Upgrade RHEL AS3 to AS4

[Vikram Kalsi]

Thanks Rick,

I actually need the newer 2.6 version of the kernel more than other
things. Would you suggest upgrading just the kernel from  2.4.21-15.EL
to 2.6.9-5.0.3.EL on a RHEL AS3 install? This is a Itanium2 machine
from IBM.

Thanks again,



On Mon, 28 Feb 2005 11:50:53 -0800, Rick Stevens
<rstevens at vitalstream.com> wrote:
> Vikram Kalsi wrote:
> > Hi Everyone,
> >
> > Does anyone know of all the ways in which we can upgrade from RHEL AS3 to AS4?
> 
> There's two I know of:
> 
> 1. Back up everything you need and do a fresh install, then restore your
> data.  This is the safest way because there are massive differences
> between AS3 and AS4.
> 
> 2. Do an "upgrade" install.  There are dangers in that, but it works
> most of the time.  AS4 is so new that I haven't personally seen such
> an upgrade.
> 
> I did upgrade from FC1 to FC2 (2.4 kernel to 2.6 kernel) when FC2 came
> out (similar to an upgrade from AS3 to AS4).  I had to do some tweaking,
> but I'm a geek and I got it to work fine.  Your mileage may vary.
> 
> Remember, AS3 uses a 2.4 kernel and AS4 uses a 2.6 kernel.  The
> internals between the two kernels are RADICALLY different as well as
> the device handling (udev/devfs is standard in 2.6 kernels) and other
> things.  You'll get used to it.
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -      A day for firm decisions!!!   Well, then again, maybe not!    -
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