Mercurial > hg > aboriginal
view sources/root-filesystem/bin/zapchroot @ 1278:a542c58a4c8e
Add zapchroot script that unmounts everything under a directory.
author | Rob Landley <rob@landley.net> |
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date | Mon, 08 Nov 2010 21:06:29 -0600 |
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#!/bin/bash # Copyright 2010 Rob Landley <rob@landley.net> licensed under GPLv2 if [ "$1" == "-d" ] then DELETE=1 shift fi # Clean up a chroot directory ZAP=$(readlink -f "$1" 2>/dev/null) if [ ! -d "$ZAP" ] then echo "usage: zapchroot [-d] dirname" exit 1 fi i="$(readlink -f "$(pwd)")" if [ "$ZAP" == "${i:0:${#ZAP}}" ] then echo "Sanity check failed: cwd is under zapdir" >&2 exit 1 fi # Iterate through the second entry of /proc/mounts in reverse order for i in $(awk '{print $2}' /proc/mounts | tac) do # De-escape octal versions of space, tab, backslash, newline... i=$(echo -e "$i") # Skip entries that aren't under our chroot [ "$ZAP" != "${i:0:${#ZAP}}" ] && continue echo "Umounting: $i" umount "$i" done