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39
votes
6answers
10k views

App crashes, dock icon remains, can't reboot, yet no process in ps aux to kill

I've been encountering an extremely annoying problem since I upgraded to Yosemite. FCPX (but I've been having reports of this problem on other computers with finder.app and safari.app) sometimes will ...
31
votes
3answers
32k views

Creating System-Wide Keyboard Shortcut To Launch Applications [duplicate]

I recently switched from Ubuntu, and I was feeling very comfortable with using Ctrl + Alt + T to launch terminal. Can I assign Shift + Cmd + T to do the same thing in Yosemite? Specifically, I want a ...
22
votes
13answers
21k views

Start/stop internet sharing from a script?

Is there a way to start/stop internet sharing from the command line or maybe an apple script? The thing is that I move around my laptop between home and work. At one place I get wireless internet (...
50
votes
11answers
5k views

Is it generally advisable to get anti-virus software for Mac OS X?

Is it worth to buy an anti-virus software for Mac OS X? I heard both opinions like "it's not possible to get a virus on Mac OS X" and "Mac OS X is also vulnerable against virus... " Which is true? ...
19
votes
4answers
11k views

Which command controls the open file limits?

Which command / configuration file controls the open file limits on OS X? Is there a different command for OS X 10.5 / 10.6 / 10.7? The options I explore below are ulimit, sysctl, and launchctl "...
39
votes
5answers
9k views

Why is /tmp a symlink to /private/tmp?

Why is /tmp a symlink to /private/tmp on Mac OS X? In other words, why isn't /tmp just a regular directory, like on Linux or BSD? I understand how it works and I don't mind it, I'm just interested in ...
31
votes
10answers
39k views

USB-C Dongles killing Wifi on 2016/2017 MacBooks – Who’s to blame?

I recently switched from my beloved MacBook Pro Retina (Late 2013) i5 2.6/16/512 to MacBook Pro (2017) Non-TB i5 2.3/16/512. I purchased what from the build-quality looked like a good USB-C-to-...
24
votes
4answers
5k views

Macbook Pro Retina running at native resolution

A question I've had in my head since I first saw screenshots of the display preference pane on the new Retina MBP is this: Can it be made to run with what you could call a 1.0 UI scaling factor (same ...
59
votes
9answers
137k views

Can I share my iMac's internet to iPhone or iPad over USB?

I have an iMac, connected to the Internet via Ethernet, and an iPhone 4. I would like to share the iMac's Internet connection to my iPhone via the USB Cable (because my wife dreams of a wifi-less ...
27
votes
6answers
270k views

Can I downgrade to Mavericks after installing Yosemite (beta/developer preview)?

I have installed the developer preview for Yosemite. Huge mistake. Everything in my workspace is broken. I don't have any sort of backup image. I was wondering if I could re-download Mavericks and ...
4
votes
3answers
38k views

“Select CD-ROM Boot Type:” error during Windows install

Which version of bootcamp 4.x do I need to install Windows 7 (64 bit) on an iMac7,1 with Yosemite? Specs: 64 bit Core 2 Duo, 4GB, 16GB Flash, optical drive, Windows 7 install DVD Everything goes ...
38
votes
4answers
7k views

How can I prevent iPhoto from opening everytime I plug my iPad/iPhone?

How can I prevent iPhoto/Photos/Image Capture from launching everytime I plug in my iPad/iPhone?
6
votes
3answers
4k views

Install macOS Sierra on VirtualBox?

I’m trying to install macOS Sierra on VirtualBox, but can’t seem to make it work. For reference, here are the steps I took. Downloaded the Install macOS Sierra app from the App Store. Used the ...
13
votes
6answers
25k views

Can I plug two external monitors in to a MacBook Pro?

I'd like to use two external monitors for some excels, coding, email, not games or video content. Can someone please explain how I can go about using two external monitors with my MacBook Pro, and ...
9
votes
4answers
16k views

How to control fan speed in macOS Sierra?

