upgrading 5.4 -> 6.0 without reinstalling. safe ?

[Paul T. Root]

I did this on a Sun Ultra5 system last night.
I forgot (as I usually do) mergemaster -p. But
everything worked fine. The -p usually just
catches missing users and such that could cause
install problems.

Claus Guttesen wrote:
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> 
>>usually when I upgrade across major versions of BSD I wipe the whole
>>machine and re--install from scratch. But I understand that the move
>>to 6.0 from 5.4 is nowhere near such a big leap.
>>
>>So I was wondering hether I could just do this from source without any
>>ill effects, as if I was upgrading 5.4->5.5. I have nnever tried this before
>>though, and was wondering if there are any major pitfalls (i.e. is it actually
>>a really bad idea?)
> 
> 
> The easiest would be to
> 
> 1. cvsup to RELENG_6 (or RELENG_6_0)
> 2. cd /usr/src
> 3. make buildworld
> 4. make buildkernel
> 5. make installkernel
> 6. mergemaster -p
> 7. reboot into single-usermode and verify your new kernel works
> 8. mount -a
> 9. make installworld
> 10. mergemaster
> 11. reboot
> 
> All described in /usr/src/Makefile (and the handbook). You may need to
> reinstall some apps, but most should work with compat5x in place.
> 
> regards
> Claus
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    ______	Paul T. Root
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