Discuss April 2020

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90 participants
69 discussions

MATE 1.20 test build for CentOS 7 available
by Greg Bailey 14 Oct '21

14 Oct '21

Hi everyone, There's been discussions in the past about updating MATE RPMs in EPEL-7: https://bugzilla.redhat.com/show_bug.cgi?id=1436260 https://lists.centos.org/pipermail/centos/2019-August/173154.html (and lots of others...) As a proof-of-concept, I've written some scripts that clone specific commits from the Fedora master branches, and then runs a tool to re-apply RPM scriptlets that are required by EL7 but removed from the Fedora .spec files. The scripts are available at: https://github.com/gebailey/mate-rpms/tree/master/1.20/el7 There's also instructions there if you want to try upgrading to MATE 1.20 w/o rebuilding them yourself. If these packages work for others, perhaps we can revisit the idea of updating the epel7 branches of the Fedora git repos and submitting an official update. There's nothing here (yet) about building MATE 1.22 (which might require a newer gcc for EL7), or building anything on CentOS 8, but thought the CentOS 7 users might find this helpful. -Greg

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Brother HL-L2360DW printing quality
by H 23 Jul '20

23 Jul '20

I have the above printer but have not been able to resolve issues with the printing quality in CentOS 7. The test page prints fine but when I print PDF-documents, most recently using Chinese fonts, it is lacking and the pages very hard to read. The settings in the Mate Cups configuration panel are fine and set to 600 dpi, the settings in the printer menu are all OK yet it prints more like maybe 150 or even 75 dpi. Any suggestion what might be wrong?

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CentOS 8 CD Ripper
by Mark LaPierre 10 May '20

10 May '20

Hey all, Does anyone know of a CD ripper that will work with CentOS 8? I've found a great many that will work CentOS 6 and 7 but nothing that will build for CentOS 8. -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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CentOS 8 installation
by isdtor 08 May '20

08 May '20

Are there still a lot of rough edges in this area? There are some things I simply can't get to work. This is about kickstart installations. Finding the right stuff for the %packages sections is lucky dip at best. The RHEL manual points to the comps file, really? This file isn't meant to be parsed by humans. Specifying an environment - the example "Infrastructure Server" doesn't exist. Is this one of the areas where CentOS deviates from RHEL? I did find server-product-environment, custom-environment, minimal-environment. I followed the link in the documentation to the kickstart file generator. The generated file isn't usable as is, specifically the %packages section - anaconda says there is no group dns-server, for instance. Which dnf later confirms. The group list in dnf also seems to be a lot shorter than it used to be under 7? Specifying %packages --multilib, this is where it breaks down completely. For the chosen group/package mix, which works perfectly without multilib, anaconda complains about conflicts for files provided by both the i686 and the x86_64 version of, in this case, gdb-headless and sssd-common. Attempting to fix this with -gdb-headless.i686 -sssd-common.i686 fails, these lines are being ignored. Excluding gdb-headless altogether fails also because the main gdb package pulls it in. Honestly, I'm not sure where to go from here.

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systemctl restart changes permission.
by Kaushal Shriyan 02 May '20

