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#!/bin/bash -eu
# uage: geronimo <directory>
# enter a chroot with various things bind-mounted so you can do
# useful work.
mnt_devices="proc dev dev/pts sys run"
reverse_words() {
local -a rev=
for i in "$@"; do
rev=("$i" ${rev[@]})
done
echo ${rev[@]}
}
start() {
local mnt=$1
for i in $mnt_devices ; do
sudo mount -o bind /$i "$mnt"/$i
done
sudo cp /etc/apt/sources.list "$mnt"/etc/apt
sudo chroot "$mnt" /bin/bash
}
stop() {
local mnt=$1
for i in $(reverse_words $mnt_devices); do
sudo umount "$mnt"/$i
done
}
if [ $# -lt 1 ]; then
echo "usage: <directory>"
exit 1
fi
[ -d $1 ] || { echo "error: '$1' is not a directory"; exit 1; }
start $1
stop $1
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