Bug 1194193

Summary:	[RFE] Add squashfs support to rd.writable.fsimg
Product:	Red Hat Enterprise Linux 7	Reporter:	Fabian Deutsch <fdeutsch>
Component:	dracut	Assignee:	dracut-maint
Status:	CLOSED ERRATA	QA Contact:	Release Test Team <release-test-team-automation>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.2	CC:	dracut-maint-list, fdeutsch, harald, mbanas, ovasik, rvykydal
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-11-19 12:52:35 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Fabian Deutsch 2015-02-19 10:11:43 UTC

To boot live images without a disk (diskless boot, in this sense also stateless), rd.live.fsimg can be used.
Currently that directive takes a compressed archive containing a filesystem image.
But often squashfs images containing the rootfs image are provided.

This feature request is about enabling rd.live.fsimg to use squashfs images as well, this allows us to reuse the squashfs image which is already used by anaconda for installation.

Comment 1 Fabian Deutsch 2015-02-19 10:12:15 UTC

This feature got implemented with
https://github.com/haraldh/dracut/commit/b0472eac111268e2cae783097d0eccc1986e1762

Comment 4 Fabian Deutsch 2015-09-15 12:47:40 UTC

This feature can be tested by:

1. Get the squashfs.img from a livecd to some http server
2. Somehow boot with a kernel and a dracut image containing this fix
2. Modify boot param to use the following boot arguments:
root=live:http://path/to/squashfs.img rd.live.fsimg=1
3. After boot check that /run/initramfs/fsimg/ exists

Comment 6 Harald Hoyer 2015-09-23 14:24:32 UTC


(In reply to Fabian Deutsch from comment #4)
> This feature can be tested by:
> 
> 1. Get the squashfs.img from a livecd to some http server
> 2. Somehow boot with a kernel and a dracut image containing this fix
> 2. Modify boot param to use the following boot arguments:
> root=live:http://path/to/squashfs.img rd.live.fsimg=1
> 3. After boot check that /run/initramfs/fsimg/ exists

well, there is no rd.live.fsimg in dracut code. maybe in anaconda?

The directory is only created, if "rd.writable.fsimg" is specified on the kernel cmdline.

Comment 7 Fabian Deutsch 2015-09-24 12:15:11 UTC

Indeed. My memory was bad.

it should be as in comment 4, but using rd.writable.fsimg instead of rd.live.fsimg

Comment 9 errata-xmlrpc 2015-11-19 12:52:35 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2091.html