Sudo chown root:admin / command information

I would like to know if the use of this command before an OSX update would affect the operation of my computer after the 10.6.7 update. I had to use this command (suggested by vea1083) to fix a directory ownership disassociation following the iTunes 10.2.1 Update which slowed my MacBook Pro boot up speed by twice of the time. The following command was used to fix the issue and it worked successfully:
*sudo chown root:admin /*
Thank you for any assistance in this matter.

Thank You for your responses, besides noticing that my thread has been moved to another forum let me give you a little insight on my decision to call in this command in the terminal window.
It all started 1 month ago, I performed an iTunes update and to my surprise, my boot time went up from 22 seconds to almost 50 seconds. I cleared my log in items and repaired my permissions, with no success, so I had to take the sledgehammer approach and reinstall OSX and get the combo update to bring back my computer to OSX 10.6.6, after performing the reinstallation, my boot time went back to normal (22 seconds). Thinking that this was only a one time issue, when iTunes 10.2.0 came out I performed the iTunes update and again I was presented with the slow boot up issue after updating iTunes, angered by the fact that the same issue resurfaced, again I performed another permissions repair and reboot, and using my Mac in Safeboot mode failed, I had to again reinstall OSX again. Now hopeless, when the iTunes update 10.2.1 update came out, I did again the freaking update and boom again the same problem only this time I refused to reinstall OSX (I deny to see myself reinstalling OSX every single time I had to update iTunes). Fortunately I found a fix candidate in this Macrumors thread (http://forums.macrumors.com/showthread.php?t=1109887) where some MacBook Airs were reporting a similar boot time slowdown after the users performed an iTunes Update. Here was there where one user got the suggested the *sudo chown root:admin /* command:
http://rifers.org/blogs/gbevin/2009/9/20/slowstartupshutdownsnowleopard
I had hold off my 10.6.7 update pending a before update permissions fix and time machine backup to keep my computer from running into more troubles that I am already had.
Thank you for your understanding and suggestions

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Executed "sudo chown -R admin /" by mistake. how do i check everything?

So "sudo chown -R admin /" was executed by mistake on an OSX 10.8.5 machine that's connected with a multiuser network. In addition to screwing up the local machine, it may have effected many other things since / includes /Network, /Volumes, possible non-Mac mounts, etc.
I was looking in system.log, and it doesn't show which files had their permissions actually changed. Is there any log on the machine where the command was executed, which lists all the files under / that chown was applied to before it was stopped? And would it show what the ownership was changed from? I'd like to go through that list and know the extent of the damage.
Thanks.

There is no log for that operation. Boot into your recovery volume and run Repair Permissions. It will take a while. You will have to re-run that command with the appropriate user on each user home directory. Some applications, particularly those that use DRM, will be scrambled and will have to be reinstalled. After repairing permissions and fixing the users, login as a user and try to run the expensive applications. Any that need reinstallation will alert you to that fact.

Sudo chown + chmod on system drive?

Hello,
Before I mess my system drive up I wanted to check if this is ok.
For various reasons I have created a new Account that I wish to migrate to. I log in ok and can change permissions but there seem to be files on various places that I keep having to set permissions for and wish to resolve this for the whole drive.
What I want is a way to set permissions on all non system files to add admin access as it appears it is not there for certain files
I found the below commands which worked on my media drive but am reluctant to run it on the system drive:
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sudo chmod -N /Volumes/System
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sudo chmod -RN /Volumes/System
I don't want to mess up the system drive so I thought I should check if this is ok or not. I think some system files need to be read only so I need to know if this will render the drive useless(I do have a full backup).
I also see people recomend Batchmod but am again unsure if this will work or what settings to use?

Thanks Niel,
I have read numorous posts from yourself and V.K. relating to locked secondary drives but nothing relating to system drives and fully expected that answer. can I bother you a bit more please?
Can I safly run those commands on some of these folders?
system\users\olduseraccount
System\library\application support
System\library\audio
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Thanks again Niel
Ross

Unhappy sudo chown -R myuser /

hi
have mistaken performed a
sudo chown -R myuser /
on my macbook...
now it claims it cannot load several kexts like:
/system/library/extensions/system.kext/plugins/mach.kext
/system/library/extensions/system.kext/plugins/libkern.kext
/system/library/extensions/system.kext/plugins/unsuported.kext
/system/library/extensions/system.kext/plugins/bsdkernel.kext
/system/library/extensions/system.kext/plugins/iokit.kext
/system/library/extensions/autofs.kext
I need to repair the default permissions....but disk utility already said i cannot repair the disk due to this error:
the underlying task reported failure on exit
already tried to repair using the install dvd too.
found on the web this procedure:
Boot off the OS X CD (reboot, hold C while booting).
The installer will load up, go to Utilities in the menu and run Terminal.
Type df and look for the drive that has your Mac system mounted---you'll have to unmount this. On my MacBook Pro, it was /dev/disk0s2.
Type umount /dev/disk0s2, replacing disk0s2 with whatever disk your OS lives on.
Type fsck_hfs -r /dev/disk0s2. If you umounted the wrong thing, it will complain that you can't repair a mounted drive. Go back and umount the right thing and repeat this step.
(they forgot to add the step to re-mount...but its ok..)
and this one:
Single user mode (boot with -s) and then type
fsck_hfs -r /dev/volumename
will any of those save me from a archive and install?
HELP!! Those warnings cannot be good... but the system is booting and working fine till now.
thanks

