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#!/bin/bash
set -ex
ramdisk=$1
system=$2
image=${3:-android.img}
if [ -z "$ramdisk" ] || [ -z "$system" ]; then
echo "Usage: $0 <ramdisk> <system image> [<output anbox image>]"
exit 1
fi
workdir=`mktemp -d`
rootfs=$workdir/rootfs
mkdir -p $rootfs
# Extract ramdisk and preserve ownership of files
(cd $rootfs ; cat $ramdisk | gzip -d | sudo cpio -i)
mkdir $workdir/system
sudo mount -o loop,ro $system $workdir/system
sudo cp -ar $workdir/system/* $rootfs/system
sudo umount $workdir/system
gcc -o $workdir/uidmapshift external/nsexec/uidmapshift.c
sudo $workdir/uidmapshift -b $rootfs 0 100000 65536
# FIXME
sudo chmod +x $rootfs/anbox-init.sh
sudo mksquashfs $rootfs $image -comp xz -no-xattrs
sudo chown $USER:$USER $image
sudo rm -rf $workdir
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