postinst is in qemu-user-static 2.0.0~rc1+dfsg-0ubuntu3.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
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 | #!/bin/sh
set -e
# binfmt registration/deregistration
if [ configure = "$1" ] && [ -x /usr/sbin/update-binfmts ]; then
# list of architectures is autogenerated from debian/rules
for target in aarch64 alpha arm armeb cris i386 m68k microblaze mips mipsel ppc ppc64 ppc64abi32 s390x sh4 sh4eb sparc sparc32plus sparc64 x86_64 ; do
if [ -f /var/lib/binfmts/qemu-$target ]; then
# remove format, in case the current version no longer supports it.
update-binfmts --package qemu-user-static --remove qemu-$target /usr/bin/qemu-$target-static
fi
if [ -f /usr/share/binfmts/qemu-$target ]; then
# install currently supported format.
update-binfmts --import qemu-$target
fi
done
fi
if dpkg --compare-versions "$2" lt-nl 1.7.0+dfsg-2ubuntu9 \
&& [ -x /usr/sbin/update-binfmts ] \
&& [ -f /var/lib/binfmts/qemu-arm64 ]
then
update-binfmts --package qemu-user-static --remove qemu-arm64 /usr/bin/qemu-arm64-static
fi
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