Mac OS X Catalina - NFS File Access Behavior in CRON or Launchd Post: 303045436

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Top Forums UNIX for Beginners Questions & Answers Mac OS X Catalina - NFS File Access Behavior in CRON or Launchd Post 303045436 by bminear on Friday 20th of March 2020 04:59:56 PM

03-20-2020

Registered User

Quote:

Agreed. Also, check the access rights set on the NAS end. I'm no MAC user either but perhaps your upgraded OS is checking acess rights on the NAS that it wasn't checking before.

Well, I'm about to give up. I've gone through every single permission and access rights option on the NAS, no luck. Again, what completely confuses me is that I can run the script manually from the shell and everything works perfectly. So I know that the NFS directory is mounted, and that root user can read the files in it. But as soon as it's a cron job or a launchd job that runs the script it can see the file, but can't read it.

The log simply says:

Code:

cat: /System/Volumes/Data/nfs/hosts: Operation not permitted

Without a doubt the upgrade to Catalina resulted in scripts being run within the context of cron or launchd to use a different environment than that of the command line. This approach of mine works on ALL my other Linux, *nix (SunOS, Solaris, HP-UX, AIX, Linux), heck, even OpenVMS, but no longer on Mac OS X. Grrrrr....

bminear

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mount.nfs

MOUNT.NFS(8)                                                  System Manager's Manual                                                 MOUNT.NFS(8)

NAME

       mount.nfs, mount.nfs4 - mount a Network File System

SYNOPSIS

       mount.nfs remotetarget dir [-rvVwfnsh ] [-o options]

DESCRIPTION

       mount.nfs is a part of nfs(5) utilities package, which provides NFS client functionality.

       mount.nfs  is  meant to be used by the mount(8) command for mounting NFS shares. This subcommand, however, can also be used as a standalone
       command with limited functionality.

       remotetarget is a server share usually in the form of servername:/path/to/share.  dir is the directory on which the file system  is  to  be
       mounted.

       Under  Linux  2.6.32  and  later  kernel  versions, mount.nfs can mount all NFS file system versions.  Under earlier Linux kernel versions,
       mount.nfs4 must be used for mounting NFSv4 file systems while mount.nfs must be used for NFSv3 and v2.

OPTIONS

       -r     Mount file system readonly.

       -v     Be verbose.

       -V     Print version.

       -w     Mount file system read-write.

       -f     Fake mount. Don't actually call the mount system call.

       -n     Do not update /etc/mtab.  By default, an entry is created in /etc/mtab for every mounted file system. Use this option to skip making
              an entry.

       -s     Tolerate sloppy mount options rather than fail.

       -h     Print help message.

       nfsoptions
              Refer to nfs(5) or mount(8) manual pages.

NOTE

       For further information please refer nfs(5) and mount(8) manual pages.

FILES

       /etc/fstab        file system table

       /etc/mtab         table of mounted file systems

SEE ALSO

       nfs(5), mount(8),

AUTHOR

       Amit Gud <agud@redhat.com>

                                                                    5 Jun 2006                                                        MOUNT.NFS(8)