Sam Hartman <hartmans@debian.org> writes: >>>>>> "Josh" == Josh Triplett <josh@joshtriplett.org> writes: > > Josh> As another technical alternative, which I haven't seen > Josh> mentioned elsewhere in this thread or related bug reports: > Josh> when I need to override a packaged binary or file temporarily > Josh> for debugging purposes, without forgetting to restore it > Josh> later, I tend to use "mount --bind /my/replacement > Josh> /usr/bin/foo". For instance, for local testing while > Josh> developing dh-cargo, which required a newer version of Cargo > Josh> than packaged in Debian at the time, I built a local version > Josh> of Cargo and did "mount --bind ~/src/cargo/target/debug/cargo > Josh> /usr/bin/cargo". That allowed me to easily test-build > Josh> packages before the availability of a Debian package of a > Josh> sufficiently new Cargo. > > O, cool, that's really need. > > And as a throw-back to an alternate Plan9 history, you could presumably > unshare your mount namespace and even do that for a subset of the > processes on a system, getting almost all the benefits of PATH. I stumbled across 'proot' while looking into the background for this, which seems to be able to provide the effect of a bind mount without needing root privilege, and would presumably deal with Ian's original problem quite nicely. It's currently broken in stretch though (#847292). Cheers, Phil. -- |)| Philip Hands [+44 (0)20 8530 9560] HANDS.COM Ltd. |-| http://www.hands.com/ http://ftp.uk.debian.org/ |(| Hugo-Klemm-Strasse 34, 21075 Hamburg, GERMANY
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