Am Dienstag, den 14.07.2015, 21:28 +0200 schrieb Johannes Schauer: > Hi, > > Quoting Benjamin Drung (2015-07-14 21:19:51) > > The idea to bind mount the directory is to avoid build conflicts. When you > > build the same package twice in parallel, one chroot would bind mount > > /build/$package-XXXXXX/$package-$version to > > /usr/src/debian/$package/$full-version and the other > > /build/$package-YYYYYY/$package-$version to > > /usr/src/debian/$package/$full-version. Does this make sense or do I have a > > flaw in my logic? > > maybe I have a flaw in mine :) So let me inquire about this last thing you > wrote. > > Do you mean to bind mount /build/$package-XXXXXX/$package-$version from the > host running sbuild to /usr/src/debian/$package/$full-version in the schroot > where the build is done? If yes, then why would I want the /build directory on > my host system? That would violate the FHS. Secondly, who would be responsible > to set up /build/$package-XXXXXX and /build/$package-YYYYYY on my host system? > Which permissions would that require? > > So maybe you mean it the other way round, to bind mount > /usr/src/debian/$package/$full-version from the host running sbuild to > /build/$package-XXXXXX/$package-$version in the schroot where the build is > done? If yes, then what is XXXXXX? If it is random, then how would it make the > build path reproducible? If it is not random, why does the XXXXXX part exist? > > Thanks for bearing with me :)
Time to check the current behaviour and to rethink. :) Let's take the sl package as example. When I build sl, /var/lib/sbuild/build/sl-bRYRkz/ is created and the source package is placed there. bRYRkz is the random part. /var/lib/sbuild/build is mounted to /var/lib/schroot/mount/$session/build (done in /etc/schroot/sbuild/fstab) so that /var/lib/sbuild/build/sl-bRYRkz/ is accessible as /build/sl-bRYRkz/ inside the chroot. Instead /var/lib/sbuild/build/sl-bRYRkz could be mounted to /var/lib/schroot/mount/$session/usr/src/debian/sl so that /var/lib/sbuild/build/sl-bRYRkz/ is accessible as /usr/src/debian/sl inside the chroot. The alternative would be to bindmount /build/sl-bRYRkz/ to /usr/src/debian/sl inside the chroot (which would be an addition bind mount level). Problem: The path /var/lib/sbuild/build/sl-bRYRkz/ is not static and I don't know whether schroot could be configured to support that dynamic mounting. I hope that now everything will be as clear as mud. ;) (or in German: Hoffentlich sind nun alle Klarheiten beseitigt) -- Benjamin Drung System Developer Debian & Ubuntu Developer ProfitBricks GmbH Greifswalder Str. 207 D - 10405 Berlin Email: benjamin.dr...@profitbricks.com URL: http://www.profitbricks.com Sitz der Gesellschaft: Berlin. Registergericht: Amtsgericht Charlottenburg, HRB 125506B. Geschäftsführer: Andreas Gauger, Achim Weiss.
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