Dan,
nice to see it's an alive project, but can we get also the source rpm
or the mz.tgz archive? Or also the sources moved to a git repository?
It's about 99% in bash (with a small amount of JavaScript), so all the
code is in the RPM. The one exception may be the mz.spec file is not in
the
Dan,
what architecture is required for the
server rpm, is it s390x only
Yes, s390x only. A colleague for whom I have a lot of respect said words
to the effect of: In systems management, the temptation is to abstract as
much as possible across platform; systems management tools should drill
Mz was updated to version 2.14 today. Here are the changes:
-) Added a first draft at a z/VM health page
-) Utilized the popular VIR2REAL EXEC output in this page (does add some
complexity)
-) Added colors to most Web pages (good idea Alan!)
-) More drill-down in Web pages
-) Updated the PDF with
Rick,
Recommend you not use localhost for this testing.
We added a step in chapter 4 of The Cookbook to mount on the local host
using localhost: just to test that setting up the NFS exported directory
works. After verifying that the file system can be mounted, the very next
step is to umount it.
Larry,
When pulling files using the GET command in FTP from LINUX to VM, the
CR/LF is lost and the files end up as one huge line in CMS.
Wait, what? Are you pulling from VM or Linux? Try pushing from Linux to
z/VM (PUT).
I ran into this about a month ago, and there's a long thread.
The
You cannot loop-mount block devices over NFS.
So perhaps therein lies the problem. Perhaps the device has to first be
converted into a .iso file? There's an example with dd in section 4.3.1
of the latest Virtualization Cookbook:
http://www.vm.ibm.com/devpages/mikemac/CKB-VM62.PDF
Mike MacIsaac
JC,
using a laptop running Fedora 18 as the NFS, and loading from a real
DVD (not an iso image file).
Were you able to mount the NFS export locally (on the Fedora box) using
localhost?
And if so, were you able to 'cd' into that directory, then 'cd suse' and
see the RPMs?
Mike MacIsaac mikemac
JC,
mount -o ro,vers=3,nolock /dev/sr0 /tmp/iso
Is that an NFS mount? I'm not sure it's reading from /etc/exports and
utilizing the NFS server daemon.
Try this:
# mount localhost:/dev/sr0 /tmp/iso
Mike MacIsaac mikemac at-sign us.ibm.com
Hello lists,
I am pleased to announce a new experimental package named Mz (Managing
z) - a lightweight set of Linux bash scripts that provide both a command
line and a Web interface for systems management of z/VM and Linux. These
scripts work well between LPARs and CECs. An RPM and a PDF are
Hello lists,
Again, Mz is new experimental package that is a lightweight set of Linux
bash scripts that provide both a CLI and a Web interface for systems
management of z/VM and Linux. These scripts work well between LPARs and
CECs. Again, a disclaimer: if you are expecting quality,
Peter,
Could you make the srpm available ? I'd like to have a look and test
it locally.
There is no srpm. As the code is in bash, the RPM includes all the code.
However, it does not include the mz.spec file so I just uploaded that to
sourceforge.
Mike MacIsaac mikemac at-sign us.ibm.com
Anyone has idea about this problem?
Were the volumes CPFMTXA'd?
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Hello list,
A customer is moving from SLES 10 SP4 to SLES 11 SP2. Can kdump be used
on these to capture dumps? I'm assuming SLES 10 SP4 is too old (?)
On http://www.ibm.com/developerworks/linux/linux390/kernel-3.2.html I
read: Using kdump also requires s390-tools 1.17 and kexec-tools with s390
Hello list,
I'm looking at packages in the distros - specifically fping and tree. RHEL
6.3 has tree-1.5.3-2.el6.s390x.rpm, but I don't see fping. SLES 11 SP2 has
fping-2.4b2-94.22.s390x.rpm, but I don't see tree.
Am I missing either? Thanks.
Mike MacIsaac mikemac at-sign us.ibm.com
Michael,
tree-1.5.1-2.8.s390x.rpm is in the sle-11-sp2-sdk media
Excelleint - thanks for the quick reply!
