EXT4 Default in Fedora10?

[Demz]

as i just read on Distrowatch the WN In the meantime, the development of Fedora 10 continues with testing of the various features that will eventually appear in the distribution. One of them is support for ext4, a new journaling file system that is a successor to the widely-used ext3. Last week, Eric Sandeen issued a call for testing (https://www.redhat.com/archives/fedora-test-list/2008-September/msg00031.html) "Just my semi-annual plea for some ext4 testing in the Fedora beta cycle. With the e2fsprogs 1.41.0 release in Fedora 10, we now have an ext4-capable e2fsprogs, with working fsck, debugfs, etc as well as mkfs.ext4 and mkfs.ext4dev to enable the new disk format features by default. For Fedora 10, the barrier to entry has been lowered by 14 characters - now all you have to type on the boot prompt is "ext4" and when you go to the custom partitioning screen, you'll get the option to create ext4 file systems at install time. I'd appreciate any and all testing, benchmarking and feedback that people would be willing to do. Just getting more exposure in real-life scenarios would be great."

does this mean EXT4 will be the default for F10?

[zecchinhg]

no, i guees ext4 will be an option during the installation process. type ext4 during boot and, as the text explains, ext4 will be available during partiotioning/formatting steps.

[RahulSundaram]

as i just read on Distrowatch the WN

does this mean EXT4 will be the default for F10?

That really does depend on the upstream development (Eric Sandeen is one of the Ext4 developers) and the feedback from the Fedora development cycle. If you try it with current rawhide or one of the test releases and send in your feedback to fedora-test list, that would be useful.

[Demz]

That really does depend on the upstream development (Eric Sandeen is one of the Ext4 developers) and the feedback from the Fedora development cycle. If you try it with current rawhide or one of the test releases and send in your feedback to fedora-test list, that would be useful.
i will be trying the Beta when it comes out so i will give it a go then :)

[forkbomb]

Sweet. Can't wait to try it. I was going to ask what the status of Reiser4 is, but apparently it's not ready for mainline kernel support

[scottro]

I should really try it out--running out of time and extra disk space. I don't remember it being available when I last installed F10--ahhhhhhh--I used a liveCD, that's why.

Has anyone tried it? Any noticeable differences?

[DennyCrane]

I thought ext4 was one of the features of F9?

[DennyCrane]

Yup:
http://fedoraproject.org/wiki/Features/Ext4

I think the quote above is just referring to the disk tools.

[stevea]

Ehhh - grub can't boot an ext4, so I suppose that dictates a separate /boot again (yuk). Still th performance looks so much better.

Has anyone here tracke the bugs in ext4 ? Is it ready for prime-time or still experimental ?


Sweet. Can't wait to try it. I was going to ask what the status of Reiser4 is, but apparently it's not ready for mainline kernel support
May never be from what I read. Don't count on reiserfs5 either !

[RahulSundaram]

I thought ext4 was one of the features of F9?

It was a experimental feature which you have to pass a option in the Anaconda boot prompt to actually enable. There is still work that needs to be done to make it stable and enabled by default or perhaps even the default.

[Demz]

Ehhh - grub can't boot an ext4, so I suppose that dictates a separate /boot again (yuk). Still th performance looks so much better.

Has anyone here tracke the bugs in ext4 ? Is it ready for prime-time or still experimental ?



May never be from what I read. Don't count on reiserfs5 either !
have you tried to compile grub-1.96 with EXT4?

[DennyCrane]

It was a experimental feature which you have to pass a option in the Anaconda boot prompt to actually enable. There is still work that needs to be done to make it stable and enabled by default or perhaps even the default.

..It sounds like it will be exactly the same in F10...

type on the boot prompt is "ext4" and when you go to the custom partitioning screen, you'll get the option to create ext4 file systems at install time.

[RahulSundaram]

Hi,

The command is different already. Besides we still have time between the beta release and the general release. Like I said earlier in this thread, it depends on the upstream development and feedback.

[LordMorgul]

Has anyone here tracke the bugs in ext4 ? Is it ready for prime-time or still experimental ?
There have been some bugs but I've used it myself all through the F9 devel cycle and had no issues at all, using ext4 on several machines. In my opinion, its quite ready for prime-time, but the main show stopper was the lack of good fs tools, which is getting fixed up quickly. I'm not a filesystem developer, but I've seen nothing to say its really any more dangerous/risky to use than any other filesystem is.

[SlowJet]

To convert an ext3 to ext4dev

tunefs -O extents -E test_fs /dev/DEV

mount /dev/dex -t ext4dev /mnt/mntpoint

This worked for an F10 alpha and still works updated.

On beta install default ext3
these changes work perfectly in liveCD with installed /dev/mapper/VolGroup00-LogVol00.
It can be mounted with dev4 and uses extents

But upon reboot the system uses a
/dev/root on /mnt/sysroot and mounts it as ext3
and fails.
There is no way back.

SJ