First, open the Trash option. It should be on the dock. Move the mouse pointer down to the bottom of the screen, and the dock will appear. Google chrome standalone setup free download. On the far right side of the dock, there is a trash bin. In our case, we can even see little bits of trash in it. It's labeled 'Trash'. Now quit Terminal and launch Disk Utility. Go to the erase tab and select the drive itself at the very top of the left column. Now select Mac OS Extended (Journaled) in the dropdown and apply that.
By Michael Argentini
Managing Partner, Technology and Design
How do you erase your Mac hard drive and install OS X Yosemite without a startup disk? Normally the answer would be to boot into recovery mode. But what if you need to partition the hard drive, wiping the recovery partition? You need a bootable OS X Yosemite installer. Here's how to make one using Apple's built-in boot drive creation tool.
What You Need
- The 5GB OS X Yosemite installer app that downloads into your Applications folder when you first install it via the Mac App Store. The file name is Install OS X Yosemite. After you upgrade to Yosemite, this file is deleted. So you have to quit the installer once it appears in order to keep this file.
- A flash drive, external hard disk, SD card, or the like, with at least 8GB of capacity.
- Your Mac user account must be an Administrator. If it isn't, go to Users & Groups in System Preferences and assign Administrator to your user account. You can change it back to a standard user when you're finished. You can also sign in to your Mac as the administrator to create the bootable drive.
Step 1: Format Your Drive
First, you must partition and erase the drive so that it can be bootable. To do this, launch Disk Utility and choose the destination drive in the drive list (left column). On the right, in the Erase tab, choose to format the drive as Mac OS Extended (Journaled). These are the defaults, so just confirm the settings.
Next go to the Partition tab and under Partition Layout choose '1 Partition' in the dropdown menu. Change the name from 'Untitled 1' to 'Untitled'. This is so that the Terminal command below will find the drive. Once the process is complete, the drive name will be 'Install OS X Yosemite'.
Click the 'Options' button. In the dialog that appears, choose 'GUID Partition Table' as the partition scheme, then click 'OK'. Again, this is the default, so just confirm the setting.
Finally, click 'Apply' to confirm the settings and prepare the drive. Google drive warrior english.
Step 2: Make the Drive a Yosemite Boot Installer
In a single command you'll create the bootable install drive. Pretty sweet! To do this, launch Terminal and enter the following command. Note, this assumes that you haven't moved the installer out of your Applications folder. If you have, simply replace '/Applications' with the location of the installer:
The sudo command will ask for your password. As you type it will not appear. This is normal. Just enter it and press return to create the boot drive.
Adobe reader 10 1 offline installer. During installation, you'll see a progression of status messages.
Wait until you see a status of 'Done.' When you do, you can safely eject the drive and quit Terminal.
Step 3: Start Up from the Install Drive
If you open the new bootable drive in the Finder, you'll notice that it appears empty, other than the Install OS X Yosemite app. No worries. The boot files are hidden, and the installer app allows you to upgrade without booting from the drive if you don't need to.
To boot from this new installer, shut down the Mac, plug in the bootable drive, and hold down the option key while powering back up. You should eventually see a series of bootable drives. Click on the one named 'Install OS X Yosemite' and press the return key.
Where to next?
| Click here to return to the '10.5: Delete users accounts from command line in 10.5' hint |
It's not as elegant as just deleting the whole netinfo database, but it still seems to accomplish what I need.Anybody ever try deleting the whole dslocal on Leopard? That's what Apple replaced the NetInfo database with. It's located in /var/db/dslocal .
http://www.macosxhints.com/article.php?story=2007110800450816
For one thing, it was submitted earlier, it would seem.
The earlier hint was geared toward letting you delete all accounts from a system, which you can't do from the GUI because System Prefs' Accounts pane is hard-coded to not let you delete the last Admin account on a system.
So, yes, this hint is basically the same but is geared more toward deleting just the one account you set up for your testing/setup purposes.
Same tools, but a different approach for (slightly) different circumstances.
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Here's a little script I wrote that will clear user info on recent versions of OS X. Drop it in the root level of the hard drive, then boot to single user mode and run it.Please note that I hard coded the user account; someone could easily modify it to find it automatically or as a command line argument. Also the script removes itself, and the name and location are hardcoded, so adjust those as well.
My scripting is pretty rusty but it gets the job done; I'd love to see someone clean it up a bit. Really wish this functionality could get rolled into AppleJack..
