Update failure: Mate requires

I just tried updating this laptop to the shiny new Centos version and it appears that Mate doesn't like the new version of libgtop, as you can see here:

Error: Package: marco-1.16.1-3.el7.x86_64 (@epel)
Removing: libgtop2-2.34.2-2.el7.x86_64 (@base)
Updated By: libgtop2-2.38.0-3.el7.x86_64 (base)
Error: Package: mate-applets-1.16.0-1.el7.x86_64 (@epel)
Removing: libgtop2-2.34.2-2.el7

DNS bind - use of /etc/named directory


For many years we have modified the '/etc/named.conf' file to include local
settings. The disadvantage with this is of course that when bind is updated, it
creates an '/etc/named.conf.rpmnew' file. We then have to determine what is
new, and apply the relevant changes to our modified named.conf file.

There is, however, an '/etc/named' directory which I assumed was for local
configuration settings.

EPEL update?


OT for this list, but maybe I can get some pointers - how hard is it to get some packages updated in EPEL? The project web site sends you from link to link, and the ML web interface is horrible. No interest here to become a package maintainer or regular contributor.

I have taken it upon myself to rebuild MATE from Fedora 29, seeing that the current EPEL-7 packages are four revisions behind. Also updated a few packages to their latest upstream version.

Connect CentOS 7 / GNOME to wireless WPA2/AES ?


I just shipped a CentOS 7 laptop with a slightly customized GNOME
desktop to one of my clients who works for a belgian public broadcasting
service. He wants to move away from the world of proprietary software,
so he sent me a list of specifications, which we have almost completed.
There's a handful of items we still have to work out. One of them is the
specific wireless connection available at his workplace.

He can connect to his home network OK using the NetworkManager applet
provided in the GNOME desktop.

CR repo update disaster for my desktop.

I have a centos 7.5 desktop workstation with dual nvidia graphic cards running three monitors. I use the i915 motherboard graphics adapter for the third monitor with bumblebee to work the magic to enable the three contiguous work spaces.
I use the kmod nvidia drivers for the two graphics cards. This has worked without a hitch for 5 months until this weekend.
I enabled the CR repo and did the yum update. Some 800+ rpms were offered and all seemed to resolve depenancies OK, so yes it was started. The updates completed and all looked good, until the reboot.

Bastion server

Please can you give me an equivalent off Wallix but open source?


In centos, how to switch to default gcc after switched to a higher version of gcc with devtoolset.

I want to install several gcc with different versions in centos. The default version of gcc in centos6 is 4.9.3. So I use devtoolset install a higher version of gcc. Then I switch to the higher version of gcc by executing "source /opt/rh/devtoolset-5/enable". But now if I want to switch back to the default gcc, how should I do?
By the way, is there any solution to install multiple gcc with different versions in centos 5?

Php script not running

Hi All, I have centos 7.

Gnome_shell out of memory

Hi All,

I have a CentOS 7.5 box running.

CentOS Dojo at FOSDEM, February 1, 2019

The final schedule for the CentOS Dojo at FOSDEM is now live at
<a href="" title=""></a> and registration is open.

aarch64 boot up process/EFI


I am not sure if this is the correct place to ask, but I do not have anyone else to go to.

I'm working on building our own custom aarch64 RHEL distribution and using CentOS SRPMs to rebuild necessary packages. I am also utilizing kickstart.

At this point, my kickstart installs all packages (by using a local repository with newly rebuild packages), but in the end I get an error "failed to write boot loader configuration". I noticed that i have /boot/efi/EFI/redhat directory on my newly "installed" server, while centos server has /boot/efi/EFI/centos directory.

C7 install, "failed to IDENTIFY"

The install from a USB key fails. It's showing ata2:0.0 failed to
IDENTIFY. I've been searching online, and the only hint I have is that it
might not understand the controller.

New Dell Optiplex 7050.

Haanyone run into this?


