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Bug 623811 - anaconda should use liblvm and libcryptsetup to get data area starts
anaconda should use liblvm and libcryptsetup to get data area starts
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: anaconda (Show other bugs)
All Linux
medium Severity medium
: rc
: ---
Assigned To: Chris Lumens
Release Test Team
Depends On: 623808 651069
Blocks: 647893 705163 756082 761078
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Reported: 2010-08-12 16:38 EDT by Mike Snitzer
Modified: 2011-12-23 12:16 EST (History)
6 users (show)

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Doc Type: Bug Fix
Doc Text:
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Last Closed: 2011-11-30 11:55:23 EST
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RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Mike Snitzer 2010-08-12 16:38:40 EDT
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 16:58:21 EDT
Do you have a pointer to documentation for using those libraries?
Comment 3 David Cantrell 2011-05-26 14:49:25 EDT
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 10:14:13 EDT
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 12:16:50 EDT
Anaconda is a python application. Until/unless liblvm provides python bindings this is a non-starter.
Comment 9 David Cantrell 2011-11-30 11:49:36 EST
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 11:55:23 EST
Development Management has reviewed and declined this request.  You may appeal
this decision by reopening this request.
Comment 11 Mike Snitzer 2011-11-30 14:01:23 EST
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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