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 ~~~
Read More...How to extract/unpack/uncompress the contents of the initramfs boot image on CentOS 7,8 ?
by Danila Vershinin, August 7, 2021
How to fix how to extract/unpack/uncompress the contents of the initramfs image on centos 7 and rocky linux 8?
Read More...How to list the number of packages in a repository using dnf repolist
by Danila Vershinin, August 6, 2021
How to fix in centos 7, `yum repolist` displays the number of packages in a repository.- on some rocky linux 8 instances, `yum repolist` or `dnf repolist` does not display the number of packages in a repository.
Read More...Rocky Linux 8: NFSv4 + fscache always writes to cache but never reads back from the cache
by Danila Vershinin, August 5, 2021
How to fix an nfsv4 mount with fscache enabled never reads back from the cache
Read More...[FIPS] ssh to RHEL6 server fails with message “ssh_dispatch_run_fatal: Connection to XXX port 22: invalid argument”
by Danila Vershinin, August 4, 2021
How to fix on a rocky linux 8 system with fips enabled, connecting to a rhel6 system fails, `ssh-v` displays the following message ~~~ […] debug1: ssh2_msg_kex_dh_gex_request(2048 <8192 <8192) sent debug1: got ssh2_msg_kex_dh_gex_group ssh_dispatch_run_fatal: connection to xxx port 22: invalid argument ~~~
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