Re: Do releases have same or different on disk format?

[Seth Mos <knuffie@xxxxxxxxx>]

At 03:56 6-12-2002 -0800, 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.

The on-disk format will not change. The only change so far was in the log 
format. Make sure that you mount a "clean" fs when changing the kernel 
version. (was some time ago)

And update the userspace utilities for quota and acls. That has changed.

> 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

Install the thingie and just update the kernel and userspace utilities. 
That is more then enough.

> 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?

If you are making a large filesystem >1TB or have some other exotice needs 
it might be wise to create those filesystems with a newer mkfs. For just 
the normal / /usr or /var it doesn't matter much.

There are some mkfs options that benefit busy filesystems or special needs. 
If you want version2 log support which is faster for use on EVMS or md 
software raid5 partitions you will also need to do this manually. And you 
need a new mfs.xfs for v2 logs. and >= 2.4.19-xfs

Cheers



--
Seth
It might just be your lucky day, if you only knew.