installing image on /dev/$TARGET_DEVICE_NAME ..."
else
    echo "No hard drive selected. Installation aborted."
    exit 1
fi

device=/dev/$TARGET_DEVICE_NAME

#
# The udev automounter can cause pain here, kill it
#
rm -f /etc/udev/rules.d/automount.rules
rm -f /etc/udev/scripts/mount*

#
# Unmount anything the automounter had mounted
#
umount ${device}* 2> /dev/null || /bin/true

if [ ! -b /dev/loop0 ] ; then
    mknod /dev/loop0 b 7 0
fi

mkdir -p /tmp
if [ ! -L /etc/mtab ]; then
    cat /proc/mounts > /etc/mtab
fi

disk_size=$(parted ${device} unit mb print | grep '^Disk .*: .*MB' | cut -d" " -f 3 | sed -e "s/MB//")

grub_version=$(grub-install -v|sed 's/.* \([0-9]\).*/\1/')

if [ $grub_version -eq 0 ] ; then
    bios_boot_size=0
else
    # For GRUB 2 we need separate parition to store stage2 grub image
    # 2Mb value is chosen to align partition for best performance.
    bios_boot_size=2
fi

swap_size=$((disk_size*swap_ratio/100))
rootfs_size=$((disk_size-bios_boot_size-boot_size-swap_size))

boot_start=$((bios_boot_size))
rootfs_start=$((bios_boot_size+boot_size))
rootfs_end=$((rootfs_start+rootfs_size))
swap_start=$((rootfs_end))

# MMC devices are special in a couple of ways
# 1) they use a partition prefix character 'p'
# 2) they are detected asynchronously (need rootwait)
rootwait=""
part_prefix=""
if [ ! "${device#/dev/mmcblk}" = "${device}" ]; then
    part_prefix="p"
    rootwait="rootwait"
fi

if [ $grub_version -eq 0 ] ; then
    bios_boot=''
    bootfs=${device}${part_prefix}1
    rootfs=${device}${part_prefix}2
    swap=${device}${part_prefix}3
else
    bios_boot=${device}${part_prefix}1
    bootfs=${device}${part_prefix}2
    rootfs=${device}${part_prefix}3
    swap=${device}${part_prefix}4
fi

echo "*****************"
[ $grub_version -ne 0 ] && echo "BIOS boot partition size: $bios_boot_size MB ($bios_boot)"
echo "Boot partition size:   $boot_size MB ($bootfs)"
echo "Rootfs partition size: $rootfs_size MB ($rootfs)"
echo "Swap partition size:   $swap_size MB ($swap)"
echo "*****************"
echo "Deleting partition table on ${device} ..."
dd if=/dev/zero of=${device} bs=512 count=35

echo "Creating new partition table on ${device} ..."
if [ $grub_version -eq 0 ] ; then
    parted ${device} mktable msdos
    echo "Creating boot partition on $bootfs"
    parted ${device} mkpart primary ext3 0% $boot_size
else
    parted ${device} mktable gpt
    echo "Creating BIOS boot partition on $bios_boot"
    parted ${device} mkpart bios_boot 0% $bios_boot_size
    parted ${device} set 1 bios_grub on
    echo "Creating boot partition on $bootfs"
    parted ${device} mkpart boot ext3 $boot_start $boot_size
fi

echo "Creating rootfs partition on $rootfs"
[ $grub_version -eq 0 ] && pname='primary' || pname='root'
parted ${device} mkpart $pname ext3 $rootfs_start $rootfs_end

echo "Creating swap partition on $swap"
[ $grub_version -eq 0 ] && pname='primary' || pname='swap'
parted ${device} mkpart $pname linux-swap $swap_start 100%

parted ${device} print

echo "Formatting $bootfs to ext3..."
mkfs.ext3 $bootfs

echo "Formatting $rootfs to ext3..."
mkfs.ext3 $rootfs

echo "Formatting swap partition...($swap)"
mkswap $swap

mkdir /tgt_root
mkdir /src_root
mkdir -p /boot

# Handling of the target root partition
mount $rootfs /tgt_root
mount -o rw,loop,noatime,nodiratime /run/media/$1/$2 /src_root
echo "Copying rootfs files..."
cp -a /src_root/* /tgt_root
if [ -d /tgt_root/etc/ ] ; then
    if [ $grub_version -ne 0 ] ; then
        boot_uuid=$(blkid -o value -s UUID ${bootfs})
        swap_part_uuid=$(blkid -o value -s PARTUUID ${swap})
        bootdev="UUID=$boot_uuid"
        swapdev=/dev/disk/by-partuuid/$swap_part_uuid
    else
        bootdev=${bootfs}
        swapdev=${swap}
    fi
    echo "$swapdev                swap             swap       defaults              0  0" >> /tgt_root/etc/fstab
    echo "$bootdev              /boot            ext3       defaults              1  2" >> /tgt_root/etc/fstab
    # We dont want udev to mount our root device while we're booting...
    if [ -d /tgt_root/etc/udev/ ] ; then
        echo "${device}" >> /tgt_root/etc/udev/mount.blacklist
    fi
fi
umount /tgt_root
umount /src_root

# Handling of the target boot partition
mount $bootfs /boot
echo "Preparing boot partition..."
if [ -f /etc/grub.d/00_header -a $grub_version -ne 0 ] ; then
    echo "Preparing custom grub2 menu..."
    root_part_uuid=$(blkid -o value -s PARTUUID ${rootfs})
    boot_uuid=$(blkid -o value -s UUID ${bootfs})
    GRUBCFG="/boot/grub/grub.cfg"
    mkdir -p $(dirname $GRUBCFG)
    cat >$GRUBCFG <<_EOF
menuentry "Linux" {
    search --no-floppy --fs-uuid $boot_uuid --set root
    linux /vmlinuz root=PARTUUID=$root_part_uuid $rootwait rw $5 $3 $4 quiet
}
_EOF
    chmod 0444 $GRUBCFG
fi
grub-install ${device}

if [ $grub_version -eq 0 ] ; then
    echo "(hd0) ${device}" > /boot/grub/device.map
    echo "Preparing custom grub menu..."
    echo "default 0" > /boot/grub/menu.lst
    echo "timeout 30" >> /boot/grub/menu.lst
    echo "title Live Boot/Install-Image" >> /boot/grub/menu.lst
    echo "root  (hd0,0)" >> /boot/grub/menu.lst
    echo "kernel /vmlinuz root=$rootfs rw $3 $4 quiet" >> /boot/grub/menu.lst
fi

cp /run/media/$1/vmlinuz /boot/

umount /boot

sync

echo "Remove your installation media, and press ENTER"

read enter

echo "Rebooting..."
reboot -f