Discuss January 2021

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95 participants
49 discussions

Memory vs. Display Card
by Rick 28 Oct '25

28 Oct '25

Since memory has become quite cheap lately I decided to move from 2 GB to 6. When I installed the memory every thing was fine until I went to run level 5. At that point the screen turned to garbage and the system froze. Is there a way to fix this so I can use the memory I bought? Do I need a new display card? Current hardware: Intel D975XBX2 Motherboard VGA compatible controller: ATI Technologies Inc RV505 [Radeon X1550 64-bit] -- http://www.spinics.net/lists/

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SSD for Centos SWAP /tmp & /var/ partition
by Keith Roberts 03 Sep '25

03 Sep '25

Has anyone actually used a SSD in a Centos setup? My little experiment with a s/h WD drive for /tmp and SWAP partitions kicked the bucket on Wednesday, when the poor WD drive caught the click-of-death. It was a s/h drive to start with and lasted about 4 months. But that was without the /var/log/ partition being written to it, as I mounted that back onto /var/log from the original drive. So I had to install another (WD) drive, and repartion it and rebuild my RPM package database, from the backed-up Packages file. That seems to be all OK now. I'm wondering if it would be a good idea to use a new SSD for moving all the disk i/o to, that Linux likes to do so often. Plus putting SWAP onto a decent SSD should speed things up somewhat. Here's a short video of a laptop fitted with a SSD drive booting macOS, compared to a similar laptop booting from the standard HDD. The laptop with the SSD boots and loads some apps in 28 seconds. The other one takes twice as long. http://eshop.macsales.com/shop/SSD/OWC/Mercury_Extreme_Pro_6G/?utm_source=t… Kind Regards, Keith Roberts ----------------------------------------------------------------- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] -----------------------------------------------------------------

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Issues booting centos7 [dracut is failing to enable centos/root, centos/swap LVs]
by Yannis Milios 01 Feb '25

01 Feb '25

Hello, I'm having a strange problem booting a new centos7 installation. Below some background on this. [I have attached the tech details at the bottom of this message] I started a new CentOS7 installation on a VM, so far all good, o/s boots fine. Then I decided to increase VM disk size (initially was 10G) to 13G. Powered off the VM, increased the vhd via the hypervisor, booted from CentOS livecd, selected "recover my centos installation". Then I used the following sequence of commands to make the new vhd size "visible" to the o/s ... - ran fdisk /dev/sda and deleted partition 2. (This is the LVM partition where the o/s is stored. The first partition is /boot [xfs] partition *non lvm*.) - created a new partition with same starting sector as before deleting it, but a different ending sector (to reflect to the increased space). - set partition type to 8e (lvm), saved settings and exit. - ran pvresize and lvresize to make new space visible to the o/s.All good, I can see the space increase on 'lvdisplay centos/root'. - ran 'mount /dev/mapper/centos-root /mnt/root' to temporarily mount the o/s partition. - ran 'xfs_growfs /mnt/root' to resize the o/s fs to the new size. It was successful and I could actually chroot to the o/s and verify new disk size. - rebooted and tried to boot from hdd this time. Grub menu shows up and loads default kernel (3.10.0-862.9.1.el7.x86_64). - after initial kernel boot up process, booting continues to initrd and then it's where the problem starts... - looks like dracut has issues locating/enabling /dev/mapper/centos-root (lv) and as a result it cannot boot to the 'real' root fs (/). - while in dracut shell, I execute the following command sequence: 1. lvm lvchange -ay /dev/centos/root 2. lvm lvchange -ay /dev/centos/swap 3. ln -s /dev/mapper/centos-root /dev/root 4. exit ...and the o/s boots fine...so looks like the pv,vg,lv is detected properly while in initrd, but somehow dracut has difficulties enabling the root,swap LVs ? - While in o/s, I rebuild initrd by using: 'dracut -f -v -a lvm' Note, I have to use '-a lvm' as for some reason, if don't, the lvm utils (lvm,lvm_scan) are not being included to the initrd, not sure why this happens. After rebooting, same thing happens, I have to manually boot the system via dracut shell. I'm a bit stuck at this point, any clues what I'm doing wrong in here ? As I previously said, this is a new installation, so I could simply reinstall the whole thing, but I would rather try to find out some answer to why is this happening ... :-) [curiosity] Some additional details: ================== I've attached /run/initramfs/rdsosreport.txt file [generated while in inird] here: https://privatebin.net/?fdc4052c0c402884#gdB/QYR3IeR55SxUbjfrkZPQfJ7jMxiUxq… o/s ver=CentOS Linux release 7.5.1804 (Core) [root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 13G 0 disk ├─sda1 8:1 0 500M 0 part /boot └─sda2 8:2 0 12.5G 0 part ├─centos-root 253:0 0 11.5G 0 lvm / └─centos-swap 253:1 0 1G 0 lvm [SWAP] [root@localhost ~]# cat /etc/default/grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rd.shell rhgb" GRUB_DISABLE_RECOVERY="true"

