Discuss July 2021

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69 participants
39 discussions

Old CentOS 6.3 grub.conf
by Jerry Geis 28 Jul '21

28 Jul '21

I am trying to "add" an entry to grub.conf on CentOS 6.3 - and change the default=0 to default=1 # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You do not have a /boot partition. This means that # all kernel and initrd paths are relative to /, eg. # root (hd0,0) # kernel /boot/vmlinuz-version ro root=/dev/sda1 # initrd /boot/initrd-[generic-]version.img #boot=/dev/sda default=1 timeout=5 splashimage=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-279.el6.x86_64) root (hd0,0) kernel /boot/vmlinuz-2.6.32-279.el6.x86_64 ro root=UUID=09337d96-de39-43f1-99c2-8a6a1fadd465 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet initrd /boot/initramfs-2.6.32-279.el6.x86_64.img title Boot Other root (hd0,0) kernel /boot/vmlinuz initrd /boot/initrd I then run "grub-install /dev/sda" and reboot. If I cursor down - my new title is present - but the default is still the first title. What did I miss ? Thanks, jerry

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heads up: stream8 cloud-init rebase 20 to 21
by Leon Fauster 26 Jul '21

26 Jul '21

FYI and everyone on C8S: cloud-init does run on deployed cloud vm's anymore succesfully after update (it was rebased from 20. to 21.). Fix: before rebooting run "cloud-init clean" -- Leon

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Folio Infobase
by J Martin Rushton 26 Jul '21

26 Jul '21

Does anyone know any way to read .nfo files from Folio infobases. The best suggestion I've seen so far is to run up a VM with Windows 98 on it, does anyone know where I can get a copy of that! BTW, these are not the .nfo files used to describe scenes. -- J Martin Rushton MBCS

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yum quiet not really quiet anymore?
by Gionatan Danti 24 Jul '21

24 Jul '21

Hi all, I noticed that "yum -q" (or "dnf" -q) on CentOS 8 is not really quiet anymore. For example (notiche the "upgraded" line): [root@localhost cron.d]# yum upgrade -y -q Upgraded: python3-perf-4.18.0-305.10.2.el8_4.x86_64 While yum historically had issue with the quiet option [1], this specific issue seems new to me. Do you have any suggestion (short of redirecting stdout to /dev/null)? 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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OT: firefox question
by Valeri Galtsev 24 Jul '21

24 Jul '21

Dear Experts, My question is OT, as it is related to firefox, not CentOS system per se. Even more: my firefox runs on FreeBSD workstation. But I figured this list have largest likelihood of having experts in firefox (as well as on other things), so... My firefox behavior changed after one of recent updates.. When one logs in to website that is locked using web password (e.g., set in .htacess/.htpasswd in apache), one gives username/password once. Then firefox remembers that while firefox is running, and you don't have to give credentials (though authentication does happen behind the scenes all the time since). But not anymore for me at least on my (FreeBSD) workstation: in the morning I discover firefox (though it had not been restarted) asks yet again credentials to websites I have been logged to. As if firefox purges credentials to websites after some period of time (or inactivity on those websites). This stared happening not long ago after one of updates firefox is known to release annoyingly often (as in: mozilla foundation forgot the meaning of the word "release" which means well debugged code some time about decade ago...). I tried to find relevant setting in GUI preferences to no avail (maybe it is just me?), and hope, experts know deeper lying preferences, and may point me to relevant one. All in all, I'm forced back onto my pursuit for replacement for firefox browser... Thanks a lot for all your answers. And my apologies for rant (which I was not able to separate due to my frustration...). Valeri -- ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++

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Difference between CentOS Linux and CentOS Stream
by Kaushal Shriyan 23 Jul '21

23 Jul '21

Hi, I am confused between CentOS Linux and CentOS Stream as per https://www.centos.org/download/. Please guide me on which one I need to use in the production environment. Is there a difference between CentOS Linux and CentOS Stream? Thanks in advance and I look forward to hearing from you. Best Regards, Kaushal

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Annoyances with sound
by mark 23 Jul '21

23 Jul '21

Hi, folks, Running C7, updated the beginning of this month. KDE, I go to the start menu->multimedia. and select kmix, the pretty cursor bounces for a while, then apparently ends with nothing running. Nothing in .xerrors. I try selecting audacity - which I don't trust, given that the last time, weeks ago, that I ran it from the command line, after about 5 min, it hung my system (16G RAM, Core I-7) so hard I had to power cycle. From the start menu... I get a popup "an error has occured." What's going on here? mark