PS - I'm sure I looked at the same sources as the OP when I wrote this - I don't want to take credit for the methodology.
Just noticed my account name on the original post. I didn't even realize that was my submission! I sent it in a LONG time ago (at least in 'net time). So sorry for commenting on my own hint w/o realizing it!
It's been a while since I was researching this but I don't think just deleting /var/db/dslocal worked - don't remember why. It probably deletes too many entries.
excuse my ignorance with this script/command line stuff:
what's the proper way to save this? just in textedit? or script editor?
can you give the command to run this at single user startup, after moving to root of boot drive?
Also, the only thing needed to be modified on your script is 'username', right, to the temp user I want to delete?
thanks in advance!!
Two simple changes to address the two issues of your script (the hardcoded user name and script name):
You can get the short ID 501 user name with the command: id -un 501
So if you add this
USERNAME=`id -un 501`
at the beginning of your script and then substitute all 'username' occurrences with $USERNAME you get the automatic user detection you wished for.
Secondly, you can get the full pathname of the called script using the $0 variable, so you can substitute the lines:
# remove this script
rm /userreset.sh
with those:
# remove this script
rm $0
and the script will be deleted doesn't matter which name you gave it.
bcmeta-
Copy and paste it into text edit, make sure it's plain text not RTF, then save it as 'userreset.sh' or whatever you'd like; just make sure the '.sh' is on the end. And note that if you change the name of the script you'll need to change the script line that deletes itself - use wallybear's suggestion to make it painless.
Put it in the root level of the hard drive, reboot into single user mode, and type 'sh userreset.sh' or whatever you named it.
The script will run then delete itself and shut the machine down when it's finished.
wallybear-
Thanks for the input! I'm REALLY rust on shell scripting but figured there was probably an easy way to do this. For our needs the hardcoding is fine but I certainly prefer to have a more flexible solution.
Do you know off-hand if the 'id' command and '$0' variable work consistently with 10.3 & 10.4? As you can see I'm trying to keep the script flexible enough to use with all the OS's we're likely to need it with.
Thanks for the help!
'Do you know off-hand if the 'id' command and '$0' variable work consistently with 10.3 & 10.4? As you can see I'm trying to keep the script flexible enough to use with all the OS's we're likely to need it with.'
The $0 variable is a standard for bash/sh, so it works in 10.3 & 10.4 also.
Regarding the 'id' command, man states that 'The id command appeared in 4.4BSD.'; I don't know if it is available in 10.3.x in general, but I can confirm it is from 10.3.9 and later.
Thanks.. of course I just did a little testing and it looks like the id command won't work in single user mode without starting netinfo/directory services. Not a problem for 10.5 since that has to be done anyway, but I guess I'll have to see about starting & stopping netinfo in 10.3 & 10.4. I'm not sure it's worth the trouble - starting to wonder if listing the user directory might be easier!
I recently wanted to do this but kept running into problems, even with the other hints here at the site.
One problem was that while I was able to successfully delete the temp user account and the AppleSetupDone file, even after rerunning the setup upon restart the OS does not set the first user to User ID 501.
Nilness, did you check to see if your hint here resets the User ID to 501 upon rerunning of the setup routine?
Just checked this on a 10.5 system and yes, the next user id after resetting will be 501.
In 10.4 and earlier IIRC it will be 501 as well, since you're deleting the whole netinfo db.
And for the poster who asked why it matters, if you're recovering data or trying to rebuild the user accounts from another drive it's MUCH easier to make sure the user ids match up from the start.
This seems to work except I'm looking to have iWork '09 installed first, do software updates system-wide, and then delete the user account.
I can't seem to find a way to make this work as after restarting Pages, Numbers, and Keynote all say:
'Files that iWork needs are missing. To restore the missing files, use the iWork Installer to reinstall iWork.'
Any help or ideas?
I saved the scipt as 'script.sh' on Macintosh HD (root level of hd). How can I run this script from the command line ??
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Take a Look here:
http://install-climber.blogspot.com/2011/09/delete-users-and-groups-from-terminal.html
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At the top, the hint says this must all be run from single user mode. I've found there is an alternative: Run it via ssh on a Mac that you're sure is at the login screen with nobody logged in locally. The dscl commands certainly do fail if you're logged into the GUI, but work fine over ssh, which is great news for those of us trying to support Macs that are hundreds of miles away that we can't put into single user mode.
HTH,
-K
