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#! @shell@
set -e
# Re-exec ourselves in a private mount namespace so that our bind
# mounts get cleaned up automatically.
if [ "$(id -u)" = 0 ]; then
if [ -z "$NIXOS_ENTER_REEXEC" ]; then
export NIXOS_ENTER_REEXEC=1
exec unshare --mount --uts -- "$0" "$@"
else
mount --make-rprivate /
fi
fi
mountPoint=/mnt
command=("bash" "--login")
system=/nix/var/nix/profiles/system
while [ "$#" -gt 0 ]; do
i="$1"; shift 1
case "$i" in
--root)
mountPoint="$1"; shift 1
;;
--system)
system="$1"; shift 1
;;
--help)
exec man nixos-enter
exit 1
;;
--command|-c)
command=("bash" "-c" "$1")
shift 1
;;
--)
command=("$@")
break
;;
*)
echo "$0: unknown option \`$i'"
exit 1
;;
esac
done
if [[ ! -e $mountPoint/etc/NIXOS ]]; then
echo "$0: '$mountPoint' is not a NixOS installation" >&2
exit 126
fi
mkdir -m 0755 -p "$mountPoint/dev"
mount --rbind /dev "$mountPoint/dev"
# Run the activation script. Set $LOCALE_ARCHIVE to supress some Perl locale warnings.
LOCALE_ARCHIVE=$system/sw/lib/locale/locale-archive chroot "$mountPoint" "$system/activate" >&2
exec chroot "$mountPoint" "${command[@]}"
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