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CentOS-announce Digest, Vol 196, Issue 4
by centos-announce-request＠centos.org 23 Jul '21

23 Jul '21

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-2021:2725 Important CentOS 7 kernel Security Update (Johnny Hughes) 2. CESA-2021:2784 Important CentOS 7 java-11-openjdk Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Thu, 22 Jul 2021 13:52:55 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2021:2725 Important CentOS 7 kernel Security Update Message-ID: <20210722135255.GA22110(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2021:2725 Important Upstream details at : https://access.redhat.com/errata/RHSA-2021:2725 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: e07580dc20cee29ddae2c26b7d4782a6e7671477d7f4ae210d2cef6cc71555cb bpftool-3.10.0-1160.36.2.el7.x86_64.rpm 91d2cf4d7a40fe66ba14583d4d5f045850fefc8b26b7e0adc2634f5ec9f9a775 kernel-3.10.0-1160.36.2.el7.x86_64.rpm 6ce4b480a292b7fa51c31777377a1711c2537597c5cf02d8aa14b345321b67bf kernel-abi-whitelists-3.10.0-1160.36.2.el7.noarch.rpm 1cd93bcccbab328b508e869ff3ceeaa30e1ab5ac781b7a6c3b91207832226025 kernel-debug-3.10.0-1160.36.2.el7.x86_64.rpm 5ec120d1c66453ab1a85e5107b0b4457686f595cf2e8dfc5ca04adcec4f0ade0 kernel-debug-devel-3.10.0-1160.36.2.el7.x86_64.rpm ba5a53ea9bd2aff2765fd9fc38a3f75ecd5d3e617e1c2cb85f6a9a793063506c kernel-devel-3.10.0-1160.36.2.el7.x86_64.rpm 28f85ca5b6e7c2b1e3ab7c4b31675583e8a72c18188f86f288a9a9bc046a202c kernel-doc-3.10.0-1160.36.2.el7.noarch.rpm 68cfd2b5e2aa6b9bad7a4040def6ccec2aa6ca31c6acf4758e98b507e8efc105 kernel-headers-3.10.0-1160.36.2.el7.x86_64.rpm 53ebea1b387c7333eb49334b5bf8e867d5307742f502d7d40091abe8eb42387b kernel-tools-3.10.0-1160.36.2.el7.x86_64.rpm c3571b20ed80af5bcdad26c4ffded5902a413e69a9f36e66ea22eb7f0b7343be kernel-tools-libs-3.10.0-1160.36.2.el7.x86_64.rpm d0f3c1d37d812e6fbf2b4e853fb66fd0ffe2a908b0bd0749ea1f99b53198ad71 kernel-tools-libs-devel-3.10.0-1160.36.2.el7.x86_64.rpm cc99796988903240582ca2234451a6b7eaa5f9534e910f4f9838cbd024cc7b0a perf-3.10.0-1160.36.2.el7.x86_64.rpm d1779b88b2029c7b3cd102334127e7013a0a71479581fd2f04f0d23bbc8a0463 python-perf-3.10.0-1160.36.2.el7.x86_64.rpm Source: e82932562eb31affee526927b3cbc2280750983a88182a0fcc49e511e6836691 kernel-3.10.0-1160.36.2.el7.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Thu, 22 Jul 2021 13:56:57 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2021:2784 Important CentOS 7 java-11-openjdk Security Update Message-ID: <20210722135657.GA22487(a)bstore1.rdu2.centos.