[CentOS-devel] CentOS Upgrade Tool

Gianluca Cecchi

gianluca.cecchi at gmail.com
Wed Jan 6 14:47:17 UTC 2016

On Wed, Jan 6, 2016 at 3:31 PM, Trevor Hemsley <trevor.hemsley at ntlworld.com>

> On 06/01/16 13:02, Karanbir Singh wrote:
> > On 06/01/16 11:53, Trevor Hemsley wrote:
> >> Please note THIS TOOL IS BROKEN and should NOT be used.
> >>
> > can we quantify this a bit ?
> >
> >
> The issues have been discussed before but there are many critical
> packages in CentOS 6 that are already at a higher version than the
> equivalent ones in CentOS 7. These do not get upgraded and because they
> do not, various little things like yum itself do not work at all but
> bail out with missing libs, missing symbols etc. Hughesjr put out a call
> on the mailing list for volunteers to help fix it but the silence has
> been deafening and no work has been done.
> Last time I looked a sample of the packages concerned were openldap*,
> nss* and several others that are used by just about everything. Any
> attempt to use the tool on a CentOS 6.6/6.7 and maybe 6.5 system is
> pretty much doomed to fail and even if the upgrade is "successful" it's
> likely the system will either refuse to boot or that many things will
> just not run afterwards.
> There is (was?) also a bug in grubby that failed to deal with grub
> legacy on el7 so any future kernel updates added a new kernel to the
> system that would not boot.
> Trevor
> _______________________________________________

I think CentOS should concentrate on only what supported in Red Hat too.
So we should focus on these two solutions:

and the equivalent CentOS packages and groups, inherited by related RH
In particular this would mean only > 6.5 Server based installations on
x86_64 and:

OK for
Minimal (@minimal)
Base (@base)
Web Server (@web-server)
DHCP Server
File Server (@nfs-server)
Print Server

KO for
All others

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