Archives of linuxvm.org
07/01/2002 - Neale Ferguson posted the URL to an article
that showcases two of the successes Linux/390 has had, while at the same time quoting
Meta group on how there's not much demand for the platform.
07/01/2002 - Mark Post reported an InfoWorld story
about IBM introducing "Linux Virtual Services," a Linux/390 based computing
on demand offering.
07/02/2002 - Mark Post reported an InfoWorld story
about a security vulnerability in the DNS resolver library. Many packages besides DNS
use this library, making the exposure even bigger than it sounds.
on demand offering.
07/02/2002 - In response to a question about how to
migrate file and directory permissions from Windows® NT to Samba, David Boyes commented
"The SLIST command (on the NT Resource Kit) will display the permissions
applied to files and directories; I pipe that into a file and then process
that with a Perl script on the Linux side. Another method I've seen is to
enable NetWare Services and then use the NetWare to NT conversion tool
included with NT to extract that info (it produces a nifty report that you
can parse with REXX or Perl)."
07/02/2002 - Colman Fink contributed a link to a
story about "How three companies are making the most of Linux in their
mainframe environments." The companies featured are Boscov's Department Stores,
Winnebago Industries, and L. L. Bean.
07/03/2002 - Jay Maynard of the Hercules project announced that version 2.16.3 is now available. What's new in release 2.16.3:
07/03/2002 - Michael Coffin contributed a REXX exec
to "build the network. This has saved my bacon many, many times and is very
helpful in reconfiguring the network." You need to have access to Regina (or
another REXX interpreter) to run it, and you need to run SuSEConfig when finished.
07/03/2002 - Dave Myers reported that the problems
he had been having with Rob van der Heij's program to write a Linux/390 kernel,
parmfile, and ramdisk to DASD using ICKDSF was because the INITRD file was in
07/03/2002 - Aurora Emanuela Dell'Anno of Candle
announced that OMEGAMON for VM V600 was now generally available.
07/03/2002 - paultz [email@example.com] posted the
URL to an Enterprise Systems Journal article that claimed that "...the No.
1 skill that IT managers at large enterprises say they'll be looking for:
Mainframe management, especially involving Linux on the mainframe".
07/04/2002 - Neale Ferguson posted the URL to
a LinuxWorld (Australia) article about IBM signing a four year contract with
"Centrelink to provide mainframe capacity and associated software and
services and to establish a world-class Linux laboratory."
07/05/2002 - Gerhard Hiller of IBM reported the following update to the DeveloperWorks web site:
07/08/2002 - Jay Maynard of the Hercules project announced that version 2.16.5 is now available. What's new in release 2.16.5:
07/08/2002 - Daniel Jarboe reported that Ready to
Run Software had announced the availability of FrontPage 2002 Server Extensions
for Apache running on Linux/390. There is also a version for Apache running on
OS/390 2.7, or z/OS 1.2. The packages are downloadable at no cost. Unfortunately,
it turns out that the package replaces the httpd binary, and the version of Apache
that it is based on (1.3.19), is vulnerable to the "chunk-encoded HTTP request"
security exposure that was recently announced and fixed.
07/09/2002 - Salvador Torres discovered that there
is a port of FreeBSD to S/390 in progress. A posting on Slashdot alerted him to it.
Apparently it's a one-person effort, so far.
