Bug 623811 - anaconda should use liblvm and libcryptsetup to get data area starts
Summary: anaconda should use liblvm and libcryptsetup to get data area starts
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: anaconda
Version: 6.0
Hardware: All
OS: Linux
Target Milestone: rc
: ---
Assignee: Chris Lumens
QA Contact: Release Test Team
Depends On: 623808 651069
Blocks: 647893 705163 756082 761078
TreeView+ depends on / blocked
Reported: 2010-08-12 20:38 UTC by Mike Snitzer
Modified: 2011-12-23 17:16 UTC (History)
6 users (show)

Clone Of:
Last Closed: 2011-11-30 16:55:23 UTC

Attachments (Terms of Use)

Description Mike Snitzer 2010-08-12 20:38:40 UTC
Description of problem:
Anaconda should use liblvm and libcryptsetup to determine the data area start location for any volumes it will create.

liblvm must provide access to what a particular PV's pe_start will be (bug 623808).

libcryptsetup must provide access to what a particular LUKS device's 'Payload offset' will be.

Additional info:
improving anaconda in this manner will enable more comprehensive "I/O topology awareness" at install time.

Comment 1 Chris Lumens 2010-08-12 20:58:21 UTC
Do you have a pointer to documentation for using those libraries?

Comment 3 David Cantrell 2011-05-26 18:49:25 UTC
anaconda changes are blocked by upstream acceptance of the as-yet-to-be-completed work described in bug #623808.  Once those are done, we can work on changing anaconda.

Comment 6 David Cantrell 2011-08-10 14:14:13 UTC
Since bug #623808 is currently in ON_QA for 6.2 and the devel freeze is 4 business days away, I'm moving this bug to 6.3.

Comment 7 David Lehman 2011-08-10 16:16:50 UTC
Anaconda is a python application. Until/unless liblvm provides python bindings this is a non-starter.

Comment 9 David Cantrell 2011-11-30 16:49:36 UTC
Based on comment #7 and where things stand right now with liblvm, I really don't see this happening in the 6.3 timeframe.  Rather than carry this forward forever, I'm going to set devel_ack-.

Comment 10 RHEL Product and Program Management 2011-11-30 16:55:23 UTC
Development Management has reviewed and declined this request.  You may appeal
this decision by reopening this request.

Comment 11 Mike Snitzer 2011-11-30 19:01:23 UTC
Fair enough... but be aware that dropping this may lead to misaligned root volumes in the future.

liblvm and libcryptsetup were thought to be a means to an end for fixing the general issue of making anaconda "I/O topology aware".  That they have been deemed inadequate doesn't change the fact that anaconda is lacking said awareness.

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