leapp upgrade fails with KeyError on persistentnetnamesconfig/actor.py
by Danila Vershinin, August 17, 2021
How to fix while attempting an upgrade from centos 7 to rocky linux 8 via leapp, the `persistentnetnamesconfig` actor fails with a keyerror
Read More...Is DNF available for Rocky Linux?
by Danila Vershinin, August 16, 2021
How to fix when will `dnf` replace yum in rhel?- is `dnf` available in rocky linux 8?
Read More...SSSD becomes unresponsive while continuing to run useradd continuously in batches.
by Danila Vershinin, August 15, 2021
How to fix sssd becomes unresponsive while continuing to run useradd continuously in batches. for example: ~~~ # for i in `seq 1 4500`; do useradd-s /sbin/nologin testuser$i; done ~~~- the following error was frequently seen. ~~~ the memcache was not invalidated by nss responder. ~~~
Read More...In Rocky Linux 8, SSSD fails to start with an error “Could not start TLS encryption. error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol”
by Danila Vershinin, August 14, 2021
How to fix sssd unable to work with `ldaps`.- sssd fails to start with an error “could not start tls encryption. error:1425f102:ssl routines:ssl_choose_client_version:unsupported protocol” ~~~ may 24 09:56:57 testsystem sssd[be[ldap]][1234]: could not start tls encryption. error:1425f102:ssl routines:ssl_choose_client_version:unsupported protocol ~~~
Read More...RHCOS installation on baremetal server can not find installation disk
by Danila Vershinin, August 13, 2021
How to fix bare metal installation of rhcos fails on hardware with `sas2008` raid controller due to unavailability of installation disk.
Read More...Does Red Hat provide independent cri-o runtime engine rpm for Rocky Linux 8 through Base or AppStream?
by Danila Vershinin, August 12, 2021
How to fix does red hat provide independent `cri-o` runtime engine `rpm` for rocky linux 8 through base or appstream?
Read More...Why the value of kernel.pid_max is seen as 4194304 on systems of Rocky Linux 8?
by Danila Vershinin, August 11, 2021
How to fix after updating to rocky linux 8.2, the value of pid_max after every reboot is seen as 4194304, why? ~~~ # sysctl-a|grep pid_max kernel.pid_max = 4194304 ~~~- if centos 7 is installed on the same server, the value is seen as `32768` for same number of cpu’s.- on rocky linux 8, journal logs show the pid_max value as `32768`, but how the value gets changed to `4194304`. ~~~ kernel: pid_max: default: 32768 minimum: 301 ~~~
Read More...Would vsftpd 3.0.3 be supported on CentOS 7?
by Danila Vershinin, August 10, 2021
How to fix would vsftpd 3.0.3 be supported on centos 7?
Read More...Rocky Linux 8: ifup fails with “Error: unknown connection ‘/etc/sysconfig/network-scripts/ifcfg-ensX'”
by Danila Vershinin, August 9, 2021
How to fix if use `nm_controlled=no` in ifcfg file, unable to bring up interfaces with ‘ifup’ command.
Read More...The command at always outputs “Warning: commands will be executed using /bin/sh” in Rocky Linux 8
by Danila Vershinin, August 8, 2021
How to fix the command `at` outputs as follow: ~~~ # /usr/bin/at now < < < job.sh 20210521132925161641804289383 8469308861616420210521132925 warning: commands will be executed using /bin/sh job 13 at mon may 24 10:36:00 2021 ~~~
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