CentOS VM Client Can’t Boot Up
Issue VirtualBox client CentOS can't boot up with error message: [FAILED] Failed to start Virtual Machine and Container Registration Service. [FAILED] Failed to start Login Service. Solution Disable SELINUX config…
Centos7 Virtualmin Upgrade PHP7 MariaDB
This is my first blog after upgrading to WordPress 5.1 from ver.4.8. Yes, I never tried 5.0 as it's always risky to have a major upgrade to ver. x.0. The…
Cannot launch or remove iTunes from Mac High Sierra
Issue: when launching iTunes, it closed immediately after clicking the icon and appeared in half a second, then error screen appeared to ask for "ignore", "report", etc. Solution: Finder ->…
Mail Server Already Exists error iPhone iOS 11
Issue: When open an email box, error appeared on iPhone warning: Cannot verify Mail Server Identity. One solution for this problem is to delete that mail account on iPhone and…
iOS 11 incompatibility
Issue: After updating iOS from version to 11, there are some installed apps not ready for this version. The worst is that I stored all important passwords in an app…
Cannot Change Ownership on NFS Files
Issue: After moving mounted volumes from Qnap NAS to iMac as host with CentOS as client, the directory and file ownership cannot be changed to Apache at the client side. No matter…
VirtualBox VM Inaccessible on Mac
Issue: "The selected virtual machine is inaccessible. Please inspect the error message shown below and press the Refresh button if you want to repeat the accessibility check." After saving states…
Mac OS X Maverick Upgrade
Issue: Just bought a Wacom Intuos Draw CTL-690, and want to install a note taking app with drawing feature in iMac running OSX Mavericks, found a good one - MS…
Android Studio: Cannot Start AVD Manager
Issue: After installation of Android Studio, the Android Virtual Device (AVD) Manager cannot be started unless the running virtual machine (irrelevant to Android Studio deployment) in VirtualBox is shut down.…
OpenSUSE Boot Up Issue
Issue: OpenSUSE suddenly could not boot to GUI mode, but being kicked out to recovery mode with the CLI mode with the warning of something like no space to write…