On 7/2/2012 at 03:16 PM, Ben Duncan wrote:
>> When rebooting, it hangs on:
>> Waiting for Mandatory device etho __NSC__ anc counts down from 30.
On Mon, Jul 2, 2012 at 3:43 PM, Mark Post wrote:
> How do you know this if you don't have access to the z/VM console of the
> guest?
Mark, sin
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You want the cms-fuse driver which is in s390-utils. The original includes
the "cmsfs utils" but is not R/W.
Also, beware of an acronym collision where "cms" can mean "content
management system". That's obviously not what you want.
On Aug 30, 2012 5:18 AM, "Michael MacIsaac" wrote:
> Hi list,
>
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> So the "lvcreate" succeeds, but the resulting /dev/mapper entry is not
> there. At the next reboot it is there. I threw in a "udevadm settle", but
> same results.
Mike --
I'm not following all of it, but the better way to access a logical
volume is via
/dev/VG/LV
... or in this case
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Barcelona
On Thu, Nov 8, 2012 at 4:49 PM, Neale Ferguson wrote:
> At #KVM Forum? Don't miss: "KVM on IBM System z: Channel I/O And How To
> Virtualize It" by #IBM - Nov 9 at 10:30am. Anyone have details?
>
> --
> For LINUX-390 s
It's always a judgement call.
I tend to take config back even further: if the package has only one config
file then let it stand on its own as /etc/thatthing.conf. But many packages
have stuff split into multiple files, so /etc/thatthing directory like you
suggested. But then some pkgs are sophist
friends --
I posted the same question on the z/VM discussion list (to which some
here are also subscribed). What do you like about z/VM compared to
VMware or VirtualBox or other PC virtualization methods?
This is NOT flame bait. I am presenting at the local Linux user group
this week, tag teami
On Tue, Nov 27, 2012 at 11:44 AM, Peter Webb, Toronto Transit
Commission wrote:
> The last time I looked, CentOS for s390 was really old: 4.4 I think,
> where Intel is now at 6.3. I believe there was only one maintainer, and
> he appears to have moved on to other things. For installation, follow
>
On Wed, Nov 28, 2012 at 4:09 PM, Patrick Spinler
wrote:
...
> Several of the things I've seen mention of as specific Z advantages in
> this thread, though, are just as easily doable on other platforms.
Right. And what Rodger said about that.
Some points come from the HW architecture. Some com
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At this point, you can replicate from VDISK to ECKD. 'rsync' makes this
relatively easy. There are a few things to look out for and some fix-up
once copied.
On Dec 11, 2012 11:44 AM, "Tom Huegel" wrote:
> Success !! Sort of.
> I tried many many different things i.e. using different DASD 3390 mo
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Not to worry. Adding more swap space is easy.
On Thu, Dec 20, 2012 at 12:30 PM, Victor Echavarry Diaz
wrote:
> Is there a way to expand the swapgen vdisk swap without reboot the server or
> define a new vdisk using swapgen without ipl?
Expand it? No.
But the norm (for Linux on any HW) is to a
I'm glad someone verbalized this! God bless Ken Starks and his "Friend".
> http://linuxlock.blogspot.com/2013/01/happy-sitting-at-kids-table.html
It's a "tragedy of the commons".
Linux is just the most well known FOSS project.
Any and all of them are subject to branding and other hijacks.
But A
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>> GPT is s conspiracy of the partition police and the UEFI underworld.
>
> A little paranoia is good for the soul ... :-)
I'm paranoid, but am I paranoid enough? :-)
>> Partition tables are needed ... sometimes ... not always. (One case
>> where they are needed is when GRUB and UEFI gang
> Where might I be able to locate compat-32bit-2009.1.19-2.1 for SLES 11
> SP? (s390x)? I had it here at one time, but now I can't find it anymore.
Dave --
I've always found the compat libs on the regular installation media.
Spin up the DVD maybe?
If you installed from a repository (that you
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This is a multi-part message in MIME format.
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
On 01/28/2013 09:57 AM, Rick Troth wrote:
Wow ... that didn't work either!
How about
At least the text below is viewable via TBird.
If this gets through, details follow.
On 01/28/2013 10:31 AM, Rick Troth wrote:
> This is a multi-part message in MIME format.
> Content-Type: text/plain; charset=ISO-8859-1
> Content-Transfer-Encoding: quoted-printable
>
> On 01/2
> What I'd like to be able to do is eliminate the need to write out
> "file.to.transfer" and just somehow pipe it into the "tee" command
> directly. I just don't see a way to do it.