02 May '20

Hi, I am running CentOS Linux release 7.8.2003 (Core) with php72u-fpm-7.2.30-1.el7.ius.x86_64 version. I am facing the below permission denied issue. I also did the below steps #cd /run #chown -Rc nginx.nginx php-fpm changed ownership of ‘php-fpm/php-fpm.pid’ from root:root to nginx:nginx changed ownership of ‘php-fpm’ from root:root to nginx:nginx #systemctl restart php-fpm again changes it from nginx.nginx to root.root user. nginx error logs > 2020/04/30 03:09:28 [crit] 17175#0: *154570 connect() to > unix:/run/php-fpm/www.sock failed (13: *Permission denied*) while > connecting to upstream, client: 49.207.54.161, server: _, request: "GET / > HTTP/1.1", upstream: "fastcgi://unix:/run/php-fpm/www.sock:", host: > "35.128.212.112" > 2020/04/30 03:09:28 [error] 17175#0: *154570 open() > "/var/www/drupal/web/50x.html" failed (2: No such file or directory), > client: 49.207.54.161, server: _, request: "GET / HTTP/1.1", upstream: > "fastcgi://unix:/run/php-fpm/www.sock", host: "35.128.212.112" > 2020/04/30 03:09:35 [crit] 17176#0: *154573 connect() to > unix:/run/php-fpm/www.sock failed (13: Permission denied) while connecting > to upstream, client: 49.207.54.161, server: _, request: "GET / HTTP/1.1", > upstream: "fastcgi://unix:/run/php-fpm/www.sock:", host: "35.128.212.112" > 2020/04/30 03:09:35 [error] 17176#0: *154573 open() > "/var/www/drupal/web/50x.html" failed (2: No such file or directory), > client: 49.207.54.161, server: _, request: "GET / HTTP/1.1", upstream: > "fastcgi://unix:/run/php-fpm/www.sock", host: "35.128.212.112" > 2020/04/30 03:09:49 [crit] 17175#0: *154575 connect() to > unix:/run/php-fpm/www.sock failed (13: Permission denied) while connecting > to upstream, client: 14.98.153.6, server: _, request: "GET / HTTP/1.1", > upstream: "fastcgi://unix:/run/php-fpm/www.sock:", host: "35.128.212.112" > 2020/04/30 03:09:49 [error] 17175#0: *154575 open() > "/var/www/drupal/web/50x.html" failed (2: No such file or directory), > client: 14.98.153.6, server: _, request: "GET / HTTP/1.1", upstream: > "fastcgi://unix:/run/php-fpm/www.sock", host: "35.128.212.112" > 2020/04/30 03:09:50 [crit] 17175#0: *154575 connect() to > unix:/run/php-fpm/www.sock failed (13: Permission denied) while connecting > to upstream, client: 14.98.153.6, server: _, request: "GET / HTTP/1.1", > upstream: "fastcgi://unix:/run/php-fpm/www.sock:", host: "35.128.212.112" > 2020/04/30 03:09:50 [error] 17175#0: *154575 open() > "/var/www/drupal/web/50x.html" failed (2: No such file or directory), > client: 14.98.153.6, server: _, request: "GET / HTTP/1.1", upstream: > "fastcgi://unix:/run/php-fpm/www.sock", host: "35.128.212.112" > 2020/04/30 03:10:46 [crit] 17176#0: *154578 connect() to > unix:/run/php-fpm/www.sock failed (13: Permission denied) while connecting > to upstream, client: 184.22.107.148, server: _, request: "GET / HTTP/1.1", > upstream: "fastcgi://unix:/run/php-fpm/www.sock:", host: "35.128.212.112" > 2020/04/30 03:10:46 [error] 17176#0: *154578 open() > "/var/www/drupal/web/50x.html" failed (2: No such file or directory), > client: 184.22.107.148, server: _, request: "GET / HTTP/1.1", upstream: > "fastcgi://unix:/run/php-fpm/www.sock", host: "35.128.212.112" Please let me know if you need any additional information. Thanks in Advance. Best Regards, Kaushal

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GNS3 installation docs for CentOS 8
by System Administrator 01 May '20

01 May '20

Hi, Does anyone have GNS3 installation guide for CentOS 8? Would be grateful if you could give me. Thank you. Sonam ****************************************************************************************************************************** Information contained in this message maybe confidential in nature and is meant for the intended recipient(s) of the message only. Tashi InfoComm Limited has the sole right to such information and any copying/redistribution of the information contained in the message, without the prior written consent of Tashi InfoComm Limited, is Prohibited. ******************************************************************************************************************************

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Diagnosing IPv6 routing
by Kenneth Porter 30 Apr '20

30 Apr '20

I just got 50 Mbps symmetric fiber from AT&T and it includes a /56 of IPv6 addresses, replacing a much slower ADSL line. I never tried to get IPv6 working on the old connection. I'm using CentOS 7 as a gateway and it's worked great for several versions for IPv4. I'm not seeing any IPv6 default route on the WAN interface. I suspect I'm not getting route announcements. I think I have all the IPv6 variables in ifcfg-em2 set right. But I do notice that the accept_ra file in proc for that interface has value 1, not 2. Changing it to 2 doesn't change anything, though. No route appears. While I wait for an answer to my trouble ticket, is there some way to verify that I'm not receiving any RA packets? Is there a way to force a solicitation for one? Is there a tcpdump invocation I can use to watch for them? Are there log messages that will tell me when an RA has been seen and added to the routing table or ignored?

