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# This file contains utility functions used by rpi2-gen-image.sh
cleanup (){
set +x
set +e
# Identify and kill all processes still using files
echo "killing processes using mount point ..."
fuser -k "$R"
sleep 3
fuser -9 -k -v "$R"
# Clean up temporary .password file
if [ -r ".password" ] ; then
shred -zu .password
fi
# Clean up all temporary mount points
echo "removing temporary mount points ..."
umount -l "$R/proc" 2> /dev/null
umount -l "$R/sys" 2> /dev/null
umount -l "$R/dev/pts" 2> /dev/null
umount "$BUILDDIR/mount/boot/firmware" 2> /dev/null
umount "$BUILDDIR/mount" 2> /dev/null
cryptsetup close "${CRYPTFS_MAPPING}" 2> /dev/null
losetup -d "$ROOT_LOOP" 2> /dev/null
losetup -d "$FRMW_LOOP" 2> /dev/null
trap - 0 1 2 3 6
}
chroot_exec() {
# Exec command in chroot
LANG=C LC_ALL=C DEBIAN_FRONTEND=noninteractive chroot $R $*
}
install_readonly() {
# Install file with user read-only permissions
install -o root -g root -m 644 $*
}
install_exec() {
# Install file with root exec permissions
install -o root -g root -m 744 $*
}
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