OS X 10.8, Mountain Lion

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6
votes
2answers
4k views

Disable inactive memory swapping

Background: OSX keeps some information in RAM that is no longer used, but was recently used. This is called inactive memory, and is intended to improve user experience by speeding up some actions: ...
19
votes
4answers
14k views

How to get the hand tool back in Preview.app in 10.8?

In Mountain Lion's Preview.app the toolbar was changed quite drastically. While I can see why they did it, I found that it misses the Hand tool that one can use to move enlarged documents around with ...
14
votes
1answer
3k views

Is it possible to always show hidden/dotfiles in Open/Save dialogs?

It is possible to show so-called dotfiles/directories like .git or files/directories that have the Hidden attribute in the Finder by running defaults write com.apple.Finder AppleShowAllFiles 1 ...
11
votes
4answers
7k views

Can a Mac's airport card run 802.11 N, G, B or A only?

Occasionally it's nice to hard code a wired connection network port to not auto negotiate and force things to be 100 half duplex even though a higher speed is configured and negotiable on the switch. ...
8
votes
6answers
776 views

Where can I find a comprehensive and detailed technical software manual for OS X?

Are there books written for OS X (particularly the most current version) like the hundreds of thousands written for Unix? I'd like to know about the command-line utilities and the locations of system ...
8
votes
6answers
4k views

Can Mountain Lion's Preview.app be configured to use Lion's highlighting colours?

The highlight function in the Mountain Lion version of Preview.app is now directly accessible from the toolbar, while the other annotation functions keep their usual location. The problem is that ...
4
votes
2answers
6k views

Can Apple Mail be optimized to perform well when I have 30k messages in my inboxes?

I have about 31,300 emails in 4 different inboxes in Mail. Sadly to say, it is extremely slow. Is there any tips or trips to optimize Mail? And no, I don't want to delete any, I need them for work.
22
votes
3answers
28k views

How to always show “Library” in the Finder its “Go”-Menu without holding a modifier key?

I often use the "Library" folder in my home folder ~/. The Library folder there (~/Library/) is shown (unhidden), and that is not the question. I would like to also always show the menu point ...
16
votes
3answers
22k views

Why are some Mail messages shown as empty with “This message has no content”?

Sometimes new messages come in and Mail (on OS X Lion and Mountain Lion) shows them as empty, with "This message has no content" in the preview column. The message is empty in the full message view ...
15
votes
2answers
3k views

How do I use AirDrop from the Terminal?

Is there a way to share a file over AirDrop via Terminal on Mountain Lion? How so?
13
votes
3answers
3k views

Remove shift key augmentation for Mission Control animation

I recently upgraded to Mountain Lion and all of a sudden my key bindings for Sublime Text 2 multi-selection editing are no longer working. Specifically, I had key bindings set up for ...
9
votes
1answer
1k views

Why are the alias so big in filesize in Mountain Lion?

I noticed the alias(es) that I create in Mountain Lion are very big in filesize (for example an alias to a folder is 5.8MB!) Compared to Leopard, they were just about 500KB. Why is this? and is ...
6
votes
13answers
70k views

How to get a complete list of all applications installed?

Using OSX 10.8.4., I am having a hard time finding a complete list of all software applications installed on my Mac. Of course, the Launchpad only shows the list of those that have an app shortcut ...
5
votes
2answers
19k views

Mount Linux NFS share on Mountain Lion 10.8.5

I am new to using Apple as main OS. I am used to fstab in Linux to keep the mounts for nfs. When I use Go to in Finder to mount nfs://serveripaddress/home/shared I get a permissions error. The below ...
2
votes
4answers
1k views

Mountain Lion sometimes hangs when mouse enters Dock – pointer is movable, but the MacBook Air seems otherwise frozen

I have a mid-2011 13" MacBook Air (MacBookAir4,2 with Intel HD Graphics 3000). Since installing Mountain Lion I sometimes encounter a problem when I move the mouse cursor over the dock to click ...
29
votes
2answers
117k views

What is Mobile Sync - Backup and why is it taking so much space?

I was checking my directory and found out that the Folder Backup in Library > Application Support > Mobile Sync > Backup, is taking 13GB of my Harddisk ... What is this and why is taking so much space ...
16
votes
8answers
2k views

What features from Lion will be lost when upgrading to Mountain Lion?

I know Mountain Lion has some cool new features that Lion did not have, but will it overwrite any of Lion's functionality?
10
votes
4answers
49k views

How do I install Mavericks now that Yosemite has been released?