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raise DeviceCreateError(str(e), self.name)
...
Interesting. I have been trying for 2-3 weeks and still can't get
through
the install.
Just a shot in the dark: did you try opening a root shell before kicking
off the installer and dasdfmting all disks?
Mike MacIsaac mikemac at-sign us.ibm.com
Tom,
I always get this error when it tries to write the configuration changes
to
disk.
Entering
debugger...
/usr/lib64/python2.7/site-packages/pyanaconda/storage/devices.py(796)create()
This sounds familiar. There's an issue (aka bug :)) documented on p. 115
of The Virtualization Cookbook
Tom,
Wait, on ww.sinenomine.net/products/vm/lxfmt I see:
This package contains a CMS utility to format and/or partition FBA disks
for Linux use.
Are these SCSI/FBA or ECKD disks?
Mike MacIsaac mikemac at-sign us.ibm.com
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Tom,
I use lxfmt to format the disk before starting the install.. That
doesn't
eliminate the error.
OK, like I said - a shot in the dark...
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Dan
The RHEL 6 Virtualization Cookbooks from IBM Redbooks can be also
useful.
Thanks for the plug (No, I don't get any royalties :)) I should point out
that there is a *Redbook* for RHEL 6, but the latest *whitebook* (if you
will), documents RHEL 6.2. That is at
Mark,
If you were looking for something like the Redbooks that Mike MacIsaac
has written, there aren't any. He's pretty much stuck with writing
about the two distribution providers that IBM has contracts with,
SUSE and Red Hat.
Correct.
But I remember someone with the initials MP helped to
why don't you use yum? it will resolve all dependencies for you
...
You can setup yum to resolve all the dependency for you
...
Setting up yum is documented in section 8.2.2 Configure yum for online
updates in the Virtualization Cookbook, again for completeness, at
Does anyone know the steps needed to accomplish this ?
One approach:
1) Copy off any changed config files
2) Reinstall at the first level with new names
3) Copy changed files back/redo config steps
Good practice, perhaps more reliable ...
Mike MacIsaac mikemac at-sign us.ibm.com
Leland, David,
Excellent! Thanks for contributing back to the community.
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Hello List,
I had written back on Oct 12th:
This is odd - I'm having a RHEL 6.2 system die on shutdown while trying
to
shut down the loopback interface:
Shutting down system logger: Ý OK ¨
Shutting down interface eth0: Ý OK ¨
Shutting down loopback interface: Ý OK ¨
INFO: task
Hello list,
Alan Levy wrote:
The link in the book is not working.
Sure enough, the link (z/VM file name) for the latest Virtualization
Cookbook is CKB-VM62, which I had just about everywhere in the book except
for one important place in section 4.2, where I had CKBKVM62. That is now
fixed.
As
Alan,
The link in the book is not working.
I was just able to get to
http://www.vm.ibm.com/devpages/mikemac/CKB-VM62.tgz
I opened with WinZip and see callsm1.exec
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Hello list,
I'm trying to clone a Linux and allow for the changing of the NIC triplet
(why? because I like pain :))
In this example, the SLES 11 SP2 golden image has a NIC 600-602 and the
target virtual machine is 1000-1002 - both connect to layer 2 VSWITCHes.
In
Mark,
Adding an rm command for that file to your cloning script should fix
things up.
Bingo! That fixed it perfectly. Thanks.
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Also, without going to CP (assuming under a 1st level z/VM):
# grep VM00 Name: /proc/sysinfo | awk '{print $3}'
TSAMTPM
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Scott,
Is /dev/oradata_vg/oradata_lv there?
No. Bot that file and the /dev/mapper file show up after reboot.
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David,
udevadm settle is not always reliable and the last response was
that you have to sit and poll until the device actually appears
This one is worse - the LV *never* appears in either directory until
after reboot and lvdisplay oradata_lv hangs the system. On the console
while
Progress - I'm working with Steffen off-line. There well may be a bug,
but as a workaround I am working with the devices (e.g. mpatha) rather
than the first partition of each device (mpathap1). With that change, the
new LV is available immediately. ...
