Re: SLES15SP4 IPL failure: stage2 boot loader

and initrd from the guest disk and storing it on the host to IPL the guest with a direct kernel boot. -Original Message- From: Linux on 390 Port On Behalf Of Christian Borntraeger Sent: Thursday, August 3, 2023 03:08 To: LINUX-390@VM.MARIST.EDU Subject: [EXTERNAL] - Re: SLES15SP4 IPL

Re: SLES15SP4 IPL failure: stage2 boot loader

Am 02.08.23 um 21:11 schrieb Alan Haff: I have a SLES15 SP4 system running under KVM on a z13s that refuses to IPL after upgrading from SP3. The failure message is "! Cannot read stage2 boot loader !". I've IPLed into a rescue shell from the SP4 ISO, set up a chroot environment, and re-ran

Re: Taking some time

Thank you Mark for all your work! I think we met first at a zExpo or SHARE (around 2005?) and you have always been a person that did a lot of work helping others. Very much appreciated! All the best for your future life :-) Christian Am 15.02.23 um 16:55 schrieb Mark Post: All, I'm retiring

Re: zLinux 3270 console support

Am 14.11.22 um 22:11 schrieb Alan Altmark: Sven asked about this on an internal IBM discussion channel and I mentioned that there are two issues that I can see in the Linux 3270 support: 1. Linux is definitely doing it wrong on z/VM. Linux infers the dimensions of the screen from a model

Re: Openshift SNO on Z (KVM)

Am 17.10.22 um 05:24 schrieb Grzegorz Powiedziuk: Hello, has anyone tried installing openshift SNO (single node) on Z? I was able to install it on x86 using the official procedure from redhat. But going through the same process with KVM on Z doesn't work well so far. I know it is not supported

Re: Moving LUNs using z/VM

on behalf of Christian Borntraeger Sent: Wednesday, April 6, 2022 1:56 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: Moving LUNs using z/VM Am 05.04.22 um 23:19 schrieb Martha McConaghy: I have a few RHEL servers that run on z/VM but boot off of a direct attached SAN LUN (not an EDEV or ECKD

Re: Moving LUNs using z/VM

Am 05.04.22 um 23:19 schrieb Martha McConaghy: I have a few RHEL servers that run on z/VM but boot off of a direct attached SAN LUN (not an EDEV or ECKD). They reside on an old DS8870 and I need to move them to a new DS8910. (No PPRC, GDPS, etc.) Is there a way that I could use VM to copy

Re: openJDK - openJ9

I asked our Java people and they answered the following: I believe when you're using the api query that requests a specific version, for OpenJ9 builds you need to include the OpenJ9 version in the `release_name` field. If I change your url below from "11.0.13+8" to "11.0.13+8_openj9-0.29.0" it

Re: RHEL 6.10 installation under KVM failure

On 19.05.21 19:59, Alan Haff wrote: I'm attempting to install RHEL 6.10 under KVM on a z13s and haven't been able to get the installer to IPL. When I try to IPL off of the ISO it fails with: LOADPARM=[] Using virtio-scsi. SCSI CD-ROM detected. ! Cannot IPL this ISO image ! When I try

Re: SYSASCII Console for Linux images

On 02.03.21 21:56, Dave Jones wrote: Thinking about this a little more, I think what would be nice to have is something along the lines of the OSA-ICC, which presents locally attached 3270 device to the O/S, but is reachable via TCP/IP. We could call it the OSA-ASC and it would present a

Re: QEMU w/TCG: emulate missing CPU features?

On 01.03.21 18:52, Alan Haff wrote: > Greetings, > > Will QEMU using TCG instead of KVM emulate CPU features that are missing on > the host processor? Specifically, will it emulate ESA/390 architecture on a > z14 or z15 with this config: > > > z900.3 > > > for example? I think TCG

Re: Looking for advice setting up SMC-D between RHEL and z/OS

On 08.12.20 17:58, Eric Chevalier wrote: > My apologies for the poor formatting of my original message. Let's try again: > > [root@zlinux4 Temp]# hostname > zlinux4.phx > [root@zlinux4 Temp]# > [root@zlinux4 Temp]# date > Tue Dec  8 06:37:35 PST 2020 > [root@zlinux4 Temp]# > [root@zlinux4 Temp]#

Re: RHEL 8.3 install stuck

On 08.12.20 15:03, Rich Smrcina wrote: > Friends, > > We are trying to install RHEL 8.3 and the initial boot freezes at a specific > point. > > Below is the parm file, the Q VSWITCH output for that machine, and the last > several messages of the console log. > > I’m sure I’m missing something

Re: Moving a Linux guest from z/VM to KVM?

