Xin LI wrote:
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Hi, Karl,
Karl Denninger wrote:
I have a machine that can run either (proved, I can boot the AMD-64
release disk)
Can I SOURCE UPGRADE from one to the other? That is, is it possible to
do a "make buildworld", "make buildkernel" and then "make installkernel"
and wind up with AMD64 instead of the 32-bit code?
Or must I reinstall?
It APPEARS I can run most 32-bit code on a 64-bit system. Not all
works, but most does.
This is sort of "doable" but "highly recommend you not to do that"
thing. The simplest way to do 32-bit to 64-bit upgrade would be to
backup your data, install from scratch, then restore data; mixing 32-bit
and 64-bit stuff together, especially without 32-bit stuff moved to the
right place, is among the most terrible mess you wanted to avoid.
Online "upgrade" can be done if you have your 64-bit world/kernel built
and installed into a separate directory (i.e. make world kernel
DESTDIR=/path/to/a/temp/place), then drop into single user mode, then
tar then pipe to another tar to extract the whole thing to /, but this
is really a "foot, gun, shoot" thing.
Cheers,
- --
Xin LI <delp...@delphij.net> http://www.delphij.net/
Hmmmm.... I was thinking something like this (I have the cvsup tree on
the machine)
1. Compile into /usr/robj for amd64 (if I can figure out how to get make
to do it - the obvious, MACHINE_ARCH=amd64, does not work - it barfs.)
2. Intentionally break the mirror (just in case) from the controller;
I've now got a clean bootable drive if something goes wrong.
3. "make installkernel" (install new amd64 kernel)
4. Reboot
Now, the question - will the 32-bit executables RUN under the 64-bit
kernel under single-user so I can "make installworld"?
Or do I get screwed instantly when I reboot?
--
--
Karl Denninger
k...@denninger.net
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