Problem: conflicting requests

Issues related to applications and software problems and general support
User avatar
warron.french
Posts: 596
Joined: 2014/03/27 20:21:58

Problem: conflicting requests

Post by warron.french » 2021/06/10 17:04:13

After a simple build with CentOS-8.1.1911 (Core) I attempted to perform the following:

Code: Select all

yum list installed | egrep "postfix|dovecot"
I did get back the results I did want, but I also got back a couple of errors that has only ever occurred for me on CentOS-8.

What causes this and how do I fix this error, please.
yum-conflicting_requests.PNG
yum-conflicting_requests.PNG (59.57 KiB) Viewed 279 times
Thanks,
War

User avatar
jlehtone
Posts: 3532
Joined: 2007/12/11 08:17:33
Location: Finland

Re: Problem: conflicting requests

Post by jlehtone » 2021/06/10 17:49:30

grep hides part of output. yum can do the filtering by itself:

Code: Select all

yum list installed \*postfix\* \*dovecot\*
Does that reveal more?


PS. Why with CentOS-8.1.1911? CentOS-8.4.2105 is out already and even CentOS-8.3.2011 has been available for months.

User avatar
TrevorH
Forum Moderator
Posts: 30771
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: Problem: conflicting requests

Post by TrevorH » 2021/06/10 18:00:29

There are multiple perl modules available in CentOS 8 and it appears that you may have the wrong one enabled.

And yes, update to 8.4, don't use 8.1.
CentOS 6 died in November 2020 - migrate to a new version!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 is dead, do not use it.
Full time Geek, part time moderator. Use the FAQ Luke

User avatar
warron.french
Posts: 596
Joined: 2014/03/27 20:21:58

Re: Problem: conflicting requests

Post by warron.french » 2021/06/10 21:11:11

jlehtone wrote:
2021/06/10 17:49:30
grep hides part of output. yum can do the filtering by itself:

Code: Select all

yum list installed \*postfix\* \*dovecot\*
Does that reveal more?


PS. Why with CentOS-8.1.1911? CentOS-8.4.2105 is out already and even CentOS-8.3.2011 has been available for months.
I want to install CentOS-8.4, but where I was today did not exactly provide me with internet access due to proxies and firewalls, etc... I was hoping a yum update would enable me to update the machine to the latest and then I could use curl or something like that to download the actual 8.4 ISO then move it to our corporate network drives and then load into VMware.

This machine in discussion is actually a VM. That's why CentOS-8.1, I was limited in terms of access to the internet from where I was sitting.
Thanks,
War

User avatar
warron.french
Posts: 596
Joined: 2014/03/27 20:21:58

Re: Problem: conflicting requests

Post by warron.french » 2021/06/10 21:11:50

TrevorH wrote:
2021/06/10 18:00:29
There are multiple perl modules available in CentOS 8 and it appears that you may have the wrong one enabled.

And yes, update to 8.4, don't use 8.1.
So, is the perl problem generic to CentOS-8 or specific to CentOS-8.1?
Thanks,
War

User avatar
jlehtone
Posts: 3532
Joined: 2007/12/11 08:17:33
Location: Finland

Re: Problem: conflicting requests

Post by jlehtone » 2021/06/10 21:29:25

That is semi-irrelevant because CentOS Linux 8.1 is no longer supported.

'yum list installed' does not print to stderr on CentOS Linux 8 (the supported 8.4). That could depend on installed packages, but as general rule it does not.

I would remove the offended packages, update everything else, and then reinstall (latest versions) of those packages.

I would probably start with:

Code: Select all

sudo dnf --enablerepo=* clean all
sudo dnf update centos\* dnf\* yum\*
sudo dnf --enablerepo=* clean all
Then perhaps

Code: Select all

sudo dnf update --exclude=kernel\*,perl\*
sudo dnf update --exclude=kernel\*
sudo dnf update
Obviusly, if any step gives errors, then react and adapt rather than proceeding.

User avatar
warron.french
Posts: 596
Joined: 2014/03/27 20:21:58

Re: Problem: conflicting requests

Post by warron.french » 2021/06/11 18:37:24

We finally got proxy settings configured to allow me to install more software, and even updated to CentOS-8.4.2105.

I ran the command you suggested @jlehtone:

Code: Select all

yum list installed \*postfix\* \*dovecot\*
And got back the following output:
yum-conflicting_requests.PNG
yum-conflicting_requests.PNG (43.02 KiB) Viewed 224 times
Thanks,
War

User avatar
TrevorH
Forum Moderator
Posts: 30771
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: Problem: conflicting requests

Post by TrevorH » 2021/06/11 18:40:28

What does dnf module list perl say?
CentOS 6 died in November 2020 - migrate to a new version!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 is dead, do not use it.
Full time Geek, part time moderator. Use the FAQ Luke

User avatar
warron.french
Posts: 596
Joined: 2014/03/27 20:21:58

Re: Problem: conflicting requests

Post by warron.french » 2021/06/15 14:16:27

Hey TrevorH, sorry for the delay.

Here is what I can show you:
Capture.PNG
Capture.PNG (67.56 KiB) Viewed 126 times
Thanks,
War

User avatar
TrevorH
Forum Moderator
Posts: 30771
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: Problem: conflicting requests

Post by TrevorH » 2021/06/15 14:32:57

perl:5.26 is default but not enabled.
CentOS 6 died in November 2020 - migrate to a new version!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 is dead, do not use it.
Full time Geek, part time moderator. Use the FAQ Luke

Post Reply

Return to “CentOS 8 - General Support”