On 01.12.20 12:07, Richard J Moore wrote: > Is that really possible (KVM guest <-> z/VM guest)? > As far as I am aware the KVM and zVM hypervisors share no metadata > regarding the guest's set up. Nor do they share any of the protocols used > in live (or dead) guest relocation. > > Am I

Re: Moving a Linux guest from z/VM to KVM?

On 30.11.20 21:10, Mark Post wrote: > On 11/30/20 1:16 PM, Alan Haff wrote: >> I have a number of Linux guests running under z/VM. I'd like to move some of >> them to a KVM host running in another LPAR. Naively I tried DDRing a guest's >> disks to new volumes and IPLing off of the new volumes.

Re: performance problems db2 after moving from AIX

On 03.11.20 14:46, Grzegorz Powiedziuk wrote: > Hi, I could use some ideas. We moved a huge db2 from old p7 aix to rhel7 on > Z and we are having big performance issues. > Same memory, CPU number is down from 12 to 10. Although they had > multithreading ON so they saw more "cpus" We have faster

Re: We are expecting...

On 15.10.20 15:38, Frank M. Ramaekers wrote: > ...a z15 and we currently are running on a zBC12. So, I can I be sure that > my ClefOS will run just fine on my new machine (both have IFLs). > > cat /etc/redhat-release > CentOS Linux release 7.8.2003 (AltArch) > > uname -a > Linux host.domain.com

Re: Overcommitting zLinux CPU

On 02.08.20 06:36, Alan Altmark wrote: > > A physical core has a certain amount of “horsepower” in it. It can, at top > speed do X amount of work. > > In SMT, you split the core in half, creating two execution contexts (CPUs) > instead of just one. The two CPUs share resources on the physical

Re: SYSASCII console use for Linux

On 24.07.20 00:40, Davis, Larry (National VM Capability) wrote: > I found this statement in the Linux-390 archives from Rick Troth and was > wondering if any one has used this interface or if there are more details on > using it > > *Linux sees an ASCII "system console"* > > This is where I

Re: z/15 and SLES 11SP4

On 22.07.20 14:24, Christian Borntraeger wrote: > On 22.07.20 13:07, Christian Borntraeger wrote: >> On 21.07.20 23:40, Victor Echavarry wrote: >>> Does anybody has an IBM z/15 running z/Linux SLES 11 SP4 >>> kernel-default-3.0.101-108.87.1? we are in a middle of migrat

Re: z/15 and SLES 11SP4

On 22.07.20 13:07, Christian Borntraeger wrote: > On 21.07.20 23:40, Victor Echavarry wrote: >> Does anybody has an IBM z/15 running z/Linux SLES 11 SP4 >> kernel-default-3.0.101-108.87.1? we are in a middle of migration from SLES >> 11 to 12 that supposed to finish at

Re: z/15 and SLES 11SP4

On 21.07.20 23:40, Victor Echavarry wrote: > Does anybody has an IBM z/15 running z/Linux SLES 11 SP4 > kernel-default-3.0.101-108.87.1? we are in a middle of migration from SLES 11 > to 12 that supposed to finish at the end of year. Our company buy a z/15 and > we want to know is the SLES 11

Re: KVM question.

On 30.06.20 22:19, Tom Huegel wrote: > This has probably been discussed quite a bit but I wanted to ask for some > real user feedback. > > I have a customer that is interested a POC of z/VSE zLINUX VTAPE. > Unfortunately they do now have z/VM so the zLINUX would have to be in an > LPAR. So the

Re: z15 on-board compression

On 15.06.20 13:49, Christian Borntraeger wrote: >> Wow more than 10x faster on dd - was not expecting that as I didn't think > > This looks more like an I/O difference. > >> it uses compression. But the compress with gzip -c, was only 25% faster on >> the z15 while

Re: z15 on-board compression

On 10.06.20 01:36, Michael MacIsaac wrote: > Hello list, > > I heard about the new DFLTCC instruction on the z15, aka on board > compression. I tried a quick experiment to see the difference from a z14. > Disclaimer: I am not a performance expert. > > Here are three commands to create, compress

