Zabbix Database Error: No such file or directory After unattended-upgrade
After unattended-upgrade automatically ran on one of my Zabbix servers, the Zabbix frontend started showing a confusing database error. When […]
Ubuntu, Zabbix
Ubuntu
Jenkins, Ubuntu
Jenkins Node Reports Low Temporary Space on a Low-Memory Ubuntu 26.04 Server
After upgrading one of my Jenkins servers from Ubuntu 24.04 to Ubuntu 26.04, I noticed that the Built-In Node was
Ubuntu
Fix PuTTY Right-Click Paste Not Working in vi on Ubuntu 26.04
When I connected to an Ubuntu 24.04 server using PuTTY, I could open vi, enter insert mode, and paste text
Ubuntu, ZFS
Install Ubuntu 24.04 Server on ZFS Root Mirror (RAID-1) via Autoinstall
In my previous post, I used: This time we’re going one step further: Install Ubuntu 24.04 on ZFS root with
Ubuntu, ZFS
Install Ubuntu 24.04 Server on ZFS Root via Autoinstall
This is a tiny delta to my previous guide (HTTPS + Nginx + SSI already working). The focus here is
Ubuntu
Install Ubuntu 24.04.2 with NoCloud Autoinstall over HTTPS
What is Autoinstall (Ubuntu 24.04)? Autoinstall is Ubuntu Server’s unattended installation in Subiquity. You provide a YAML answer file (user-data)
AOSP, Ccache, Ubuntu
Making AOSP’s nsjail Work with AppArmor (Ubuntu 24.04)
TL;DR On Ubuntu 24.04 (kernel 6.8) with kernel.apparmor_restrict_unprivileged_userns=1, our AOSP 16 (also applicable to 15 and similar versions) builds showed:
AOSP, Ubuntu
Fixing nsjail “Permission denied” on Ubuntu 24.04 when Building AOSP
TL;DR If your AOSP build fails with: it almost always means your system is blocking unprivileged user namespaces under AppArmor.
Ubuntu
Initialize & Persistently Mount an External USB Disk on Ubuntu Server 24.04
— THIS GUIDE ERASES THE ENTIRE TARGET DISK — Data-destructive warning: The steps below wipe the whole disk (wipefs -a,
KVM, Ubuntu
Increase a KVM qcow2 Disk Offline (Ubuntu 24.04 + LVM)
Goal: grow /var/lib/libvirt/images/rbe-b.qcow2 offline on the host, then expand LVM inside the Ubuntu 24.04 guest. TL;DR (commands only) Host (VM