07/10/2002 - Dave Jones reported an article on Yahoo's that talked about IBM releasing version 4.1 of their LDAP directory server software. The software is available for a number of platforms, including Linux, Linux/390, and Windows®, and is free for download. Free registration is required. Each download is very large, and IBM did not publish md5sums for the various packages. Mark Post downloaded six of them twice each, to verify that the md5sums matched. The values for the ones he downloaded are:
b37326175235db78253e5fbb2f7445af ibmdir410-S390linux-us.iso fc673e04e888e9266ed7e8ea4ce9f258 ibmdir410-S390linux-us.tar d443d75a4577a6d17ef49c8e51f50085 ibmdir410-linux-us.iso 584b272ab745c97ba6944309f5ad728f ibmdir410-linux-us.tar a35fce6866a96053d686ffee6416e1ce ibmdir410-windows-us.iso 755fc65f262ad9b145e9a2c2b61876af ibmdir410-windows-us.ziphttp://biz.yahoo.com/iw/020710/044336.html
07/11/2002 - In response to a question about the
existence of Open Source video conferencing software for Linux/390, Mark Earnest
replied that Gnomemeeting is H.323 compliant and compatible with NetMeeting. Alan
Cox commented that video conferencing is very CPU intensive, but since the S/390
would most likely only be acting as a bridge between the conferencing systems,
said that Openh323 would be another choice. David Boyes echoed Alan's comment about
CPU utilization, and added that "...efficient hosting of multimedia requires
efficient use of IP multicast to reduce network flooding. Most of the IBM
supported network interfaces do not handle multicast well at all."
07/11/2002 - paultz [firstname.lastname@example.org] posted the
URL to an interview with Marcelo Tosatti, who has taken on responsibility for the
maintenance of the Linux 2.4 stable kernel.
07/12/2002 - Douglas DeMers of UTS Global announced
the "...immediate availability of NED, a 3270-based full screen text editor
product for Linux on the mainframe. NED is designed to run on a 3270 terminal or
3270 emulator (e.g. x3270). With NED, mainframe Linux users can edit files with
the ease and efficiency enjoyed by OS/390 systems with XEDIT or ISPF Edit. NED
can also function as a pager especially suited to 3270 terminals."
07/12/2002 - Lionel Dyck forwarded a message from
the VMESA-L mailing list that Dave Jones had posted. Dave had been responding to
a question on good book covering VM concepts and facilities. The URL points to
the full text (in 6 PDF files) of "The Operating Systems Handbook" by
Bob DuCharme. The book gives a high-level overview of UNIX, VMS, OS/400, VM/CMS,
07/12/2002 - Tuomo Stauffer contributed a link to
an Open Magazine article about IBM marketing Linux clusters to the petroleum
industry, and the success the companies are having with them.
07/13/2002 - During a discussion about getting
diagnostic information from a "crashed" Linux/390 system running under
VM, Mark Post recommended using the Linux/390 standalone dump utility, but noted
that it is only available for 2.4 systems. Romney White offered an alternative
that is built into VM, and hence will work for all guests, regardless of the
07/15/2002 - Lionel Dyck reported "You can
download a 2 month free trial of WAS for zSeries Linux, and more from" the
WebSphere Developer Domain.
07/16/2002 - Phil Payne reported an article which
discusses Microsoft CEO Steve Ballmer's admission that Linux really is cheaper than
07/16/2002 - There was a report that "Linux data"
on an IBM RVA (Ramac Virtual Array) was not being compressed. After a fair amount of
discussion, it seems that the observed symptoms were due to residual data on the RVA.
That is, a file gets deleted, but the RVA works on track images, and so doesn't know that.
Binaries are not very compressible, so it appears that compression is not working. If
the files are overwritten with compressible data (such as all zeros) before being deleted
(or in the process of being deleted), the RVA unit will compress it, and free up space
for other uses.
07/18/2002 - Neale Ferguson posted links to three
articles, "Wall Street's Secret Affair With Linux," "How a CTO
Faced His Worst Nightmare," and "Russian Government Quiet About its
Move Toward Linux."
07/18/2002 - Colman Fink posted a link to an
article that talks about the impending "mainframe skills shortage."
The first three paragraphs seem particularly clueless, but don't let that put
07/18/2002 - Stefan Gybas gave another pointer
to the parsecfg program for someone who was looking to install the patch against
2.4.17 for zipl. He also commented "You can download it from any of the 250
Debian mirrors in the directory /debian/pool/main/s/s390-tools/. The current
s390-tools version in Debian is 0.0.20020226".