Redbook draft: The Virtualization Cookbook for IBM Z Volume 5: KVM

There is now a redbook draft for a KVM cookbook: http://www.redbooks.ibm.com/Redbooks.nsf/RedpieceAbstracts/sg248463.html?Open As this is still in draft state review feedback is still possible: redbo...@us.ibm.com Christian --

Re: zLINUX end user provisioning

On 11.12.19 18:00, Alan Altmark wrote: > On Wednesday, 12/11/2019 at 04:18 GMT, "Hamilton, Robert" > wrote: >> I'm interested in this too. I am following the read-only root > documentation, >> which is starting to show its age a little (RedPaper redp4322 is good, > but >> copyright 2008), but

Re: Openshift Origin on KVM on LinuxONE

On 27.09.19 10:47, Johan Schelling wrote: > I did some additional testing yesterday using gdb and strace…. > > gbd didn’t return any useful information, but that might also be due to my > lack of gdb experience. Running strace resulted in the following: > > ... >

Re: Openshift Origin on KVM on LinuxONE

On 24.09.19 11:13, Johan Schelling wrote: > Goodmorning all, > > I have been playing around for a while now with Openshift Origin on our > LinuxONE system following the great “Getting_Started_with_OpenShift_v3.10” > guide…. > When using zVM as a hypervisor I can deploy an Openshift cluster

Re: KVM and FCP disk without SAN switch

On 17.09.19 17:18, Johan Schelling wrote: > I remember that when we started with KVM on LinuxONE around 3/4 years ago we > connected our V7000 directly (without a SAN switch) to the LinuxONE. zVM > worked like a charm, but we had a lot of problems with (the then IBM > supplied) KVM….. We had

Re: KVM and FCP disk without SAN switch

On 16.09.19 21:19, Jim Elliott wrote: > For z/VM you must have a SAN switch to connect FCP attached disk. Is this > also true for KVM (Ubuntu if it matters)? As KVM borrows the FCP support from Linux the answer is the same as for Linux in LPAR. In general the Linux code supports switched fabric

Re: NSS not possible in SLES 12

On 04.09.19 21:03, Rick Troth wrote: > On 9/4/19 11:39 AM, Christian Borntraeger wrote: >> On 04.09.19 16:41, Scott Rohling wrote: >>> Let's start with who or what said it wasn't possible ? >> [...] >>>> Just to be sure, by "nss" I

Re: NSS not possible in SLES 12

On 04.09.19 16:41, Scott Rohling wrote: > Let's start with who or what said it wasn't possible ? [...] >> Just to be sure, by "nss" I meant Named Saved System. [...] >>> what is the reason for nss not being possible with SLES from version 12? [...] The Linux kernel now makes use of

Re: Issues trying to install RHEL 8

On 31.07.19 04:52, Martha McConaghy wrote: > Has anyone run into problems getting RHEL 8 to install on Z? I've run into a > weird problem.  Two different experienced Linux guys have looked at it, and > we are all stumped. > > Background: > > The install is being done in a 3G virtual machine on

Re: Bad Superblock Expanding FS Redhat8

On 18.07.19 17:48, Frank Wolfe wrote: > Good day all > > I am trying to expand my rootvg and did the following steps > > vmcp link '* 204 204 mr' > > cio_ignore -r 204 > > chccwdev -e 204 > > dasdfmt -b 4096 -d cdl -p /dev/disk/by-path/ccw-0.0.0204 > > fdasd -a /dev/disk/by-path/ccw-0.0.0204 > >

Re: VoltDB on z?

On 07.01.2019 22:32, Jeffrey Barnard wrote: > Neale, > > CRC-32 is not the same as CRC-32c. > > CRC32C uses a different polynomial (0x1EDC6F41, reversed 0x82F63B78) but > otherwise the computation is the same. The results are different, of > course. This is also known as the Castagnoli CRC32 and

Re: KVM guest networking under z/VM

On 03.01.2019 19:32, Alan Haff wrote: > I'm setting up a KVM-hosted guest in a SLES12 VM running under z/VM and I'm > not able to get networking going in the KVM guest. > > Host: z/VM 6.4 > KVM host: SLES12SP4 > KVM guest: SLES12SP4 > > (The KVM host must run under z/VM; I don't have any

