Blog

Notes from the field

Database automation, DevOps, cloud, and the fixes I wish I'd found sooner.

2026

Vagrant Up Throws Undefined Method Error

undefined method `exists?' for class File (NoMethodError)

Jan 21, 20261 min read

Self-service CI/CD pipeline for database deployments with Liquibase & Azure DevOps

Self-service CI/CD pipeline for Oracle database deployments with Liquibase & Azure DevOps

Jun 24, 20252 min read
Liquibase Checksum Error

Mar 9, 20252 min read
Build Error at Setup Ruby Atage of Build and Deploy on Actions

Build Error at Setup Ruby Atage of Build and Deploy on Action

Feb 15, 20251 min read

How-to: Flashback Data Gaurd Database

Flashback a Data Gaurd database

Jun 10, 20193 min read
OEM 13c on RHEL6

Oracle Enterprise Manager installation on Red Hat Enterprise Linux 6

Apr 25, 20193 min read
Disable THP on RHEL7

Disable Transparent Huge Pages on Red Hat Enterprise Linux 7

Apr 16, 20191 min read
Oracle 18c GI & RDMS on RHEL7

Silent installation of Oracle 18c Grid Infrastructure and Database on Red Hat Enterprise Linux 7

Mar 24, 20194 min read