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Bug 533490 - [LTC 6.0 FEAT] 201085:cio_ignore - carry param to zipl.conf
Summary: [LTC 6.0 FEAT] 201085:cio_ignore - carry param to zipl.conf
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: anaconda
Version: 6.0
Hardware: s390x
OS: All
high
high
Target Milestone: beta
: 6.0
Assignee: Anaconda Maintenance Team
QA Contact: Release Test Team
URL:
Whiteboard:
Depends On: 463544
Blocks: 554559
TreeView+ depends on / blocked
 
Reported: 2009-11-06 21:20 UTC by Denise Dumas
Modified: 2010-07-02 20:41 UTC (History)
10 users (show)

Fixed In Version: anaconda-12.38.4-1
Doc Type: Enhancement
Doc Text:
Clone Of: 463544
Environment:
Last Closed: 2010-07-02 20:41:52 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Comment 1 Denise Dumas 2009-11-06 21:21:43 UTC 
This BZ tracks the first part of Comment 9 in the earlier BZ, the zipl.conf change.


> Here is what I presented last Fr. on eSDT meeting:
> A Linux on System z system will in most cases see a lot more devices than it
> should be using (up to a current theoretical maximum of 262144 devices, in
> practice, 1000-4000 devices are common) Using the cio_ignore kernel parameter
> and /proc interface, this feature should mask the ccw devices which are not
> used and unmask them if they are needed. Note: When unmasking should be
> waited/verified that dev. is there (via sysfs) with a timeout (in case device
> does not exist).
> More details about cio_ignore under:
> − Latest version of Device Drivers, Features, and Commands at:
> http://www.ibm.com/developerworks/linux/linux390/development_documentation.html
> 
> This should be done during the installation and HW setup tools (like
> system-config-network) and persistent for each boot.
> 
> What is needed for this feature:
> - Patch anaconda to:
>    By default mask all the devices except the console (0009) in generic.prm
> (default parmfile for installation)and propagate this kernel parameter to the
> zipl.conf (for boot)

This bug is about the first part of this requirement.  Carrying the parameter
over to zipl.conf is a separate bug and should be filed as such.
Comment 2 David Cantrell 2009-11-07 00:32:01 UTC 
This is present in commit e1048cc671708ed79b5fcbafc70ceeea01b8a70a.
Comment 4 releng-rhel@redhat.com 2009-11-10 22:39:17 UTC 
Fixed in 'anaconda-12.38.4-1'. 'anaconda-12.38.4-1.el6' included in compose 'RHEL6.0-20091110.0'.
Moving to ON_QA.
Comment 5 Jan Stodola 2009-11-18 11:19:44 UTC 
Verified with RHEL6.0-20091111.0 and anaconda-12.38.4-1.el6.

Manual installation with parm file:
root=/dev/ram0 ro ip=off ramdisk_size=40000 cio_ignore=all,!0.0.0009
CMSDASD=191 CMSCONFFILE=e40.conf foipv6 lang=en_US 

zipl.conf after installation:
[defaultboot]
default=linux
target=/boot/
[linux]
        image=/boot/vmlinuz-2.6.31-35.el6.s390x
        ramdisk=/boot/initramfs-2.6.31-35.el6.s390x.img
        parameters="root=/dev/mapper/vg_strongbad-LogVol01 cio_ignore=all,!0.0.0009 rd_DASD=0.0.3126 rd_DASD=0.0.3226 LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=us"

Moving to VERIFIED
Comment 10 releng-rhel@redhat.com 2010-07-02 20:41:52 UTC 
Red Hat Enterprise Linux Beta 2 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.
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