07/19/2002 - Florian La Roche posted a URL saying
that it "has nice information on more recent glibc-2.3 and gcc-3.1 changes
going on wrt performance tuning. Also Jakub Jelinek has implemented S/390 support
for prelinking some time ago."
07/19/2002 - Jim Sibley donated a writeup on his
findings of compression on IBM RVA devices with Linux/390.
07/19/2002 - Matt Zimmerman of the Debian Project
announced the general availability of Debian GNU/Linux version 3.0 (woody). He
went on to comment "This latest release of Debian is available for a total
of 11 hardware architectures, including, for the first time, IBM S/390.
07/20/2002 - Terrence W. Zellers posted the URL of
an article by Meta Group on Linux/390. Terrence commented that the main thrust of
the article was "that applications is the big problem." The article had
Meta's usual anti-Linux/390 bias to it. Mark Post commented "Until Meta group
can figure out that Linux/390 has nothing to do with z/OS (or OS/390 or
whatever they think runs on mainframes), I find it impossible to take seriously
anything else they have to say on the topic."
07/22/2002 - Neale Ferguson reported a new IBM
Redbook, "S/390 Partners in Development: EFS Systems on a Linux Base,"
SG24-6834. The abstract states
07/22/2002 - Don Mulvey reported that Enterprise
Volume Management System (EVMS) version 1.0.1 will allow formatting and partitioning
of S/390 DASD from the EVMS user interface. He mentioned that the latest release
of Debian only included version 1.0.0, which did not have this feature, and said
that the source was available from Sourceforge. Stefan Gybas of the Debian project
replied that another way to update the package would be to
07/22/2002 - Mark Post reported a security alert
for PHP 4.2.0 and 4.2.1. The vulnerability could allow an attacker to execute
arbitrary code on the web server with the privileges of the web server daemon.
The recommendation was to install version 4.2.2, which contains a fix.
07/22/2002 - In response to some requests for
more information about Debian GNU/Linux 3.0 for S/390, Stefan Gybas listed
the following high points.
07/22/2002 - Mark Post forwarded the URL to a series of articles on Linux on the Forbes web site. He said the articles are pretty short, but the fact that Forbes has a total of 13 Linux articles on their site seems significant in and of itself.
07/22/2002 - Mark Kliner reported a Washington
System Center flash, #10144, that talks about the limits on sharing an OSA-Express
card running in QDIO mode. He was interested in knowing if the limit was on
the number of IP addresses, which would affect multi-homed TCP/IP stacks, or
the number of unique TCP/IP stacks. The answer was not the number of IP
address, simply the number of unique TCP/IP stacks.
07/22/2002 - In response to a question about when
Debian Linux/390 .iso images would be available, Mark Post responded that they
could be found now, and provided a URL. Jason Strnad commented that Matt
Zimmerman's 50MB "starter" disk image was a nice way to try out
Debian under Hercules. He also gave a pointer to the Debian installation
instructions which he described as "excellent."
07/23/2002 - Phil Payne reported a German
language article about another Sun to Linux/390 consolidation. This one
is being done by the T-Com subsidiary of Deutche Telekom. 25 Sun Solaris
boxes are being replaced by an IBM zSeries.
07/24/2002 - In response to a comment about
EVMS 1.0.1 (Enterprise Volume Management System) not being included in the
recent Debian 3.0 release, Matt Zimmerman stated "Fortunately, there
is no need to download and build EVMS 1.0.1 from sources, as EVMS 1.0.1
packages are available from Debian unstable. These packages are just as
well tested as the 1.0.0 packages, and will work perfectly on a Debian
3.0 system. They are available for all Debian architectures, including
07/26/2002 - Gerhard Hiller of IBM reported the following update to the DeveloperWorks web site:
07/26/2002 - Peter Webb contributed the URL to an
article that starts off with "IBM and Linux combined represent a threat
and inspiration as Microsoft Corp drives into enterprise computing, top company
executives said yesterday." The rest of the article was mostly just a
review of what those MS executives say that MS will be doing over the next
year or two.
