On 7/1/2025 9:22 AM, Steven Lembark wrote:
On Sat, 28 Jun 2025 10:33:24 -0700
Jay Faulkner<[email protected]> wrote:
On 6/28/2025 9:38 AM, whiteman808 wrote:
Is it necessary to reinstall Gentoo if I change CPU or motherboard?
If not, what steps should be done on the existing Gentoo
installation? Do I need to do these operations from chroot?
You don't say if the kernel is compiled locally or if you use
something like '-march=native' compiling everything.
If you do then the simplest fix is (assuming you don't have it
all glommed onto one partition) is just do a fresh install on
a new /root + /var LV and mount the old stuff. The baseline
stage3, mount your existing non-stage LV's, build a kernel,
then "emerge @world" isn't that much hands-on time.
Honestly, I think this is overkill given you can:
1) emerge gentoo-kernel-bin (for a starting point kernel that will work
on both devices) 2) update make.conf and emerge -e @world (or read docs
and get some certainty you don't need to for your CPU upgrade) 3) hooray
it works on both systems \o/
I always think that anytime with gentoo you do a reinstall instead of
working through the process, you're giving up a chance to understand how
stuff really works just a little bit better ... which is a lot of the
point of running it for me personally :).
-JayF
