Re: exact semantics of union mounts (and TRYEMULROOT)

2017-07-14 Thread Mouse
>> some relatively obscure OS most of them have likely never heard of > Should we have an arbitrarily different, i.e. wrong, implementation > of, say, telnet, because it originally came from some relatively > obscure OS most people now have likely never heard of? SunRPC? NFS? > OpenGL? Telnet,

Re: exact semantics of union mounts (and TRYEMULROOT)

2017-07-14 Thread David Holland
On Tue, Jul 11, 2017 at 02:27:59PM -0400, Mouse wrote: > > No, it doesn't. Union mounts were invented by Plan 9 and the Plan 9 > > behavior is the normative reference. > > Then why are you asking here? Why not ask on a Plan 9 list? Because I'm talking about NetBSD and NetBSD's

Re: exact semantics of union mounts (and TRYEMULROOT)

2017-07-14 Thread David Holland
On Wed, Jul 12, 2017 at 12:54:31AM +0700, Robert Elz wrote: > | In Plan 9 the layer creations happen in is chosen by a mount flag, and > | isn't necessarily the top layer. We don't have that flag (but could > | add it, as I noted) - my original mail was using "not readonly" as a > |