Domino server doesn't start after Domino 9.0 upgrade on ZLINUX - intermittent issue

I found that there is an intermittent problem with upgrading Domino 9.0 from Domino 8.5.3 on ZLINUX. When I upgraded 3 ZLINUX servers from Domino 8.5.3 to Domino 9.0, 2 of the servers did not start after the upgrade, although I had set them to start locally (Local Server Startup) after the upgrade. Instead there was only a cryptic error message 24576 displayed on the console, but there was no other explanation about what the issue was. Upon checking the notes.ini file, I found that this file was set to be “read only”, not writeable. Once I changed this property using chmod (chmod 755 notes.ini), the server started properly. I am attaching a copy of the screenshot below (in this posting)

This is an intermittent problem but which I have also experienced on Domino 8.5.3 running on ZLINUX and which I have talked to IBM support about. That problem was also easily fixed by changing the permissions on the notes.ini using the chmod command once you were aware of this.

Subject: RE: Domino server doesn’t start after Domino 9.0 upgrade on ZLINUX - intermittent issue

The permissions of the notes.ini were changed during the upgrade and so the file was made made “read-only”. Yes I will check it on my next zlinux upgrades now that I have seen this twice

Subject: How about the rest of the files?

You noticed that only notes.ini had changed permissions?
What about ownership?
Thanks,
Irina.

Subject: RE: Domino server doesn’t start after Domino 9.0 upgrade on ZLINUX - intermittent issue

I checked and the ownership was still belonged to the user notes and group notes after the upgrade. It was just the red-write permissions of the notes.ini file which changed

Subject: so what were the exact permissions after upgrade (and before)?

Should be writable by owner only - something like 755 - and I assume you were a correct user .
Thanks!
Irina.

Subject: Were permissions on notes.ini changed during upgrade?

Could you, please, check permissions on your next upgrade before and after?

Thanks,
Irina Khasin.