2009-02-05 - Fedora Test Day - ext4 default fs

[Eric Sandeen]

Peter Robinson wrote:
>>> I've installed a couple of F-10 systems with ext-4 without major
>>> issues but in F-10 you couldn't use ext4 for the /boot partition which
>>> I presume you'll be able to do for F-11.
>> Eventually, I hope so.  Not that /boot is all that critical... but there
>> is an ext4 patch for grub which needs some testing yet.  (and needs some
>> pushing-to-rawhide yet).
>>
>>> Also there's the option now of using ext4 without a journal in recent
>>> time (presumably to be able to finally do away with ext2) which for
>>> some systems is very useful so to be able to use that option when
>>> installing would be very useful too.
>> doubtful that ext2 will ever go away, it's still kind of the canonical
>> disk-based filesystem in the kernel (very useful as an example if
>> nothing else), but usecases for ext2 may well migrate to ext4+nojournal.
>>
>> When you say useful to use it when installing, you mean so that the
>> resulting fs is set up that way?  It could always be switched over
>> post-install; having the install option would be *nice* but not
>> *critical* - in general the installer doesn't expose very many
>> mkfs/mount options for any filesystem at this point ....
> 
> Useful to be able to specify either through a boot parameter like ext4
> gets specified for F-10 at the moment or through a kickstart options
> for building images. I think it gets used quite a bit for flash based
> systems so as reduce the wear on the flash.

yes, I'd like to automatically make optimisations like this if flash can
be detected by anaconda.

-Eric