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MATE 1.20 test build for CentOS 7 available
by Greg Bailey 14 Oct '21

14 Oct '21

Hi everyone, There's been discussions in the past about updating MATE RPMs in EPEL-7: https://bugzilla.redhat.com/show_bug.cgi?id=1436260 https://lists.centos.org/pipermail/centos/2019-August/173154.html (and lots of others...) As a proof-of-concept, I've written some scripts that clone specific commits from the Fedora master branches, and then runs a tool to re-apply RPM scriptlets that are required by EL7 but removed from the Fedora .spec files. The scripts are available at: https://github.com/gebailey/mate-rpms/tree/master/1.20/el7 There's also instructions there if you want to try upgrading to MATE 1.20 w/o rebuilding them yourself. If these packages work for others, perhaps we can revisit the idea of updating the epel7 branches of the Fedora git repos and submitting an official update. There's nothing here (yet) about building MATE 1.22 (which might require a newer gcc for EL7), or building anything on CentOS 8, but thought the CentOS 7 users might find this helpful. -Greg

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Intel/64 CentOS VM running on a Mac M1?
by Lists 04 Feb '21

04 Feb '21

My Dell Precision M3800 running Fedora works great but is really starting to show its age, and I'm thinking about getting a new Mac M1-based laptop as it would really be useful for Video production. But I really need to have a IA64 CentOS 7/8 VMs running locally for development as I'm often on the road and flaky Internet makes it a necessity to keep productivity up. I've been unable to officially confirm that VMWare/ Parallels/VirtualBox intend to support IA64 based OS's and it *needs* to be an exact (VM) copy of production so I can trial environments and builds prior to roll out. Calling around, I actually got ahold of a sales staff at Parallels who assured me (in broken India-accent English) that "of course all OS will supported when the trial complete" but given that I wasn't sure that he really understood my question I remain uncertain. Anybody here have any more information than I do?

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luks encrypted - tell at boot to skip/ignore it - how?
by lejeczek 01 Feb '21

01 Feb '21

Hi guys. How to tell grub/kernel to ignore, skip either all or a specific block device which is luks-ecrypted - would anybody know? I have a box (kvm) which had a "secondary" luks-encrypted disk which now is detached and Centos just hangs @boot waiting for that disk. many thanks, L.

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Samba setup
by Robert G. (Doc) Savage 31 Jan '21

31 Jan '21

I'm following https://www.linuxbabe.com/redhat/set-up-samba-server-on-centos-8-rhel-8-for… to set up Samba 4.12.3-12 on my Storinator fileserver running CentOS 8.3. I am trying to share out /tank/Windows/ as a Samba share: # ls -al /tank total 61 drwxr-xr-x. 6 root root 7 Dec 26 10:43 Backups drwxr-xr-x. 6 root root 6 Dec 4 22:47 Repos drwxrwxrwx. 2 doc doc 4 Dec 28 14:01 VMs drwxrwxrwx. 2 root root 2 Jan 17 17:04 Windows My /etc/samba/smb.conf file is set up as follows: # testparm Load smb config files from /etc/samba/smb.conf Loaded services file OK. Server role: ROLE_STANDALONE Press enter to see a dump of your service definitions # Global parameters [global] printcap name = cups security = USER idmap config * : backend = tdb cups options = raw hosts allow = 192.168.0 ... [public] comment = public share, no need to enter username and password guest ok = Yes path = /tank/Windows read only = No When I try to map network drive from my Windows 10 PC using the graphical File Explorer, it asks me for my username and password. It doesn't accept my password. When I try to map it at the CMD cli, I get: C:\> net use S: \\192.168.1.20\public\ System error 67 has occurred. The network name cannot be found. Could this be a network browsing problem in Samba? What have I missed? --Doc Savage Fairview Heights, IL