Thanks for everyone's help.
Mike MacIsaac
This is on RHEL 6.2.
Some more info - the two PVs comprising the VG are FCP LUNs with two
CHPIDs/paths and multipathing set up.
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Hello list,
I'm trying to script the setup of a logical volume. Here's some output
from the code:
running: lvcreate -i 2 -I 64 -r 0 -l 100%VG -n oradata_lv oradata_vg
Logical volume oradata_lv created
running: udevadm settle
Mounting the logical volume /dev/mapper/oradata_vg/oradata_lv
Making
Hello list,
This is odd - I'm having a RHEL 6.2 system die on shutdown while trying to
shut down the loopback interface:
Shutting down system logger: Ý OK ¨
Shutting down interface eth0: Ý OK ¨
Shutting down loopback interface: Ý OK ¨
INFO: task vgs:2171 blocked for more than 120
fdisk can help.
Here is a little hack I named lunsizes that assumes up to 26 mounted
LUNs and friendly names (/dev/mapper/mapthx):
#!/bin/bash
# find LUNs in /dev/mapper and list in bytes and GiB
ls /dev/mapper/mpath[a-z] /dev/null 21
if [ $? != 0 ]; then # no LUNs found
echo No LUNs found in
Hello list,
Has anyone heard of cmsfscat or cmsfslst corrupting a CMS disk? A few of
us were sharing a common 191 disk R/W occasionally on CMS, but R/O on
Linux (by definition).
I ran a script that uses cmsfs and got this:
cmsfs_map_ADT(): directory RECFM 'V' not 'F'
cmsfs_vopen():
David,
sharing a common 191 disk r/w - simultaneously r/w'ing from two CMS
machines? ouch
Poor choice of words. Link mode was MR, so only one gets to write at a
time.
I have since learned that DDR to this disk was somehow involved, and that
is probably the smoking gun. It does sense that a
Hi list,
Is there a read/write CMS file system in the current distros? On a SLES
11 SP2 system, I search for CMS and only find:
│cmsfs │CMS Filesystem driver and uti│
│lcms │Utilities for the Little CMS │
│liblcms1 │Libraries for the Little CMS │
│liblcms1-32bit│Libraries
Rick,
You want the cms-fuse driver which is in s390-utils.
D'oh - I had it all along. Thanks for the quick reply.
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What it doesn't have is the laptop suspend
function - freeze everything and stop, but don't write to disk.
CP STOP and BEGIN?
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Hi,
I have a RHEL 6.2 system that I logged into OK yesterday and did some work
(including installing a number of RPMs). This morning I was unable to
login through SSH, though I'm sure I used the right password.
So I went to the console which still had root logged on and tried the
passwd
Filipe,
I think you best shot for now is to start RHEL in init 1 or
Single user mode, and put SELinux in permissive mode.
If it works, probably RACF is not behaving well with SELinux.
Thanks for the quick reply (and welcome to the land of z :))
I did not try run level 1. What I did try was
Sam,
That disk might still be attached to the other guest and you did not
detach
them, so when you ipled your guest the system's disk was mounted read
only?
No, I had them R/W. Thanks for the append though...
Mike MacIsaac mikemac at-sign us.ibm.com
Hi,
I'll follow up with more info on the can't login/SE Linux issue later.
I reinstalled RHEL 6.2, this time dasdfmt'ing the two disks from a root
shell before using the install shell. I turned off SE Linux by setting
SELINUX=permissive in /etc/selinux/config, and ran through the same steps
Does SLES 11 SP2 have a subversion RPM?
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It's on the SDK.
Which one? I see three:
-rw-r- 1 root suse 2094888960 Feb 16 2012
SLE-11-SP2-SDK-DVD-s390
x-GM-DVD1.iso
-rw-r- 1 root suse 4726601728 Feb 16 2012
SLE-11-SP2-SDK-DVD-s390
x-GM-DVD2.iso
-rw-r- 1 root suse 2224711680 Feb 16 2012
Dominic,
it was on the first DVD.
Thanks - I'll stop after the first DVD download...