I have a late 2009 iMac running Mountain Lion, I also have a Macbook Pro running Mavericks. I have been planning on installing Mavericks on the iMac, but now that Yosemite has been released, Mavericks ...
8
votes
1answer
11k views

Ruby 2.0.0 install via RVM: errors surrounding openssl

Using: Mountain Lion 10.8.2, RVM 1.18.15 Having trouble with, apparently, openssl when trying to install Ruby 2.0.0 via RVM: $ rvm install 2.0.0 ... Extracting openssl to ...
8
votes
1answer
4k views

Updating everything installed through Homebrew on Mountain Lion [closed]

After updating to 10.8 ‘Mountain Lion’ I’m wondering whether it would be vise to rebuild everything I have installed through the packaging system Homebrew (similar to MacPorts) to ensure all ...
7
votes
4answers
4k views

How I can unminimize windows from an application using a key combination?

Coming from the Windows world, I was initially used to using Cmd-Tab to switch between open windows. On OS X this switches between applications, so I had to learn to use Ctrl-` to switch between ...
7
votes
2answers
6k views

Why do I have repeated “Are you sure you want to open it?” messages when launching applications?

My Security settings are set to "Mac App Store and identified developers". I'm still getting this problem though I've allowed the app to run more than once as an Administrator. Specific apps that are ...
6
votes
3answers
13k views

How do I locate applications that drain my battery on a MacBook Pro?

I purchased a new Macbook Pro and have since downloaded a ton of applications and add ins. I think some of these apps are responsible for draining my battery too quickly. How do I identify what ...
6
votes
3answers
7k views

How to make the Backspace key to take me to the previous page in Safari 6?

Backspace/Delete ⌫ no longer works as a back button in Safari 6. How to make the Backspace key to take me to the previous page in Safari 6?
5
votes
1answer
6k views

What is trying to launch 'java' on my Mac OS X Mountain Lion [duplicate]

Possible Duplicate: Is there a way to determine what application wants Java installed? I recently installed OSX Mountain Lion and as you know, the default install removes any java VM, ...
4
votes
6answers
10k views

Time Machine stuck on “Preparing Backup”

I have a MacBook Pro from 2009. It came with OS X 10.6 (Snow Leopard) but I upgraded to 10.8 (Mountain Lion). A few days ago, I tried to backup my files on an external hard drive, like I have ...
4
votes
5answers
3k views

Can spotlight be reset when it misbehaves, is wrong or constantly indexing?

On my 4-month old mid-2012 MacBook Pro I observe that Spotlight seems to want to ALWAYS re-index. I frequently notice that the performance will get unbearably slow and I can hear the hard drive ...
2
votes
3answers
4k views

MacBookAir kernel_task at 300% and rising [duplicate]

I have a MacBookAir5,1 connected to a Thunderbolt Display. When it gets very hot, PID 0 "kernel_task" uses ever more CPU until reaching 340% and slowing the Mac down sufficiently to make me restart ...
2
votes
2answers
33k views

How can I re-run the initial Setup Assistant on Mountain Lion?

As described in my write-up on custom keyboard layouts, in some situations it can be useful to re-run the Setup Assistant (the app that you get when you start a new Mac for the first time, or do a ...
1
vote
1answer
3k views

How can I install Mountain Lion in a VMware Fusion VM?

I've read that the EULA now allows to install Mac OS X in a virtual machine, and I'd be interested in doing it. However, since I forgot to back up the Mountain Lion installation program before using ...
17
votes
3answers
18k views

How to change the default Mail account in Mountain Lion?

I have 2 mail accounts configured. When composing a new message, it will default to the account for the currently selected mailbox, which is fine. However, when no particular mailbox is selected (when ...
16
votes
3answers
15k views

what is com.apple.coresymbolicationd in caches?

Doing some cleanup on my Macbook Air with 128 SSD looking for big files to reduce space used. I found something named com.apple.coresymbolicationd that is 1GB in the library/caches folder I don't ...
12
votes
5answers
6k views

How can I dismiss the App Store banner in Notification Center without taking an action?

