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add mini-mmdebstrap in shell to the man page

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Johannes Schauer Marin Rodrigues 2022-11-07 16:17:05 +01:00
parent d15be6abbf
commit bf33a614c3
Signed by: josch
GPG key ID: F2CBA5C78FBD83E1
1 changed files with 24 additions and 2 deletions
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mmdebstrap
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@ -6030,7 +6030,8 @@ B<mmdebstrap> creates a Debian chroot of I<SUITE> into I<TARGET> from one or
more I<MIRROR>s. It is meant as an alternative to the debootstrap tool (see
section B<DEBOOTSTRAP>). In contrast to debootstrap it uses apt to resolve
dependencies and is thus able to use more than one mirror and resolve more
complex dependencies.
complex dependencies. See section B<OPERATION> for an overview of how
B<mmdebstrap> works internally.
If no I<MIRROR> option is provided, L<http://deb.debian.org/debian> is used.
If I<SUITE> is a stable release name and no I<MIRROR> is specified, then
@ -6757,7 +6758,28 @@ retained.
=head1 OPERATION
This section gives an overview of the different steps to create a chroot.
This section gives an overview of the different steps to create a chroot. At
its core, what B<mmdebstrap> does can be put into a 14 line shell script:
mkdir -p "$2/etc/apt" "$2/var/cache"
cat << END > "$2/apt.conf"
Apt::Architecture "$(dpkg --print-architecture)";
Apt::Architectures "$(dpkg --print-architecture)";
Dir "$(cd "$2" && pwd)";
Dir::Etc::Trusted "$(eval "$(apt-config shell v Dir::Etc::Trusted/f)"; printf "$v")";
Dir::Etc::TrustedParts "$(eval "$(apt-config shell v Dir::Etc::TrustedParts/d)"; printf "$v")";
END
echo "deb http://deb.debian.org/debian/ $1 main" > "$2/etc/apt/sources.list"
APT_CONFIG="$2/apt.conf" apt-get update
APT_CONFIG="$2/apt.conf" apt-get --yes --download-only install '?essential'
for f in "$2"/var/cache/apt/archives/*.deb; do dpkg-deb --extract "$f" "$2"; done
chroot "$2" sh -c "dpkg --install --force-depends /var/cache/apt/archives/*.deb"
The additional complexity of B<mmdebstrap> is to support operation without
superuser privileges, bit-by-bit reproducible output, hooks and foreign
architecture support.
The remainder of this section explains what B<mmdebstrap> does step-by-step.
=over 8