--- Begin Message ---
Package: linux-kernel-di-s390-2.6
Version: 0.46
Severity: wishlist
I am requesting that three additional kernel modules be added to the
s390 version of the Debian Installer: vmcp, dasd_fba_mod, and dasd_diag_mod.
I am assuming that vmcp belongs in core-modules-* and the other two belong
in dasd-modules-*; but it is up to you how you want to package it.
When used as a pure installer to install on CKD DASD, these modules are
not needed. However, when used in a "rescue-like" mode to perform system
maintenance, such as copying data to CMS-format disks, these modules
are very useful.
When running in a virtual machine under z/VM, vmcp allows the root user
to issue commands to the CP component of z/VM, the hypervisor which
manages the configuration of the virtual machine that Linux is running in.
For example, the LINK or DETACH commands can be issued to dynamically
add disks to or remove disks from the environment. vmcp is not essential.
The alternative is to issue CP commands via "#CP" on the 3215 virtual console.
But vmcp is a great convenience as it allows CP commands to be issued from,
for example, a remote SSH client session.
dasd_fba_mod is essential to support FBA DASD. The only disk format
supported by the Linux kernel for use on FBA DASD is the CMS disk format,
and parted doesn't support the CMS disk format. Therefore, the installer
cannot install to FBA DASD. But data can be copied to FBA DASD after
installation to CKD DASD. However, when attempting to use the installer
in a rescue-like mode for this purpose, FBA DASD cannot be used, since there
is no dasd_fba_mod kernel module.
dasd_diag_mod is necessary when using the DIAG driver, which can be used
with either CKD DASD or FBA DASD. With CKD DASD, support for the DIAG
driver can be enabled after the fact. But according to "Device Drivers,
Features, and Commands, Development Stream (Kernel 2.6.32)", SC33-8411-04,
Chapter 3, DASD Device Driver, under the heading "Enabling DIAG calls
to access DASDs", the DIAG driver must be in use from the
beginning when it is used with FBA DASD. I quote:
Note: When switching between enabled and disabled DIAG calls on FBA-type
DASD, first re-initialize the DASD, for example, with CMS format or by
overwriting any previous content. Switching without initialization might
cause data-integrity problems.
If the goal is to use the DIAG driver to access data on an FBA DASD, then
the DIAG driver must be used from the beginning when making a file system
or swap space. Thus, when used in a rescue-like mode to perform this type of
system maintenance, kernel module dasd_diag_mod must be available.
I run the "generic" version of the installer, IPLed from the virtual
card reader in a virtual machine under z/VM by running the "DEBIAN EXEC"
script under the CMS operating system.
The way I use the installer to do this type of maintenance is to run the
installer in expert mode (debconf/priority=low), run all the steps of
the installation up through and including the display of the existing
partitions on the existing DASD, exit this menu without making any
partition changes or assigning mount points, (<Go Back>) and drop into
a shell. At that point, modprobe commands on vmcp, dasd_fba_mod, and
dasd_diag_mod all fail.
I do not run in true rescue mode (i.e. the rescue/enable=true
boot parameter is not set) because I do not want the installer to
attempt to mount my normal root partition as "/". I want to copy that
partition and chroot to the copy later. Once I am finished with my
maintenance activities, I type "exit" to return to the installer menu,
then I select "Abort the installation" to shut down.
An example procedure for copying data to CMS-format disks
can be found at http://www.wowway.com/~zlinuxman/diag250.htm. The
specific example here uses a separate server, but the procedure can be
adapted to use the installer in a "rescue-like" mode, provided these
three kernel modules are available. At present, they are not.