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Re: [CentOS] Samba setup
by Robert G. (Doc) Savage 30 Jan '21

30 Jan '21

On Fri, 2021-01-29 at 04:40 +0000, Strahil Nikolov wrote: > I know from experience that you need to decide how you control access > and you got 2 options: > > - Linux directory is set to 777 and all control is in samba > - Linux directory is set as if unix user will access it and you use > the sam uid/gid for both client and server accounts (AD, FreeIPA, > LDAP) > > What is your settings right now ? > > Best Regards, > Strahil Nikolov Strahil, 777 and ownership of /tank/Windows is nobody:nobody. It's actually an empty directory right now. Not using AD/FreeIPA/LDAP. --Robert Savage Fairview Heights, IL > > > On Thu, Jan 28, 2021 at 7:57, Robert G. (Doc) Savage via CentOS > > <centos(a)centos.org> wrote: > > On Tue, 2021-01-19 at 17:18 +0100, Götz Reinicke wrote: > > > > > > Anything in the samba logs? May be SELinux/Firewall issues? > > > > Götz, > > > > Unfortunately, no. > > > > The nmbd log verifies that the fileserver's samba service is the > > local > > master browser for WORKGROUP on both eth0 and virbr0. > > > > [2021/01/17 19:02:22.190795, 0] > > > > ../../source3/nmbd/nmbd_become_lmb.c:397(become_local_master_stage2 > > ) > > ***** > > Samba name server LIONSTORE is now a local master browser for > > workgroup > > WORKGROUP on subnet 192.168.1.20 > > ***** > > > > [2021/01/17 19:02:22.191085, 0] > > > > ../../source3/nmbd/nmbd_become_lmb.c:397(become_local_master_stage2 > > ) > > ***** > > Samba name server LIONSTORE is now a local master browser for > > workgroup > > WORKGROUP on subnet 192.168.122.1 > > ***** > > > > The samba smbd log simply reports the connection denials: > > > > [2021/01/17 23:07:40.304626, 0] > > ../../lib/util/access.c:371(allow_access) > > Denied connection from 192.168.1.30 (192.168.1.30 > > > > There's nothing in the SELinux logs for that date. > > > > I checked firewall-config on the storage server and verified that > > the > > samba service is allowed (but not samba-client or samba-dc). > > > > Is there a really comprehensive setup checklist available for > > setting > > up samba on CentOS? The partial how-tos I've been able to find are > > obviously not enough. I'm looking for completer smb.conf setup, > > firewall settings, required services, directory permissions, > > accounts, > > and anything else that's required. I'm running up against very > > unhelpful roadblocks that seem to indicate a critical permissions > > problem but nothing specific. > > > > V/R > > --Doc Savage > > Fairview Heights, IL > > > > _______________________________________________ > > CentOS mailing list > > CentOS(a)centos.org > > https://lists.centos.org/mailman/listinfo/centos

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Telegram on CentOS 7
by H 29 Jan '21

29 Jan '21

Is anyone running Telegram on CentOS 7? I see that it seems to be available as a snap and also in the getpagespeed repository. I try to avoid snap apps but am not familiar with the latter repository. Does anyone have experience with either source for the program?

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How do I download RHEL 8.3 with free license and free subscription for my production servers?
by Turritopsis Dohrnii Teo En Ming 29 Jan '21

29 Jan '21

Subject: How do I download RHEL 8.3 with free license and free subscription for my production servers? Good day from Singapore, I am referring to the following news articles. Article: CentOS is gone—but RHEL is now free for up to 16 production servers Link: https://arstechnica.com/gadgets/2021/01/centos-is-gone-but-rhel-is-now-free… Article: Red Hat’s Disruption of CentOS Unleashes Storm of Dissent Link: https://www.enterpriseai.news/2021/01/22/red-hats-disruption-of-centos-unle… How do I download Red Hat Enterprise Linux 8.3 with free license and free subscription for my production servers? When I visited Red Hat's official website, I don't see any page or any option to download RHEL 8.3 with free license and free subscription. Please advise. Thank you very much. Mr. Turritopsis Dohrnii Teo En Ming, 42 years old as of 28 January 2021 Thursday, is a TARGETED INDIVIDUAL living in Singapore. He is an IT Consultant with a System Integrator (SI)/computer firm in Singapore. He is an IT enthusiast. -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

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Discuss January 2021