This is the notification that pops up from the App Store on Mountain Lion: As you can see, the only options are Details and Update. Most of these banners have a 'close' button, to dismiss the ...
8
votes
6answers
3k views

OS X Mountain Lion - Kernel Panic and Restart after Sleep

I have a mid-2009 15" MacMook Pro, with 10.8.2 installed. Periodically, after sleeping my machine, I open it and hit a kernel panic. The logs fail at the AppleIntelCPUPowerManagementClient kext, and I ...
8
votes
3answers
11k views

Install 2 different OS X versions on the same machine/hdd

OK, here's my situation : I am a developer needing to debug under different OS X versions I currently own 2 macs : a MacBook Pro and an iMac the iMac has Snow Leopard (10.6) on it - it came ...
7
votes
1answer
2k views

Why does it appear that I apparently “do not have access to Command Line Tools” in ML?

I just upgraded to Mountain Lion, and now gcc, make, g++, etc. are not found when trying to launch them in Terminal. So I went to Xcode Preferences, Downloads, and clicked "Install" next to Command ...
6
votes
2answers
3k views

Redirect traffic using PF along with Internet Sharing

The short version: How do I redirect all traffic from en2 port 80/443 to 127.0.0.1:8080 when I have enabled Internet Sharing in OS X Mountain Lion (10.8)? Some background: I am doing a master ...
6
votes
4answers
4k views

For a FileVault user of Mountain Lion: can I avoid the automated login, which normally follows unlock of the encrypted startup volume?

I have FileVault enabled with two users: AdminGuy OtherGuy. I want AdminGuy to: have the ability to unlock the HD, and therefore only he can enter a u/n + p/w at boot to start boot up have the ...
6
votes
3answers
8k views

How can I restart Finder when it keeps “stopping” an stopped copy process?

Every now and then, mostly with USB sticks, Finder decides to copy forever, either at the end of the copy process (i.e. the files are already copied), or at the very beginning. Stopping the process ...
5
votes
1answer
1k views

Paste and Match Style - Default?

I find that "Paste and Match Style" is more often useful than just "Paste" when I am copying text. Is there a way to make this the default behavior? The (long) keyboard shortcuts are also inconsistent ...
5
votes
1answer
8k views

Time Machine drive encryption going for 22 hours. Is it stalled?

I set up Time Machine in Mountain Lion by plugging in a newly formatted 500GB USB drive, selecting that from the Time Machine dialog, and checking the box to encrypt my backups. A window appeared that ...
5
votes
1answer
2k views

Mountain Lion Crashing while hibernating

I had one crash yesterday and one tomorrow on my iMac running mountain lion while the computer was hibernating. In both cases the computer restarted alone. The messa is always the same: mountain lion ...
5
votes
2answers
956 views

Disable saving to iCloud in Mountain Lion

Mountain Lion introduced a feature where you can save your documents to iCloud instead of local storage. I don't ever see myself using it, is there a way to disable this (but I don't want to ...
4
votes
1answer
2k views

How can I disable shift + control + scroll zoom in chrome?

I use ⌃ ctrl + ⇧ shift + ⇥ tab to move between tabs in Chrome, but if I scroll with the touchpad it'll zoom the page. This happens quite a lot and it's frustrating. Is there some way I can disable the ...
4
votes
2answers
3k views

Why does OS X now think I have two partitions on my external USB drive (plus random connection issue)?

I have an external USB drive that I have plugged into a USB hub, which gets unplugged from my computer about once a day. Most of the time I remember to unmount the drive before disconnecting so that ...
4
votes
1answer
1k views

Is there a way to auto switch wireless networks depending on signal strength?

I have a Linksys dual band router. Near the back of our house (which is where our computers are mostly located) only the G network really comes through so when I'm working in the front of our house, I ...
4
votes
3answers
2k views

How can I download something with display turned off (Ctrl+Shift+Eject)?

In Lion I could just press Ctrl+Shift+Eject to turn off display on iMac. In Mountain Lion it looks like this shortcut turns off whole computer. It looks like sleeping mode. So my downloads stop when ...
4
votes
2answers
4k views

Installing a Lion Vm within Mountain Lion

I have a few issues with Mountain Lion that mean I need to have occasional access to a Lion installation. I have bootable clones of my old Lion install before I upgraded, but sometimes I only need to ...
3
votes
4answers
7k views

Mac OS X 10.8 QuickLook Causing CPU & Temperature Spikes

I have consistently been having a problem with my computer overheating due to random processes using 100%+ CPU. Commonly the problem occurs with the process QuickLookSatellite-general, but it is not ...
3
votes
3answers
3k views

Why does my 3TB Seagate HD keep formatting as a Logical Volume Group

This is really annoying. I have a brand new Seagate 3TB 7200 RPM hard drive that I am trying to format/partition in Disk Utility. Every time I change any settings or erase the drive, it changes it to ...