AppleJack
AppleJack
1.6

4.5

AppleJack free download for Mac

AppleJack1.6

13 July 2010

Troubleshooting/repair utility.

Overview

Developer's note: AppleJack is no longer supported and has not been developed or supported for years and years. I would not recommend it being used on any systems after Mountain Lion.

AppleJack is a user friendly troubleshooting assistant for Mac OS X. With AppleJack you can troubleshoot a computer even if you can't load the GUI, or don't have a startup CD handy. AppleJack runs in Single User Mode and is menu-based for ease of use

Using AppleJack, you can repair your disk, repair permissions, validate the system's preference files, and get rid of possibly corrupted cache files. In most cases, these operations can help get your machine back on track. The important thing is that you don't need another startup disk with you. All you need to do is restart in Single User Mode (SUM), by holding down the command and s keys at startup, and then typing applejack, or applejack auto (which will run through all the tasks automatically), or applejack auto restart (which will also restart the computer automatically at the end of the process)

What's new in AppleJack

Version 1.6:
  • Snow Leopard compatibility [feature 2845796] (Thanks again to Steve Anthony)
  • Improved limits on output from syslog to STDOUT
  • Simplified startup of services on Leopard and Snow Leopard
  • Fixed bug in creation of user account lists in Snow Leopard where system accounts would show up
  • S.M.A.R.T. status verification is now being done in the expert mode. I still want to implement this using smartmontools, but for now diskutil will do.
  • Blessing of Mac OS X System folders on attached volumes is now possible. This is a primitive bless, ie, it does not create boot files, but simply blesses the chosen System folder and (optionally) sets it to be used for startup on next launch

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How would you rate AppleJack app?

214 Reviews of AppleJack

See all
5
Neal
10 February 2020
Version: 1.6

Most helpful

I've not had cause to run AJ for quite a few years. I did contribute a small donation, years and years ago, and I am pleasantly surprised to find that in 2020 it is still valid for certain restoration tasks. However, I'm here because I cannot complete a Catalina upgrade from Mojave or blank disk without Disk Utility, First Aid telling me there are directory faults. My Question for today is: Will Applejack work with Catalina's new separatist disk structure ?
(2)
5
Neal
10 February 2020
Version: 1.6
I've not had cause to run AJ for quite a few years. I did contribute a small donation, years and years ago, and I am pleasantly surprised to find that in 2020 it is still valid for certain restoration tasks. However, I'm here because I cannot complete a Catalina upgrade from Mojave or blank disk without Disk Utility, First Aid telling me there are directory faults. My Question for today is: Will Applejack work with Catalina's new separatist disk structure ?
(2)
artie505
21 January 2019
Version: 1.6
Even though Applejack appears to still clear caches, I'm skeptical about the job it's doing, because Apple has added, deleted, and moved caches over the years. I'm sure it's doing something, but I doubt that it's what people think it's doing.
(2)
artie505
21 January 2019
Version: 1.6
Although Applejack's website links to SourceForge for v 1.7, SF delivers v 1.6. Anybody know what's up with that?
(1)
Show comment (1)
4
Eric•Woehler
22 July 2017
Version: 1.6
Just installed 1.7b as per posting etc below, working under Sierra 10.12.6 - but unable to repair permissions (I suspect framework MIA due to Apple) and removing the swapfiles function doesn't work, but deep clean still deep cleans and other functions also working, so was glad I spent the 15 minutes getting this installed (1.6), upgraded (1.7b) and working. Longest time was spent triple-checking script attributes/permissions with BatchChmod to make sure I didn't have to re-login as root.

Instructions below by sickteddybear re installing and replacing 1.6 with 1.7 very good.

Just type 'applejack' in singe user mode (cmd-s) after the system text has fllled several screens and choose from specific options (1-5) or run 'Auto'.

Once done, hit 'r' to restart your Mac. sweet!
(0)
Show comment (1)
4
Zarquon
25 November 2016
Version: 1.6
Just tested under macOS 10.12 Sierra after installing the 1.7 update described below by SickTeddyBear, and it works great. No need even to type in the path; simply type "Applejack" in Single User Mode, and everything works as expected, except for Repair Permissions, which is no longer needed anyway.
(0)
Show comments (3)
kbootsyb
07 October 2016
Version: 1.6
I ran Applejack. To run parts 3 & 5 to clean the Cache and the memory, you need a apple password. I bought the computer used and don’t have the Apple ID or Apple ID’s from the previous owner or owners. Can I get around this so I can run these two parts of the program? Thanks…
(0)
5
Svenster
01 April 2016
Version: 1.6
This really is an amazing product. 6 years after it ceased being updated I found myself in a situation where my laptop running OSX 10.11.4 and my mouse arrow lost its ability to left click on anything. rendering the input unavailable. No input devices had left click functionality. Not the Trackpad nor any usb mouse connected to it. And this was the issue across all logins. It was a bit of a problem. Now I was a seriously heavy user of AppleJack also on every computer i have managed. But I haven't even booted into it with this OS before. So I fired it up and run the remove cache routine and checked for corrupt preferences and asked it to reboot. And it did and the issue was resolved!! Quite an amazing product.
(0)
0.5
fwilkinson
02 November 2015
Version: 1.6
shit
(0)
Show comment (1)
Tlance
10 October 2015
Version: 1.6
Still works on El Capitan! (Not performing permissions step.) Must enter path yourself at prompt: /private/var/root/Library/Scripts/applejack.sh
(1)
Show comments (2)
Ward
16 March 2015
Version: 1.6
I just discovered I overlooked installing AppleJack on my new iMac running 10.10..2. I'm now faced with choosing between the formal 1.6 release from 2010 or the "untested and unreleased" 1.7 update offered by Negritude on Oct 28, 2013 (see below). Which should I pick?
(1)
Free

4.5

App requirements: 
  • Intel 32
  • PPC 32
  • Mac OS X 10.4.11 or later
License: 
FreeAbsolutely Free
Application is not under development & not supported.

Downloaded & Installed 763,811 times

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