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34758 discussions

another bizarre thing...
by Fred Smith 13 Aug '19

13 Aug '19

Hi all! I'm stuck on something really bizarre that is happening to a product I "own" at work. It's a C program, built on CentOS, runs on CentOs or RHEL, has been in circulation since the early 00's, is in use at hundreds of sites. recently, at multiple customer sites it has started just going away. no core file (yes, ulimit is configured), nothing in any of its (several) log files. it's just gone. running it under strace until it dies reveals that every thread has been given a SIGKILL. How does one figure out who deliverd a SIGKILL? For other, non-fatal, signals it is possible to glean the PID of the sending process in a signal handler, but obviously you can't do that for SIGKILL because the app doesn't survive the signal. I'm grasping at straws here, and am open to almost any kind of suggestion that can be followed-up (as compared to "beats me" which is where I am now). I'm even wondering if systemd has something to do with it. Thanks in advance! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. ------------------------------- Romans 5:8 (niv) ------------------------------

10 22

Re: [CentOS] failure to install LibreOffice 6.3.0.4
by Jerry Geis 12 Aug '19

12 Aug '19

Hi Fred, I do this from time to time... download the tgz... then I extract the tgz, cd RPMS then run rpm -i *.rpm --force Then of course you man need to change your path to use the new /op/.... Hope that helps, Jerry

2 1

Data migration from one server to another- Centos 7
by Matt Zand 12 Aug '19

12 Aug '19

I want to move all my OS, services like Apache configuration and application (web server) files and folders to another brand new server. Both servers are running on Centos 7. i want to clone everything. My questions 1- what is the easiest way to do this? 2- do I need to partition hard-drive of new server exactly as old one? 3- Is there any changes to make on new server after full migration? 4- will root and other user credentials stay the same? Any other suggestion appreciated, -- Cheers, Matt Zand Cell: 202-420-9192 Work: 240-200-6131 High School Technology Services <https://myhsts.org/> DC Web Makers <https://dcwebmakers.com/> Coding Bootcamps <https://coding-bootcamps.com/>

2 1

Next week in Boston
by Rich Bowen 09 Aug '19

09 Aug '19

Reminder: Next week we will be holding the second annual Centos Dojo in Boston, ahead of devconf.us at Boston university. Details are at https://wiki.centos.org/Events/Dojo/DevConfUS2019 and spaces are still available.

1 0

C7 Kernel module compilation
by Alessandro Baggi 09 Aug '19

09 Aug '19

Hey there, I'm trying to compile a single module following this guide: https://wiki.centos.org/HowTos/BuildingKernelModules#head-d2e4c05886f94c701… and https://wiki.centos.org/HowTos/I_need_the_Kernel_Source I tried to compile a module for novuton led controller supplied by thirdparty and I got several error. To check if this is the wrong procedure I tried to compile cifs module as listed in howto but when loading with modprobe I get "Exec format error", and from dmesg "cifs: no symbol version for module_layout ", the same errors when compiling novuton module and I don't know why I get this error. I noticed that modules in centos are compressed in .xz but after running make M=fs/cifs I got only a .ko kernel module and then I run xz to compress the new module. Can someone help me please? Thanks in advance.

3 14

Two questions
by Jerry Geis 08 Aug '19

08 Aug '19

You guys are awesome working on CentOS 8! Where might a get a list of the packages in CentOS 8 ? Will there be a "in place" upgrade from 7 to 8? Thanks, Jerry

1 0

Win 10 and C 6 CUPS
by mark 07 Aug '19

07 Aug '19

Is there any way, other than installing CUPS on windows, to get the damn Win laptop to print to my C 6 box, which has CUPS running and a USB laserjet? mark

5 6

Mate on Centos 7
by H 07 Aug '19

07 Aug '19

I have been running Mate on Centos 7 for some time but it does not work very well on my HiDPI laptop screen. Today I found that I am running version 1.16 of Mate whereas the current version is 1.22. Undoubtedly many of the issues have been fixed since 1.16 was released in 2016... However, EPEL only provides 1.16 - a release from 2016 - and nothing later. What is the recommended way to upgrade to 1.22?

10 19

Install tunctl on CetnOS 7 ?
by John Chludzinski 07 Aug '19

07 Aug '19

Which repo has tunctl for CentOS 7 ?

3 3

Virtual manager and vhdx
by Jerry Geis 07 Aug '19

07 Aug '19

I am trying to find out if Virtual Manager or qemu directly can take a Hyper v vhdx file and use it "as is"... I desire to not boot windows, update the vhdx image I have created, etc... I'd rather just have the vhdx image sitting on linux, boot the virtual manager with the vhdx file, update what I need to update and shut back down. Is that possible ? Thanks, Jerry

1 0

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