Re: KVM guest networking under z/VM

On 08.01.2019 01:35, Robert J Brenneman wrote: > KVM Host bridges require a L2 network interface with the 'bridge_role' > attribute set on the OSA device supporting the bridge. > ref: https://public.dhe.ibm.com/software/dw/linux390/docu/lhs4dd05.pdf > chapter 14, section Layer 2 promiscuous mode

Re: Openstack on zlinux

On 10/09/2018 08:16 PM, Johan Schelling wrote: > At ICU we run Openstack on Ubuntu on x86 and s390x (LinuxONE)…. build from > source using a couple of openstack-ansible playbooks. > Originaly the playbooks didn’t offer support for s390x but they were adapted > by my colleague Chris. If you

Re: Alpine Linux 3.8 rc2 on z/VM and KVM

On 06/22/2018 05:18 PM, R P Herrold wrote: > On Thu, 21 Jun 2018, Christian Borntraeger wrote: > >> I can easily boot that iso image with kvm: >> >> $ qemu-system-s390x -enable-kvm -nographic \ >> -cdrom alpine-standard-3.8.0_rc8-s390x.iso >> LOADPARM=[

Re: Alpine Linux 3.8 rc2 on z/VM and KVM

On 06/21/2018 06:35 PM, Tuan M. Hoang wrote: > On 06/21/2018 11:51 AM, Christian Borntraeger wrote: >> >> >> On 06/21/2018 04:35 PM, Tuan M. Hoang wrote: >>> Hi Christian, >>> >>> On 06/13/2018 03:32 AM, Christian Borntraeger wrote: >>>&

Re: Alpine Linux 3.8 rc2 on z/VM and KVM

On 06/21/2018 04:35 PM, Tuan M. Hoang wrote: > Hi Christian, > > On 06/13/2018 03:32 AM, Christian Borntraeger wrote: >> On 06/13/2018 05:58 AM, Tuan M. Hoang wrote: >>> Hello, >>> >>> The Alpine Linux Project has released the the 2nd release candidate

Re: Alpine Linux 3.8 rc2 on z/VM and KVM

On 06/13/2018 05:58 AM, Tuan M. Hoang wrote: > Hello, > > The Alpine Linux Project has released the the 2nd release candidate for > its 3.8 stable series with support for z/VM and KVM. > > For the installation guide and more information, please visit : > https://wiki.alpinelinux.org/wiki/S390x.

Re: Linux "sleep" command not waking up under high CPU utilization

On 04/19/2018 04:56 PM, Dave Jones wrote: > Thanks to all who responded to my query. At least we now know why the > problem is occurring, and we will try some internal z/linux tuning. > Anything useful that can be shared with the list?

Re: Linux "sleep" command not waking up under high CPU utilization

On 04/18/2018 03:36 PM, Dave Jones wrote: > Hello, gang. > > I have a very simple bash script that runs a trivial data collection > task, and then does a Linux "sleep im" to wait a minute before running > the data collection task again. Under very high CPU loads (> 90%) I have > noticed that the

Re: /proc/sysinfo on other architectures?

On 03/26/2018 03:38 PM, Michael MacIsaac wrote: > Thanks to all who replied. > > So does anyone know how to query the hipervisor hierarchy, or if a Lintel > is running on "bare metal"? systemd-detect-virt should work. > > -Mike > > On Mon, Mar 26, 2018

Re: /proc/sysinfo on other architectures?

Yes, /proc/sysinfo is a method to expose parts of the STSI instruction to unpriviledged code. This is very z-specific. On 03/26/2018 02:38 PM, Michael MacIsaac wrote: > Hello list, > > Is /proc/sysinfo a zLinux thing only? > > I got on a Lintel VMWare virtual machine and was surprised to not see

Re: Box confusion

First idea: Is one guest part of a relocation domain with a z13 and the other one is not? the cpu info is faked to the minimum machine in the relocation domain, (as this is used by software to decide what to use) while sysinfo shows the real system. On 01/24/2018 08:25 PM, Marcy Cortes wrote: >

Re: How many Intel cores does an IFL emulate

As Jon Noltin already stated, z/OS does support SMT-2 for ZIIPs. In addition to that, with z14 the system assist processors also run SMT-2 enabled, so we have IFLs, ZIIPs. SAPs that can enable SMT2. On 11/09/2017 02:52 AM, Alan Altmark wrote: > Thanks for advertising, Soup! :-) > > In fact,