biovizier wrote:
Oh come on, it isn't exactly rocket science. Compare actual permissions to expected permissions and correct discrepancies, while making allowances for a few special cases. The 'chmod -R' command does {sic} move or alter any files, it just changes the permissions so I think it falls well within the realm of what "repair permissions" should be able to handle (but I'd bet it would be faster just to reinstall).
Rocket science is not required to understand that with the "-R" option applied to the root level of the startup drive this isn't something that the permissions repair utility (in any version, old or new) is capable of repairing. That option is the command line equivalent of the Finder's "Apply to enclosed items" option, so the command affects every file in the entire filesystem hierarchy!
At best, the utility can reset permissions only of files with entries in the receipts database -- it is the only place expected permissions are stored -- & if a user acting with superuser privileges clobbers access to that, the OS is going to make those changes, even if it means making the receipts folder unavailable to the routines that must access it. The idea that the OS should 'make allowances' for that special case is ridiculous -- it is tantamount to the idea that there should be a 'super-duper-user' built into the system that prevents users willfully acting with superuser privileges from doing anything foolish.
Apple doesn't need an excuse to leave things as they are. They are that way because the permissions repair utility is not, never has been, & never will be the panacea for every permissions issue that a few users seem to think it should be. As far as I can tell, the only basis for that idea is a superficial examination of the name of the utility, some wishful thinking, & more than a little disregard for what is impractical, if not downright impossible, to implement in a general purpose, UNIX-based OS.
Anytime any user invokes sudo, they should remember the time-tested warning that *with great power comes great responsibility*. In one form or another, that warning has been around for at least 2000 years. It is no less true today. There is no need for anyone to apologize for the fact that not even Apple has found a way around it!

Lock out 'sudo passwd root'

Hey is there a way to block admin users from changing the root password (ie perform a sudo passwd root command in the terminal)
I don't want to make them a standard user but rather just prohibit them from changing root.

Not easily. It is possible to lock out that command for certain accounts by using visudo to change the sudoers file, but other methods exist to run that command, such as using sudo sh to open a root shell and then changing the password.
(10065)

Wrong ownership on TM-- is it safe to 'sudo chown -R user Time-Machine ?

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Is it safe to run:
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I ran Migration Assistant by a new user "Admin" to recover the accounts of 3 users on Lion.
After the migration, Admin owns the Time Machine history of one of the users (even though account Admin didn't even exist at the time these backups were made).
Is it safe to run:
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DUMB MOVE: sudo chown -R notroot:notroot /*

The title pretty much says it all. I changed the owner/group of everything below / to something other than root. Commands suddenly stopped working.
I rebooted, logged in as root and tried to make things better by performing the same command, but this time setting everything to root except for my home directory. I'm sure not everything in the filesystem was originally set to root:root but hopefully this would get me closer to a working system. Unfortunately sudo still wouldn't work, giving the message:
sudo: must be setuid root
I set the setuid flag on the sudo file. Sudo now works.
Next step... Under my usual username I tried to start X. X no work...
Cannot move old logfile ("/var/log/Xorg.0.log" to "/var/log/Xorg.0.log.old"
So, I set the setuid flag on /usr/bin/Xorg and now X starts up great. However, I get the feeling this setuid business might be a kludge, allowing said programs to effectively run as that program file's owner (now root). Now, I'm thinking that the fewer things I have running as root, the better. As such, my current fix doesn't seem ideal.
My screw-up didn't involve messing with the permissions in any way; I just changed the _ownership_ of everything in a very bad way. So if it's an ownership issue why should I be messing with setuid flags? Are setuid flags somehow turned off when ownership of a file is changed or is this setuid flag business just an alternate solution/workaround to my ownership problem?
More importantly, is there a reasonably painless way that I can restore all my installed packages and their associated files to their original ownerships. This would basically be a reinstall using the list of packages I already have installed as a reference, saving me the trouble of manually selecting all my currently installed packages. I looked at the pacman man page but nothing jumped out at me. Any thoughts would be greatly appreciated.
Last edited by battlepanic (2009-09-22 22:02:16)

*lol* Welcome to the club - been there, done that - and it is _not_ recommended!
I believe I resorted to a reinstall in the end - it just caused too many problems.
So take a bite out of the sour apple, back up your home directory and do a complete reinstall.
And ... I bet you 10 to 1 you aren't gonna do the same again - ever!!

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BR,
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https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/8882bd78-b12e-43e3-a892-92a044ce4882/how-should-we-manage-the-nvme-devices-in-ws2012r2-?forum=wdk#f741642d-ec39-4fc2-a99c-e38bde20e7f9
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Hi,
Yes in Browser, the response is perfect. The only issue is in Calling inside in any file, i even tried Javascript's XML dom to load it, but same result, the file is just loading and never loads completely. I also tried using an SWF file with AS3 code to load XML inside as3 and send the result to any JS function.
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Gabriel,
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hi sir,
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regards
abhi
Edited by: sumanth_abhi on Feb 5, 2009 8:54 PM

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(13950)

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Hi,
I have captured from the link which says:
http://www.cisco.com/c/en/us/td/docs/net_mgmt/prime/collaboration/9-0/administration/guide/PC9-0AdminGuide/usermanagement.html
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regds,
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Sudo chown root:admin / command information

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