Discuss January 2022

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41 participants
36 discussions

Kernel live patching on CentOS Stream 9
by Gionatan Danti 14 Jan '22

14 Jan '22

Dear all, is kernel live patching working for CentOS Stream 9? I know that I can enable it via cockpit or the command line, but are kernel patch files really available or do they require an active RHEL subscription? Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

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HP Microserver Gen 10+ video RHEL8
by Jon LaBadie 14 Jan '22

14 Jan '22

I'm considering using an HP Proliant Microserver Gen 10+ with a Xeon processor. With the lower level Pentium processor, the CPU and chipset include Intel 610 graphics. But I can not find any info on any builtin video capability of the Xeon provisioned models. Has anyone used these models with Stream (8 or 9) and can describe the video capability? I'd like to do basic X-windows for the occasional GUI admin tool. Thanks, Jon -- Jon H. LaBadie jcu(a)labadie.us

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rd.lvm.lv on CentOS Stream 9 (first-boot failure)
by Gordon Messmer 14 Jan '22

14 Jan '22

I've install a CentOS Stream 9 system from a kickstart file that specified (among other things) several logical volumes: logvol / --fstype="ext4" --size=10240 --name=lv_root --vgname=VolGroup logvol /var --fstype="ext4" --size=4096 --name=lv_var --vgname=VolGroup logvol swap --fstype="swap" --size=2048 --name=lv_swap --vgname=VolGroup When that system rebooted, the kernel args did specify "rd.lvm.lv=VolGroup/lv_root rd.lvm.lv=VolGroup/lv_swap", but did not specify "rd.lvm.lv=VolGroup/lv_var", so boot failed because the filesystem required for /var couldn't be found. The dracut.cmdline documentation does record that it will only activate the LVs given as "rd.lvm.lv", but I'm confused about several things. 1: The system also includes a volume group named "BackupGroup" and that group activates on boot (post-dracut). Why are those LVs activated when rd.lvm.lv is specified? 2: Why didn't Anaconda add the "var" LV to the kernel arguments? 3: This seems like a change from earlier releases, but I can't find any documentation to that effect. Under CentOS 7, after dracut had finished, the remaining logical volumes in that group would be activated. Because they aren't, currently, libvirtd cannot start any of its guests until I manually activate the group. How can I restore the old behavior of activating all of the LVs on boot?

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Moving from mdadm raid 0 to single disk
by Alexandre Leonenko 12 Jan '22

12 Jan '22

Hey all, Hopefully a quick question. I'm going to move the filesystem of a raid 0 mdadm to a single disk. The filesystem is just a data drive, can I just dd if=/dev/md0 of=/dev/sdc ? Or should I rather rsync the files directly? Regards, Alex

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systemctl hoses eth port settings
by allan emord 10 Jan '22

10 Jan '22

Hi all, I recently added 2 eth ports to C7 machine via USB adapters. Set up devices with Settings - Network . While cables (and target devices) are installed, running `systemctl restart network` worked OK. If one of the devices loses connectivity (e.g. uplug eth cable) `systemctl restart network` will mix up the device assignments thereby losing connectivity to host. e.g. enp7s0, the PCI network card, gets set to parameters that belong to one of the USB adapters. This is not desired behavior. Is there something I have done incorrectly? I this normal behavior? I have looked at the scripts for if[up|down], and if run manually, works well to re-configure the enp7s0 interface but (apparently) systemctl does not use these scripts. Thanks for your consideration. Allan

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Is my ssh private key already unlocked?
by Robert Nichols 10 Jan '22

10 Jan '22

When I first ssh to a system, I am asked for the password to unlock the private key file. Thereafter, that key file remains unlocked, and subsequent ssh sessions will not prompt for a password. I can always re-lock the key file by running "ssh-add -D". In a script I have that runs sshfs to mount a remote directory, I want to re-lock that key file _unless_ it was already unlocked, i.e., if I sshfs asks for a password, I want to re-lock the key file immediately after the command is run. How can I determine ahead of time whether the key file is already unlocked? In the past (Centos 6) I could examine the output from "ssh-add -l" determine that. Now, "ssh-add -l" just shows the public key whether of not the private key has been unlocked. There is also no apparent way to see whether or not sshfs asked for a password. Suggestions? -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.