3 11

INITRD_MODULES
by Jerry Geis 29 Apr '20

29 Apr '20

I am trying to take a CentOS 7 img and get hyperv to boot. First step. qemu-img convert "CentOS7.img" -O vhdx -o subformat=dynamic "CentOS7.vhdx" after adding new hyper-v I get dracut-timeout... So doing some searching it says add hv_vmbus hv_netvsc hv_storvsc to INITRD_MODULES. which doesnt really exist any more in CentOS 7. I did find /etc/dracut.conf and add_drivers... I uncommented the line for '#add_drivers += "" ' added the above modules and then ran: grub2-mkconfig -o /boot/grub2/grub.cfg Then redid the convert above... Hyper-V still gives me dracut-timeout errors. Thoughts ? Did I miss something ? Thanks Jerry

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Tomcat or what on CentOS 8?
by Simon Matter 29 Apr '20

29 Apr '20

Hi, We're running some web apps on CentOS 6 on Tomcat 6 shipped by the distribution. As time goes by we'd like to move on to CentOS 8 and Tomcat 9 or whatever is appropriate. My question is, what do others use now that Tomcat is not shipped anymore with CentOS? Do you run some JBoss/WildFly instead or still running Tomcat? And, how do you install/manage those installations. Do you have RPM packaged versions or fiddle with tarballs? Since this is a quite standard setup for web apps I'm really wondering how everybody is doing it these days? Thanks, Simon

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Checksums in Distribution Directories
by david 29 Apr '20

29 Apr '20

Folks While trying to automate a download of the ISO files, I ran into inconsistencies with the method of checksums. I was trying to use the checksum values to validate my download. At least in one mirror (mirrors.sonic.net): Centos 7 uses a file called sha256sum.txt containing: 087a5743dc6fd6706d9b961b8147423ddc029451b938364c760d75440eb7be14 CentOS-7-x86_64-DVD-2003.iso 4120aff542c2f9a30bcf90d4d79e39511e5d9eabdf202566a94ff24ea7f0974c CentOS-7-x86_64-Everything-2003.iso 659691c28a0e672558b003d223f83938f254b39875ee7559d1a4a14c79173193 CentOS-7-x86_64-Minimal-2003.iso 101bc813d2af9ccf534d112cbe8670e6d900425b297d1a4d2529c5ad5f226372 CentOS-7-x86_64-NetInstall-2003.iso 3febddab1498f940e3127f2f5e1056d6fef57fcd559d5b70ff1bfa55a444f176 CentOS-7-x86_64-LiveGNOME-2003.iso 92be566a5b1d2aa62acf2e4ab01ba91420e7170cdb21e2e190dd1dafcb6a8c94 CentOS-7-x86_64-LiveKDE-2003.iso Centos 8 uses a file called CHECKSUM containing: # CentOS-8.1.1911-x86_64-boot.iso: 625999872 bytes SHA256 (CentOS-8.1.1911-x86_64-boot.iso) = 7fea13202bf2f26989df4175aace8fdc16e1137f7961c33512cbfad844008948 # CentOS-8.1.1911-x86_64-dvd1.iso: 7554990080 bytes SHA256 (CentOS-8.1.1911-x86_64-dvd1.iso) = 3ee3f4ea1538e026fff763e2b284a6f20b259d91d1ad5688f5783a67d279423b While these are fairly easy to understand as a human, a script is burdened with the job of guessing the file name of the checksum file, and then decoding the format. I don't know if this method is used on all mirrors. Would it be too much to ask that there be one format across the distributions. I suspect that SHA256 is going to be an acceptable digest for a few years. David

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Discuss April 2020