Discuss May 2018

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93 participants
86 discussions

Centos 7 on Dell Latitude E6500
by Rainer Fügenstein 09 Oct '19

09 Oct '19

Hi, I tried to install Centos7 x86_64 minimal 1503-01 from an USB flash drive on my old Dell Latitude E6500 laptop. boots up in text mode, switches text resolution, writes: Started Show Plymouth Boot Screen Reached Target Paths Reached Target Basic System. then hangs for some time, eventually starting dracut emergency shell. log says: multipathd: sdb: spurious uevent, path already in pathvec multipathd: sda: spurious uevent, path already in pathvec interesting: sdb is the internal 240GB kingston SSD drive (existing ntfs bitlocker partition recognized as sdb1) sda is the write protected USB stick, recognised as CDROM drive. 4GB rom intel 45 express chipset mobile intel GMA 4500MHD graphics intel 5100AGN wifi what to try next? any additional infos I can give you? thnx in advance. -- Best regards, Rainer mailto:rfu@oudeis.org

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/boot partition too small
by KM 02 Oct '19

02 Oct '19

First off - let me say I am not an administrator. I need to know if there is an easy way to increase my /boot partition. When I installed CentOS 6 after running 5, it was my oversight not to increase the /boot size. it's too small and I can't do yum updates. if it's not easy to actually increase it, is it safe to take a chunk in my root filesystem (like /new.boot or something) and just mount it as /boot from now on so it uses the space or is that not a good idea? I am sure I could easily copy the rpms/kernel stuff over to it and then unmounts the real /boot and mount this new area as /boot. Can you administrators let me know what you think of all this? Thanks in advance. KM

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dmarc auth on incoming email
by Fred Smith 23 Jan '19

23 Jan '19

Just reading up on DMARC, toying with setting it up to auth against incoming emails. (but not configure my domain to use dmarc, or at least not yet) ran into an article about opendmarc, which is available on epel. but when I took a look at the opendmarc website and the git pages it doesn't appear to have been updated in several years. while I see that it is still available from epel, I wonder if anyone knows the project status? Is it still active? are there any other viable alternatives? thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- The eyes of the Lord are everywhere, keeping watch on the wicked and the good. ----------------------------- Proverbs 15:3 (niv) -----------------------------

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ARM64 CentOS AltArch release 7.5
by Frederik Lotter 07 Jun '18

07 Jun '18

Hi, I have two questions: (1) In 7.3 CentOS released a rootfs tar for ARM64. I can no longer find this under the 7.5 release. Furthermore, I could also not find anything on the ISO that seems rootfs-like in any near complete state. The closest was the LiveOS/rootfs.img, but it seems this is not a complete fs as yum is missing components, for example. So my question is: Is there any way to still use CentOS releases on new ARM64 development environments (without EFI boot support)? (2) In terms of UEFI firmware support in the ARM64 world (e.g. EDKII vs Uboot), is there any officially supported solution for CentOS, or do you simply support whatever supports the UEFI interface? Regards, Fred

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Definitive guide to setting up FTPIS on vsftpd
by Frank M. Ramaekers 06 Jun '18

