Tag Archives: OS X


CrashPlan.app somehow make its app folder not immutable, so that sometimes it causes problem when deleting it from Time Machine backups.

I am somehow having problem on El Capitan 10.11 beta that local Time Machine backups are taking all my spaces. So I disabled it but have problem emptying the trash. And it is CrashPlan.app.

This is the command to use:

> chflags noschg CrashPlan.app # this removes system immutable flag

> chflags nouchg CrashPlan.app # this removes the user immutable flag

In my case I used chflags -R noschg/nouchg .Mobilebackup.trash

Finally got my SSD space back.

Finally fixed my OS X Lion Spotlight and Mail full-text search

I have been suffering from mainly Mail.app unable to search full-text of my emails for a couple of months. I also recently noticed that Spotlight is not searching my PDFs in my user directory. But it can find other files. I tried to fix the Mail full-text search problem numerous times, but it did not work, such as by simply reset Spotlight indexes.

Today I finally fixed it by following instructions here. Basically, you have to boot into recovery mode and open terminal, type in “resetpassword”, select your main user, and instead of changing password, select reset ACL at the bottom.

After reboot that did not immediately solve my problem. So I deleted “com.apple.spotlight*” and “com.apple.systemuiserver” from ~/Library/Preferences. Also, I tried some other commands from Terminal, which I tried before, such as hdutil -E -i off/on ~/

See detailed discussion here. Note that “on/off” above means that you turn off and then turn back on.

Anyway finally it solved my problem. I think it is a combination of a few causes. My user folder permission was definitely kind of broken. But now I am so used to Sparrow Lite email client, I am not sure whether I want to go back to Mail.app.