Re: [CentOS] Assitance with perl
On 2022-01-30 20:12, H wrote: I am writing a long bash script under CentOS 7 where perl is used for manipulating some external files. So far I am using perl one-liners to do so but ran into a problem when I need to append text to an external file. Rewrite the whole thing in Perl. Over the years, I have rewritten scores of bash scripts in Perl, and they 1. execute much faster, 2. don't lose variables from while loops, 3. can use any of the thousands of CPAN modules, 4. can use libraries, and on and on. Todd Merriman Software Toolz ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] almalinux?
On 2021-04-05 12:20, mark wrote: Anyone looked into almalinux? I was sort of waiting for rocky, but I see from over the weekend on slashdot that almalinux stable is released. We are moving it into production as we speak! Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Transition test report going from CentOS8 to Debian 10.
If you primarily use CentOS for web hosting with Apache, the Apache configuration for Debian is a whole new world. You will not be able to just copy the CentOS config to Debian. Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] No sound after latest Firefox update (firefox-78.3.0-1.el6.centos.x86_64)
On 2020-10-01 13:10, Robert Nichols wrote: On 9/30/20 8:25 AM, Johnny Hughes wrote: On 9/29/20 9:16 PM, Robert Nichols wrote: With Firefox updated to firefox-78.3.0-1.el6.centos.x86_64, I cannot get sound from Firefox. I've tried restarting pulseaudio, also logging out and logging back in. No help. Other A/V apps work just fine. Downgrading to firefox-68.12.0-1.el6.centos.x86_64 makes sound work again. For now, I've excluded version firefox-78.3.0-1 from yum updates. Anyone else seeing this? Any hints? No problem here .. but as a reminder .. EOL for CentOS-6 is about 1 month away (Nov 2020). That means , once we hit it, no more updates. I still have 3 CentOS-6 installations: 1 desktop, 1 laptop, and 1 virtual machine. On all of them, I get no sound from firefox-78.3.0-1 and have to downgrade to firefox-68.12.0-1. I've tried with all add-ons disabled (Boy, youtube is a pain without adblock.) and there is still no sound. I don't know what else to try. I don't know what I'll do after CentOS-6 goes EOL. I absolutely cannot tolerate CentOS-8. The Ubuntu-derived distros are much better suited to desktop. I run several of them, as well as CentOS 7 and 8. Ubuntu, Kubuntu (Ubuntu with KDE), Lubuntu, Debian, PopOS, and Zorin. Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] erasing a disk
On 2020-09-14 16:52, Robert Heller wrote: At Mon, 14 Sep 2020 13:14:44 -0700 CentOS mailing list wrote: Folks I've encountered situations where I want to reuse a hard-drive. I do If it is a Seagate, don't bother. They have the highest failure rate in the industry. Look at the SMART statistics before deciding to re-use a disk, especially "Reallocated_Sector_Ct," "Power_On_Hours," and run the "extended SMART test." Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 8 & HandBrakeCLI
On 2020-07-13 05:09, Kay Diederichs wrote: On 7/13/20 4:04 AM, Frank M. Ramaekers Jr. wrote: Since I upgraded to CentOS8, I cannot get HandBrakeCLI to work: I could not get HandBrake to work under CentOS 8, so I installed it under Zorin 15 (an Ubuntu-derived German distro). There, it works great. I did not try any of the other distros derived from Debian or Ubuntu itself. Todd Merriman Software Tooolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] USB-serial adapter for CentOS 7
On 2020-07-08 11:28, Tate Belden wrote: I've several USB <-> RS-232 dongles around. As well as a few embedded devices. They all "Just Work (tm)" on Redhat, CentOS, Fedora, Debian, Raspian and Kali. Even if you did have an RS232 port on the box, the serial drivers for CentOS 7 have never worked correctly. I had an application using RS232 that worked perfectly under CentOS 6, and then worked intermittently under CentOS 7, and failed miserably on CentOS 8. The handwriting on the RedHat wall says, "nobody uses RS232 anymore!" I moved the app to a Raspberry Pi 3B+, using the USB serial adapters, and it works perfectly again. Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall questions
On 2020-06-21 15:33, Chuck Campbell wrote: I'm running Centos 7.8.2003, with firewalld. I was getting huge numbers of ssh attempts per day from a few specific ip blocks. If you can control the ssh clients, switch your port number to a non-standard port. Pick one in /etc/services that does not seem to be allocated. Then change "Port" in ssh_config and sshd_config; If other clients are being used (like Putty), it is easy to change it there. We used to get at least 50 probes per day on port 22. Now we get zero. Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Can't move to Centos 8
> On Tue, 12 May 2020 17:42:25 -0700 david wrote: > >> Folks >> >> I've been trying to convert my systems to Centos 8, seeing the EOL on >> the horizon a few years away. One of my systems is a Mac-Mini, and >> support for that has been discontinued. I'm wondering what the >> community suggests among these alternatives: I run CentOS 7 in production, but use Ubuntu for my development desktop. Ubuntu is much more geared to desktop, but I would not use it in a server environment. Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Zoom?
> I'm on Ubuntu and, no, it doesn't work. I installed it the standard way on Zorin 15 (based on Ubuntu 18), and it worked well. Todd Merriman ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 7 32 Bits install.
