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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 303045436 by bminear on Friday 20th of March 2020 04:59:56 PM
Old 03-20-2020
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....
 

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LEARN ABOUT CENTOS

tapset::nfs

tapset::nfs(3stap)														tapset::nfs(3stap)

NAME

       tapset::nfs - systemtap nfs tapset

DESCRIPTION

       nfs.fop.llseek
	      NFS client llseek operation

	       See probe::nfs.fop.llseek(3stap)
	       for details.

       nfs.fop.read
	      NFS client read operation

	       See probe::nfs.fop.read(3stap)
	       for details.

       nfs.fop.write
	      NFS client write operation

	       See probe::nfs.fop.write(3stap)
	       for details.

       nfs.fop.aio_read
	      NFS client aio_read file operation

	       See probe::nfs.fop.aio_read(3stap)
	       for details.

       nfs.fop.aio_write
	      NFS client aio_write file operation

	       See probe::nfs.fop.aio_write(3stap)
	       for details.

       nfs.fop.mmap
	      NFS client mmap operation

	       See probe::nfs.fop.mmap(3stap)
	       for details.

       nfs.fop.open
	      NFS client file open operation

	       See probe::nfs.fop.open(3stap)
	       for details.

       nfs.fop.flush
	      NFS client flush file operation

	       See probe::nfs.fop.flush(3stap)
	       for details.

       nfs.fop.release
	      NFS client release page operation

	       See probe::nfs.fop.release(3stap)
	       for details.

       nfs.fop.fsync
	      NFS client fsync operation

	       See probe::nfs.fop.fsync(3stap)
	       for details.

       nfs.fop.lock
	      NFS client file lock operation

	       See probe::nfs.fop.lock(3stap)
	       for details.

       nfs.fop.sendfile
	      NFS client send file operation

	       See probe::nfs.fop.sendfile(3stap)
	       for details.

       nfs.fop.check_flags
	      NFS client checking flag operation

	       See probe::nfs.fop.check_flags(3stap)
	       for details.

       nfs.aop.readpage
	      NFS client synchronously reading a page

	       See probe::nfs.aop.readpage(3stap)
	       for details.

       nfs.aop.readpages
	      NFS client reading multiple pages

	       See probe::nfs.aop.readpages(3stap)
	       for details.

       nfs.aop.set_page_dirty
	      NFS client marking page as dirty

	       See probe::nfs.aop.set_page_dirty(3stap)
	       for details.

       nfs.aop.writepage
	      NFS client writing a mapped page to the NFS server

	       See probe::nfs.aop.writepage(3stap)
	       for details.

       nfs.aop.writepages
	      NFS client writing several dirty pages to the NFS server

	       See probe::nfs.aop.writepages(3stap)
	       for details.

       nfs.aop.write_begin
	      NFS client begin to write data

	       See probe::nfs.aop.write_begin(3stap)
	       for details.

       nfs.aop.write_end
	      NFS client complete writing data

	       See probe::nfs.aop.write_end(3stap)
	       for details.

       nfs.aop.release_page
	      NFS client releasing page

	       See probe::nfs.aop.release_page(3stap)
	       for details.

SEE ALSO

	  probe::nfs.fop.llseek(3stap),      probe::nfs.fop.read(3stap),      probe::nfs.fop.write(3stap),	probe::nfs.fop.aio_read(3stap),
       probe::nfs.fop.aio_write(3stap),      probe::nfs.fop.mmap(3stap),       probe::nfs.fop.open(3stap),	  probe::nfs.fop.flush(3stap),
       probe::nfs.fop.release(3stap),	     probe::nfs.fop.fsync(3stap),      probe::nfs.fop.lock(3stap),	probe::nfs.fop.sendfile(3stap),
       probe::nfs.fop.check_flags(3stap),		 probe::nfs.aop.readpage(3stap),		 probe::nfs.aop.readpages(3stap),
       probe::nfs.aop.set_page_dirty(3stap),		    probe::nfs.aop.writepage(3stap),		  probe::nfs.aop.writepages(3stap),
       probe::nfs.aop.write_begin(3stap),  probe::nfs.aop.write_end(3stap),  probe::nfs.aop.release_page(3stap),  stap(1), stapprobes(3stap)

IBM
									---							tapset::nfs(3stap)
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