Ubuntu Login Prompt That Says Login Failed.

Accelerate Cinder Volume Imports in OpenStack By Avoiding Glance

If you鈥檝e ever had to export and move volumes from one OpenStack cloud to another, you may know the following process: converting a Cinder volume to a Glance image to allow you to download it so that the reverse process can be applied when importing it. This is obviously a laborious process, especially if there are a ton of volumes to port. I recently had to do a bulk import of more than 100 volumes in qcow2 format for a client migrating to our cloud....

March 4, 2024 路 2 min 路 Eugene de Beste
Ubuntu Login Prompt That Says Login Failed.

Recovering Cloud Virtual Machine Access without GRUB (QEMU/OpenStack)

Context A client reached out to me a little while ago to ask if it was possible to recover access to a VM that one of his clients use. This Ubuntu 22.04 based VM runs on our OpenStack cloud, powered by QEMU/KVM. The client鈥檚 client had made some modifications to /etc/ssh/sshd_config and subsequently locked themselves out of the machine. It鈥檚 important to note here that cloud instances (VMs) typically don鈥檛 include a default password set and rely solely on key-pair authentication via SSH....

March 3, 2024 路 6 min 路 Eugene de Beste

Installing Ubuntu Server 16.04 on Hardware Backed Software RAID1 (FakeRAID)

I encountered an issue booting Ubuntu Server 16.04 when installing it on a SuperMicro server that had been configured with Software RAID 1. The operating system install script would detect that a RAID environment was active and it would install correctly, but when booting into the newly installed system I would be presented with a blank screen and a blinking cursor. Grub wasn鈥檛 even loading. To solve this issue I booted into a live CD of Ubuntu 16....

March 16, 2018 路 1 min 路 Eugene de Beste