blob: 0dc360170ba1d5acb9ed1f75a7abfbd2a415a83d (
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
|
#!/bin/sh
version=
default=0
timeout=5
verbose=0
conf=/boot/extlinux.conf
myconf=/etc/update-extlinux.conf
# read in extlinux settings
if [ -f "$myconf" ]; then
. $myconf
fi
everbose() {
if [ "$verbose" = "0" ]; then
return
fi
echo $*
}
ewarn() {
echo "WARNING:" $@ >&2
}
eerror() {
echo "ERROR:" $@ >&2
return 1
}
everbose "Updating extlinux configuration."
if [ "x$root" = "x" ]; then
ewarn "Root device is not specified in $myconf."
blkid_export=$(blkid -o export /dev/root)
if [ -n "$blkid_export" ]; then
export $blkid_export
fi
if [ -z "$UUID" ]; then
# try parse /proc/mount for mounted /
dev=$(awk '$2 == "/" {dev=$1} END {print dev}' /proc/mounts)
if [ -n "$dev" ]; then
blkid_export=$(blkid -o export $dev)
if [ -n "$blkid_export" ]; then
export "$blkid_export"
fi
fi
fi
if [ -z "$UUID" ]; then
if [ -z "$dev" ]; then
eerror "Failed to detect root device"
exit 1
else
root=$dev
fi
else
root=UUID=$UUID
fi
everbose "Root device is: $root"
fi
rtimeout=$((${timeout}\*10))
syslinux_menu=menu.c32
menu_hidden=
# vesa menu has been requested?
if [ "$vesa_menu" = "1" ]; then
syslinux_menu=vesamenu.c32
fi
umask 0022
rm -f $conf.new
echo "# Generated by update-extlinux $version" > $conf.new
echo "DEFAULT $syslinux_menu" >> $conf.new
echo "PROMPT 0" >> $conf.new
echo "MENU TITLE Alpine/$(uname -s) Boot Menu" >> $conf.new
if [ "$hidden" = "1" ]; then
echo "MENU HIDDEN" >> $conf.new
fi
echo "MENU AUTOBOOT Alpine will be booted automatically in # seconds." >> $conf.new
echo "TIMEOUT $rtimeout" >> $conf.new
lst=0
if [ -f "/boot/xen.gz" ]; then
for kernel in $(find /boot -name "vmlinuz-*" -type f); do
tag=$(basename $kernel | cut -b9-)
everbose "Found Xen hypervisor: /boot/xen.gz, kernel: $kernel"
if [ -f "/boot/initramfs-$tag" ]; then
everbose "Found initramfs: /boot/initramfs-$tag"
initramfs="initramfs-$tag"
else
initramfs=
fi
label=xen-$(grep -w -l $tag /usr/share/kernel/*/kernel.release \
| cut -d/ -f5)
if [ "$label" = "xen-" ]; then
label=xen-$lst
fi
echo "LABEL $label" >> $conf.new
if [ "$label" = "$default" ]; then
echo " MENU DEFAULT" >> $conf.new
fi
echo " MENU LABEL Xen + Linux $tag" >> $conf.new
echo " COM32 mboot.c32" >> $conf.new
echo " APPEND xen.gz $xen_opts --- $(basename $kernel) root=$root modules=${modules}${TYPE:+,$TYPE} $default_kernel_opts --- $initramfs" >> $conf.new
echo "" >> $conf.new
lst=$(($lst + 1))
done
fi
for kernel in $(find /boot -name "vmlinuz-*" -type f); do
tag=$(basename $kernel | cut -b9-)
everbose "Found kernel: $kernel"
label=$(grep -w -l $tag /usr/share/kernel/*/kernel.release | cut -d/ -f5)
if [ -z "$label" ]; then
label=$lst
fi
echo "LABEL $label" >> $conf.new
if [ "$label" = "$default" ]; then
echo " MENU DEFAULT" >> $conf.new
fi
echo " MENU LABEL Linux $tag" >> $conf.new
echo " LINUX $(basename $kernel)" >> $conf.new
if [ -f "/boot/initramfs-$tag" ]; then
everbose "Found initramfs: /boot/initramfs-$tag"
echo " INITRD initramfs-$tag" >> $conf.new
fi
echo " APPEND root=$root modules=${modules}${TYPE:+,$TYPE} $default_kernel_opts" >> $conf.new
echo "" >> $conf.new
lst=$(($lst + 1))
done
everbose "$lst entries found."
for entry in /etc/update-extlinux.d/*; do
[ -f "$entry" ] && { cat $entry; echo ""; } >> $conf.new
done
echo "MENU SEPARATOR" >> $conf.new
echo "" >> $conf.new
if [ -f "/boot/memtest" ]; then
everbose "Found memtest86+: /boot/memtest"
echo "LABEL memtest" >> $conf.new
echo " MENU LABEL Memtest86+" >> $conf.new
echo " KERNEL memtest" >> $conf.new
echo "" >> $conf.new
fi
if [ "$overwrite" != "1" ]; then
exit 0
fi
# keep a backup just in case
if [ -f "$conf" ]; then
mv $conf $conf.old
fi
mv $conf.new $conf
everbose "Installing libutil.c32 libcom32.c32 mboot.c32 menu.c32 vesamenu.c32 to /boot."
cp /usr/share/syslinux/libutil.c32 \
/usr/share/syslinux/libcom32.c32 \
/usr/share/syslinux/mboot.c32 \
/usr/share/syslinux/menu.c32 \
/usr/share/syslinux/vesamenu.c32 \
/boot
case "$(stat -f -c '%T' /boot)" in
ext*) extlinux --update /boot;;
esac
|