Re: RHEL 7.4 - Difficulties

On 11/06/2017 10:24 PM, Mark Post wrote: On 11/6/2017 at 03:16 PM, wrote: >> Hi, >> Thank you for the response. Umm... I'm not sure about this but I >> circumvented with >> >> >> >> echo 'GRUB_CMDLINE_LINUX=net.ifnames=0' >>/etc/default/grub >> >> >> I would

Re: vmcp cannot allocate memory

As I said, In the future vmcp will make use of the CMA allocator, which should make sure that the allocation will succeed. The advantage of that allocator is that this memory is not kept free, but it can be used by movable pages. So if vmcp needs that memory, CMA will be able to move that memory

Re: vmcp cannot allocate memory

Yes, this is memory fragmentation. Heiko recently did some changes that should improve the situation. This upstream change https://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git/commit/?h=features=cd4386a931b6310b05559d2e28efda04d30ab593 will change the allocation from below 2GB to

Re: KVM's /proc/sysinfo

On 06/22/2017 02:37 PM, Michael MacIsaac wrote: > Hello list, > > Could someone who has access to a KVM LPAR, please give me sample output > from /proc/sysinfo for the hipervisor? > > This is what I get on a z/VM LPAR: This is a z/VM guest not and LPAR, no? > > # grep ^VM00 /proc/sysinfo > VM00

Re: Debian CPU limitation?

On 03/22/2017 12:51 PM, Ray Mansell wrote: > Thank you all for the information. It would appear we are stuck with 32 > CPUs for the moment and, since I'm retiring at the end of next week, I > guess my replacement will have to decide how to proceed :-) > > Thanks again, > Ray As a last duty, can

Re: Debian CPU limitation?

On 03/21/2017 09:05 PM, Ray Mansell wrote: > We've been running some beefy Debian servers, but of course one of them > was not beefy enough, and we were asked if we could increase the number > of CPUs from 32 to 48. Easy, I thought, until I rebooted the beefier > server only to discover it had

Re: vector instructions

On 09/28/2016 05:22 PM, Richard Plangger wrote: > Hi, > > I'm working on pypy s390x port and I'm currently evaluating the vector > instructions. I have one virtual machine access in marist.edu. > > The vector optimization for PyPy do not show very good speedup for > s390x. This is strange,

Re: vdisk swap in sles 12

On 08/10/2016 07:48 PM, Marcy Cortes wrote: ... >> Aug 10 11:55:32 zlnx169 swapon[3349]: swapon: /dev/dasdf1: read swap >> header failed: Success Aug 10 11:55:32 zlnx169 kernel: Adding 92k Another question. How did you prepare the swap disk, with mkswap in the guest or with some CMS tool?

Re: vdisk swap in sles 12

On 08/10/2016 07:11 PM, Marcy Cortes wrote: > Working on VDISK in sles 12. > We've always just run a /etc/init.d/boot.local on sles 11 but I decided to > try it the cookbook way. > > I have 4 disks. > Only FF00 and FF02 show up, but swapon -a later will bring the other 2 online. > > This is in

Re: "clever"(?) way to find files with duplicate contents.

On 07/06/2016 03:35 PM, John McKown wrote: > I have a directory which has a number of files in it. I want to find out > which files have identical content. Please, don't ask why (I'm an idiot?). > Since these are text files, my first thought was to use diff. That is, list > the files. For each

Re: Ubuntu 16.04 LTS Beta for IBM LinuxONE and z Systems

On 04/04/2016 08:01 PM, Neale Ferguson wrote: > The z13 returns: > > 0xfb6bfffb 0xfcfff840 0x001c > > The bit string you are getting has bits off that are expected to be on. > This missing bits are (words 2 & 3): > > 0800 0040 The kernel was fixed to

Re: Does anybody know, what functionality SVC 29 does have on zLinux ? thx.

