diff options
Diffstat (limited to 'meta/recipes-core/initrdscripts')
-rw-r--r-- | meta/recipes-core/initrdscripts/files/init-live.sh | 63 |
1 files changed, 56 insertions, 7 deletions
diff --git a/meta/recipes-core/initrdscripts/files/init-live.sh b/meta/recipes-core/initrdscripts/files/init-live.sh index ca4135141f..890c56280a 100644 --- a/meta/recipes-core/initrdscripts/files/init-live.sh +++ b/meta/recipes-core/initrdscripts/files/init-live.sh | |||
@@ -137,15 +137,64 @@ do | |||
137 | sleep 1 | 137 | sleep 1 |
138 | done | 138 | done |
139 | 139 | ||
140 | # Try to make a union mount of the root image. | ||
141 | # If no unification filesystem is available, mount the image read-only. | ||
142 | mount_and_boot() { | ||
143 | mkdir $ROOT_MOUNT | ||
144 | mknod /dev/loop0 b 7 0 2>/dev/null | ||
145 | |||
146 | # determine which unification filesystem to use | ||
147 | union_fs_type="" | ||
148 | if grep -q -w "overlayfs" /proc/filesystems; then | ||
149 | union_fs_type="overlayfs" | ||
150 | elif grep -q -w "aufs" /proc/filesystems; then | ||
151 | union_fs_type="aufs" | ||
152 | else | ||
153 | union_fs_type="" | ||
154 | fi | ||
155 | |||
156 | # make a union mount if possible | ||
157 | case $union_fs_type in | ||
158 | "overlayfs") | ||
159 | mkdir -p /rootfs.ro /rootfs.rw | ||
160 | if ! mount -o rw,loop,noatime,nodiratime /media/$i/$ISOLINUX/$ROOT_IMAGE /rootfs.ro; then | ||
161 | rm -rf /rootfs.ro /rootfs.rw | ||
162 | fatal "Could not mount rootfs image" | ||
163 | else | ||
164 | mount -t tmpfs -o rw,noatime,mode=755 tmpfs /rootfs.rw | ||
165 | mount -t overlayfs -o "lowerdir=/rootfs.ro,upperdir=/rootfs.rw" overlayfs $ROOT_MOUNT | ||
166 | mkdir -p $ROOT_MOUNT/rootfs.ro $ROOT_MOUNT/rootfs.rw | ||
167 | mount --move /rootfs.ro $ROOT_MOUNT/rootfs.ro | ||
168 | mount --move /rootfs.rw $ROOT_MOUNT/rootfs.rw | ||
169 | fi | ||
170 | ;; | ||
171 | "aufs") | ||
172 | mkdir -p /rootfs.ro /rootfs.rw | ||
173 | if ! mount -o rw,loop,noatime,nodiratime /media/$i/$ISOLINUX/$ROOT_IMAGE /rootfs.ro; then | ||
174 | rm -rf /rootfs.ro /rootfs.rw | ||
175 | fatal "Could not mount rootfs image" | ||
176 | else | ||
177 | mount -t tmpfs -o rw,noatime,mode=755 tmpfs /rootfs.rw | ||
178 | mount -t aufs -o "dirs=/rootfs.rw=rw:/rootfs.ro=ro" aufs $ROOT_MOUNT | ||
179 | mkdir -p $ROOT_MOUNT/rootfs.ro $ROOT_MOUNT/rootfs.rw | ||
180 | mount --move /rootfs.ro $ROOT_MOUNT/rootfs.ro | ||
181 | mount --move /rootfs.rw $ROOT_MOUNT/rootfs.rw | ||
182 | fi | ||
183 | ;; | ||
184 | "") | ||
185 | if ! mount -o rw,loop,noatime,nodiratime /media/$i/$ISOLINUX/$ROOT_IMAGE $ROOT_MOUNT ; then | ||
186 | fatal "Could not mount rootfs image" | ||
187 | fi | ||
188 | ;; | ||
189 | esac | ||
190 | |||
191 | # boot the image | ||
192 | boot_live_root | ||
193 | } | ||
194 | |||
140 | case $label in | 195 | case $label in |
141 | boot) | 196 | boot) |
142 | mkdir $ROOT_MOUNT | 197 | mount_and_boot |
143 | mknod /dev/loop0 b 7 0 2>/dev/null | ||
144 | if ! $MOUNT -o rw,loop,noatime,nodiratime /media/$i/$ISOLINUX/$ROOT_IMAGE $ROOT_MOUNT ; then | ||
145 | fatal "Could not mount rootfs image" | ||
146 | else | ||
147 | boot_live_root | ||
148 | fi | ||
149 | ;; | 198 | ;; |
150 | install|install-efi) | 199 | install|install-efi) |
151 | if [ -f /media/$i/$ISOLINUX/$ROOT_IMAGE ] ; then | 200 | if [ -f /media/$i/$ISOLINUX/$ROOT_IMAGE ] ; then |