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Hello list,
Florian wrote about a .1 second sleep time - what a concept! I've never
thought to sleep for less than a second.
David wrote:
... Inserting a wait of a few (variable between 1 and 30 seconds,
depending on load) seconds reduces, but does not eliminate, the
failures. Introducing a
Sebastian,
So I still think it is sufficient to do:
chccwdev -e xxx ;udevadm settle ;dasdfmt xxx
... which is somewhat the conclusion I came to with the previous test
script. So everyone wanting to script with chccwdev -e could write a
function such as:
function enableDevice { chccwdev -e
Mark,
I can easily reproduce the problem on my SLES11 SP2 system with this
script:
...
Nice test case! I modified it a bit :)) I never got the chccwdev to fail.
I did see the mkswap fail regularly. Then I randomly added a udevadm
settle after the chccwdev -e. Every time the udevadm settle
Hello lists,
I am pleased to announce a relatively minor update to the z/VM and Linux
on IBM System z: The Virtualization Cookbook for z/VM 6.2 RHEL 6.2 and
SLES 11 SP2
The new new sections and changes are:
-) Virtualization Cookbook is back in the title (Cloud Computing is
gone)
-) New section
Aria,
I ran into this writing the last cookbook. I found this e-mail when
someone in Boeb. debugged it:
I tried to compare the messages from the two scenarios (with and without
SWPAGEN). This is what I found.
With SWAPGEN the amount of swap space detected by Linux is as follows:
Adding
Mark,
For a linux to work with LGR it must IPL from a device or NSS
so no CMS if I want to LGR.
The Cloud Computing Cookbook,
http://www.vm.ibm.com/devpages/mikemac/CKB-VM62.PDF shows how to IPL CMS,
create VDISKs, IPL Linux and still do LGRs. The CMS disks are simply
detached when Linux
This sounds like SLES 11. If so, just a guess, did you run
qeth_configure?
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VM just isn't as fun as it once was.
Perhaps, but Linux more than makes up for that :))
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Are there two entries in /etc/fstab?
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Peter,
This definitely looks like an issue:
swapon: /dev/dasdd1: read swap header failed: Invalid argument
swapon: /dev/dasdc1: read swap header failed: Invalid argument
What happens if you try a mkswap on one (or both) of these - can you then
swapon -a them?
Mike MacIsaac mike...@us.ibm.com
Mark,
Have you tried making it something slightly different than an even 1GB?
Say, 1030M?
No I did not.
However, it was almost certainly an issue with an FCP LUN. The first one
I was given access to would not return an associated WWPN. I believe that
confused the SLES installer in a couple of
So I did not use the FCP devices at install time. After install, I added
three LUNs, set up multipathing, set up an LVM and edited /etc/fstab so it
is mounted over /opt.
I did a chkconfig multipathd on and rebooted. The LV did not mount. It
seems multipathd ran *after* /etc/fstab was read. After
Bruce,
If SUSE, did you also enable boot.multipath?
Yes SuSE, No I did not enable. Yes, that fixed it. Thanks!
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Hi,
I'm trying to install SLES 11 SP1. I IPL the starter system, it finds
it's disks and network and the NFS install server. It tries to start the
VNC server, but then dies:
starting VNC server...
A log file will be written to: /var/log/YaST2/vncserver.log ...
***
*** You can connect
Neale,
How big is your virtual machine?
1G.
(I didn't mean to get personal.)
lol
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More info on this ... It is looking like some flaky FCP disks:
0) Before the error I reported, I had gotten further: I laid out the file
systems(including 4 FCP LUNs LVM'd together) and the RPMs installed. When
the system tried to reboot from disk it died with hundreds of unknown
uuids for the
Martha,
On Thursday, 3/8 at 11am, we will be hosting a customer panel session at
SHARE
Do you mean 3/15? Isn't SHARE next week?
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...
The default in /opt/IBM is not a great option.
Per the FHS, I believe it should have been (should be) /var/opt/IBM/.
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What was BOGOMIPS ever used for?
Recurrent discussions about their uselessness? :))
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Cameron,
I am making progress, but am stuck on this. Any suggestions?
