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Bind mount cache/data on startup from writable space

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This commit is contained in:
Simon Fels 2016-12-08 07:12:09 +01:00
commit 87da2f3744
1 changed files with 6 additions and 5 deletions
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11
scripts/container-manager.sh
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@ -1,4 +1,4 @@
#!/bin/bash #!/bin/sh
# We need to put the rootfs somewhere where we can modify some # We need to put the rootfs somewhere where we can modify some
# parts of the content on first boot (namely file permissions). # parts of the content on first boot (namely file permissions).
@ -10,7 +10,6 @@ ROOTFS_PATH=$DATA_PATH/rootfs
RAMDISK_PATH=$DATA_PATH/ramdisk RAMDISK_PATH=$DATA_PATH/ramdisk
INITRD=$SNAP/ramdisk.img INITRD=$SNAP/ramdisk.img
SYSTEM_IMG=$SNAP/system.img SYSTEM_IMG=$SNAP/system.img
ANDROID_DATA_PATH=$DATA_PATH/android-data
if [ ! -e $INITRD ]; then if [ ! -e $INITRD ]; then
echo "ERROR: boot ramdisk does not exist" echo "ERROR: boot ramdisk does not exist"
@ -37,9 +36,11 @@ mkdir -p $ROOTFS_PATH
mount -o bind,ro $RAMDISK_PATH $ROOTFS_PATH mount -o bind,ro $RAMDISK_PATH $ROOTFS_PATH
mount -o loop,ro $SYSTEM_IMG $ROOTFS_PATH/system mount -o loop,ro $SYSTEM_IMG $ROOTFS_PATH/system
# ... but we keep /data in the read/write space # but certain top-level directories need to be in a writable space
mkdir -p $ANDROID_DATA_PATH for dir in cache data; do
mount -o bind $ANDROID_DATA_PATH $ROOTFS_PATH/data mkdir -p $DATA_PATH/android-$dir
mount -o bind $DATA_PATH/android-$dir $ROOTFS_PATH/$dir
done
# Make sure our setup path for the container rootfs # Make sure our setup path for the container rootfs
# is present as lxc is statically configured for # is present as lxc is statically configured for