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