'curl' can probably do what you want.
That and 'wget' are standard equipment in Linux, common on Unix.
'curl' has al
Find a local LUG.
One reason this forum works so well is that, though we are many, it's
not the whole planet. Linux on INTeL has such a huge user base that
you'll be hard pressed to find any single forum quite like this one.
But your local Linux User Group will likely have an email list or FB
or
> [root@localhost ~]# systemctl start nfs.service
> [root@localhost ~]# mkdir /tmp/iso
> [root@localhost ~]# mount -o ro,vers=3,nolock localhost:/dev/sr0 /tmp/iso
> mount.nfs: access denied by server while mounting localhost:/dev/sr0
> [root@localhost ~]#
Just for clarity, this part is on he lapto
Looks like part of the problem is that both ends call themselves "localhost".
DO NOT use "localhost" for the NFS mount (unless you really want to
NFS mount something served back to the same box, clearly not this
case).
...
> [root@localhost ~]# mount -o ro,vers=3,nolock /dev/sr0 /tmp/iso
> [roo
>> ... replacing "192.168.55.44" with the address of the laptop.
>
> [root@localhost ~]# mount -v 10.250.24.67:/tmp/iso /tmp/testit
> mount.nfs: timeout set for Thu Mar 7 10:34:01 2013
> mount.nfs: trying text-based options
> 'vers=4,addr=10.250.24.67,clientaddr=10.250.24.67'
> < ... >
> ^C
> [r
Hang in there, John. This will eventually work.
> Here's what I get on the SLES install program on z/VM:
>
> / # mount 10.250.24.67:/tmp/iso /tmp/testit
> / # ls -l /tmp/testit
> drwxr-xr-x2 00 40 Mar 7 16:45 .
> drwxrwxrwt3 00 60 Mar 7 16:45 ..
Lots of tips/tricks here. If you already know, please excuse me.
> Tried issuing 'export DISPLAY=myhostname:0.0' and 'echo $DISPLAY' to see
> it took
> But when I issue YaST2 get the message below:
> Cannot open display
Be sure that "myhostname" is running an X server. (Is it your PC? Do
you h
> Here's another new wrinkle:
> Previously, from the SLES install system on z/VM
> it "appeared" that the mount command worked.
> I just tried it again with the -v flag, and got this:
>
> /tmp/testit # mount -v 10.250.24.67:/tmp/iso /tmp/testit
> mount: invalid number of arguments
Command looks go
> myhostname is a vmware session running Windows XP
Sounds good. Should be fine.
> Only have PuTTY for access
PuTTY can do the X tunneling.
(X tunneling is a special case of tunneling via SSH, supported by most
SSH clients, including PuTTY.)
> No longer allowed to use Hummingbird Exceed Xwind
;
> Only have PuTTY for access
>
> No longer allowed to use Hummingbird Exceed Xwindows
>
> -Original Message-
> From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of
> Rick Troth
> Sent: Thursday, March 07, 2013 2:57 PM
> To: LINUX-390@VM.MARIST.ED
...
> ch2ldsladmin:/etc # command-not-found exportfs
> ch2ldsladmin:/etc #
>
> Well, that's real helpful.
Dunno why 'command-not-found' failed to give a clue, since that is its
purpose in life. (But then, I don't use that particular helper ... so
no idea what would make it work (or not).)
I fin
On Wed, Mar 13, 2013 at 4:04 PM, Mark Post wrote:
...
> I think the best method is to CPFMTXA at _least_ cylinder 0
> before giving it to a guest. It really should be the entire volume,
> or use the DIRMAINT function to erase things for you.
I mostly agree with Mark: clip the disk, so to sp
>>>> On 3/14/2013 at 11:25 AM, Rick Troth wrote:
>> THE ONLY time Linux actually *needs* CDL is when the disk will be
>> shared with MVS.
On Thu, Mar 14, 2013 at 1:26 PM, Mark Post wrote:
> Perhaps in a z/VM environment, but that's not completely true eve
> And, like it or not, LDL has a "funky special first track" too.
That is not correct.
> Root file system on an LV is anathema to me and the other people
> that have been burned by it.
My experience with root FS in LV is recent. Love it!
My embracing of LVM (before root) happened slo
Email is better than "social media" except for one thing: a "like" button.
I have other questions. (see below)
On Wed, Mar 20, 2013 at 10:41 AM, Alan Altmark wrote:
...
