Bug 1009596

Summary:	[kickstart] Cannot use process substitution even if interpreter set to bash
Product:	Red Hat Enterprise Linux 6	Reporter:	Jan Pokorný [poki] <jpokorny>
Component:	anaconda	Assignee:	Anaconda Maintenance Team <anaconda-maint-list>
Status:	CLOSED DUPLICATE	QA Contact:	Release Test Team <release-test-team-automation>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	6.5
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2013-09-18 18:38:49 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Jan Pokorný [poki] 2013-09-18 16:40:20 UTC

Cannot get kickstart file containing process substitution in %post
to work correctly.  Explicitly setting interpreter (--interpreter)
to /bin/bash won't help.

Either I am missing something or this is a bug.

Comment 3 Jan Pokorný [poki] 2013-09-18 18:11:02 UTC

Found /tmp/ks-script-wauWIy (standalone %post section) and the respective
/tmp/ks-script-wauWIy.log states:

> cat: /dev/fd/63: No such file or directory
> cat: /dev/fd/62: No such file or directory
> tail: write error: Broken pipe

(where tail is one of the two commands used for process substitutions)

Looks like the chroot environment is not built properly incl. /dev
hierarchy (if possible, indeed, not a chroot expert), effectively
preventing process substitution?  If it's a known limitation, it doesn't
seem to be properly documented.  Definitely more desired would be to
prevent any such artificial and unobvious limitations
(process substitution is a standard feature of bash).

Comment 4 Jan Pokorný [poki] 2013-09-18 18:38:49 UTC

Oh, [bug 814850].

*** This bug has been marked as a duplicate of bug 814850 ***