On 03/23/2016 12:30 PM, Leopold Strauss wrote: SVC is the instruction that causes a supervisor call interrupt. This is wired up in Linux to make a system call, in this case sys_pause see man 2 pause or http://linux.die.net/man/2/pause

Re: Status of VDISK after swap space usage

On 12/10/2015 05:58 AM, Alan Altmark wrote: > On Wednesday, 12/09/2015 at 08:15 GMT, Barton Robinson > wrote: >> My request to get this fixed was rejected by ibm several years ago. The >> problem is that even though linux doesn't have anything on the vdisk, >> z/vm

Re: zKVM on zpdt

Am 06.10.2015 um 18:32 schrieb Mark Post: On 10/6/2015 at 10:51 AM, Carsten Otte wrote: >> Hi Tito, >> >> I am sorry that this time I don't have a workaround. The installer code >> assumes diag 308 IPL functions to be available, however it is'nt on zPDT. I >> believe this

Re: How to force crash dump from hung Red Hat guest

Am 06.10.2015 um 17:41 schrieb Vitale, Joseph: > Hello, > > Running Red Hat 6.6 under zVM 6.3. I had a guest hang and unable to issue > linux commands to force a kernel crash dump( echo c > /proc/sysrq-trigger ). > > Any suggestions how that can be accomplished? > If kdump is setup properly,

Re: zKVM installation problem

Am 05.10.2015 um 17:11 schrieb Ray Mansell: > I'm trying to install zKVM in a virtual machine, but no matter what > installation options I choose, I always get the following error: > > 2015-10-03 14:39:40,900 - controller.controller - INFO - InstallProgress > screen > 2015-10-03 14:39:40,901 -

Re: SLES12 + EDEV + bug

Am 01.10.2015 um 04:59 schrieb Grzegorz Powiedziuk: > I think I might have found a small bug in latest update for SLES12 so this > is just a FYI for everyone who made the same mistake I did. > > If you use edevices, you know that the FBA driver in linux automagically > (like Mark explained

Re: Documentation for Linux on z Systems and KVM - new

Am 24.09.2015 um 03:34 schrieb Grzegorz Powiedziuk: > That’s very interesting. I wasn’t aware of this “stress” tool. So I’ve > downloaded it and run a couple tests with it. > If I run basic —cpu 1 test (-n according to help is a dry run), the KVM > server spins the CPU 100% in user time. So no

Re: Documentation for Linux on z Systems and KVM - new

Am 24.09.2015 um 01:08 schrieb Mark Post: On 9/23/2015 at 05:57 PM, Grzegorz Powiedziuk wrote: >> As long as KVM can get close to z/vm performance then I >> see a great potential in it. > > I don't think you're going to see that for quite a while. I think we

Re: Documentation for Linux on z Systems and KVM - new

Am 24.09.2015 um 00:42 schrieb Viktor Mihajlovski: > On 23.09.2015 15:32, Grzegorz Powiedziuk wrote: >> BTW, I was playing with KVM few days ago and it looks pretty awesome in >> terms of maintaining the environment and deploying new VMs but the >> performance for me was really bad. >> And I

Re: How to find a memory leak?

Am 10.07.2015 um 14:18 schrieb Bruce Hayden: The message sent to stderr is not documented in the device drivers book. It tells you about the response code of 2, but the description of that response code doesn't say anything about the error message to stderr or that the message tells you how

Re: How to find a memory leak?

Am 09.07.2015 um 19:16 schrieb Michael MacIsaac: I'm going to stop here for now. I've learned a lot about Linux memory from this thread (but that's easy when you don't know much to begin with :)). I guess a question to the Linux developers in Germany would be: If vmcp is called with a

Re: How to find a memory leak?

Am 10.07.2015 um 13:19 schrieb Christian Borntraeger: Anothing thing: 1M is quite large (the larges contiguous memory that Linux wants to allocate as slab). So try to not use that unless you need it. If you want to know how much memory is needed, then vmcp gives you back the result

Re: Dynamically varying a CPU offline in ZVM

Am 24.03.2015 um 16:13 schrieb Bruce Hayden: You mark the CPU reserved (or really, give the number of reserved CPUs) in the LPAR profile. Putting reserved CPUs and memory in the LPAR profile avoids IPLs! On newer systems (does work on z196) you can dynamically add CPUs to the LPAR profile and

Re: sles 12

Am 30.10.2014 15:15, schrieb Levy, Alan: We currently have a z10 and z196. We have tried the sles12 install on both systems and got the following error on both: LOADING SLES12 FILES INTO READER... DMSACP723I I (500) R/O NO FILES PURGED RDR FILE 0017 SENT FROM MASTER12 PUN WAS 0017

Re: vmcp on RHEL 7?

