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Full Discussion: Mac OS X Catalina - NFS File Access Behavior in CRON or Launchd
Top Forums UNIX for Beginners Questions & Answers Mac OS X Catalina - NFS File Access Behavior in CRON or Launchd Post 303045439 by bminear on Friday 20th of March 2020 08:21:08 PM
Old 03-20-2020
Quote:
Instead, show us the mount command used or the according (if applicable) /etc/fstab line.
I've tried about 50 combinations, in the current and most simple form I use /etc/fstab

Code:
#
# Warning - this file should only be modified with vifs(8)
#
# Failure to do so is unsupported and may be destructive.
#
cady:/volume1/nfs       /System/Volumes/Data/nfs        nfs     rw

But in an attempt to try a lot of different combinations quickly I just used mount commands directly. Here's a sampling from my history.

Code:
mount cady:/volume1/nfs /System/Volumes/Data/nfs
mount_nfs -o resvport cady:/volume1/nfs /System/Volumes/Data/nfs
mount_nfs -o noacl cady:/volume1/nfs /System/Volumes/Data/nfs
mount_nfs -o nolock cady:/volume1/nfs /System/Volumes/Data/nfs
mount_nfs -o nfsvers=4 cady:/volume1/nfs /System/Volumes/Data/nfs
mount_nfs -o nfsvers=2 cady:/volume1/nfs /System/Volumes/Data/nfs
mount -o rw,sync,no_root_squash,no_subtree_check,insecure cady:/volume1/nfs /System/Volumes/Data/nfs
...
...

Using either mount commands directly, or using auto_master/auto_nfs, or /etc/fstab I can easily get the NFS drive mounted, and the permissions and ownership is correct. From a shell I can copy files to/from the local system to the NFS mount without troubles. The logs on the NFS server show no errors. I've already posted the unhelpful error log from the client machine.

I've tried lots of different combinations of owner/group/permissions via chown, chgrp and chown. Currently sitting at:

Code:
brians-mbp:etc root# ls -la /System/Volumes/Data/nfs/hosts
-rwxrwxrwx 1 1024 _lpoperator 2393 Feb 8 14:29 /System/Volumes/Data/nfs/hosts

I was hoping somebody familiar with how Mac OS X specifically creates the environment in which Launchd or cron jobs run could shed some light. Even though root has access to the files, and the Launchd or cron job is owned by root, it somehow isn't executed with normal root rights.
 

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LEARN ABOUT PHP

mountd

mountd(1M)																mountd(1M)

NAME

       mountd - server for NFS mount requests and NFS access checks

SYNOPSIS

       /usr/lib/nfs/mountd [-v] [-r]

       mountd  is  an  RPC  server  that  answers  requests  for  NFS  access  information  and  file  system  mount  requests.  It reads the file
       /etc/dfs/sharetab to determine which file systems are available for mounting by which remote machines. See sharetab(4). nfsd running on the
       local  server  will  contact mountd the first time an NFS client tries to access the file system to determine whether the client should get
       read-write, read-only, or no access. This access can be dependent on the security mode used in the remoted procedure call from the  client.
       See share_nfs(1M).

       The command also provides information as to what file systems are mounted by which clients. This information can be printed using the show-
       mount(1M) command.

       The mountd daemon is automatically invoked by share(1M).

       Only super user can run the mountd daemon.

       The options shown below are supported for NVSv2/v3 clients. They are not supported for Solaris NFSv4 clients.

       -r	Reject mount requests from clients. Clients that have file systems mounted will not be affected.

       -v	Run the command in verbose mode. Each time mountd determines what access a client should get, it will log the result to  the  con-
		sole, as well as how it got that result.

       /etc/dfs/sharetab       shared file system table

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWnfssu 		   |
       +-----------------------------+-----------------------------+

       nfsd(1M), share(1M), share_nfs(1M), showmount(1M), nfs(4), sharetab(4), attributes(5)

       Since  mountd  must  be	running for nfsd to function properly, mountd is automatically started by the svc:/network/nfs/server service. See
       nfs(4).

       Some routines that compare hostnames use case-sensitive string comparisons; some do not. If an incoming request fails, verify that the case
       of the hostname in the file to be parsed matches the case of the hostname called for, and attempt the request again.

								    27 Apr 2005 							mountd(1M)
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