Diskless workstation and some minor issues

[Bob Bishop]

Hi,

> On 19 Apr 2016, at 14:58, BERTRAND Joël <joel.bertrand at systella.fr> wrote:
> 
> 	Hello,
> 
> 	I have installed a diskless workstation (10.2-RELEASE-p14) that mounts its rootfs from a NetBSD nfs server. My fstab is :
> 
> root at pythagore:~ # cat /etc/fstab
> # Device        Mountpoint      FStype  Options Dump    Pass#
> 192.168.10.128:/srv/pythagore   /       nfs     nfsv3,tcp,soft,intr,rw 0      0
> ...
> 192.168.10.128:/home            /home   nfs     nfsv3,tcp,soft,intr,rw 0      0
> root at pythagore:~ #
> 
> 	First question. I have installed this diskless workstation with an USB stick. Now, FreeBSD kernel mounts rootfs over NFS. But in a first time, it tries to mount usbus0 (!) :
> 
> Apr  9 10:48:00 pythagore kernel: Root mount waiting for: usbus2 usbus1 usbus0
[snip]
> Apr  9 10:48:02 pythagore kernel: ugen0.4: <Unknown> at usbus0 (disconnected)
> Apr  9 10:48:02 pythagore kernel: uhub_reattach_port: could not allocate new device
> Apr  9 10:48:02 pythagore kernel: Trying to mount root from nfs:192.168.10.128:/srv/pythagore [nfsv3,tcp,soft,intr,rw]...
> Apr  9 10:48:02 pythagore kernel: NFS ROOT: 192.168.10.128:/srv/pythagore
> 
> 	I don't understand why kernel tries to mount an USB rootfs... And I haven't found how fix this trouble.

It doesn’t. It waits for USB just in case the root is on USB, I assume this isn’t optimised to keep things simple.

> 	Second trouble. /var/log/message contains a lot of :
> Apr  9 10:50:00 pythagore atrun[862]: cannot lock /var/at/jobs/: Permission denied
[etc]

I suspect the rest of your troubles are due to the usual default NFS root => nobody mapping. You probably need something like -maproot=0 somewhere in /etc/exports on the server; RTFM exports(5).

--
Bob Bishop
rb at gid.co.uk