06 Jun '18

I have a new CentOS 7.4 (recently upgraded to 7.5) system that I have been struggling with in configuring vsftpd for FTPS Implicit (port 990). (The latest instructions I've used are at: https://www.unixmen.com/configure-vsftpd-ssltls-centos-7/) Using Filezilla client, I get: Error: GnuTLS error -15: An unexpected TLS packet was received. Error: Could not connect to server Using Core FTP LE: SL/TLS error - 0, SSL error - 1, error:00000001:lib(0):func(0):reason(1) SSL Connection not established Using WinSCP: TLS connect: error in SSLv2/v3 read server hello A TLS connect: error in SSLv2/v3 read server hello A Can't establish TLS connection Disconnected from server lftp from a remote Linux: Fatal error: gnutls_handshake: An unexpected TLS packet was received. Debugging, I get: ... GNUTLS: EXT[0x2aa440f42d0]: sent signature algo (2.3) ECDSA-SHA1 GNUTLS: EXT[0x2aa440f42d0]: Sending extension SIGNATURE ALGORITHMS (22 bytes) GNUTLS: HSK[0x2aa440f42d0]: CLIENT HELLO was queued [268 bytes] GNUTLS: REC[0x2aa440f42d0]: Preparing Packet Handshake(22) with length: 268 and min pad: 0 GNUTLS: ENC[0x2aa440f42d0]: cipher: NULL, MAC: MAC-NULL, Epoch: 0 GNUTLS: REC[0x2aa440f42d0]: Sent Packet[1] Handshake(22) in epoch 0 and length: 273 GNUTLS: ASSERT: gnutls_buffers.c:1154 GNUTLS: ASSERT: gnutls_buffers.c:588 GNUTLS: ASSERT: gnutls_buffers.c:1154 GNUTLS: ASSERT: gnutls_buffers.c:588 GNUTLS: ASSERT: gnutls_buffers.c:1154 GNUTLS: ASSERT: gnutls_buffers.c:588 GNUTLS: ASSERT: gnutls_buffers.c:1154 GNUTLS: ASSERT: gnutls_buffers.c:588 GNUTLS: ASSERT: gnutls_buffers.c:1154 GNUTLS: REC[0x2aa440f42d0]: SSL 48.48 Unknown Packet packet received. Epoch 0, length: 8271 GNUTLS: ASSERT: gnutls_record.c:572 GNUTLS: Received record packet of unknown type 53 GNUTLS: ASSERT: gnutls_record.c:1076 GNUTLS: ASSERT: gnutls_record.c:1158 GNUTLS: ASSERT: gnutls_buffers.c:1409 GNUTLS: ASSERT: gnutls_handshake.c:1446 GNUTLS: ASSERT: gnutls_handshake.c:2757 **** gnutls_handshake: An unexpected TLS packet was received. GNUTLS: REC[0x2aa440f42d0]: Start of epoch cleanup GNUTLS: REC[0x2aa440f42d0]: End of epoch cleanup GNUTLS: REC[0x2aa440f42d0]: Epoch #0 freed GNUTLS: REC[0x2aa440f42d0]: Epoch #1 freed ---- Closing control socket TIA! Frank M. Ramaekers Jr. | Systems Programmer | Information Technology | American Income Life Insurance Company | 254-761-6649 (732-6649) ---------------------------------------------------------------------- This message contains information which is privileged and confidential and is solely for the use of the intended recipient. If you are not the intended recipient, be aware that any review, disclosure, copying, distribution, or use of the contents of this message is strictly prohibited. If you have received this in error, please destroy it immediately and notify us at PrivacyAct(a)torchmarkcorp.com.

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CentOS 7.5 gui login root only
by isdtor 03 Jun '18

03 Jun '18

Taking first steps on CentOS 7 1804. Logging into the Gnome/Gnome classic desktop from gdm works only for root. For other users, the screen flashes and the login screen returns. KDE/Plasma login is successful but ends up with a black screen with mouse pointer while all desktop processes appear to be running. The CentOS 7 system is running in a CentOS6 KVM virtual machine, which may be the problem. I have no physical machine for testing right now. These logins work for non-root users when the system is built from the CentOS 7 DVD. The non-working installation stems from a kickstart install which essentially includes a much larger number of packages, some 6k vs. 2.5k from DVD install). Maybe there are conflicts, but I have not been able to isolate anything.

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LVM GUI in live CD
by Miguel Gonzalez 02 Jun '18

02 Jun '18

Hi, I am searching around and I can´t find any GUI LVM manager included in a Centos live CD. I am trying to resize a LVM partition in a Centos 6.9 machine with a live CD. If I need any other distro, It´s fine with me Thanks! Miguel

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Password recovery trick not working on CentOS
by Nicolas Kovacs 01 Jun '18

01 Jun '18

Hi, I remember back in the days, there was a neat trick to recover a lost root password, or more exactly, redefine a new password for root. 1. In the bootloader, boot the system with the 'init=/bin/bash' kernel argument. 2. Remount the root partition in read-write mode: # mount -o remount,rw / 3. Set the password for root: # passwd 4. Remount the root partition in read-only mode: # mount -o remount,ro / 5. Switch off the computer. I tried this out of curiosity on a CentOS 7 sandbox machine, and this doesn't seem to work anymore. I can boot to a 'bash' console and set the password OK. But this password doesn't seem to work on the subsequent normal boot. Anybody knows why this is so? Cheers, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Blog : https://blog.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32

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move LDAP service to new server
by Gary Stainburn 01 Jun '18

01 Jun '18

On my old Centos 7 server I had set up a LDAP database for user authentication by other services (the server locally uses normal PAM authenticatin). I set it up originally from a web page describing how to set up an LDAP server for use with MS Outlook clients (which never worked) Is there any (easy to follow) instructions anywhere to tell me how to back up this service and restore it onto a new one?

