> On 16 Aug 2019, at 01:13, Ryan Schmidt <ryandes...@macports.org> wrote: > > > > On Aug 14, 2019, at 17:49, Gerben Wierda wrote: > >> If this is a bug, I suggest using 600, not 500 for the fix.100 local users >> on a mac seems adequate (like 640kB…) and server starts at 1025, so ample >> room for services. > > As I said, I believe our intention was to use the same range of UIDs and GIDs > that Apple used to create normal user accounts. If Apple starts at 501, it > was a bug for us to start at 500, and the fix for the bug would be to start > at 501. > > Note that we also create a "macports" user and group at MacPorts installation > time. The code for that is separate from the code that creates users and > groups for ports. There are two copies of the "macports" user/group creation > code: one in Makefile.in for users who build from source, and one in the > Installer package, the source for which is in portmgr/dmg/postflight.in. Both > of these search for an empty UID starting at 501, not 500. And they don't > specify what range to use for group IDs; they just ask the system for the > next free GID. > > If you want our range not to overlap Apple's range, that's a separate feature > request that we could certainly consider. Off the top of my head I can't > think of any problems with that but I don't know why it was originally chosen > to overlap Apple's range. > > Note that our user handling originates from an old version of Mac OS X in > which Apple created both a UID and a GID for each user. (Tiger and earlier > maybe?) Current versions of macOS no longer do that; for example my main user > is not a member of its own group, but rather of the group "staff". I don't > know if it still makes sense for us to create a separate group for each user > that we create, but I suppose that's another separate issue.
I know that latter. For services and daemons, Apple still creates user/groups with identical separate names. And these are what the MacPorts generally need. For actual users, even in the NeXT days if I recall correctly, it was multiple users in a group like staff/admin/wheel (very early, the latter two for admin users), but I might be wrong here. luna:~ gerben$ dscl . -list /Users _amavisd _analyticsd _appleevents _applepay _appowner _appserver _appstore etc luna:~ gerben$ dscl . -list /Groups _amavisd _analyticsd _analyticsusers _appleevents _applepay _appowner _appserveradm _appserverusr _appstore etc If you have multiple Macs and you want to have the same uid for users on them, you create them in the same order. Now, normally you do that at the start before you get to do things like MacPorts, but in this case I did not. So, what I need is build macports from source if I want to change this behaviour? G
