Unable to start Virtual Machine with libvirt, unsupported machine type

by Danila Vershinin, September 14, 2021

How to fix after moving a virtual machine (vm) from a rhel 6 hypervisor to a rocky linux 8 hypervisor, starting the vm fails with the error: libvirt.libvirterror: internal error: process exited while connecting to monitor: qemu-kvm:-machine rhel6.2.0,accel=kvm,usb=off,dump-guest-core=off: unsupported machine type


How to make a custom GDM background screen for CentOS 7.7?

by Danila Vershinin, September 13, 2021

How to fix how do we make a custom background for the gdm login screen?


Mouse and Keyboard freezes during ISO install on VMware

by Danila Vershinin, September 12, 2021

How to fix during iso install of rocky linux 8, the anaconda screen freezes during the install of rocky linux 8 on vmware vsphere.


cloud-init fails to resize partition: growpart doesn’t work when LANG is not en_US

by Danila Vershinin, September 11, 2021

How to fix growpart doesn’t work as intended when lang is customized- cloud-init doesn’t resize root partition when lang is not en_us- rhel cloud images with non-default locales are failing to resize root partition


How to troubleshoot TFTP Error code 2 on RHEL

by Danila Vershinin, September 10, 2021

How to fix on a default installation of tftp server, using `get` to retrieve files fails with `error code 2: xxxx`- attempt to retrieve a file using the relative path fails with `error code 2: only absolute filenames allowed`. ~~~ # tftp localhost tftp> get testfile error code 2: only absolute filenames allowed ~~~- attempt to retrieve a file using the absolute path fails with `error code 2: forbidden directory`. ~~~ tftp> get /var/lib/tftpboot/testfile error code 2: forbidden directory ~~~


EPEL powered by Cloudflare CDN. Fix your sanity

by Danila Vershinin, September 9, 2021

A simple recipe against a disaster. Here’s to make EPEL repository faster, by leveraging Cloudflare CDN


Why to use NFS storage with podman on Rocky Linux 8 ?

by Danila Vershinin,

How to fix why to use nfs storage with podman on rocky linux 8?


Does the java process have SELinux policy defined in RHEL?

by Danila Vershinin, September 8, 2021

How to fix does the java process have a selinux policy defined in rhel?- does red hat provide a custom selinux policy for java?


Yum displays system not registered warning in RHUI based clients

by Danila Vershinin, September 7, 2021

How to fix yum update in rhui based clients shows system not registered.- how to remove registration warning in rhui systems?- disable subscription manager repositories in rhui based systems.- the yum command displays warning message while listing repositories in on-demand cloud instances which are fetching updates from rhui server. ~~~ # yum repolist updating subscription management repositories. unable to read consumer identity this system is not registered to red hat subscription management. you can use subscription-manager to register. repo id repo name rhui-rhel-8-for-x86_64-appstream-rhui-rpms rocky linux 8 for x86_64- appstream from rhui (rpms) rhui-rhel-8-for-x86_64-baseos-rhui-rpms rocky linux 8 for x86_64- baseos from rhui (rpms) ~~~


Teaming LACP slave not getting added – Loop callback failed with: Cannot allocate memory

by Danila Vershinin, September 5, 2021

How to fix i’ve configured 2 team lacp interfaces both consisting of 2 ports using networkmanager. after reboot, every interface is up with only 1 port in it.