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Re: [CentOS] [CentOS-announce] CESA-2018:1318 Important CentOS 7 kernel Security Update
by Noam Bernstein 31 May '18

31 May '18

Hi all - should I be surprised to be receiving these notifications today when a newer version, 3.10.0-862.3.2, corresponding to https://access.redhat.com/errata/RHSA-2018:1629 appears to already be available from CentOS ‘yum update’ Installing: kernel x86_64 3.10.0-862.3.2.el7 updates 46 M Noam > On May 30, 2018, at 2:29 PM, Johnny Hughes <johnny(a)centos.org> wrote: > > > CentOS Errata and Security Advisory 2018:1318 Important > > Upstream details at : https://access.redhat.com/errata/RHSA-2018:1318 > > The following updated files have been uploaded and are currently > syncing to the mirrors: ( sha256sum Filename ) > > x86_64: > af10287508a7362f9c018b0e6c59ba7bc608260adff8bacbbd9ece097f74742b kernel-3.10.0-862.2.3.el7.x86_64.rpm > 044a2935ccb02d2dfcad72050d443faca89ca41cc0713a8188ea415e81feefe9 kernel-abi-whitelists-3.10.0-862.2.3.el7.noarch.rpm > 96b5ec7ac81ebb87b46745f3e363e5c0b5de3c71aeb9043c61dc09ba1d2f73b5 kernel-debug-3.10.0-862.2.3.el7.x86_64.rpm > c9543022f7d4d7c2b9e62dbbb3b7b1eb60a1149733be8e1f79bf91f3aebb93d3 kernel-debug-devel-3.10.0-862.2.3.el7.x86_64.rpm > ac64e0995558acf3874b2ccbdce8f3b8aae2b6d494256c4bf1ae093aec0f1c18 kernel-devel-3.10.0-862.2.3.el7.x86_64.rpm > 9f8d0640aaee8ae074d92c72da51f4f9c0eb0280d7cb27a4f84ad307ff3a9a62 kernel-doc-3.10.0-862.2.3.el7.noarch.rpm > 8bf0391255899698ef9da2b9b8f0bc7f12bd683d00dca21b1495342401409c47 kernel-headers-3.10.0-862.2.3.el7.x86_64.rpm > b2cf2333d02f582c8e39f6f3b72470ede6d1226c30d36ee4db264b2460f763fe kernel-tools-3.10.0-862.2.3.el7.x86_64.rpm > 9e1a49326b8abb3167ec5e047bef4ebbc805908e18740e34c80bbc6f89b63fa1 kernel-tools-libs-3.10.0-862.2.3.el7.x86_64.rpm > 470c6a6029fb88156f971d14a30543f64224efeb7be14b5eacf83be45a656290 kernel-tools-libs-devel-3.10.0-862.2.3.el7.x86_64.rpm > 58f967b393f7aabeec2ceba4f381efffea0a8bed2947c126519ba4ee771cf377 perf-3.10.0-862.2.3.el7.x86_64.rpm > a5fdba3a8ea30fec1298c121bf30a7d1e814bcfaec868c708c9d403cc838421f python-perf-3.10.0-862.2.3.el7.x86_64.rpm > > Source: > 6c7186a7c985cdac3abf640219cd10124494e900c22aafab163b95fe10b25b46 kernel-3.10.0-862.2.3.el7.src.rpm > > > > -- > Johnny Hughes > CentOS Project { http://www.centos.org/ } > irc: hughesjr, #centos(a)irc.freenode.net > Twitter: @JohnnyCentOS > > _______________________________________________ > CentOS-announce mailing list > CentOS-announce(a)centos.org > https://lists.centos.org/mailman/listinfo/centos-announce ____________ || |U.S. NAVAL| |_RESEARCH_| LABORATORY Noam Bernstein, Ph.D. Center for Materials Physics and Technology U.S. Naval Research Laboratory T +1 202 404 8628 F +1 202 404 7546 https://www.nrl.navy.mil <https://www.nrl.navy.mil/>

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Discuss May 2018