> > Hi all, > > > > Question : Can I install Centos7 32 Bits on a computer i386 32 bits little > indian pentium III Copermine Model8 Cpufamily 6 CpuMhz 863.979 (lscpu) > grep -i pae /proc/cpuinfo gives a flag pae . I tried that on a Dell Intel(R) Celeron(R) CPU 2.10GHz, and the performance was unusable. Then, I tried Lubuntu 32 (a streamlined Ubuntu distro) and got very acceptable performance. Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Raspberri PI 4B 4GB install image
You will have better luck with Raspbian. Just sayin' I have installed 16 Rapberry Pi's Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Upgrade Centos 6 (32 Bits) to Centos 7 (32 Bits)
> I have a very old PC ( Acer2000) 32 Bits. On this machine I am running (Do > not laugh) SCO Unix in an antique version : So Centos6 probes with the > bootloader on this OS and other OS s. There is a group that voluntarily maintains a 32-bit CentOS 7. I installed that on an old Dell Celeron desktop. The performance was so poor, it was unusable. Then, I tried the lubuntu distro, and that has been running smoothly since July. It is also well-maintained, as there are regular updates. Lubuntu is a derivitive of Ubuntu, which is a derivative of Debian. With Debian, the biggest difference is update (if you are using the command- line). Todd Merriman Software Toolz, Inc. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] No CentOS 8 Updates announced in Centos-announce email list
> Frankly I prefer RSS feeds for notices and news type items that are > noninteractive unlike this support email list where issues can be aired > among like minded individuals. I looked all over the CentOS site for the RSS link and could not find it. I would subscribe to it, if I could. Todd Merriman ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] upgrading from CentOS 7 to 8
> Your answer has nothing to do with the original question which is related > to upgrade method and not condition for reinstalling without loosing > data. After 40 years of upgrading many different operating systems, Windows (from 3.1 to 10), CentOS 6 to 8, Ubuntu, Fedora, Red Hat, AT&T Unix, VAX VMS; I have never observed an upgrade from one major version to the next to work. The last one I tried using their "upgrade process" was Ubuntu 18 to 19. Didn't work. When a new major version of any o/s is released, I have found it best to save what application data I can, delete all partitions on the target boot disk, and then install from scratch. I learned years ago to keep application data out of system directories, ideally on a separate drive that can be mounted on the new installation. Yes, you do loose your settings, but that's why it would be wise to stick with the defaults, if possible. Yes, the database is always in a system directory by default, so that's why you do a dump before the upgrade. My "cheat-sheet" of things to do during an upgrade is about 10 pages long. If you do have to restore from a backup, be sure you do not restore any system directories (like /etc/fstab). I made this mistake, once! System admins must learn to bite the bullet on this part of their job. Todd Merriman ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Replacing sendmail with postfix
exim should also be considered. We have been using exim with CentOS for at least 10 years. Todd Merriman ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 32-bit CentOS
> On Tue, 9 Jul 2019 at 14:40, Dave Close wrote: > >> It appears that CentOS 7 was the last one with a 32-bit version. I'm >> trying to install it on an older laptop and having some trouble. I tried to resurrect a 32-bit desktop with a Pentium 4 processor by installing CentOS 7 32-bit version. Everything installed OK, but after the first boot, the performance was unusable. And, the X11 would crash repeatedly. CentOS 7-32 is completely useless. Then, I tried Ubuntu 16-32 with the Gnome desktop. No crashes, but the performance was unusable, although much better than CentOS 7-32. Then, I tried Lubuntu 18-32, and I have a usable system now. Lubuntu is Ubuntu with a light-weight desktop designed for computers with limited resources. I have also installed Xubuntu 12 on a laptop with a Pentium M processor (pre-PAE capability for extended memory addressing). It performed acceptably. Xubuntu is another light-weight Linux with the XFCE desktop. Todd Merriman ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Issue with CentOS 4.5 as DomU
Hello list,
I want to virtualize my physical CentOS 4.5 yet. Therefor I download the
CentOS 4.5 iso. After mounting the iso on my notebook and make the mounted
iso available via nfs I start on my CentOS 5 xen machine following command:
virt-install -n myServer --ram=512 -f /virt/myServer.disk -s 150
--nographics -p --location=nfs:nbk:/media/centos
This works for CentOS 5 DomUs but CentOS 4.5 brings following error:
tail -n20 /var/log/xen/xend.log:
[2007-07-22 13:46:23 xend 2385] DEBUG (image:203) cmdline=
method=nfs:nbk:/media/centos
[2007-07-22 13:46:23 xend 2385] DEBUG (image:204) ramdisk=
/var/lib/xen/initrd.img.MVoEr1
[2007-07-22 13:46:23 xend 2385] DEBUG (image:205) vcpus = 1
[2007-07-22 13:46:23 xend 2385] DEBUG (image:206) features =
[2007-07-22 13:46:23 xend.XendDomainInfo 2385] ERROR (XendDomainInfo:202)
Domain construction failed
Traceback (most recent call last):
File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 195, in create
vm.initDomain()
File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1377, in initDomain
raise VmError(str(exn))
VmError: (22, 'Invalid argument')
[2007-07-22 13:46:23 xend.XendDomainInfo 2385] DEBUG (XendDomainInfo:1463)
XendDomainInfo.destroy: domid=16
[2007-07-22 13:46:23 xend.XendDomainInfo 2385] DEBUG (XendDomainInfo:1471)
XendDomainInfo.destroyDomain(16)
[2007-07-22 13:46:23 xend 2385] ERROR (SrvBase:88) Request create failed.
Traceback (most recent call last):
File "/usr/lib64/python2.4/site-packages/xen/web/SrvBase.py", line 85, in
perform
return op_method(op, req)
File
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDomainDir.py", line
82, in op_create
raise XendError("Error creating domain: " + str(ex))
XendError: Error creating domain: (22, 'Invalid argument')
Any suggestions? Thanks.
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