Categories
Belekas OpenStack TripleO Trumpi

openstack cli baremetal interface list

list interfaces External Links https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.0/html-single/director_installation_and_usage/index#performing_network_introspection_for_interface_information https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.0/html-single/director_installation_and_usage/index#provisioning-virtualized-controllers-using-RHV-driver < virtual machines for controllers

Categories
Kompai Paskaitos Trumpi

LVM copy LV to LV

Cloning LV to mirror Add /dev/vdc if you want to copy to a separate Physical device, yes you need to have it in your VG… Split mirror Split mirror to other PV External Links http://www.voleg.info/lvm2-clone-logical-volume.html

Categories
Belekas Fun Linux install Linux tarnybos Paskaitos

Install CentOS Linux 8 and similar

Everything here is not mandatory, but nice to have, at least for me 🙂 Partition layout External links https://tldp.org/LDP/Linux-Filesystem-Hierarchy/html/index.html

Categories
Fun OpenStack Paskaitos TripleO Trumpi

Build and set root pass for TripleO introspection and overcloud-full.qcow2 image

Build image Please keep in mind, that in the middle of C8 repo filenames were changed… and some package names… so if it fails, double check if all is good. Also I have enabled PowerTools (to help it find rubby, or some libs for rubby) and other openstack-ussuri-release repos… Ok, once everything is built, let’s […]

Categories
Belekas Trumpi

mount KVM used LVM on host

Identify VM which FS you need to mount on host. virsh list –all If that VM is on, maybe you can scp from there? If no, better poweroff VM. identify your VM used LV, or just check it: virsh domblklist vm01 Create a temp LVM to have your host VG identified: lvcreate -L 1M -n […]

Categories
Trumpi

Jumbo Frames or 9000 MTU ping test

Mac OSX: ping -D -s 8184 [destinationIP] On Linux: ping -M do -s 8972 [destinationIP] On Windows: ping -f -l 9000 [destinationIP] External Links https://blah.cloud/hardware/test-jumbo-frames-working/

Categories
Belekas

systemctl

Categories
Belekas OpenStack Trumpi

cloud-init

External Links https://en.opensuse.org/Kubic:MicroOS/cloud-init https://en.opensuse.org/Portal:MicroOS/cloud-init

Categories
Fun Trumpi Uncategorized

CentOS 8.1.1911 dvd iso size

I really like CentOS8 image size:

Categories
Belekas OpenStack

setting up your image for a cloud using cloud-init

Currently, some links on how to create a cloud image. https://cloudinit.readthedocs.io/en/latest/topics/examples.html https://cloudinit.readthedocs.io/en/latest/topics/network-config-format-v1.html#more-examples https://www.lisenet.com/2017/centos-7-server-hardening-guide/ https://rharmonson.github.io/cos7inst.html https://access.redhat.com/discussions/664843 https://ask.openstack.org/en/question/63589/centos-7-password-issue-for-guest-image-kindly-suggest/ https://ask.openstack.org/en/question/60803/any-openstack-centos-image-with-a-set-password-i-can-use/