I guess it all hinges on what you mean by "root". Sysplex root, or root filesystem in a non-sysplex sharing situation. ALTROOT applies to sysplex root, which contains nothing but symbolic links to everything else. In non-sysplex sharing, Root is usually where the system executables run. If you question is about the latter, it may be possible to replace it while running, however, everything that uses USS will be interrupted, including TCPIP(and everything that uses it). Because of that disruption, it is usually easier (and safer, not to mention best practice) to IPL any changes into use.
_________________________________________________________________ Dave Jousma Assistant Vice President, Mainframe Engineering [email protected] 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f 616.653.2717 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of van der Grijn, Bart (B) Sent: Thursday, April 16, 2015 7:24 AM To: [email protected] Subject: Re: Change ROOT without IPL Jake, look for ALTROOT in the Unix System Services Planning manual. Disclaimer: I haven't actually used it. Bart -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Jake Anderson Sent: Thursday, April 16, 2015 7:05 AM To: [email protected] Subject: Change ROOT without IPL Hello, Cross posted to MVS-OE Is there a way to replace a running Root dataset with the new one root without an IPL. One of our development system needs a change in Root, So I am trying to understand if it can be changed with no IPL. Any Suggestions are welcome. z/OS : 1.13 Jake ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
