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 ->…
Mac OS X
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…
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…
OSX 10.9 Upgrade Issue
Issue: Get error message: "This copy of the Install OS X Mavericks application can't be verified. It may have been corrupted or tampered with during downloading." Then it could not…
Yum – Warning: RPMDB altered outside of yum … killed
Issue: Yum cannot proceed even though the Transaction Testing is passed. but after seeing a message: Warning: RPMDB altered outside of yum then waited for a while, it showed: killed.…