> What everyone discovered was that:
> (a) New releases of the Java have a tendency to break existing
> applications that liv
On Wed, Mar 20, 2013 at 1:02 PM, Ben Duncan wrote:
> *SNARK* .. Gave up Java for Python. AT LEAST If it is not on zL I
> can grab source and
> install ... but then again I been doing Linux and that kind of stuff
> since 1993 ...
Grab source and install ... works just as well on zL as not on z
On Fri, Mar 22, 2013 at 5:23 PM, R P Herrold wrote:
...
>
> I am thinking that the
> /etc/profile
> method is your best bet if it is re-sourcing the log-in
> environment or something wierd in the application's
> 'installer'
Also hoping that the installer does not set ignorant values for
On Fri, Mar 29, 2013 at 2:27 PM, Philipp Kern wrote:
...
> it's much easier to write snippets for than sysvinit. It does proper
> supervision that restarts services when they go down. So where's the problem?
It may simply be learning curve.
But that is a real effect, so some push-back should be
Congrats, Lee!
So ... less travel, eh? That's great! I hear that Visa is everywhere
you want to be.
--
-- R; <><
--
For LINUX-390 subscribe / signoff / archive access instructions,
send email to lists...@vm.marist.edu with
/etc/fstab?
On Thu, May 16, 2013 at 10:59 AM, Neale Ferguson wrote:
> I used system-config-lvm to remove a lv “vg_rh62gfs/vg_swap”. It appeared to
> go ok and after zipling I rebooted only to get:
>
> dracut: Scanning devices dasda1 dasdb1 dasdc1 for LVM logical volumes
> vg_rh62gfs/lv_root vg
The differences you're seeing ... some are lag-time as changes get
rolled into the kernel and utilities, but others may be variances from
a standard. (or lag-time in keeping up with the standard)
Standard ... is there? Why ... yes, there is!
"The Linux Standard Base was created
to lower
It's "zipl.conf" that you want.
The 'zipl' command will read that config file, build a parm line and
other static data, and stamp the IPL text onto the boot disk.
Unlike some other bootstraps (eg: GRUB), here you need to re-stamp the
IPL text when changing the parms. (That used to be the norm for
>> Or maybe a compiled smiucv should also be on the Downloads page?
...
> I'll talk to Leland about shipping a prebuilt one, though
> -- no need to force a toolchain install if not needed.
CORRECT.
And for "external facing" or "cloud" guests, it's important to NOT
have the toolchain available.
Yeah ... 'logger' is pretty handy. Is available on other systems too.
Following what David said, you will want the SYSLOG service up and
running for 'logger' to have any effect. (According to design, the
logged traffic would drop into oblivion if 'syslogd' is not running,
so as to avoid lock-up
<><><><><>
> Seems like it should be the default
> I mean, except in very very specific cases,
> should the virtual machine EVER care about the hardware details?
Yeah ... David makes an excellent point.
Seems like a virtualization violation, in the pure sense.
Have always found it odd that guests can "se
<><><><><>
Time out. Back up to the 10 kilometer altitude and consider what
you're trying to do. FTP might not be the right tool. (Ubiquitous,
yes. But ... something about hammers and nails should go here.)
Sounds like the credentials fight is your big pain point. The
credentials requirement is a big tu
On 09/05/2013 12:44 PM, Bauer, Bobby (NIH/CIT) [E] wrote:
> I've spent a nice part of the day trying to figure out how to pad a variable
> with leading zeroes and still keep the decimal. The variable needs to be
> formatted n.nn. Printf with a %d clobbers the decimal. Any suggestions
> not u
On 09/05/2013 12:44 PM, Bauer, Bobby (NIH/CIT) [E] wrote:
> I've spent a nice part of the day trying to figure out how to pad a variable
> with leading zeroes and still keep the decimal. The variable needs to be
> formatted n.nn. Printf with a %d clobbers the decimal. Any suggestions
> not u
On 09/20/2013 03:52 PM, Chase, John wrote:
> The error we can't get past is "425 Failed to establish connection."
And this error comes from ... WinFTP? Do you get no other interaction
with the server?
You rebooted. WSFTPD runs "stand alone", so there will be a process.
Do you see it?
ps -e
Did the server restart after your config change?
I don't use FTP much these days, so I forget if vsFTPD runs
stand-alone or via the [x]inetd super server.
If stand-alone, then check if it came up after the config change. In
any case, check your log files.