On 10/01/2014 02:13 PM, Michael MacIsaac wrote: Hello list, Is vmcp is no longer a module on RHEL 7 (but it still works): # *modprobe vmcp* modprobe: FATAL: Module vmcp not found. # *vmcp q t* TIME IS 08:09:48 EDT WEDNESDAY 10/01/14 Is this a change in the s390-tools, or just a RHEL 7

Re: bogomips

On 21/02/12 21:18, William Carroll wrote: Isn't a BOGOMIP just a calculated loop value (ie how many times through the loop) used to do some internal timing. It depends. On recent Linux versions (2007) the bogomips value is based on the cpu capacity from store system information sysib 1.2.2.

Re: ext3...

On 15/12/11 19:09, Offer Baruch wrote: Hi, This is not a z/Linux or z/VM question but Let me ask you guys something about ext3... I guess that most of you are using it in production... How is it possible that i am using ext3 in my production systems and face stuff like: 1. Corrupted FS

Re: Assembler question

Am Mittwoch 07 Juli 2010, 10:12:12 schrieben Sie: My colleague is porting some assembler code to z Linux (gcc compiler ) and got some invalid op code assembler error for EPSW (extract psw) gcc should handle epsw just fine. And on SLES10 this works indeed: # cat epsw.s .globl main main: epsw

Re: zLinux entropy

Am Samstag 01 Mai 2010 23:11:28 schrieb Greg Oldendick: On May 1, 2010, at 6:32 AM, Richard Troth wrote: But the crypto cards have their own API. I'n asking about the kernel's entropy function. Or is there a way to get the kernel to use the crypto? If you have the crypto card, you

Re: zLinux entropy

Am Montag 03 Mai 2010 16:36:20 schrieben Sie: I'm not seeing /dev/hw_random. The z90crypt module must be loaded and your crypto card and the z90crypt driver in your distribution must support the large random number feature. The feature was introduced in 2008:

Re: SLES11 - shutdown seems to take forever

Am Mittwoch 24 Februar 2010 17:31:47 schrieben Sie: Hi Rich, It's the barebones install ( ala Cookbook ). After this md: stopping all md devices., you can count to about 11-12 Mississippi's ( I don't own a stopwatch :-) before it actually comes down whereas under SLES9/SLES10 the count

Re: SIGILL problem on s390x

Am Freitag 20 November 2009 11:53:44 schrieb rui: Hi, The problem is, it happens at the start of the below mentioned function TDmain::Initialise (this=0x176c4c8) at crutil2.cpp:7571 Before there was a call to srand(time(NULL)) there(the first line), i thought that was the problem, i have

Re: Converting EBCDIC with NEL to ISO8859-1

Am Freitag 20 November 2009 13:15:50 schrieb John McKown: I'm trying to figure out a better way to do this. Given: I have some EBCDIC text files on Linux. Instead of being delimited with 0x25 (NewLine) instead of 0x15 (linefeed). This is how z/OS UNIX does text files and I cannot change it.

Re: SIGILL problem on s390x

0x007cc758 _ZN7TDTmain10InitialiseEv+48: lr %r11,%r15 0x007cc75a _ZN7TDTmain10InitialiseEv+50: st %r2,96(%r11) 0x007cc75e _ZN7TDTmain10InitialiseEv+54: lhi %r1,639 0x007cc762 _ZN7TDTmain10InitialiseEv+58: st %r1,100(%r11) 0x007cc766

Re: SIGILL problem on s390x

Am Freitag 20 November 2009 15:54:07 schrieb rui: Hi Christian, Yes, there is floating point precision related stuff, in the code on the very first line. unsigned int cm = 0x27f; _FPU_SETCW(cm); Ok. That does the sfpc. This is done for all linux systems for achieving 64 bit floating

Re: How do you . . . . setting up a user to force him to change his password?

Am Dienstag 13 Oktober 2009 17:31:01 schrieb CHAPLIN, JAMES (CTR): When setting up a new user, I want to be able to expire the user's temporary password, allowing the user to login with the temporary password, but force him/her to create his own password on the first login. I know how to set

Re: When will CMMA be removed from the kernel?

Am Mittwoch 23 September 2009 07:15:23 schrieb Mark Post: On 9/22/2009 at 11:35 PM, Leland Lucius lluc...@homerow.net wrote: Is it being removed entirely or will distros be providing it? First, let's distinguish between CMM-1 and CMM-2/CMMA. It is the latter that is being dropped by

Re: Which user env. variable tell me that it is in su - mode ?

