On Sun, 2020-03-08 at 11:44 -0400, Marvin Renich wrote: > * jnq...@gmail.com <jnq...@gmail.com> [200308 10:58]: > > On Sat, 2020-03-07 at 21:30 +0100, Tomas Pospisek wrote: > > > The problem is that installing the package will automatically > > > start > > > the > > > daemon cluster in a "default" configuration. > > > > > > [1] > > > https://askubuntu.com/questions/74061/install-packages-without-starting-background-processes-and-services# > > > > i can't comment on what might be considered an "official" solution. > > > > how live-build achieves this is essentially the same as happens to > > be > > discussed in the linked page for Debian's debootstrap package (the > > tool > > for building the base filesystem). > > > > that is to use dpkg-divert to temporarily replace the /sbin/start- > > stop- > > daemon binary with something that essentially just exits with > > success > > (i.e. 0). This could be an empty shell script (or one that prints a > > warning about the diversion being in place as in the linked > > discussion) > > or a symlink to /bin/true. > > > > enabling diversion: > > ``` > > dpkg-divert --add --rename /sbin/start-stop-daemon > > ln -fs /bin/true /sbin/start-stop-daemon > > ``` > > > > removing diversion: > > ``` > > rm -f /sbin/start-stop-daemon > > dpkg-divert --remove --rename /sbin/start-stop-daemon > > ``` > > I'm surprised that live-build does this and that debootstrap does as > well. Note that the link above, farther down the page, gives what I > thought was the "correct" answer, which is to create a script, > /usr/sbin/policy-rc.d, which simply invokes exit 101. This is also > the > method described in the Debian wiki page for chroot [2]. > > live-build and debootstrap may have been doing this since before the > policy-rc.d API was defined, and they may also have more strict needs > than is defined by policy-rc.d (e.g. handling misbehaving packages). > > However, for the OP's original purpose described in this thread, I > believe the policy-rc.d approach is the correct solution, and > dpkg-divert should be avoided. > > [2] https://wiki.debian.org/chroot > > ...Marvin
as corrected in an earlier addition to this discussion I amended my description of live-build's approach to include that it does both the start-stop-daemon approach _and_ the policy-rc.d approach (which I'd overlooked). debootstrap does both also, but avoiding without using dpkg-divert itself for the move of start-stop-daemon (it just moves the file).