Discuss November 2019

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98 participants
87 discussions

browsers slowing Centos 7 installation to a crawl
by Michael Hennebry 04 Dec '19

04 Dec '19

My video problems mentioned in a previous thread are gone, though I do not know why. Now my problem is that whenever I have a browser open and an internet connection, my Centos 7 slows to a crawl. Chromium seems to be the least bad. Sometimes it slows to the point that I cannot even move the mouse. Even switching between virtual terminals takes a while sometimes. When I get there, top generally shows me between two and five D states. I've changed service providers lately. The problem survived the change. Some sites seem to aggravate the problem. Most recently, a site tried to connect to c.amazon.adsystem.com . I got the message waiting for c.amazon.adsystem.com . I have that address in my hosts file as 127.0.0.1 . ping finds it and pings. nslookup does not: > [hennebry@localhost ~]$ nslookup c.amazon.adsystem.com > Server: 192.168.0.1 > Address: 192.168.0.1#53 > > ** server can't find c.amazon.adsystem.com: NXDOMAIN Whether the slow-to-crawl problem is related to the failure to redirect, I do not know. The former is clearly more important. Any suggestions on how to diagnose it? Any ideas on why chromium is waiting for c.amazon.adsystem.com and how I can fix it? -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a virgin." -- someeecards

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CLAMD and EXIM - anyone got it working`
by Gary Stainburn 01 Dec '19

01 Dec '19

Has anyone actually got CLAMD and EXIM working? I've just had a go on a new VPS server without success. The only thing that happened was that my server slowed because clamd was hogging CPU. I have done a lot of googling and all I found was a couple of howto's that said the same thing, and my questions from 2015 which is the last time I tried this. I can get clamd / freshclam etc installed, although from the two howto's I worked from I had to edit / create service files and edit config files. However, I still do not manage to get a clamd.exim socket created on my system.

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External HD partitioning & formatting considerations
by Nicolas Kovacs 01 Dec '19

01 Dec '19

Hi, One of my clients has a mixed Linux/Mac OS/Windows environment in his office. He just purchased a 4 TB external hard disk, which he intends to use on his various workstations. Up until recently, I've been using plain old MBR/FAT for hard disks in mixed environments. Fire up fdisk, make one big 0b type partition, and then format it using mkdosfs. Unfortunately, there's a 2 TB limit to that. Of course, I could still use a GPT partition, but then I'd still have to format it using a "common denominator" filesystem, e. g. FAT... which is also limited to 2 TB as far as I know. So what now? Use Windows 10 to format the disk using NTFS? This, Windows and Linux could use it, and I'd have to check if Mac OS can manage NTFS file systems. A few years ago, it didn't. Any suggestions? Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32 Mob. : 06 51 80 12 12

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systemd: Failed unmounting /var on reboot, should I worry about fs corruption?
by Ján Lalinský 30 Nov '19

