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…
Operating Systems
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 ->…
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…
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…
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…
Demystify iCloud Sync
Issue: Uploaded keynote file to iCloud through safari, after a day the iPad still could not see it when clicking the "+" sign at top left corner of Keynote in…
Ugly Font Appearance in Linux
Issue: Suddenly found that the Serif fonts appeared in Linux is uglier than those appeared on Mac OS X. Solution: Configure Desktop by enabling Use sub-pixel rendering, and choose Slight…
Laser Printer for Linux
Issue: Installed Linux driver for Brother DCP-L2540DW printer driver, then found out that printing for one page or double-sided page is fine, but it always shows error "ERROR NAME; memoryfull"…
Windows XP Backup Utility
Issue: Suddenly cannot backup using Windows XP built-in backup utility. Error: "Error returned while creating the volume shadow copy: 80042301". Solution: Use suggestion from Adi Oltean as follows: There are…
CentOS Not Bootable after Install Kernel-devel rpm
Issue: OS unbootable and show the following message: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Solution: At waiting to boot loader click any key…