Do you have a Virtualization Cookbook? It has step-by-step recipes
for many tasks including installing RHEL.
There is one for RHEL 5.2 (I don't think the install changed much in RHEL
5.7) on
The number is completely useless on s390x
Still, I'd rather be working on a box with 3000 bogomips than 1000 :))
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Klaus Johansen wrote:
Unfortunately we have experienced that our guests using this feature
suddenly become unresponsive for NEW ssh logins:
The ssh-login just hangs
I did see that with SLES 11 SP2 RC1. In the current cookbook, in
section 20.8, we have:
Important: This section was completed
Hello lists,
confession type=humbling
There is a bug in the SSISHUTD EXEC that is part of the new Cloud
Computing Cookbook.
/confession
bummer type=major
I just shut down an SSI cluster by accident.
/bummer
One of the new EXECs in the tar file of code associated with the book is
SSISHUTD to
Florian,
I wonder if there is already a release date known.
About the middle of last year, I saw plans that z/VM 6.2, RHEL 6.2 and
SLES 11 SP2 were all targeted to GA around the end of 2011. I said that I
*have to* update the Cookbook because the planets are in alignment.
Well the planets
Hello lists,
There is an updated Virtualization Cookbook, rebranded to z/VM and Linux
on IBM System z: The Cloud Computing Cookbook for z/VM 6.2, RHEL 6.2 and
SLES 11 SP2 (so as to be buzzword compliant:)), weighing in at 400 pages.
This is not an official IBM (not a Redbook this time), nor
FYI - IPLing CMS and using SWAPGEN on a common 191 disk is all documented
in the Virtualization Cookbooks:
z/VM and Linux on IBM System z: The Virtualization Cookbook for SLES 11
SP1, SG24-7931, on the Web at see
http://www.redbooks.ibm.com/abstracts/sg247932.html
z/VM and Linux on IBM System z:
Mark,
I have uploaded almost all of the presentations given at the VM Workshop
...
Excellent! Thanks.
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Jeff,
I certainly had no intention of disparaging wrappers as-such
Nope, did not take it that way.
I do, however, like to make sure that folk know when they're
using a wrapper rather than the primary component ...
Yup, agreed.
Mike MacIsaac mike...@us.ibm.com (845) 433-7061
Cameron,
Does anyone have a clearer description of how to use the CPFORMAT exec
for
formatting DASD?
As Scott points out, there is a help screen and a section in the
Virtualization Cookbooks. Basically it's:
== CPFORMAT rdev range AS PAGE|PERM|SPOL|TDSK
CPFORMAT is not standard with z/VM -
Karl,
Did you activate the DASD when you were installing?
Yes - selected, activated and formatted...
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Rogerio,
did you attach dasd to the guest ?
They are minidisks. There was no error message when logging onto the
virtual machine. Thanks.
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Hello list,
Thanks for all the suggestions. I've tried scrubbing, I've tried soaking,
but I still get ... (no, sorry, just kidding)
I've tried CMS formatting, I've tried VNC, I've tried SSH with two shells,
but I still get:
Error │
│ No hard disks
Hello list,
I got SLES 11 SP1 installed, using a workaround. I cheated and defined an
identical ID on a different CEC (z10) with the same volumes and minidisk
cylinder ranges. The install went fine, so the problem was not the DASD.
There seems to a combination of a different CEC (z114), a
Hello list,
I just ran into a weird one. I was installing SLES 11 SP1, DEF STORed
it to 1G, clicked Configure DASD, selected, activated and formatted the
two R/W disks, then kept moving along. I got the error Error: No hard
disks or controllers were found for the installation. Check your
Hello list,
We are pleased to announce a new paper Sharing and Maintaining SLES 11
SP1 Linux under z/VM using FBA disks DCSSs and an NSS. It is on the Web
at the top of the page: http://www.vm.ibm.com/linux/dcss/
It describes how to set up read-only-root systems on FBA/SCSI disks with
SLES 11
Did you try setting the g+ws bit on the directory and set umask to 002?