CentOS 7 package not present in Red Hat EL 7 - qt-assistant

I'm using CentOS 7 for development of software that is sometimes used on
Red Hat Enterprise Linux 7. I conjunction with an update of one of the
applications, I asked some Red Hat users to install the Qt 4 Assistant
application via the qt-assistant package (which is used by a "help"
function in our software.) It seemed like there was no such package in
the Red Hat package set, however, and I also see no mention of it in
"package manifests" like
<a href="" title=""></a>.

Tools/mechanisms for the management of access permissions in big filebased datasets


we are currently managing access permissions through classical
user-group-others permissions on a multi-petabyte directory tree with
partially very deep and broad directories. Projects are represented by
directory trees and mapped through GIDs. Lately we had lots of
"singular" permission request (one single user needs access to a single
dataset but should not be able to see all other datasets belonging to
the same project).

CentOS 7 bash perhaps off topic

hi all,

I have a small script that seems to be exiting and hitting the sleep 60...
The smwebsocket just connects to the web socket provided and outputs the
data. This works manually.

the myprogram just opens a database and writes the line...

My desire is to run the smwebsocket, connect to the websocket and output
the data (line by line) when we get a line that matches Location take that
line and output to the database. Seems simple.

rpmbuild errors

Hi list,
I need a more updated version of bacula because I need to backup a
debian workstation.

So I decided to build my own bacula package base on bacula 9.2.0.

I'm new to rpmbuild and I created my bacula.spec file but when running
rpmbuild -ba bacula.spec I got error about check-rpaths like:

ERROR 0001: file '/usr/sbin/bregex' contains a standard rpath
'/usr/lib64' in [/usr/lib64]

Running rpmbuild as suggested, adding QA_RPATHS=$[ 0x0001|0x0010 ] works
without problem but I don't understand what is wrong with my spec files.

Another issue that I found is when installing this rpm.

NBDE, clevis and tang for non-root disk


Has anybody managed to get network disk bound disk encryption to work with
a non-root disk? It works fine for the root device, but the moment I add
another volume to /etc/crypttab the system will no longer boot

digital signature equipment


I apologize if this is off topic for this list!!!!!

I have an application that I need to acquire, store and merge to a pdf file a digital
signature from a client. What favorite equipment do some of you use to do this.

I contacted the topaz systems support team, and they advised me their equipment produced a
proprietary file type, and required me to sign a non-disclosure agreement to do what I was
asking to do. I indicated I was willing to proceed, but I have not been able to get them
to communicate in follow up. ....

Where to buy S/MIME ??

Hi, I'm getting increasingly paranoid.

Something I said on a certain social media site several months ago was
modified - then reported - then by account was banned until I agreed to
delete it.

Obviously since what I said was modified I didn't have any issue with
deleting it but I want more than just DKIM sigs on my e-mail now.

Anyway looking for S/MIME I can use to sign and/or encrypt but mostly

Re: [CentOS] Upping my game on web work

Frank Cox wrote:

Upping my game on web work

Until now, I have been satisfied with hand coding my html for simple,
but effective web pages (see <a href="" title=""></a>).

But I want to offer one of our small synagogues some web pages and need
a few tools for them to use to compose their pages and upload content.

What 'simple' web support tools do we have here?

Of course I will be doing this on armhfp,,,

CentOS-announce Digest, Vol 165, Issue 2

Send CentOS-announce mailing list submissions to
<a href="mailto:centos- ... at centos dot org">centos- ... at centos dot org</a>

To subscribe or unsubscribe via the World Wide Web, visit
<a href="" title=""></a>
or, via email, send a message with subject or body 'help' to
<a href="mailto:centos-announce- ... at centos dot org">centos-announce- ... at centos dot org</a>

You can reach the person managing the list at
<a href="mailto:centos-announce- ... at centos dot org">centos-announce- ... at centos dot org</a>

When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-announce digest..."

Today's Topics:


"Details" on Software Updates app not working

... and causing me great concern at the moment.