On Fri, Sep 20, 2013 at 2:09 PM, Chas
On 09/23/2013 08:35 AM, Chase, John wrote:
> Sep 19 14:27:34 [hostname] kernel: type=1400 audit(1379618854.132:20188):
> avc: denied { search } for pid=29232 comm="vsftpd" name="home" dev=dasda1
> ino=8198 scontext=unconfined_u:system_r:ftpd_t:s0-s0:c0.c1023
> tcontext=system_u:object_r:home_
On 09/23/2013 09:28 AM, and in another thread, Alan Altmark wrote:
> They are indeed SELinux errors, but "clearly" is hardly applicable in this
> case. If you haven't studied SELinux (hint!), you aren't going to
> recognize these messages. (And nowhere does the message even say
> "SELinux" to pro
On 09/23/2013 09:57 AM, Chase, John wrote:
> We changed it to "permissive" in the SELinux config file and rebooted. Same
> error "425 Failed to establish connection" continues. Remote colleague
> hasn't logged in yet today, but I've asked which FTP client he's using
> (WinFTP or Bluezone).
FY
On 09/23/2013 11:21 AM, Chase, John wrote:
> Remote colleague has logged in; said he "just typed ftp" in the command
> prompt window on Win 7. I suggested he try our Bluezone ftp client or upload
> the .tar file to z/OS and try the z/OS ftp client.
Command-line client. Good!
Then maybe he can
On 09/23/2013 04:01 PM, Alan Altmark wrote:
>> > It would be "real nice" to see an equivalent of RACF's ICH408I messages
> here.
>
> Sure, but that ship has sailed.
>
> Message headers is one the golden legacies of the past that Linux failed
> to exploit. Though it turns out that message headers a
On 10/02/2013 12:37 PM, Chase, John wrote:
> We're having "fun" with installing a vendor's web server into a RHEL 6.3
> guest on z/VM 6.2. Vendor's support person talked us through setting the
> SELinux configuration to "disabled" and rebooting Linux, but it still comes
> up with SELinux showin
On 10/02/2013 01:00 PM, Hodge, Robert L wrote:
> Do you really want to handicap the security on your Linux server by disabling
> SELinux? I use the audit2allow command as outlined at
> http://www.linuxforums.org/articles/accomodating-avc-denied-messages-selinux_355.html
> to create and load need
What's *running* in the guests?
In a prior life, I was in the VM and Linux team supporting apps mostly WAS
based. We saw a lot of "mysterious" loads. While IBM has made improvements
in WAS, the apps are always in need of review.
The most common (and extreme) example is apps which poll. Not so muc
On 02/12/2014 04:29 AM, Heiko Carstens wrote:
> we plan to remove 31 bit kernel support of the s390 architecture in the
> Linux kernel sources.
Thanks for alerting us.
[raises hand] Yes, I use it daily.
> The reason for this is quite simple: the current 31 bit kernel was broken
> for nearly a y
On 02/13/2014 03:39 AM, Heiko Carstens wrote:
>>> > > After the removal of the 31 bit kernel support it is not possible to run
>>> > > new Linux kernels on old 31 bit only machines. The only supported 31
>>> > > bit
>>> > > only machines were the G6 and Multiprise 3000 introduced in 1999.
>>> >
On 02/14/2014 06:04 AM, Heiko Carstens wrote:
>... As far as I know there is no plain 31 bit distribution left.
NORD ships a 31-bit kernel. (for varying values of "ships")
The latest version (per the "getslack" web page) of Slackware ships
31-bit and 64-bit kernels.
-- R; <><
On 02/17/2014 04:22 AM, Heiko Carstens wrote:
>> > NORD ships a 31-bit kernel. (for varying values of "ships")
> I never heard of NORD, do you have a link?
I'll dig one up.
>> > The latest version (per the "getslack" web page) of Slackware ships
>> > 31-bit and 64-bit kernels.
> "Last updated: Mo
On 02/19/2014 10:43 AM, Mrohs, Ray (JMD) wrote:
> I.e., the VM guy is Santa. The Linux guys are the elves. My daughter came up
> with that when she tried to understand what I do at work.
I like it!
-- R; <><
--
For LINUX-390 su
On 03/03/2014 06:18 PM, Marcy Cortes wrote:
> Why does dasdfmt take so long?
Marcy --
Several options are available to you now, most immediate being to _take
the "low level" formatting out of Linux_. You can ...
* 'dasdfmt' a reference disk and then DDR that to all new disks, and
'fdasd -a
friends --
A couple weeks ago, someone asked about the CMS FS utility*. They were
needing it for some cloning work.