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2021:2784 Important Upstream details at : https://access.redhat.com/errata/RHSA-2021:2784 The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: a2e3eec180d90a42cea830a8b5f0fa6890394a9b51d4349667c8010da5d2d418 java-11-openjdk-11.0.12.0.7-0.el7_9.i686.rpm f8d118dd0c38e6be586da71c24bb8639d30d388d9b57e276ec52b9ac2f649ead java-11-openjdk-11.0.12.0.7-0.el7_9.x86_64.rpm c1a1ba3ae8f745008a0b7e5c0e4663241db1a386d16bd54eef846e125686ceba java-11-openjdk-demo-11.0.12.0.7-0.el7_9.i686.rpm 708f19a2413ea0ae0ab9a7619a05c06675c69004d477b56b71ac6ec988ee1cc4 java-11-openjdk-demo-11.0.12.0.7-0.el7_9.x86_64.rpm 1a762e2d8882a0c051d0a322eb97ba3c2fbdb843e16699bb702cecd284f238fa java-11-openjdk-devel-11.0.12.0.7-0.el7_9.i686.rpm 5b9c35a49f05bdae1d6d9ae13688adb2f1aa9eed15604ea80e3126af3ad89c77 java-11-openjdk-devel-11.0.12.0.7-0.el7_9.x86_64.rpm 155a01df2abb9e5b0463d2bbe0314d3147245d1540cc0e5026de16abc670d0e6 java-11-openjdk-headless-11.0.12.0.7-0.el7_9.i686.rpm f1402f59f4309e9a2ad497a9699c098b61381170de7f600a6a7636db589400d5 java-11-openjdk-headless-11.0.12.0.7-0.el7_9.x86_64.rpm 49275f52aa1c71edc688e6802a1f2c8b136594807077f4aa90e4e2686edd8ddb java-11-openjdk-javadoc-11.0.12.0.7-0.el7_9.i686.rpm f3c1504a0f9e8be3e261212092e89009d8b01f3fe0f1804ed10e767846e87d26 java-11-openjdk-javadoc-11.0.12.0.7-0.el7_9.x86_64.rpm d17d23e9f3e2cd89c98f84ba07345a6c51f1dc3d67f5d52d483e6f2ed2d93751 java-11-openjdk-javadoc-zip-11.0.12.0.7-0.el7_9.i686.rpm 4c7a4b1402ce62b471994dd364f3e883167ad5ba8ebba01d67f8ceee2f63d6a5 java-11-openjdk-javadoc-zip-11.0.12.0.7-0.el7_9.x86_64.rpm 2596d8e58b7977e350ac45b39a8c22507bf5f23a48e5c5af3025b81016622b58 java-11-openjdk-jmods-11.0.12.0.7-0.el7_9.i686.rpm b346f29da69c21241a449decf0f47b1117502c6f136b70a23a24f1438e919766 java-11-openjdk-jmods-11.0.12.0.7-0.el7_9.x86_64.rpm f544bc64d6a690d2e5853b042cb5a8c7eb50879dacd1acf3c3eca69966d25370 java-11-openjdk-src-11.0.12.0.7-0.el7_9.i686.rpm c55fbad2b511346ebf2a848c75861a87c98b38738226ac74429144324281ef52 java-11-openjdk-src-11.0.12.0.7-0.el7_9.x86_64.rpm 8f21403b3615c8a3c67833bcb49d11b4c3b80d768a6bdba42abe5d2b299d9cb3 java-11-openjdk-static-libs-11.0.12.0.7-0.el7_9.i686.rpm 8319e904c4b86f6892579492778456a31dcdbb29d4f7b62060dba26486be2a85 java-11-openjdk-static-libs-11.0.12.0.7-0.el7_9.x86_64.rpm Source: 31ba75ab61265b2d9377e08747ee05ef445f4fb160a5d4e4f4d2d1b1bcb78b56 java-11-openjdk-11.0.12.0.7-0.el7_9.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net 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 196, Issue 4 ***********************************************