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printing on C8S
by Fred 08 Jan '22

08 Jan '22

OK, I give up. How do I configure a printer on Centos 8 Stream? I can't find any tools for doing that. further, there doesn't seem to be a cups executable (which should allow setting up a printer) though there ARE a bunch of cups packages installed. Anyone got any clues for me? Thanks in advance! Fred

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Re: [CentOS] Is CentOS-Stream-9-20211222.0 suitable for building for RHEL9
by Simon Matter 06 Jan '22

06 Jan '22

> On 1/5/22 05:06, Leon Fauster via CentOS wrote: >> Am 05.01.22 um 11:02 schrieb Simon Matter: >>> Hi, >>> I have to port/build quite a number of packages for upcoming RHEL9. I thought about starting to do so now on CentOS-Stream-9-20211222.0 in the >>> hope that I don't have to redo a lot of the work again later for the released RHEL9. >>> Does it sound like a good idea to start now or should I better wait a bit? >> I'm already doing that. Do just expect everything that also happened in EL8. Missing devel or sub packages. Striped down s/rpm macros that blocks building fedora packages directly. So, business as usual. BTW, some packages are not in streams anymore. This makes custom overlay >> repos a bit easier ... > I think you can build directly against the repos in the centos stream koji. > https://kojihub.stream.centos.org/kojifiles/ We're not using koji so I don't know how I could make use of these repos. I've done a number of the easier builds now and they went well. Now I'm trying to build a package which requires imake but I can't find it anywhere. I guess imake could be missing because the Xorg stuff is being built without it today? Does anybody know if imake is still used but not shipped or is it not used and built for EL9 anymore? Thanks, Simon

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Is CentOS-Stream-9-20211222.0 suitable for building for RHEL9
by Simon Matter 05 Jan '22

05 Jan '22

Hi, I have to port/build quite a number of packages for upcoming RHEL9. I thought about starting to do so now on CentOS-Stream-9-20211222.0 in the hope that I don't have to redo a lot of the work again later for the released RHEL9. Does it sound like a good idea to start now or should I better wait a bit? Thanks, Simon

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CentOS-announce Digest, Vol 201, Issue 1
by centos-announce-request＠centos.org 05 Jan '22

05 Jan '22

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2022:0003 Important CentOS 7 xorg-x11-server Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 4 Jan 2022 19:22:29 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2022:0003 Important CentOS 7 xorg-x11-server Security Update Message-ID: <20220104192229.GA29860(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2022:0003 Important Upstream details at : https://access.redhat.com/errata/RHSA-2022:0003 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 99b661c96e07cf126304451e9aa41291a49a8f3fc0d29d14dabcfb939072586f xorg-x11-server-common-1.20.4-17.el7_9.x86_64.rpm c9dc78f6c0e94a26844ea7d1aa7fbde598ea704957ae7b657c4a63c822bd9f21 xorg-x11-server-devel-1.20.4-17.el7_9.i686.rpm e58d4578833550c574d220588395dd2ff7fdabaa1bd5e48a04c31911a6caca8a xorg-x11-server-devel-1.20.4-17.el7_9.x86_64.rpm 1c3887c7641e7d177a4556fa5d66b74cca92bdb865265509120154804c5ddeab xorg-x11-server-source-1.20.4-17.el7_9.noarch.rpm 2bfd2b5c14b17c0e7510240064a110b33c36b377955ad7f1245005118f4dc0aa xorg-x11-server-Xdmx-1.20.4-17.el7_9.x86_64.rpm 5ef15604ff8baa8611a443eb38e948c0561633200d60d93d6ec70aafe375876e xorg-x11-server-Xephyr-1.20.4-17.el7_9.x86_64.rpm 822adbeedf758cb1febec29ff177d207923b6e3c24749077ca4f3a684d593d1c xorg-x11-server-Xnest-1.20.4-17.el7_9.x86_64.rpm d222b43a6c9a83d63e9c529e8e528b248aa0f77b4b23e5e7256d32c1a64bee44 xorg-x11-server-Xorg-1.20.4-17.el7_9.x86_64.rpm de6d7edb575cf2c912b54349020bb0c64b19b18869c865f5da30ef088e3cad85 xorg-x11-server-Xvfb-1.20.4-17.el7_9.x86_64.rpm 0e2842a9ef72de0a39b188244266ec36bb5efee89dbbb26d2d9b8832fdb44b78 xorg-x11-server-Xwayland-1.20.4-17.el7_9.x86_64.rpm Source: aa1a69ecf74614ebb737bde9186deba20abe9762fb94a74fb703cdbd4d750eb1 xorg-x11-server-1.20.4-17.el7_9.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)libera.chat Twitter: @JohnnyCentOS ------------------------------ Subject: Digest Footer _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce ------------------------------ End of CentOS-announce Digest, Vol 201, Issue 1 ***********************************************

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how to clear out /var/cache?
by Fred 04 Jan '22

04 Jan '22

Is it safe to just remove files from /var/cache on a running system, or is there a correct procedure for doing that? Mine has hit over 3 gigs, making it one of the larger directories in /, which is running low on space. I've hit all the low-hanging fruit I can find and now I come to things like /var/cache, and I don't know what to do about such. Thanks in advance! Fred

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Discuss January 2022