--- End Message ---
--- Begin Message ---
Source: linux-kernel-di-s390-2.6
Source-Version: 0.47
We believe that the bug you reported is fixed in the latest version of
linux-kernel-di-s390-2.6, which is due to be installed in the Debian FTP archive:
core-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/core-modules-2.6.32-3-s390x-di_0.47_s390.udeb
crypto-dm-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/crypto-dm-modules-2.6.32-3-s390x-di_0.47_s390.udeb
crypto-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/crypto-modules-2.6.32-3-s390x-di_0.47_s390.udeb
dasd-extra-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/dasd-extra-modules-2.6.32-3-s390x-di_0.47_s390.udeb
dasd-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/dasd-modules-2.6.32-3-s390x-di_0.47_s390.udeb
ext2-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/ext2-modules-2.6.32-3-s390x-di_0.47_s390.udeb
ext3-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/ext3-modules-2.6.32-3-s390x-di_0.47_s390.udeb
ext4-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/ext4-modules-2.6.32-3-s390x-di_0.47_s390.udeb
fat-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/fat-modules-2.6.32-3-s390x-di_0.47_s390.udeb
kernel-image-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/kernel-image-2.6.32-3-s390x-di_0.47_s390.udeb
kernel-image-2.6.32-3-s390x-tape-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/kernel-image-2.6.32-3-s390x-tape-di_0.47_s390.udeb
linux-kernel-di-s390-2.6_0.47.dsc
to main/l/linux-kernel-di-s390-2.6/linux-kernel-di-s390-2.6_0.47.dsc
linux-kernel-di-s390-2.6_0.47.tar.gz
to main/l/linux-kernel-di-s390-2.6/linux-kernel-di-s390-2.6_0.47.tar.gz
md-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/md-modules-2.6.32-3-s390x-di_0.47_s390.udeb
multipath-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/multipath-modules-2.6.32-3-s390x-di_0.47_s390.udeb
nic-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/nic-modules-2.6.32-3-s390x-di_0.47_s390.udeb
scsi-core-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/scsi-core-modules-2.6.32-3-s390x-di_0.47_s390.udeb
scsi-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/scsi-modules-2.6.32-3-s390x-di_0.47_s390.udeb
xfs-modules-2.6.32-3-s390x-di_0.47_s390.udeb
to main/l/linux-kernel-di-s390-2.6/xfs-modules-2.6.32-3-s390x-di_0.47_s390.udeb
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 569589@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Otavio Salvador <otavio@debian.org> (supplier of updated linux-kernel-di-s390-2.6 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Sat, 27 Feb 2010 15:44:37 -0300
Source: linux-kernel-di-s390-2.6
Binary: kernel-image-2.6.32-3-s390x-di nic-modules-2.6.32-3-s390x-di scsi-core-modules-2.6.32-3-s390x-di scsi-modules-2.6.32-3-s390x-di ext2-modules-2.6.32-3-s390x-di ext3-modules-2.6.32-3-s390x-di ext4-modules-2.6.32-3-s390x-di xfs-modules-2.6.32-3-s390x-di fat-modules-2.6.32-3-s390x-di md-modules-2.6.32-3-s390x-di multipath-modules-2.6.32-3-s390x-di core-modules-2.6.32-3-s390x-di crypto-modules-2.6.32-3-s390x-di crypto-dm-modules-2.6.32-3-s390x-di dasd-modules-2.6.32-3-s390x-di dasd-extra-modules-2.6.32-3-s390x-di kernel-image-2.6.32-3-s390x-tape-di
Architecture: s390 source
Version: 0.47
Distribution: unstable
Urgency: low
Maintainer: Debian Install System Team <debian-boot@lists.debian.org>
Changed-By: Otavio Salvador <otavio@debian.org>
Closes: 569589
Description:
core-modules-2.6.32-3-s390x-di - Core modules (udeb)
crypto-dm-modules-2.6.32-3-s390x-di - devicemapper crypto module (udeb)
crypto-modules-2.6.32-3-s390x-di - crypto modules (udeb)
dasd-extra-modules-2.6.32-3-s390x-di - optional dasd DIAG support (udeb)
dasd-modules-2.6.32-3-s390x-di - dasd modules (udeb)
ext2-modules-2.6.32-3-s390x-di - EXT2 filesystem support (udeb)
ext3-modules-2.6.32-3-s390x-di - EXT3 filesystem support (udeb)
ext4-modules-2.6.32-3-s390x-di - EXT4 filesystem support (udeb)
fat-modules-2.6.32-3-s390x-di - FAT filesystem support (udeb)
kernel-image-2.6.32-3-s390x-di - Linux kernel binary image for the Debian installer (udeb)
kernel-image-2.6.32-3-s390x-tape-di - Linux kernel binary image for the Debian installer (udeb)
md-modules-2.6.32-3-s390x-di - RAID and LVM support (udeb)
multipath-modules-2.6.32-3-s390x-di - Multipath support (udeb)
nic-modules-2.6.32-3-s390x-di - Common NIC drivers (udeb)
scsi-core-modules-2.6.32-3-s390x-di - Core SCSI subsystem (udeb)
scsi-modules-2.6.32-3-s390x-di - SCSI drivers (udeb)
xfs-modules-2.6.32-3-s390x-di - XFS filesystem support (udeb)
Changes:
linux-kernel-di-s390-2.6 (0.47) unstable; urgency=low
.
[ Frans Pop ]
* nic-modules: drop obsolete module ctc (was replaced by ctcm).
* Add vmcp to core-modules as it can be useful to be able to issue commands
to the z/VM Control Program from a debug shell.
* Add an optional udeb dasd-extra-modules containing dasd_diag_mod. Although
not supported by the installer, it can be useful to have available for
rescue situations. Closes: #569589.
.
[ Otavio Salvador ]
* Built against version 2.6.32-9 of linux-2.6.
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