30 Nov '19

Hi all, I have Centos 8 installed on a physical machine (www6) with separate LVM volumes for /, /var, /var/lib/mysql etc. System boot proceeds without a hiccup, in terminal systemctl status says everything is OK and running, journalctl says so as well - systemd mounts everything stated in fstab. However, on reboot systemd echoes problems with filesystem on /var : ...// unmounting all volumes Nov 26 23:51:30 www6 systemd[1]: Unmounting /var... Nov 26 23:51:30 www6 umount[2118]: umount: /var: target is busy. Nov 26 23:51:30 www6 systemd[1]: Stopped target Swap. Nov 26 23:51:30 www6 systemd[1]: Deactivating swap /dev/disk/by-label/lv_swap... Nov 26 23:51:30 www6 systemd[1]: var.mount: Mount process exited, code=exited status=32 Nov 26 23:51:30 www6 systemd[1]: Failed unmounting /var. Then proceeds and reboots the machine. This occurs on every reboot. Did anybody here encounter similar problems on reboot? I found this bug https://github.com/systemd/systemd/issues/867 which was closed without a definitive solution, the developer says the issue is hard to solve and just cosmetic since /var gets unmounted in the end anyway, which is strange because there is a log line about unmounting just about every other mountpoint and in the end of the journal, there are about 7 log lines about unmounting swap volume, but zilch about /var. If the system is getting down without proper unmount, data corruption can happen. I would feel much better if there were no such errors... My /etc/fstab: /dev/mapper/vg_www6-lv_root / xfs defaults,noatime 0 1 /dev/mapper/vg_www6-lv_var /var xfs defaults,noatime 0 0 /dev/mapper/vg_www6-lv_swap swap swap defaults 0 0 /dev/mapper/vg_www6-lv_tmp /tmp xfs defaults,noatime 0 0 /dev/mapper/vg_www6-lv_usr_local /usr/local xfs defaults,noatime 0 0 UUID=XXX /boot xfs defaults 0 0 #/dev/mapper/vg_www6-lv_tmp_mysql /tmp_mysql xfs defaults,noatime 0 0 tmpfs /tmp_mysql tmpfs defaults,noatime,nosuid,nodev,noexec,mode=0755,size=5G 0 0 /dev/mapper/vg_www6-lv_var_lib_mysql /var/lib/mysql xfs defaults,noatime,uquota,gquota 0 0 /dev/mapper/vg_www6-lv_data /data xfs defaults,noatime,uquota,gquota 0 0 -- S pozdravem Ján Lalinský Webhosting C4 ČESKÝ WEBHOSTING s.r.o. Tel: +420 234 139 876 E-mail: info(a)c4.cz http://www.c4.cz

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Help with dracut install CentOS 8
by Jerry Geis 29 Nov '19

29 Nov '19

I am trying to specify a static IP on the new dracut format. I was using this: http://man7.org/linux/man-pages/man7/dracut.cmdline.7.html So my grub entry consists menuentry "Install CentOS 8" { linux /boot/vmlinuz noverifyssl ks=https://something ip=192.168.1.3::192.168.1.1:255.255.255.0::eth0:on:192.168.1.1 biosdevname=0 net.ifnames=0 ksdevice=eth0 inst.sshd sshd=1 initrd /boot/initrd.img } This seems OK to me. But rebooting to start the install for CentOS 8 it just stops and says "system halted". the lines above that have no errors. .3 is the IP I want to use .1 is the GW and the Nameserver in this case. Thanks, Jerry

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Upgrade Centos 6 (32 Bits) to Centos 7 (32 Bits)
by Ger van Dijck 27 Nov '19

27 Nov '19

Hi all , 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. Is there a way to opgrade Centos 6 to Centos 7 in the 32 Bits architecture ? Any help would be usefull. Regards. Ger van Dijck. -- Using Opera's mail client: http://www.opera.com/mail/

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November 13 Board of Director meeting minutes
by Rich Bowen 27 Nov '19

27 Nov '19

The minutes from the November 13th Board of Director meeting are now available on the CentOS blog, at https://blog.centos.org/2019/11/minutes-for-centos-board-of-directors-2019-… -- Rich Bowen - rbowen(a)redhat.com @CentOSProject // @rbowen 859 351 9166

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printer frustrations
by mark 26 Nov '19

26 Nov '19

I've got an old HP LaserJet 1018. It's a winprinter. After I bought a new router (to go inside the Verison one), I plugged it directly into my box (ok, via a hub). I run CentOS 6. Before we went on the trip, I could print, I upgraded my system, and this is the first time I'm trying to print... and no joy. I've tried sending the firmware to it via lp -o raw ... -h :9100, and maybe? it worked, but no printing. I've upgraded to the latest foo2jzs driver and .ppd, and nothing. Any ideas? CUPS since to think it can talk to it.... Yes, the system can see the printer.... mark

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My ethernet is not listed in centOS 8 boot.iso
by Ebed 26 Nov '19

26 Nov '19

Hi, Yesterday i tried to install centOS 8 on my little router and server, but there's no ethernet listed there. I'm using Compaq pressario V3737TU which come with Marvell PCI-e ethernet 100Mbps. It's an old laptop. Could anyone here help?

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yum4 and dnf on CentOS 8
by Sergio Belkin 25 Nov '19

25 Nov '19

Hi, I was using yum for years on CentOS servers, and since a few years ago dnf on Fedora desktops. My question is: Is the same yum4 on CentOS 8 that dnf? What should I use? Thanks in advance -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org

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Discuss November 2019