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Apr
14
comment Can't move files to a folder in Finder
This doesn't sound like a FileVault-related problem, more like file permissions got messed up somehow. Are there any particular files/folders are you having trouble with? Also, please run the Terminal utility, enter ls -leO, and add the output as an edit to your question (and use the the "{}" button to format it as code, so we can see the formatting).
Apr
14
answered Can I restore a system upgrade from a Time Machine backup?
Apr
14
comment Can I restore a system upgrade from a Time Machine backup?
Actually, it does back up the full system by default; but the recovery interface in the Setup Assistant/Migration Assistant doesn't do a full system restore.
Apr
14
comment Mac drive not showing up on resetpassword screen
@AliBZ If you don't have a valid password or the FileVault recovery key (or have stored the key with Apple), there's no way to get at the data on your hard disk. That's pretty much the purpose of FileVault.
Apr
11
comment -bash: /Users/[me]/.rvm/scripts/initialize: No such file or directory
Do you have a backup? If not, and you need any of the files from your home directory, SHUT THE COMPUTER DOWN IMMEDIATELY, then use some other computer to research data recovery options.
Apr
10
answered How to prevent user from moving a custom app to Trash?
Apr
10
comment How do I unlock a .plist file in /private/var/db/receipts so that I can change it?
Why are you trying to edit something in the receipts folder? Its purpose is to provide a record of what was installed on the computer,and if you edit its contents they won't be accurate anymore. You can't change the actual install history; why are you trying to change the records about what happened?
Apr
9
revised Recovery HD Is not showing up. Is it because of FileVault?
Added command to show the volume label trickery
Apr
9
answered Recovery HD Is not showing up. Is it because of FileVault?
Apr
7
comment Grey screen on an apple
Is it new enough to be Intel-based? If so, try an SMC reset. For an Intel iMac, you unplug the power cord for 15 seconds, then plug back in and wait another 5 seconds, then try to power it up.
Mar
31
comment My RAM was bad (“three beeps” bad) until shuffled
I'll throw in a recommendation for Memtest OS X. I haven't had to use it recently, but in the past I've had it spot flaky RAM that had passed all of the other test tools I tried (including Apple Hardware Test).
Mar
28
comment Startup disk not correctly identified?
It looks to me like 10.6 is only seeing the Yosemite recovery volume, not the main volume. Are you using FileVault volume encryption on the Yosemite system? If not, you might just need to turn off Core Storage management on the Yosemite volume.
Mar
24
comment Booting up gets hung up at around 50%
Taking a picture of the output (with a camera phone, or whatever's handy) is probably easier than trying to write it down, especially if some scrolls off screen.
Mar
18
comment Mac OSX : How to password protect an .app or other folder from deleting/moving by user/admin/root
@CommaToast Wow, I had no idea securelevel=1 had such far-reaching effects (and I wonder how much of that applies to OS X -- I may have to do some testing). Locking /private and /etc should take care of my worry about replacing /private/etc, but I don't see a reasonable similar way to lock e.g. an item in /Library/LaunchDaemons. Locking a system against an attacker with root access is really really hard, and I think at some point you have to just call it good enough. BTW, Apple does have a backdoor to reset firmware PWs, they just require proof of ownership before unlocking.
Mar
18
comment Mac OSX : How to password protect an .app or other folder from deleting/moving by user/admin/root
@CommaToast it depends on exactly how it's loaded. If it's via an item in /Library/LaunchDaemons it'd be by path not a fileReferenceURL or alias. Also, your opponent could replace /Library/LaunchDaemons and disable it that way, or replace /private/etc and hence remove the securelevel setting on next reboot.
Mar
18
comment Mac OSX : How to password protect an .app or other folder from deleting/moving by user/admin/root
@Omkar I've never written a kernel extension, so I can't offer much advice, except to say that if you aren't particularly familiar with the kernel, your extension has a good chance of creating security problems.
Mar
18
comment Mac OSX : How to password protect an .app or other folder from deleting/moving by user/admin/root
I can think of a couple ways to bypass this. First, while the file may be locked, it'd still be possible to rename the directory it's in and replace it with a near-duplicate (just missing the "locked" file). To prevent this, you'd need to lock at least every other directory on its path... and locking / or any of the top-level folders under it would likely cause trouble. Second, I'd think a kernel extension would be able to bypass the part of the filesystem that enforces the schg flag, and root can load extensions.
Mar
9
comment How does disk utility work while the system is live? (e.g. partitioning/resizing the OSes partition)
Nope, it works fine when booted from the volume you're resizing. The reason you get an error in recovery mode is that in that case you're running from a hidden volume right after the main volume, and resizing the main volume requires that the recovery volume be moved. Resizing the current startup volume is supported, but moving it is not. That's why it fails in recovery mode but works when started normally.
Mar
7
comment All downloaded files cannot be opened as they are 'damaged and should be moved to the Trash'
To get more information about the problem, open the Console utility and report any messages that appear as you try to open files. Also, open the Terminal utility, enter the command "spctl --assess -vv " (including the space at the end, but not the quotes around it), then drag a downloaded file from the Finder into the Terminal window (this'll paste in the file's path), then reselect the Terminal window and press return. Let us know what it prints.
Mar
7
comment All downloaded files cannot be opened as they are 'damaged and should be moved to the Trash'
Since it's happening on all files, it's not the same problem described for JOSM.app. On the other hand, it's possible there's a problem with the system's security policy database, and switching gatekeeper off & back on might rebuild the relevant part of that...