07/26/2002 - During a rather convoluted thread
about the original IBM personal computers and the operating systems that were
considered for it before DOS was selected, which branched off into
comments about CP/M and the UCSD P-system, David Boyes commented "There
is a pSystem emulator written in Pascal available..." "Running that
through p2c produces a working p-Machine emulator, after hacking some minor
filename parsing stuff. The resulting emulator will boot and run the UCSD OS
images I have (I bypassed loading BOOT.CODE and BOOT.IMG, which are the
system-specific parts)." Jim Melin responded "As long as you're
building a new version.... port it to S/390 :)"
07/29/2002 - Adam Thornton reported a problem
with the latest (June 17, 2002) version of the IBM OCO qdio module when using
a Debian 3.0 kernel. The qeth module required that CONFIG_NET_FASTROUTE be
configured, which caused netfilter to be bypassed. Stefan Gybas replied that
the qeth and qdio modules from February 18, 2002,
qeth-2.4.17-s390-1.tar.gz work fine, and so would be the
recommended versions of these modules for Debian 3.0.
07/29/2002 - Carsten Otte of IBM reported a
problem: "With our latest 2.4.7 patches there is a problem with CMS
reserved minidisk: As soon as you start to do I/O to a CMS reserved
minidisk on a system with VM pseudo page fault support, the application
doing the I/O hangs forever. The following patch applies on top of the
developerworks patches and fixes the problem. Note, that the problem is
already fixed on 2.4.17, this is a retrofit of the corresponding patch!"
07/29/2002 - Daniel Jarboe reported a problem
trying to install util-linux-2.11f-17.7.2.s390.rpm that
he had rebuilt from source. RPM complained about a conflict between
/sbin/fdisk in that package and the one from
s390utils-20011109-6. In response to Daniel's question
about the correct way to handle this, Karsten Hopp replied:
%ifnarch s390 s390x /sbin/fdisk %endifhttp://www.marist.edu/htbin/wlvtype?LINUX-VM.29157
07/29/2002 - In response to a question about
where the .config file for the Debian kernel was stored,
Stefan Gybas replied "It's in /boot/config-2.4.17
if you install the kernel-image-2.4.17-s390 package.
This package is not installed by default since the kernel and the modules are
taken from the installer.
07/30/2002 - Richard Hitt of UTS Global
reported that UTS Global had figured out what was causing a problem with
3270 console and terminal support on SuSE 7.2 systems. He posted the
URL to the replacement packages for the shadow and
sysvinit packages. Source RPMs for both packages
are available in the same directory if you prefer those. The
memo.html file on the server gives all the details
on what causes the problem, and checksums for the various files, etc.
Richard also provided the URL to UTS Global's "new 3270 FAQ for
hints on how to start using 3270 devices on any 2.4 Linux distribution."
07/31/2002 - Gerhard Hiller of IBM reported the following update to the DeveloperWorks web site:
07/31/2002 - Mark Post sent a note to the list
that he had discovered that there was some corruption in Neale Ferguson's
"quiesce" patches that are available on the patches page. Neale
provided updated versions for the patches, so anyone who might have downloaded
them previously should get a new copy to make sure they're correct. Mark
also commented that there is no 2.4.7 version for the s390x architecture (64-bit).
07/31/2002 - In response to a problem someone
was having with Apache not starting, Mark Post told them that installing
mm-1.1.3-35.s390.rpm would correct the problem. Stefan
Gybas responded by reminding everyone that "This version has a temporary
file vulnerability which can be exploited to gain root access. You should not
install this version on a public web server since this race could be used in
conjunction with a remote exploit for Apache (e.g. based on OpenSSL or PHP4)."