I've got a notification of 673 Software updates at the moment. I didn't
see anything on this list that indicated that kind of update.
Unfortunately, the "Details" option which would normally show me what
repo is providing the updates, does not seem to provide any information.
Anyone else having this problem? Not happy... :(

selinux, sendmail, and disable_ipv6

Just started seeing this on one server:
python: SELinux is preventing sendmail from read access on the file

It recommends a local policy. Now, searching, I see someone filed a bug
for CentOS last year, 0012914, and they wound up creating a policy.


Note, btw, that the system has two IPv6 addresses - my manager has fallen
for slack. Both valid.


kernel 3.10.0-957.el7.x86_64 + EFI on Dell server - problem

hi guys

I've one box where I just yesterday upgraded Centos. I
wonder if that kernel upgrade process might somewhat
After that upgrade UEFI boot fails with:

Failed to set MokListRT: Invalid Parameter
Something has gone seriously wrong: import_mok_state() failed
: Invalid Parameter

Has anybody seen that? And maybe know to fix it?
many thanks, L.

rescue - UEFI revert to BIOS boot - how?

hi guys

I have a box on which UEFI boot has gone haywire and instead
of boot it power the box down, that is before even going to
grub2. (displays some error message)
I if change to BIOS boot then I can start Centos' rescue -
my question is: how can I rescue, re-build grub so it would
boot from tradition BIOS?

many thanks, L.


Dear colleagues,

I signed up for this list to learn more about CentOS and the language.

I ask you to understand me and help me to better understand the language
and the system.

For most phrases I'm using Google Translate but I've been struggling to
read and understand without it.

Whats is CDE?

This word was written in "Red Hat is Planning To Deprecate KDE on RHEL
By 2024".

Re: [CentOS] CentOS 7 + GNOME : all icon themes broken after update from CR

I did the update from CR, and have some pretty serious issues.  Until I blew away (by mv to a different name) the .local and .config directory trees, I couldn't log in to GNOME at all.  After doing that, I can log in, but if I do any actual work, GNOME crashes, and abrt-cli from root in vc 2 tells me that gnome-shell got a SIGSEGV. I figure all of the updates aren't in CR yet, so I'm going to pull out my backup machine and work with it until I see if CR gets more updates.  Good thing I've got vacation scheduled for next week!I did quite a few other things in trying to troubleshoot, including a

CentOS 7 + GNOME : all icon themes broken after update from CR


I just upgraded one of my CentOS 7 + GNOME desktops from the CR repo.
After the upgrade, it seems like all of the icon themes are broken.
Missing icons everywhere.

Any idea what's going on here ?



NetworkManager and /etc/resolv.conf

CentOS 7.5 image running on linode.

unbound running on localhost.

Have to use a cron job once a minute to keep /etc/resolv.conf using the
localhost for name resolution - whenever NetworkManager gets restarted
(usually only a system boot) it gets over-written.

It seems every distro has a different way of preventing NetworkManager
from replacing that file.

I found instructions for Fedora that said create
/etc/NetworkManager/conf.d/no-dns.conf containing


That doesn't seem to have any effect.

Poking around, I find a file on boot seems to be created called


Continuous Release (CR) Repository has been released for CentOS Linux 7.6.1810 for X86_64, i386, armhfp, aarch64, power9, ppc64le

We have pushed the CR repository for CentOS Linux 7.6.1810 for following


We are currently still working on the ppc64 / ppc architecture as we are
having issues with some of the 32bit ppc mulitlib builds.

CR is basically the packages that will update your install from CentOS
Linux 7.5.1804 to 7.6.1810, minus the centos-release rpm and the
anaconda rpms.  What we will do now is take these packages and create
the new install tree and install media, then test those and finally
release them as the official CentOS 7.6.1810 release.

This pr

sssd ldap_user_search_base filters with '#' characters in names

I'm trying to craft an ldap search filter for use with
ldap_user_search_base in sssd.conf which is using Actice Directory (AD)
as the back end on CentOS 7 clients

The filter looks for users that are memberOf a particular group -
however, the group name start with a '#' character - i.e.