After replacing the hard drive in my 2009 iMac 27", I noticed that the hard drive fan spins at maximum speed since the sensor cable is not plugged in. (The new SSD drive doesn't support it) To solve ...
3
votes
1answer
4k views

HFS+ invalid number of allocation blocks

Okay so a few days ago I wanted to install Ubuntu GNOME over regular Ubuntu and it gave me the option to automatically overwrite my Ubuntu installation (that I had on a separate partition from my OS X ...
12
votes
4answers
25k views

Completely synchronise multiple Macs

I actually have a Macbook Pro with Snow Leopard (I plan on upgrading to Lion). I may have to buy an Mac mini in order to have a full dual screen (external identical screens) layout (see my previous ...
10
votes
6answers
9k views

Downloading all photos from iCloud Photo Library without Photos app

I have an iCloud account with about 800 photos stored in iCloud Photo Library. I’m trying to move them to a Mac and delete them from iCloud in order to clear up space. I tried to connect my Mac to ...
7
votes
2answers
3k views

Battery Full Alert [duplicate]

Is it possible/necessary to configure a "Battery is full, remove charger notification" similar to the Low Battery Alert? I run macOS Sierra on my computer and wonder what software or scripts or ...
6
votes
2answers
5k views

Unable to boot up my Mac. Getting a flashing folder with a question mark

I currently own a 15 inch MacBook Pro with retina display model ( early 2013) . My Mac was working fine and all of a sudden my Mac won't boot up. I see a flashing folder with a question mark symbol on ...
6
votes
3answers
461 views

Weird free spaces estimation

On my MacBook Pro Retina late 2014 running OS X Yosemite, there's something weird going on. If i look at the storage tab in the "About my Mac" menu, I use only 67 gigabytes of storage but it says 151 ...
5
votes
1answer
7k views

How to connect a 3.5mm microphone (not amplified) to an iMac for recording?

I have a headset which has separate headphone and microphone jacks (both 3.5mm) that I would like to do some recording with. I initially thought, just plug headphone into headphone and micrphone into ...
4
votes
1answer
2k views

Find out if any files were exported from my MacBook

I left my laptop around with co-workers for around 30-40 minutes. Can I find out if any files were exported/opened from my laptop during that time? 11/5/17 3:12:09.000 PM syslogd[47]: ASL Sender ...
3
votes
1answer
2k views

New SSD problem

I've just installed a new SSD replacing an HDD in my old (late 2008) iMac. When I switched it on all I got on screen was a question mark. On the advice of my son I tried cmdR during switch on with ...
3
votes
1answer
1k views

Can I use Siri with these apps?

Could YouTube, Todoist, myEmail (fill in name app your looking for) be controlled/used with Siri? Could a third party iOS app be controlled by Siri?
404
votes
133answers
240k views

Got any tips or tricks for Terminal in Mac OS X?

One tip or trick per answer. My favorite is open . Opens the folder you're currently browsing in Finder. You can also pass URLs, images, documents or else to open. If you specify a program name ...
178
votes
107answers
54k views

What tiny thing in Lion makes you smile or has caught you off guard?

I would like to call for a place to list some little things that surprise you about Lion. There are so many articles and lists of all the new features with information overload, I would rather focus ...
197
votes
9answers
317k views

Can I get the CPU temperature and fan speed from the command line in OS X?

Is there a command I can run from the command line in OS X to get the current CPU temperature and/or the fan speed(s)? To be more specific, I'd like to be able to get the same info available in the ...
140
votes
11answers
296k views

How can I mount an ext4 file system on OS X?

Is there a safe, stable application for reading from and writing to ext4 file systems on Mac OS X? If not, what's the best way to access the contents of an ext4 file system on Mac OS&...
79
votes
12answers
231k views

This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading

Macbook Pro 13" 2015 with OS X Yosemite on board. I've been trying to install OS X El Capitan, but always get the following message: "This copy of the Install OS X El Capitan application can't be ...
83
votes
6answers
40k views

Make the Menu Bar never show while in Full Screen

Pretty much every application I use in full-screen (including Firefox, MacVim and the Terminal) have tabs on the top of the screen. The problem is, when I move my mouse to reach the tabs I'll often ...
75
votes
10answers
921k views

How do I type a ² or a ³ on an Apple keyboard (International English layout)?

I use ² and ³ a lot in e-mails. When using my Belgian Windows keyboard and a custom keymap it was easy to type this in Mac OS X as I assigned the appropriate key. Now I switched to a qwerty ...
50
votes
5answers
115k views

Allow applications downloaded from anywhere in macOS Sierra

In previous versions of the OS in the security pane, you are provided an option of: But in this version there is no option anywhere: Is there a way that I can turn on anywhere? (via Terminal maybe?)
91
votes
6answers
36k views

How can I activate buttons with just the keyboard?

