Re: Some tasks very slow after upgrade from Jessie to Stretch
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
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