Where is centos6.x kernel git repo

Hi, I following the steps described in <a href="" title=""></a>
to get centos7.x kernel repo. But I'm wondering how to get centos6.x
kernel repo. Because when checkout branch 'c6' and found that there is


CONFIG_RTC_SYSTOHC not set for CentOS kernels

Hi folks,

RHEL 7 documentation says that if either ntp or chrony is running on a
system, then it will enable the kernel feature to sync system time to
the hardware clock every 11 minutes.

RHEL 8 Public Beta Released

<a href="" title=""></a>

'date' format differences between CentOS 6 and 7 using the en_GB locale ?

Just noticed that the output of 'date' is different between CentOS 6 and
7 when using the 'en_GB' locale - e.g.:

CentOS 6:

% LANG=en_GB date
Thu Nov 15 11:42:46 GMT 2018
% LANG=en_US date
Thu Nov 15 11:42:56 GMT 2018

CentOS 7:

% LANG=en_GB date
Thu 15 Nov 11:43:07 GMT 2018
% LANG=en_US date
Thu Nov 15 11:43:11 GMT 2018


centos 7.5 crashed, kernel BUG at net/core/skbuff.c:3668!

[ 176.025679] random: crng init done
[ 411.168635] netem: version 1.3
[ 456.059840] ------------[ cut here ]------------
[ 456.059849] WARNING: CPU: 4 PID: 1918 at net/ipv4/tcp_output.c:1048 tcp_set_skb_tso_segs+0xeb/0x100
[ 456.059851] Modules linked in: sch_netem cirrus ttm drm_kms_helper crc32_pclmul syscopyarea ghash_clmulni_intel sysfillrect sysimgblt fb_sys_fops aesni_intel lrw ppdev gf128mul drm glue_helper ablk_helper cryptd parport_pc parport i2c_piix4 virtio_balloon i2c_core joydev pcspkr ip_tables ext4 mbcache jbd2 ata_generic pata_acpi ata_piix virtio_console virtio_net vi

CentOS Dojo @ FOSDEM

We're delighted to announce the schedule, and registration, for the
upcoming CentOS Dojo in Brussels, on February 1, 2019, the day before
FOSDEM starts.

Details are here: <a href="" title=""></a>

The schedule is still marked "Tentative" since I have not received
confirmation from all of the speakers yet, but we're almost there.

Registration is FREE, but we do ask that you register anyways, since it
helps us with venue planning and catering.

See you in Brussels!

error creating output file /var/lib/logrotate/logrotate.status.tmp: File exists

Hi all,

I have configured a specific logrotate task to rotate certain logs every hour and everytime this logrotate's task runs, I am receiving an email like this:

Auto-Submitted: auto-generated
Precedence: bulk
X-Cron-Env: <LANG=en_US.UTF-8>
X-Cron-Env: <LC_ALL=en_US.UTF-8>
X-Cron-Env: <XDG_SESSION_ID=4502>
X-Cron-Env: <XDG_RUNTIME_DIR=/run/user/0>
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>
X-Cron-Env: <PATH=/usr/bin:/bin>
X-Cron-Env: <LOGNAME=root>
X-Cron-Env: <USER=root>
Status: R

error: error creating output file /var/lib/logrotate/l

merging signatures to a pdf file


I am working on a module with the use of pdktk that merges *.fdf data files with a *.pdf
file for a filled out pdf form. I have the need to add a signature to the pdf form. Do
any of you know of a way to make this happen?

Thanks much!!!

Greg Ennis

off-topic question about RDP to Win-10

I have a win10 VM in virtualbox on my Linux (C7) desktop. I CAN connect
to it with rdesktop 1.8.3 (now rather old, but it's the latest release),
but cannot connect with remmina or krdc. Both of them just hang for a
while then say they can't connect.

Curiously, they all will connect to the win10 box in my office.

