On 02/28/18 10:11, Schrey wrote:
Recently I cloned & upgraded a (virtual) build system, from Jessie to
Stretch,
and some tasks have become so slow that it hurts.
I am a Debian user, not a Debian tester or a Debian developer.
I prefer Debian Stable because I want my computers to work reliably. I
typically delay major version upgrades for 6+ months, to allow Stable to
stabilize. I skipped Jesse entirely, and only recently upgraded to Stretch.
There are two schools of thought for Debian major version upgrades:
1. Do an in-place upgrade.
2. Do a fresh install and migrate.
Years ago, I tried the former. Invariably, I ran into problems I could
not trouble-shoot and ended up with systems that I had no confidence in.
Yours is just another in an unending stream of posts demonstrating
that my experience was not unique, and still persists. I can only
conclude that an in-place upgrade of something as complex as a real,
working, and productive Debian system is an exercise in futility.
So, now I do the latter. This is facilitated by, and integrated into,
my backup/ restore, archive, and imaging processes. I have confidence
in the results.
David