new Centos server install yum dependancy error

[Gerald Galster]

> Am 23.02.2019 um 03:33 schrieb Voytek Eymont via dovecot <dovecot at dovecot.org>:
> 
> 
> 
> On Sat, February 23, 2019 10:41 am, Gerald Galster via dovecot wrote:
> 
>> 
>> 
>> you can't install it yet because dovecot-2.3.4-2.x86_64 is not shown,
>> probably due to the priority protection plugin:
>> 
>> -> 226 packages excluded due to repository priority protections
>> 
>> 
>> Try disabling it, see:
>> 
>> 
>> https://serverfault.com/questions/312472/what-does-that-mean-packages-exc
>> luded-due-to-repository-priority-protections
>> <https://serverfault.com/questions/312472/what-does-that-mean-packages-ex
>> cluded-due-to-repository-priority-protections>
>> 
>> Afterwards you should see all dovecot packages and can install version
>> 2.3.4 again
> 
> 
> Gerald,
> 
> thank you again
> 
> in meanwhile, I've tried specifying repo as in 'yum --enablerepo..',
> perhaps I din't do it correctly as got errors, BUT, following your
> advise/link, disabling r-p-p, now I see:
> 
> # yum install  dovecot dovecot-devel dovecot-mysql dovecot-pigeonhole
> Loaded plugins: fastestmirror, langpacks
> Loading mirror speeds from cached hostfile
> * base: mirror.nsw.coloau.com.au
> * epel: mirror.nsw.coloau.com.au
> * extras: mirror.ventraip.net.au
> * remi-safe: remi.conetix.com.au
> * updates: mirror.nsw.coloau.com.au
> Resolving Dependencies
> --> Running transaction check
> ---> Package dovecot.x86_64 2:2.3.4.1-1 will be installed
> ---> Package dovecot-devel.x86_64 2:2.3.4.1-1 will be installed
> ---> Package dovecot-mysql.x86_64 2:2.3.4.1-1 will be installed
> ---> Package dovecot-pigeonhole.x86_64 2:2.3.4.1-1 will be installed
> --> Finished Dependency Resolution
> 
> Dependencies Resolved
> 
> ================================================================================
> Package                Arch       Version         Repository             
> Size
> ================================================================================
> Installing:
> dovecot                x86_64     2:2.3.4.1-1     dovecot-2.3-latest    
> 4.4 M
> dovecot-devel          x86_64     2:2.3.4.1-1     dovecot-2.3-latest    
> 475 k
> dovecot-mysql          x86_64     2:2.3.4.1-1     dovecot-2.3-latest     
> 92 k
> dovecot-pigeonhole     x86_64     2:2.3.4.1-1     dovecot-2.3-latest    
> 704 k
> 
> Transaction Summary
> ================================================================================
> Install  4 Packages
> 
> Total download size: 5.6 M
> Installed size: 18 M
> Is this ok [y/d/N]:
> 
> 
> so I guess I'm good to hit 'y'
> 
> and:
> 
> Running transaction check
> Running transaction test
> Transaction test succeeded
> Running transaction
>  Installing : 2:dovecot-2.3.4.1-1.x86_64                                 
> 1/4
>  Installing : 2:dovecot-devel-2.3.4.1-1.x86_64                           
> 2/4
>  Installing : 2:dovecot-mysql-2.3.4.1-1.x86_64                           
> 3/4
>  Installing : 2:dovecot-pigeonhole-2.3.4.1-1.x86_64                      
> 4/4
>  Verifying  : 2:dovecot-devel-2.3.4.1-1.x86_64                           
> 1/4
>  Verifying  : 2:dovecot-mysql-2.3.4.1-1.x86_64                           
> 2/4
>  Verifying  : 2:dovecot-pigeonhole-2.3.4.1-1.x86_64                      
> 3/4
>  Verifying  : 2:dovecot-2.3.4.1-1.x86_64                                 
> 4/4
> 
> Installed:
>  dovecot.x86_64 2:2.3.4.1-1           dovecot-devel.x86_64 2:2.3.4.1-1
>  dovecot-mysql.x86_64 2:2.3.4.1-1     dovecot-pigeonhole.x86_64 2:2.3.4.1-1
> 
> Complete!
> [root at c7 ~]# dovecot --version
> 2.3.4.1 (3c0b8769e)
> 
> 
> thanks again!
> (I should've read the install screen properly in the first place, and,
> should've noticed I was installing NOT from dovecot...)
> 
> 
> just thinking... now that I installed OK, should I revert the priority
> protection to '1', if I don't, will it bite me elsewhere, any thought ?

I've never used it. When you install/update, yum shows which repository the package belongs to.
This has been sufficient so far.

https://wiki.centos.org/PackageManagement/Yum/Priorities <https://wiki.centos.org/PackageManagement/Yum/Priorities>  / 7. A Cautionary Note:

# Note: The upstream maintainer of yum, Seth Vidal, had the following to say about
# 'yum priorities' in September 2009

# Gosh, I hope people do not set up yum priorities. There are so many things about
# priorities that make me cringe all over. It could just be that it reminds me of
# apt 'pinning' and that makes me want to hurl.

# The primary concern is that priorities is heavy handed over removing packages
# from the transaction set. It makes it difficult to readily determine what packages
# are being ignored and why. Even so, it is very flexible and can be extremely useful
# to provide the largest available list of packages.

Best regards
Gerald

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