Discuss October 2018

discuss@lists.centos.org

114 participants
69 discussions

2038 year Problem
by Johann Fock 04 Oct '18

04 Oct '18

Hallo Im using CentOS 7 Ist the 2038 year Problem solved in CentOS 7.5 64 bit Version Thanks Johann Fock Von meinem iPad gesendet

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Trouble installing with Nvidia card
by Elliott Balsley 03 Oct '18

03 Oct '18

Hi all, I'm having trouble doing a fresh install of CentOS 7.3. I'm using the DVD installer ISO, burned to a USB flash drive. The system is a Supermicro 7048 with four Nvidia Titan Xp GPUs, and I have the monitor connected to the first GPU. In the BIOS, VGA priority is set to Offboard, so I am seeing POST messages (good). The CentOS installer begins and shows a few messages on my monitor, but it stops after "Reached target Basic System" ok. At this point, if I connect a second monitor to the motherboard VGA port, then I see the installer continuing on that screen. Is there some way to install without using a VGA monitor? Thanks in advance.

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CERN Dojo in 2 weeks: Registration closes soon
by Rich Bowen 03 Oct '18

03 Oct '18

A reminder: The CERN Dojo will be held in Meyrin, Switzerland, on October 19th, and registration closes soon, as we have to issue security badges for all attendees. Attendance is free, but you must register to get in the front door. We'll have a full day of deep-dive CentOS content, in the midst of one of the most famous research facilities in the world. You don't want to miss it! http://cern.ch/centos See you at CERN! -- Rich Bowen - rbowen(a)redhat.com @CentOSProject // @rbowen 859 351 9166

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CERN Dojo in 2 weeks: Registration closes soon
by Rich Bowen 03 Oct '18

03 Oct '18

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Centos7/Kde4 freeze
by Patrick Begou 03 Oct '18

03 Oct '18

Hi I have a fresh install of centos 7.4 with KDE on a laptop (latitude 5590) connected to a DELL WD15 dockstation with an additionnal screen. It works quite well, I have 2 screens side by side (default config), but.... If I add a second menu bar for the screen connected to the dockstation (KDE allow for this) it is not possible anymore to start a kde session if the laptop is not connected to the dock station (eg: at home), kde freeze and never show any menubar. I have to use gnome to login and remove the .kde directory. Is there a way to avoid this ? Thanks Patrick -- =================================================================== | Equipe M.O.S.T. | | | Patrick BEGOU | mailto:Patrick.Begou@grenoble-inp.fr | | LEGI | | | BP 53 X | Tel 04 76 82 51 35 | | 38041 GRENOBLE CEDEX | Fax 04 76 82 52 71 | ===================================================================

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Unknown NFSv4 ACL permission
by Paul Heinlein 02 Oct '18

02 Oct '18

Our new-to-us Isilon is handling NFSv4 ACLs differently than other NFS file servers we've had. In particular, something causes an 'O' to pop up in the permission field, but I cannot find any documentation of it. For example, [Linux]$ nfs4_getfacl TODO A::OWNER@:tTcCy A::GROUP@:tcy A::EVERYONE@:rwaxtTnNcy A:O:OWNER@:rwadxtTnNcCoy A:gO:admins@madboa.com:rwadxtTnNcy A:gO:readonly@madboa:rxtnc A:O:EVERYONE@:tncy I'll note that when those 'O' perms get added, our OmniOS (Solaris-alike) hosts cannot read the ACLs: [SunOS]$ ls -v TODO ls: can't read ACL on TODO: Invalid argument -rwxrwx--- 1 heinlein wheel 2488 Oct 2 15:13 TODO If, on the Linux side, I run nfs4_editfacl and do nothing but remove the 'O' permission symbols, then things clear up. Has anyone here seen anything like this? My google-fu has failed. -- Paul Heinlein heinlein(a)madboa.com 45°38' N, 122°6' W

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Step-by-Step Tutorial: How to Setup Your Own e-Commerce Online Store using WooCommerce 3.4.5, Wordpress 4.9.8, and CentOS 1805 (LAMP) in Amazon AWS Cloud
by Turritopsis Dohrnii Teo En Ming 02 Oct '18

02 Oct '18

Good morning from Singapore, You can read my step-by-step tutorial on How to Setup Your Own e-Commerce Online Store using WooCommerce 3.4.5, Wordpress 4.9.8, and CentOS 1805 (LAMP) in Amazon AWS Cloud at any one of my two redundant blogs. My blogs were configured in RAID 1 mirroring array. https://tdtemcerts.wordpress.com/2018/09/29/step-by-step-tutorial-how-to-se… https://tdtemcerts.blogspot.com/2018/09/step-by-step-tutorial-how-to-setup-… Thanks for reading! If there are any mistakes, please do let me know! ===BEGIN SIGNATURE=== Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017 [1] https://tdtemcerts.wordpress.com/ <https://tdtemcerts.wordpress.com/>[2] http://tdtemcerts.blogspot.sg/ <http://tdtemcerts.blogspot.sg/>[3] https://www.scribd.com/user/270125049/Teo-En-Ming <https://www.scribd.com/user/270125049/Teo-En-Ming>===END SIGNATURE===

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L1TF in CentOS
by Patrick Rael 02 Oct '18

02 Oct '18

Hi, I've applied the latest kernel upticks of kernel and microcode_ctl for L1TF. Just rpm updates and rebooted, no further changes. kernel-2.6.32-754.3.5.el6.x86_64.rpm kernel-firmware-2.6.32-754.3.5.el6.noarch.rpm kernel-headers-2.6.32-754.3.5.el6.x86_64.rpm perf-2.6.32-754.3.5.el6.x86_64.rpm microcode_ctl-1.17-33.3.el6_10.x86_64.rpm L1TF has several mitigations. So far I can see that only this one is applied. # cat /sys/devices/system/cpu/vulnerabilities/l1tf Mitigation: PTE Inversion Is this the definitive check? I'm trying to confirm the L1Data Cache flush isn't enabled. It's ok if only this PTE Inversion is applied for me, I just need to be sure, because when I read this url from Redhat, it says 2 of the 3 mitigations are enabled by default, but I see only 1: https://access.redhat.com/security/vulnerabilities/L1TF "/All mitigations are enabled by default with the exception of disabling Hyper-Threading, which customers must take explicit manual steps to turn off./" Also, I haven't been able to find clarity on what mitigations need to be applied to VMs, which ones to VM servers, which to kvm instances and kvm servers, and if containers and container servers need any special treatment. Thanks! -->Pat

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C7 and NVIDIA driver
by Alessandro Baggi 01 Oct '18

01 Oct '18

Hi all, I'm running C7 on i7 8700k/asus z370-a with an GTX1050. I noticed that there are several problems installing Nvidia proprietary driver. After one week of troubleshooting I got my solution. Hope that can help other user. I found this https://access.redhat.com/solutions/3438891 but I've not access to this content. In this content seems that the workaround is using lightdm and mask gdm. The case: I tried using proprietary driver from nvidia site and from elrepo. In all the case I got system that hungs during boot. In a first time I got message about a device probing (and some kernel trace about i915) and running systemd-analyze blame seems that udev-settle hungs for several minutes. Some suggested to disable udev-settle if you does not have LVM but this is not my case. After this error I got error with GDM (infinite hungs) so I tried lightdm that works blinking. So I switched to multi-user level, I got always udev-settle hung but running startx system works but with some strange behaviuour. Now I tried another solution. I installed kernel-lt, kernel-lt-devel and reinstalled NVIDIA driver. All works very well also reenabling graphical runlevel. best regards

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Discuss October 2018