The latest is 1.1.10 and is at the usual place ...
http://www.casita.net/pub/cmsfs/cmsfs-1.1.10.tar.gz
It is also in Git space ...
https://github.com/trothr/cmsfs
Enjo
<><><><><>
HELLO
> NEALE[WNG]HELLO
So what you're saying is you re-wrote STARMSG with prettier output. (eg:
"[WNG]" instead of "0002") Very nice.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain Vie
On 03/24/2014 12:25 PM, Jake anderson wrote:
> tcp6 nowait root /u/users/bfagent bfagent
"tcp6"?
Is it trying to listen on IPv6 only? But then ...
> Ý131513¨ bfdaemon: Ý::/5557¨: bind: EDC5111I Permission denied.
> Ý131513¨ bfdaemon: Ý0.0.0.0/5557¨: bind: EDC5111I Permission denied.
> Ý131513¨ b
Linux are linked against
OpenSSL. Specific releases of OpenSSL exhibit the leaky behavior in the
heartbeat function. Check with your distributors and other software
vendors and/or support organization to know if you are at risk.
Velocity zSSL is not based on OpenSSL.
--
Rick Troth
Senio
tp://en.wikipedia.org/wiki/Ext4
-and-
* http://en.wikipedia.org/wiki/Ext2
* http://en.wikipedia.org/wiki/Logical_Volume_Manager_%28Linux%29
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 594-9768
ri...@velo
nly deals with the kernel's view, but that's
probably your only serious worry. CP DETACH should clean up any residual
state left in the virtual NIC.
I hope this helps.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct
en I'd suspect the
zoning and masking of this LUN. Check with your storage team. Is the LUN
wired to hit a different guest? (different FCP adapter(s))
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Mai
PIV. But with NPIV, you can share a LUN much like you can share DASD on
FICON.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 594-9768
ri...@velocitysoftware.com <mailto:ri...@velocitysoftware.com>
-
ou need that function.)
Intermediate and client certificates are stored as individual files. In
my experience, the single file is easier for a massive root store.
Separate files make more sense when automating.
--
Rick Troth
Senior Software Developer
Ve
ed for data at rest (like a certificate) or data in flight
(LDAP, VoIP, even Kerberos). DER is based on ASN.1.
The command 'openssl asn1parse' will break apart a certificate so you
can see its structure. It takes either PEM or DER input (but specify
which).
I hope this helps.
--
---
script so you don't ever forget to do it.
Agreed: individual files are the way to go for general certificate
management.
I like the bundles for loading a known batch of trusted certs.
> It's a little more work to set up certificate distribution that way the first
> time, but it&#
published MD5 value where you
downloaded it.
--
----
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 594-9768
ri...@velocitysoftware.c
wn in the
days when MIME was first introduced. (I wanted them to ignore linear
white space in some comparisons. CMS to date does not support truly
empty records in minidisk or SFS files. Makes email quirky to process.
What a pain.) But MD5 is binary.
--
Rick Troth
Senior Software Developer
Veloci
akes email quirky to process.
What a pain.) But MD5 is binary.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 594-9768
ri...@velocitysoftware.com
t
be difficult once the layout is identified.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 594-9768
ri...@velocitysoftware.com <mailto:ri...@velocitysoftware.com>
--
to /dev/null. If there's an actual error, the
latter command will fail and will clue the user that something's wrong.
Think about it.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 594-9768
ri...@velocitys
MCP is not statically linked
In the first two cases, a 'vmcp' command will then succeed. (Assuming
device inode is present, which is likely.) Good.
In the latter case, 'vmcp' will fail, so there's an indication that
something is in fact wrong.
On-demand loading is better than
t there's no CMS EDF filesystem, because
that's not compatible with MVS). Linux then uses that pre-blocked
storage the same way CMS does.
If physical init is not required (and CKD has been emulated for 20 years
already) then 'DDR' is typically sufficient to get the entir
;dasdfmt' nor 'fdasd'.)
The reserved file then becomes the "partition" Linux sees, which makes
for a convenient backup access point.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 5
d the z/VM side. It conveys Linux metrics via SNMP into the
common monitor stream on the z/VM host, and correlates the hypervisor's
view of guest performance.
Check out the suite of tools at ...
http://www.velocitysoftware.com/product.html
--
Rick Troth
Senior Software Developer
Ve
ead, get ready for multiples.
What Alan said: a "pool" of just one sets you up for growth.
--
Rick Troth
Senior Software Developer
Velocity Software Inc.
Mountain View, CA 94041
Main: (877) 964-8867
Direct: (614) 59
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