Anybody testing ext4 in Fedora 11 Alpha?

[Eric Sandeen]

Will Woods wrote:
> On Thu, 2009-02-19 at 09:40 -0600, Eric Sandeen wrote:
>> Frank Murphy wrote:
>>> Valent Turkovic wrote:
>>>
>>>>> ext4 only available in DVD
>>>> Seams strange... why?
>>> Beacuse the livecd only DD the image to h\d, live cd is ext3.
>>> There is a discussion somewhere, but can't recall.
>>>
>> there was a problem (now finally fixed) with the livecd creation hanging
>> on ext4, so the livecd image had to be ext3; hence an install from
>> livecd also had to be ext3.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=484522 is the bug in
> question; Eric, if it's fixed, could you update the bug?

oops ... done!

> Oh, and by the way.. if you're like me, and you're installing from the
> Live image anyway, you might think: "Hey, I'll migrate the filesystem
> after the install finishes, before I reboot into the new system". Nice
> idea, but if you don't rebuild the initrd after migrating the rootfs to
> ext4, the system won't boot. Yeah, found that out the hard way.
> 
> The steps go something like:
> 1) mount -t ext4 $rootdev /mnt/tmp
> 2) bind-mount dev+proc+sys, chroot /mnt/tmp
> 3) edit /etc/fstab and change the entry for your root device to ext4
> 4) mount /boot and recreate initrd
> 5) exit chroot, umount /mnt/tmp
> 6) tune2fs -O extents $rootdev
> 
> ..yeah, it's kind of complicated. You're better off getting a different
> installer image, or waiting for Beta.

Also ... 'migrating' at this point doesn't gain you a lot; only new
files after this will be written in extents format.

-Eric