Many user interface (UI) elements or dialog boxes have buttons. I would like to be able to activate a button with just the keyboard, without the mouse. How can I do this?
64
votes
19answers
47k views

Lock Screen Command One-Liner

I'm trying to find out whether there is any kind of equivalent command line one-liner which replicates the exact identical functionality of the 'Lock Screen' menu option available via the Keychain app ...
54
votes
6answers
22k views

Can I make a DIY Fusion Drive?

I have a Mac Mini with two drives: a 256GB SSD and a 500GB HDD. From what I've read, the new Fusion Drive does all of it's magic in software, using the Core Storage APIs. Can I get my setup to ...
58
votes
3answers
37k views

What scale or measure does Mavericks' and Yosemite's “memory pressure” adhere to?

Mavericks' (and also Yosemite's) Activity Monitor shows a new diagram, the memory pressure. Sadly, its help text only vaguely explains what exactly it measures. How is memory pressure calculated? ...
67
votes
3answers
44k views

What's the difference between Real, Virtual, Shared, and Private Memory?

The different columns in Activity Monitor are a little confusing
62
votes
6answers
66k views

How to get BSD FTP and Telnet back in 10.13 (High Sierra)?

There are some real problems with not having ftp and telnet present in 10.13 now as per Apple's dictate. Has anyone found a solid way to bring BSD ftp and telnet back to macOS vs using inetutils?
43
votes
5answers
18k views

Is there a way to hide certain apps from the cmd+tab menu?

Is there a way to hide certain apps from cmd+tab? The problem I'm facing is that I have some apps (like iTunes and of course Finder) always open. But when I'm working and switching between apps that ...
70
votes
5answers
204k views

“System” storage on macOS Sierra is 470GB!

My Mid 2012 MacBook Pro 13" says I suddenly ran out of Storage space. My Mac barely has any data and my upgrade to Sierra was a clean install. Nothing was ported from previous backups. If you see ...
24
votes
6answers
30k views

How to disable battery charging?

From the pmset man page: POWER SOURCE ARGUMENTS -g with a 'batt' or 'ps' argument will show the state of all attached power sources. […] Certain Apple battery calibration tools may ...
32
votes
4answers
11k views

Optimize macbook pro for internal SSD+HDD drives

I upgraded my MacBook Pro by replacing the SuperDrive with an SSD. I'm now using the SSD as the boot volume and have all my applications. My home folder is on the HDD. My question is how to best ...
22
votes
7answers
12k views

How can I expand the number of special characters I can type using my keyboard?

I am aware that when I press ⌥ or ⇧⌥ on my Mac, I can type a variety of special characters. I also know that I can insert special characters using the character palette. Is there a way to expand the ...
52
votes
4answers
33k views

How to show hidden files and folders in Finder?

I have a folder that starts with a dot . but am unable to display it in Finder. How can I say that for folder x, Finder should also display hidden files/folders?
42
votes
14answers
28k views

How do I create a custom ringtone for my iPhone?

The iPhone has a very limited selection of default ringtones. How do I create a new ringtone for my iPhone?
43
votes
4answers
16k views

Prevent Photos app on OSX from launching when plugging in device

The Photos app opens whenever I plug in my phone. How can this be prevented? I have seen many solutions for the old iPhoto app that involve changing the "Connecting camera opens" option, but the ...
62
votes
7answers
75k views

What is wired memory?

I'm trying to figure out what is using all of the memory in my Macbook Pro running OS X Lion. I have 8 GB of memory total. When I quit all active programs except Finder and Activity Monitor, then run ...
23
votes
4answers
563k views

How to install apps which require a newer version of iOS on a 1st gen. iPad?

I have a 1st generation iPad and when I download apps it tells me “this requires iOS 6.0 or later” but when I go to update it tells me it's fully updated? Why is this happening, and is there any way I ...
20
votes
5answers
84k views

How do I play a YouTube video in the background on my iPad?

I like to 'listen' to YouTube video in the background while I am surfing on my desktop. However, I cannot do this on the iPad as, as soon as I switch from YouTube video to the browser, the video ...

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