Am Tuesday 03 March 2009 11:10:46 schrieb Marco Bosisio: Hi, do you know wich user environment variable I have to test (executing a bash script) to know when I am in su - (switch user mode) ? Firstly, You should ask yourself why you need that information. If your script behaves

Re: Which user env. variable tell me that it is in s u - mode ?

Am Tuesday 03 March 2009 13:58:59 schrieb Marco Bosisio: I customized the profile.local and it launch a script_xxx at login. When use 'su - ' I would like that the new user does not execute the script_xxx again. Ah, ok. The thing is, profile is for login shells. And with - you

Re: Kernel bug in SLES 9

Hello Berry, I have no advise on your specific problem, but a kernel bug, oops, warning or panic is a very strong indication that this is a real code problem. I suggest to open a service request/problem ticket. hope this helps Christian Message from /var/log/messages: kernel: kernel BUG at

Re: question on top

Am Montag, 8. Dezember 2008 schrieb Barton Robinson: Yes, top lies. This is no longer true with SLES10+ and RHEL5+. They use the stpt instruction for accurate accounting. If you still see wrong numbers with a recent distro, this would be a bug and should be reported. So are you really saying a

Re: question on top

Barton, Sorry Christian, but with the latest and greatest, there are many cases where Linux and TOP now seriously under report utilization (I think by factor of 5 in the lab, and by 4 in Do you have a short description of one test case? If there is a real problem, we should fix it. a

Re: I just can't git it

Am Montag, 6. Oktober 2008 schrieb Michael MacIsaac: # rpmbuild -bb git.spec error: Failed build dependencies: asciidoc is needed by git-1.5.6.5-9.1.s390x curl-devel is needed by git-1.5.6.5-9.1.s390x sgml-skel is needed by git-1.5.6.5-9.1.s390x xmlto

Re: I just can't git it

Am Montag, 6. Oktober 2008 schrieb Michael MacIsaac: -) Then using git failed, but at least it ran. # git clone http://git.gitorious.org/open-ovf/mainline.git Initialized empty Git repository in /usr/local/src/mainline/.git/ fatal: http://git.gitorious.org/open-ovf/mainline.git/info/refs

Re: swap to DCSS documentation/cookbook?

Am Freitag, 8. August 2008 schrieb Mark Perry: Pieter Harder wrote: Hi list, I am starting to think about the possibilities 2GB above the bar DCSS in z/VM 5.4 will provide for replacing large Vdisk swap. But I can't find any usable documentation on how to do swap to DCSS. The basics are

Re: Hotplug agents

Am Mittwoch, 30. Juli 2008 schrieb Neale Ferguson: In SLES9 if I created a new device and device driver I could create an agent script and place it it /etc/hotplug such that devices could be automatically created. How does this work under SLES10? udev does now all the processing which was done

Re: Hotplug agents

Am Mittwoch, 30. Juli 2008 schrieb Neale Ferguson: Tks. Should I just be able to add an entry to 50-udev-default.rules or create a new file with just this entry: You can do both. But I prefer to create a new rule because then you can package that rule with your device driver/program etc. For

Re: Hotplug agents

Am Mittwoch, 30. Juli 2008 schrieb Neale Ferguson: lrwxrwxrwx 1 root root0 Jul 30 13:43 bus - ../../../bus/iucv -rw-r--r-- 1 root root 4096 Jul 30 14:15 local -rw-r--r-- 1 root root 4096 Jul 30 14:15 msglimit -rw-r--r-- 1 root root 4096 Jul 30 14:15 parmdata -rw-r- 1 root root 4096

Re: Hotplug agents

Am Donnerstag, 31. Juli 2008 schrieb Neale Ferguson: I don't see a devt in the device structure - struct device in include/linux/device.h. Yeah, right. I forgot. That was changed in 2006 or so. The devt was in struct class_device in older kernels.So you have to register the class device as

Re: Using ESCON attached 3590 for TSM 5.5 / Linux

Am Mittwoch, 16. Juli 2008 schrieb Mike Hammock: They are running SLES 10 SP1 in an instance on a FLEX-ES system. (Think of this as running in an LPAR on a normal system. That is, no zVM.) They have an ESCON connected 3590 that they can use from the Linux system with no problem, but

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