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Finally I got hands around my blog (this one stlplace) and did the WordPress upgrade. I put off the upgrade in the past primarily due to my laziness: there is no automatic update due to I was running on WP 2.0.2. The upgrade itself is not too bad, I followed those two articles on Backup database and Run manual update. I used phpMyAdmin for the WP database backup. For the WP upgrade the only tricky part for me is:
“…Upload the individual files from the new wp-content folder to your existing wp-content folder, overwriting existing files. Do NOT delete your existing wp-content folder. Do NOT delete any files or folders in your existing wp-content directory (except for the one being overwritten by new files)…”
I know “directory overwriting” generally works on Windows system, but we are talking about UNIX (Linux to be precise). The command I used goes like this (in the blog root directory):
cp -r -u new_wp-content_dir .
(here -r means recursive for directories; -u means update)
I believe it did the trick, as I can run upgrade database afterwards. After that I enabled the necessary plugins. The only plugin stopped working is the ultimate warrior tags. The rest are fine.
Btw, I also added WPtouch plugin so that this blog works better on iPhone.
I found my old Xcode 3.2.2 can not handle block as it’s necessary to run Ray’s RSS reader example. Download the software from Apple, install, and found this “Base SDK missing” in the new Xcode. Did some google, the trick is to “use latest SDK” in the “project => build” setting. I noticed we can also build “older” targets by changing the target in “deployment target”. Obviously there is a limit as to how far we can go back (I have not checked that yet).
Btw, I found the iPhone 4 simulator looks cooler than iPhone 3 simulator 🙂