interresting aproach. this could work. however, i can see a few limitations: - you must be root. - this is specific to linux as of today. - if you want to hide the mechanism, i don't see how without doing the same portage modifications as in my solution.
but this is maybe worth investigating. my solution isn't perfect too, I admit. -------------------------------------------- En date de : Ven 30.3.18, James Le Cuirot <ch...@gentoo.org> a écrit : Objet: Re: [gentoo-dev] Re : Modification proposal for user/group creation when ROOT!="/" À: gentoo-dev@lists.gentoo.org Date: Vendredi 30 mars 2018, 21h56 On Fri, 30 Mar 2018 20:47:20 +0100 James Le Cuirot <ch...@gentoo.org> wrote: > On Fri, 30 Mar 2018 20:23:49 +0100 > James Le Cuirot <ch...@gentoo.org> wrote: > > > I did just have a lightbulb moment though. I've been playing with > > unshare recently and I wondered if we could leverage it here. > > > > $ sudo unshare -m /bin/sh -c "mount --bind /mnt/somewhere/etc /etc && groupadd foo" > > groupadd: Cannot determine your user name. > > Aha! I was trying to do this against an NFS share for a system with a > different architecture. If I use a local mount with a compatible > architecture, it actually does work. I'll explore this some more. Figured it out! The system I was doing this against has an ancient glibc (long story) with an old nsswitch.conf. I replaced this file with a newer one and it all started working. Do you agree this could be the way forwards? -- James Le Cuirot (chewi) Gentoo Linux Developer