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CentOS8 nouveau errors
by Bill Gee 21 Jul '21

21 Jul '21

I am running the stream version of CentOS 8 on a system that hosts a bunch of VirtualBox guests. Recently, like about a month ago, a problem started showing up. When working at the console, the system is almost completely unresponsive. In a terminal session, any key that you press might show up a minute later. Any mouse movement might show up a minute later. About every ten seconds the screen switches to a completely different display for maybe a few tens of milliseconds and then switches back. This happens so fast it is almost subliminal. The log fills with tens of thousands of messages per day that look like this: Jul 21 07:21:06 vmhost2 kernel: Hardware name: Supermicro C7SIM-Q/C7SIM-Q, BIOS 1.2a 06/02/2017 Jul 21 07:21:06 vmhost2 kernel: Workqueue: events_unbound nv50_disp_atomic_commit_work [nouveau] Jul 21 07:21:06 vmhost2 kernel: RIP: 0010:nv50_dmac_wait+0x1e1/0x230 [nouveau] Jul 21 07:21:06 vmhost2 kernel: Code: 8d 48 04 48 89 4a 68 c7 00 00 00 00 20 49 8b 46 38 41 c7 86 20 01 00 00 00 00 00 0 0 49 89 46 68 e8 d4 fc ff ff e9 76 fe ff ff <0f> 0b b8 92 ff ff ff e9 ed fe ff ff 49 8b be 80 00 00 00 e8 b7 fc Jul 21 07:21:06 vmhost2 kernel: RSP: 0018:ffff9ab3c2077d60 EFLAGS: 00010282 Jul 21 07:21:06 vmhost2 kernel: RAX: ffffffffffffff92 RBX: ffff9ab3c2077d60 RCX: 0000000000000000 Jul 21 07:21:06 vmhost2 kernel: RDX: ffffffffffffff92 RSI: ffff9ab3c2077ca0 RDI: ffff9ab3c2077d40 Jul 21 07:21:06 vmhost2 kernel: RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffffc0365fd0 Jul 21 07:21:06 vmhost2 kernel: R10: 0000000000000006 R11: ffffffffc03733c0 R12: 00000000fffffffb Jul 21 07:21:06 vmhost2 kernel: R13: ffff8c141b820b68 R14: ffff8c141b820ba8 R15: ffff8c1144d21e00 Jul 21 07:21:06 vmhost2 kernel: FS: 0000000000000000(0000) GS:ffff8c142fd80000(0000) knlGS:0000000000000000 Jul 21 07:21:06 vmhost2 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 21 07:21:06 vmhost2 kernel: CR2: 000055e49fe63ef0 CR3: 00000001a5410000 CR4: 00000000000006e0 Jul 21 07:21:06 vmhost2 kernel: Call Trace: Jul 21 07:21:06 vmhost2 kernel: base507c_update+0x2f/0x70 [nouveau] Jul 21 07:21:06 vmhost2 kernel: nv50_disp_atomic_commit_wndw.isra.16+0x5f/0x80 [nouveau] Jul 21 07:21:06 vmhost2 kernel: nv50_disp_atomic_commit_tail+0x669/0x9b0 [nouveau] Jul 21 07:21:06 vmhost2 kernel: process_one_work+0x1a7/0x360 Jul 21 07:21:06 vmhost2 kernel: worker_thread+0x30/0x390 Jul 21 07:21:06 vmhost2 kernel: ? create_worker+0x1a0/0x1a0 Jul 21 07:21:06 vmhost2 kernel: kthread+0x116/0x130 Jul 21 07:21:06 vmhost2 kernel: ? kthread_flush_work_fn+0x10/0x10 Jul 21 07:21:06 vmhost2 kernel: ret_from_fork+0x35/0x40 Jul 21 07:21:06 vmhost2 kernel: ---[ end trace 43122b13e20cf558 ]--- Jul 21 07:21:08 vmhost2 kernel: nouveau 0000:01:00.0: DRM: base-0: timeout The daily logwatch report has thousands of lines like this: --------------------- Kernel Begin ------------------------ WARNING: Kernel Errors Present WARNING: CPU: 0 PID: 131209 at drivers/gpu/drm/n ...: 201 Time(s) WARNING: CPU: 0 PID: 131356 at drivers/gpu/drm/n ...: 450 Time(s) WARNING: CPU: 0 PID: 132285 at drivers/gpu/drm/n ...: 3 Time(s) WARNING: CPU: 0 PID: 15274 at drivers/gpu/drm/no ...: 1245 Time(s) WARNING: CPU: 0 PID: 15808 at drivers/gpu/drm/no ...: 144 Time(s) WARNING: CPU: 0 PID: 62 at drivers/gpu/drm/nouve ...: 1080 Time(s) WARNING: CPU: 1 PID: 131209 at drivers/gpu/drm/n ...: 336 Time(s) WARNING: CPU: 1 PID: 131356 at drivers/gpu/drm/n ...: 828 Time(s) WARNING: CPU: 1 PID: 132030 at drivers/gpu/drm/n ...: 18 Time(s) WARNING: CPU: 1 PID: 132285 at drivers/gpu/drm/n ...: 12 Time(s) WARNING: CPU: 1 PID: 15274 at drivers/gpu/drm/no ...: 903 Time(s) WARNING: CPU: 1 PID: 15808 at drivers/gpu/drm/no ...: 108 Time(s) (repeat for 2 megabytes of text) With all VB guests stopped, htop shows CPU usage in the range of 1% or less. Sessions opened by ssh run normally. Sessions opened to a guest with xrdp run normally. Guests do not report any errors in their log files. Where do I begin to troubleshoot something like this? Thanks - ======== Bill Gee

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local privilege escalation in kernel and systemd
by Kenneth Porter 21 Jul '21

21 Jul '21

<https://www.bleepingcomputer.com/news/security/new-linux-kernel-bug-lets-yo…> Two related bugs involve mounting a very long path. The kernel bug requires passing a 1 GB path string, while the systemd bug involves an 8 MB path that overflows its stack. Technical details here: <https://blog.qualys.com/vulnerabilities-threat-research/2021/07/20/sequoia-…> <https://blog.qualys.com/vulnerabilities-threat-research/2021/07/20/cve-2021…>

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