They don't show any other useful information, and I don't know where
to go to figure this out. Anyone out there have any ideas they can share?

thanks in advance!


touchpad problem

Hi all!

I have a new-to-me (i.e., used) laptop and am having a problem making
the touchpad behave.

It is an old HP Elitebook 8530p, and I THINK it has a synaptics
touchpad. But I don't remember how to get more specifics than that
on Linux, lspci, lsusb and lshw don't tell me anything helpful.
lsmod doesn't list anything containing "syn" or "synaptics".

Anyway, I've installed C7 on the laptop and pretty much everything
works just as I expect it to, but even though I configure the touchpad
for two-finger-scrolling, it simply won't do it.

Multiple grub2 Users with Passwords

Hello All,

I am trying to set multiple users with passwords for modifying grub2
menu entries at boot. I know I can set a "root" user grub2 password with
grub2-setpassword. I have also been able to make a grub2 user password
using the grub2-mkpasswd-pbkdf2 command and adding

    set superusers="user1"

to the /etc/grub.d/40_custom file. However, I have multiple user
administrators that will possibly need access to grub at boot (i.e. to
boot to single user mode to fix a broken configuration file).

Drop/Terminate data to/from source using firewalld rich rules

I need to be able to temporarily cut off the source of network slowdowns.

What I used to do:
Router with 2 x NICs running slackware 14.
Execute iptraf-ng, choose IP Network Monitor and sort by Byte Count.
The sorted screen always seemed a bit confusing but I could usually
pluck a couple of IP addresses with racing byte counts and cut all
traffic to them using an iptables rule.
Then if I wanted to identify the computer or device, I’d go into the
dhcpd.leases file and look for the ip address and the corresponding
device hostname.
It was a bit of a pain, but it worked.

Router with 2 x NIC’

CentOS 6: Logrotate / selinux problem

Ever since a recent power failure I have been getting a Logrotate error. My
machine is on a UPS -- it shutdown cleanly, but I suspect that its BIOS/RTC
battery is dead, since the machine came up thinking it was 1982 :-(. I reset
the clock and everything is fine, *except* I had to delete Logrotate's state
files (which had bad dates).

Evolution: always a 90-second delay

I'm trying to use Evolution on the latest CentOS 7.

Whenever I try to receive or send mail, there's always a 90-second
delay before the connection works. Since the delay is always exactly
90 seconds, I think I may be waiting for something to time out.

Perhaps this is a clue. My address is <a href="mailto: ... at example dot com"> ... at example dot com</a>. I have to log
in to or as user, not as
<a href="mailto: ... at example dot com"> ... at example dot com</a>. Evolution seems to always try to connect as
<a href="mailto: ... at pop dot"> ... at pop dot</a> or <a href="mailto: ... at imap dot"> ... at imap dot</a>. I can't get it to try
to connect as user.

last failed login...

Hi all!

I just (well, a few days ago) installed C7 on a new-to-me (used) laptop,
and notice something I've not noticed before, either on my personal
desktop, or other C7 machines I use:

every time I log in, it gives me a message something like "last failed
login <timestamp>", where the date and time it gives are RIGHT NOW, just
at the time I'm logging in (which succeeds).

Anybody know why that would be happening?

BTW, using the Mate desktop, but did not change the DM, so I think
it is still GDM.

Thanks in advance!


Load html file into elinks from desktop

With a html file on my (Mate) desktop I would like to be able to
right-click on it and select "open with" and have it load into elinks.

But I haven't yet figured out the magic command line that I need for
this to happen.

gnome-terminal --command="elinks %s"

That loads elinks but doesn't load the html file into it.

gnome-terminal --command="cat %s | elinks" doesn't work either.

where to download kernel-3.10.0-693.17.6.el7 and kernel-devel-3.10.0-693.17.6.el7


I check the following link : <a href="" title=""></a>, and can't find kernel-3.10.0-693.17.6.el7 and kernel-devel-3.10.0-693.17.6.el7 rpm files.

