On Fri, 2002-12-06 at 05:56, John Haverty wrote:
> Do releases have the same or different on disk format? I want to start off
> with a RH71 [for reasons out of my control] box and put my own kernel on.
>
> Say, I get the snapshot patches for 2.4.20, will this be equivalent if I
> installed XFS R1.0 on 7.1, then upgrade to 2.4.0+snapshot XFS
> OR
> Make my own bootable-CD, using the latest kerel+xfs and utilities, and make
> the filesystems and say rsync the system I want on there? [this does work,
> but its more time consuming]
>
> Am I losing anything by not using the mkfs from say -current or release 1.2?
>
On disk format has not changed at all, we have added some new
features along the way, it is possible to mkfs a filesystem
with new commands which an old kernel cannot mount. But
default mkfs options will not do that. A newer kernel should
always be able to mount an older filesystem.
I would recommend recent commands though, a lot of fixes have
gone into them over time.
In 2.4 XFS we have a number of core kernel changes which have
been modified over time. Getting a patch from one kernel version
to apply to another one requires a fair amount of knowledge of
how things work and probably a fair amount of editing. Similarly,
getting an xfs code base from one kernel version to work with
another one is not always simple. I may just be mis-interpreting
your intentions here, I have been up since 4am and have not
drunk any coffee yet.
Steve
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