Bug 1113156

Summary:	Empty fstab breaks libguestfs inspection
Product:	[Community] Virtualization Tools	Reporter:	Richard W.M. Jones <rjones>
Component:	libguestfs	Assignee:	Richard W.M. Jones <rjones>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	acathrow, mbooth, ptoscano
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2014-07-07 12:00:48 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Richard W.M. Jones 2014-06-25 14:09:54 UTC

Description of problem:

Systemd allows an empty /etc/fstab, if every mountpoint uses a
systemd unit (see bug 1113153).  I believe (though I haven't tested
it) that if there is only a root filesystem, then /etc/fstab can
also be empty and at least systemd won't mind, although I imagine
lots of other software wouldn't be too happy.

If /etc/fstab exists but is empty then you get:

libguestfs: could not parse /etc/fstab or empty file

We should not fail in this case.

Version-Release number of selected component (if applicable):

libguestfs 1.27.19

Additional info:

https://bugzilla.redhat.com/show_bug.cgi?id=1113153
https://bugs.launchpad.net/nova/+bug/1221985

Comment 1 Pino Toscano 2014-07-07 12:00:48 UTC

Fixed with
https://github.com/libguestfs/libguestfs/commit/3fc6983b1666a32ea6c1b44d88f140e3c84e7201
which is libguestfs >= 1.27.21.