/etc/schroot/setup.d/15binfmt is in schroot 1.6.10-4build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | #!/bin/sh
# Copyright © 2011 Julian Andres Klode <jak@debian.org>
#
# schroot is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# schroot is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
#####################################################################
set -e
. "$SETUP_DATA_DIR/common-data"
. "$SETUP_DATA_DIR/common-functions"
. "$SETUP_DATA_DIR/common-config"
if [ "$STAGE" != "setup-start" ] && \
[ "$STAGE" != "setup-stop" ] && \
[ "$STAGE" != "setup-recover" ]; then
exit 0
elif ! which update-binfmts > /dev/null 2>&1; then
info "Missing update-binfmts; not enabling binfmt support"
exit 0
fi
shell="${CHROOT_PATH}/bin/sh"
for emulator in $(update-binfmts --find "$shell"); do
dst="${CHROOT_PATH}$emulator"
if [ ! -e "$emulator" ]; then
info "Missing emulator: $emulator; not enabling binfmt support"
else
[ -e "$dst" ] || touch "$dst"
mount --bind "$emulator" "$dst"
mount -o remount,ro,bind "$dst"
fi
done
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