Here's an example:
# cd /
# mkdir samba
# chmod g+ws samba
# chgrp users samba
# vi /etc/profile
... // set umask to 002
# grep umask /etc/profile
# The global umask value is stored in /etc/login.defs and
# will be set by
I'm asking this question on the behalf of a customer:
I have this set up fine as far as VM is concerned, and have eth0 and eth1
defined on Linux (RHEL 5.5).
My problem is that the networks defined by eth0 and eth1 have different
gateway addresses, but when both interfaces are brought up, the
Craig,
We've altered the script to identify the FBA devices,
format them with 'mkfs' and then use the 'dd' to perform
the block copy. When we try to boot the cloned copy
Just some thoughts - after you dd them, but before you try to IPL, are you
able to mount the new targets as file systems?
modprobe vmcp
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Hello lists,
We are pleased to announce the IBM Redbook z/VM and Linux on IBM System
z: The Virtualization Cookbook for Red Hat Enterprise Linux 6.0 is
*finally* published (lawyer+lawyer=slow:)) at
http://www.redbooks.ibm.com/abstracts/sg247932.html
Thanks goes out to Sue Baloga, Bill Bitner,
Is this vsftpd? If so, do you have local_enable set to YES in the
/etc/vsftpd.conf file?
# Uncomment this to allow local users to log in.
#
local_enable=YES
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Hi,
The z/VM and Linux on IBM System z: The Virtualization Cookbook for SLES
11 SP1 is now an official IBM Redbook.
See http://www.redbooks.ibm.com/abstracts/sg247931.html?Open
Any feedback is welcome. Enjoy.
Mike MacIsaac mike...@us.ibm.com (845) 433-7061
Sergey,
I changed parmfile for my system, but i use FTP as an install source:
INSTALL=ftp://ibmsys3:xxx@10.1.1.1/image/
Just curious, why did you choose FTP over NFS?
I see the error:
*** Could not find the SUSE Linux Enterprise Server 11 Repository.
So the installer can't find the RPMs.
Ideas?
I vaguely remember seeing a 4010 return code and vaguely associate it with
trying to make a physical volume (PV) out of a disk with a PV signature
already on it. That's probably why you ran into this the second time, but
not the first.
Did you reformat the disks at the DASD Management
Dave,
I followed parts of the Virtualization Cookbook for SLES 11 SP1 when I
installed the System (LPAR, no z/VM, so I skipped those).
Now I need to add additional DASD to the LVM group.
But all I can get is the Ncurses version of YaST, and I can't figure out
how to get to the Expert
Dave,
You can do a ls /dev/system_vg to see what logical volumes are there.
I would guess that this will work:
# lvextend -l +586 /dev/system_vg/home--vg
Mike MacIsaac mike...@us.ibm.com (845) 433-7061
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For LINUX-390
Hi,
Does RHEL have the fping and tree RPMs (or commands from another package)
on s390x? I don't see them in the Packages/ directory of the install DVD
1, but perhaps they are available elsewhere. Thanks.
Mike MacIsaac mike...@us.ibm.com (845) 433-7061
Ruddy,
Where do I get instructions on doing this??
In the book: z/VM and Linux on IBM System z: The Virtualization Cookbook
for SLES 11 SP1, Nov 2010 - describes z/VM 6.1 and Novell/SuSE SLES 11 SP1
- http://www.vm.ibm.com/devpages/mikemac/SG247931.pdf
There is also an associated tar file with
But we are unable to get the TCPIP running.
What are the error messages related to TCP/IP as Linux boots? Is the
virtual machine being attached to a VSWITCH? If so, are you sure there is
no error message regarding the VSWITCH when you log on to the virtual
machine?
Mike MacIsaac
Srinivas,
Just have to move the LPARS and images.
Did you move this Linux from an LPAR to running under z/VM? If so, then
you'd probably need to assign the same OSA triplet to the virtual machine
(perhaps through three DEDICATE statements in the user directory entry for
the Linux virtual
From a 3270 console, after RHEL boots, what is the output of these
commands:
# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# service network restart
Mike MacIsaac mike...@us.ibm.com (845) 433-7061
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