So you must not have added any disks since 12 SP4, Mark. This is 12 SP5 server that's been through a lot of upgrades (and upgrades within the support period).
me@xxxxx:/home/me> ls -alt /etc/udev/rules.d/*dasd* -rw-r--r-- 1 root root 363 Jul 24 2020 /etc/udev/rules.d/41-dasd-eckd-0.0.10bf.rules -rw-r--r-- 1 root root 363 Jan 10 2020 /etc/udev/rules.d/41-dasd-eckd-0.0.6000.rules -rw-r--r-- 1 root root 396 Sep 5 2019 /etc/udev/rules.d/41-dasd-eckd-0.0.8002.rules -rw-r--r-- 1 root root 396 Jun 9 2019 /etc/udev/rules.d/41-dasd-eckd-0.0.8008.rules -rw-r--r-- 1 root root 347 Apr 10 2019 /etc/udev/rules.d/51-dasd-0.0.8008.rules -rw-r--r-- 1 root root 347 Dec 10 2018 /etc/udev/rules.d/51-dasd-0.0.8007.rules -rw-r--r-- 1 root root 538 Dec 15 2016 /etc/udev/rules.d/51-dasd-0.0.ff03.rules -rw-r--r-- 1 root root 536 Dec 15 2016 /etc/udev/rules.d/51-dasd-0.0.ff00.rules -rw-r--r-- 1 root root 536 Dec 15 2016 /etc/udev/rules.d/51-dasd-0.0.ff02.rules -rw-r--r-- 1 root root 536 Dec 15 2016 /etc/udev/rules.d/51-dasd-0.0.ff01.rules -rw-r--r-- 1 root root 347 Nov 6 2013 /etc/udev/rules.d/51-dasd-0.0.8006.rules -rw-r--r-- 1 root root 347 Aug 27 2013 /etc/udev/rules.d/51-dasd-0.0.8005.rules -rw-r--r-- 1 root root 347 Aug 27 2013 /etc/udev/rules.d/51-dasd-0.0.8004.rules -rw-r--r-- 1 root root 347 Jun 19 2013 /etc/udev/rules.d/51-dasd-0.0.8003.rules -rw-r----- 1 root root 347 Aug 26 2011 /etc/udev/rules.d/51-dasd-0.0.8001.rules -rw-r----- 1 root root 347 Aug 26 2011 /etc/udev/rules.d/51-dasd-0.0.8000.rules -rw-r--r-- 1 root root 347 Jun 18 2010 /etc/udev/rules.d/51-dasd-0.0.0102.rules -rw-r--r-- 1 root root 347 Jun 18 2010 /etc/udev/rules.d/51-dasd-0.0.0101.rules The newer disks are all 41's. We probably won't do many if any upgrades to 15. It'll be replacement servers. But it sounds like if we do, re-doing them as 41s would be a good idea. Which presumably would just be erasing them and doing a chzdev -e again. -----Original Message----- From: Linux on 390 Port <[email protected]> On Behalf Of Aria Bamdad Sent: Friday, August 20, 2021 2:09 PM To: [email protected] Subject: Re: [LINUX-390] Warning if upgrading SLES12 to SLES15 SP3 Quoting Mark Post <[email protected]>: > On 8/19/21 6:17 PM, Aria Bamdad wrote: >> The upgrade to SP3 appears to >> cause a change in the udev definitions for the DASD defined on the server >> (in /etc/udev/rules.d) . For SLES 12 systems, these rules are >> 51-dasd-0.0.0xxx.rules files but it seems that for SLES15, they change >> format and number to 41-dasd-eckd-0.0.0xxx.rules. > > > This change actually happened with SLES12 SP4, when the chzdev and > lszdev tools were introduced to s390-tools by IBM. > > That's odd because none of my SLES 12 SP4 or SP5 systems have 41 rules. In fact none of my upgraded servers from 12 to 15 have them even for 15 SP1 or SP2. This happens at SP3 for me. >> However, this change does >> not happen for an upgraded SLES12 system to SLES15 until you upgrade to >> SLES15SP3. Once you upgrade to SP3, then the old 51-dasd rules are renamed >> with the '.legacy' extensions, new 41- rules are created. The rules for the >> vdisk for swap are left alone and thus after the upgrade, the swap >> partitions are no longer activated. There is more to this but I will not go >> into detail. > > Question, for each of the udev rules renamed to .legacy, is there an > equivalent 41-* rule present? > Only the eckd device rules were renamed from 51 to 51 with .legacy extension. Then new 41 rules defined for them. The FBA devices, namely the two vdisk swap disks were left alone with 51 rules and not 41 rules were defined. There are messages in the y2log file from mkinitrd stating it is skipping 51 rule devices. I have reported these to SUSE but they tech said she has no access to Z system so is testing on another architecture. I don't think that will help! Aria > > Mark Post > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO > LINUX-390 or visit > https://urldefense.com/v3/__http://www2.marist.edu/htbin/wlvindex?LINUX-390__;!!F9svGWnIaVPGSwU!7IhAnfBAvEEizayUvnXC9GvMEe2vaWACz4SktcsbZjL8DahBsSXQwOt-9aRJfDNXF_zy0Oo$ > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit https://urldefense.com/v3/__http://www2.marist.edu/htbin/wlvindex?LINUX-390__;!!F9svGWnIaVPGSwU!7IhAnfBAvEEizayUvnXC9GvMEe2vaWACz4SktcsbZjL8DahBsSXQwOt-9aRJfDNXF_zy0Oo$ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
