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Bug 444534

Summary:	RFE: teach dump/restore about ext4 for RHEL5
Product:	Red Hat Enterprise Linux 5	Reporter:	Eric Sandeen <esandeen>
Component:	dump	Assignee:	Adam Tkac <atkac>
Status:	CLOSED DEFERRED	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	5.3	CC:	aaron.s.hawley, dejohnso, ovasik, rvokal, shiva, syeghiay, ToddAndMargo, vincent
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-09-02 12:40:05 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	444533
Bug Blocks:	447797, 662543

Description Eric Sandeen 2008-04-28 22:14:22 UTC

We're starting to get some testing of ext4 on RHEL5, and we may get it to a tech
preview status by RHEL5.3 - to support this, a few system utilities could use
updates for ext4.

dump/restore won't open an ext4 filesystem.  Need to investigate what all it'll
take to properly support ext4 in dump/restore.

[root@inode ~]# dump -f /mnt/foo/mydump /mnt/test
  DUMP: Date of this level  dump: Mon Apr 28 17:11:13 2008
  DUMP: Dumping /dev/sda8 (/mnt/test) to /mnt/foo/mydump
  DUMP: Unsupported feature(s) 0x40 in filesystem
/dev/sda8: Filesystem has unsupported feature(s) while opening filesystem
  DUMP: The ENTIRE dump is aborted.

I haven't yet looked at dump to see how much fs-knowledge it needs for the
traversal etc.

Thanks,
-Eric

Comment 1 Adam Tkac 2008-05-22 09:07:07 UTC

This is big problem. Dump needs detailed FS knowledge, it operates directly with
inodes. I recommend follow standard scenario - Fedora->(upstream)->RHEL. I'm
affraid I cannot make it to 5.3. Btw ext3 support in dump is still marked as
experimental and upstream doesn't have time for such development.

Comment 2 RHEL Program Management 2008-07-21 23:03:11 UTC

This request was evaluated by Red Hat Product Management for
inclusion, but this component is not scheduled to be updated in
the current Red Hat Enterprise Linux release. If you would like
this request to be reviewed for the next minor release, ask your
support representative to set the next rhel-x.y flag to "?".

Comment 7 Adam Tkac 2009-06-22 13:11:47 UTC

*** Bug 504537 has been marked as a duplicate of this bug. ***

Comment 10 Aaron S. Hawley 2009-06-24 17:37:44 UTC

Support for ext4 was submitted in this message to the devel list.

http://sourceforge.net/mailarchive/message.php?msg_name=23730083.post%40talk.nabble.com

A new release happened last Thursday (2008-06-18), here's the announcement.

http://sourceforge.net/mailarchive/message.php?msg_name=20090622175922.GB5862%40galileo

Comment 11 Kenneth Porter 2009-06-24 23:01:24 UTC

A big update, 0.4b42, was released this week that includes ext4 support. Please test it and let upstream know. Here's the release announcement:

http://permalink.gmane.org/gmane.comp.archivers.dump.announce/6

Comment 12 Kenneth Porter 2009-06-24 23:15:02 UTC

I see that the new release has hit Rawhide:

http://download.fedora.redhat.com/pub/fedora/linux/development/source/SRPMS/dump-0.4-0.1.b42.fc12.src.rpm

Comment 15 Adam Tkac 2009-09-02 12:40:05 UTC

After discussion ext4 support won't be available in RHEL5.

Ext4 support requires improved e2fsprogs-libs with ext4 support. From e2fsprogs-libs maintainer perspective it will be so difficult and invasive to extend the library thus dump with ext4 will be available in RHEL6.

Comment 16 Adam Tkac 2011-09-14 10:51:24 UTC

*** Bug 733318 has been marked as a duplicate of this bug. ***