Where can I download the kernel from CentOS website?




OT: good free email service ?

Dear All,

I know it is an oxymoron: good free ... service ;-)

Still, can someone recommend good free email service?

I definitely will not go with google, Microsoft, Apple.

CentOS-announce Digest, Vol 165, Issue 1

Send CentOS-announce mailing list submissions to
<a href="mailto:centos- ... at centos dot org">centos- ... at centos dot org</a>

To subscribe or unsubscribe via the World Wide Web, visit
<a href="" title=""></a>
or, via email, send a message with subject or body 'help' to
<a href="mailto:centos-announce- ... at centos dot org">centos-announce- ... at centos dot org</a>

You can reach the person managing the list at
<a href="mailto:centos-announce- ... at centos dot org">centos-announce- ... at centos dot org</a>

When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-announce digest..."

Today's Topics:


A newbie question about searching an installed packet


I’m french and literally one. So I’m not really easy with Sheakespeare language. So, accept my apologies.

As write in subject, I’m a newbie about CentOS an all RedHat declines. I wrote a Shell script for ours Debians (all sort of Debian like) which verify which packets are present before running. I thought I had found an equivalent with « yum list installed | grep <packet> » command but I have sometime alerts about a lock because an other instance of « yum » is running.

I don’t understand why a simple « yum list » impose that!

Desktop files change?


Does anyone know if they changed the way that desktop files for apps work?

It seams that inside your start script you can no longer change your
scripts directory.

Does it now call some form of restricted shell?

Anyone know where you can track these changes?


command in kickstart file to write disklabel?

Dear All,

At some point after release of CentOS 7 (though this thing might have
started before, it is just when _I_ noticed it) I discovered that if I
stick into machine drive without disk label, and then do kickstart
installation, the command in kickstart file

clearpart --initlabel

does not work. Even worse: if I just use GUI installer the drive is not
listed between available disks. If I switch in the same installer to some
virtual console

Ctrl + Alt + F2

I can see that the kernel installer run under definitely sees the drive:
/dev/sda is present.

Yum through a proxy

I have configured yum to use a proxy via the yum.conf file by adding:


What I noticed when running yum check-up date is that some requests are
going through the proxy while the system seems to be trying to resolve the
domains of other hosts in the repo and trying to establish direct
connections to them instead of going through the proxy.

Can anyone explain this behavior?

Fresh install C7 nvidia

I am install C7.5 on a nvidia unit and nvidia-detect tells me to use
so I do the yum install and and after a long time I see this

-> Processing Dependency: kernel(__drm_atomic_helper_crtc_duplicate_state)
= 0xa5f3a170 for package: kmod-nvidia-390xx-390.87-2.el7_6.elrepo.x86_64
--> Processing Dependency: kernel(__drm_atomic_helper_crtc_destroy_state) =
0x00a9c70b for package: kmod-nvidia-390xx-390.87-2.el7_6.elrepo.x86_64
--> Processing Dependency: kernel(__check_object_size) = 0x88db9f48 for
package: kmod-nvidia-390xx-390.87-2.el7_6.elrepo.x86_64
--> Processing Dependency: k

Yum and proxy settings

I have configured yum to use a proxy via the yum.conf file by adding:


What I noticed when running yum check-up date is that some requests are
going through the proxy while the system seems to be trying to resolve the
domains of other hosts in the repo and trying to establish direct
connections to them instead of going through the proxy.

Can anyone explain this behavior?

CentOS Dojo at FOSDEM - Registration now open

We are pleased to announce the (tentative) schedule of talks for the
upcoming CentOS Dojo in Brussels, which will be held on the day before
FOSDEM - February 1, 2019 - at the Grand Place Marriott.

Details, and the schedule, are now available at
<a href="" title=""></a> (Schedule subject to

Registration is free, but we need to know how many people are coming,
for catering and space purposes. You can register today at:
<a href="" title=""></a>

See you in Brussels!

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