Upgrading from 32 bit to 64 bit 2006-09-07 - By Rick Stevens
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On Thu, 2006-09-07 at 14:11 -0700, Harold Hallikainen wrote:
> > On Thu, 2006-09-07 at 10:32 -0700, Waldher, Travis R wrote:
> >> What is involved for Redhat AS 4.0?
> >>
> >> The system was initially built 32bit, but some users would like it
> >> running in 64.
> >>
> >> Is it as simple as loading a different kernel? :fingerscrossed:
> >
> > Well, yeah, but most of your applications won't be accelerated that
> > much. A full 64-bit system will have most of the utilities (/bin,
> > /sbin, /usr/bin, /usr/sbin, etc.) built with 64-bit as well as having
> > full 64-bit libraries (/usr/lib64 as well as /usr/lib).
> >
> > Can you run a 64-bit kernel with 32-bit utilities? Sure. Will it buy
> > you much? Not really. For example, I run an Opteron at home with full
> > FC5 64-bit stuff. Real grunt work (compilations, OpenOffice, etc.) are
> > MUCH faster under 64-bit.
> >
> > I do run some 32-bit apps on it, however. Some examples are: 32-bit
> > firefox so I can have Flash (there's no Flash plugin for 64-bit), Skype
> > (no 64-bit version available), and Opera (same thing). They work fine
> > and do seem a bit faster, but that's a purely subjective opinion. I've
> > done no benchmarking on them. Your mileage may vary. It won't hurt to
> > try running a 64-bit kernel and see what you think. You can always boot
> > the 32-bit one if you don't care for it.
> >
>
>
> I'm also running FC5-64 and have run into the lack of a Flash plug-in.
> What do I do to uninstall the 64 bit FireFox and put in 32 bit, the flash
> plug-in, etc? Can yum do it? When I try to install Flash, the script seems
> to do an OS check and then complain about it being 64 bit. How do you get
> around that? For VoIP, I just installed the latest Gizmo Project, and it
> seems to work fine.
I kept the 64-bit FireFox. I just downloaded the 32-bit RPM and did an
"rpm -ivh --force /path/to/32-bit/rpm/firefox.whatever.rpm". Then I
grabbed the Flash player and buggered the OS detection bit of their
install script. Look in the installer script for a call to "uname -m".
Then add a clause that duplicates the i686 stuff. It'll be around line
252. Here's how I modified it:
TEMPARCH=`uname -m`
case $TEMPARCH in
i[3456]86)
ARCH=i386
;;
NEW-> x86_64)
NEW-> ARCH=i386
NEW-> ;;
Then run the installer as normal. When it asks you where to install
the FLASH player, specify "/usr/lib/firefox".
Then I added a new icon to the desktop that specifically runs
/usr/lib/firefox/firefox-bin and labeled it "Firefox (32-bit)". Voila!
Click on the original icon, you get 64-bit Firefox. Click on the new
one and you get 32-bit Firefox with Flash.
If you like, delete the old icon. I like having both. Actually, I have
four...mozilla (64-bit), firefox (64- and 32-bit), and Opera (32-bit).
Ah, decisions...decisions! :-)
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
- Rick Stevens, Senior Systems Engineer rstevens@(protected) -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- You know the old saying--any technology sufficiently advanced is -
- indistinguishable from a Perl script -
- --Programming Perl, 2nd Edition -
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
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