OS X V10.7 Lion :: Changed Permissions On Startup Disk - Now MBA Hangs Up On Boot
Apr 17, 2012
I have a new MacBook Air running Lion. Every time I use my backup software, it changes the permissions on my external drives, and I have to change them from read only to read & write, so I've gotten in that habit.At one point, I noticed that the permissions on my internal *startup disc* were read only, so I (foolishly, I now know) changed the permissions on the startup disc to read & write, with apply to all enclosed items checked. As I continued working, I got messages that a number of extensions could not be used and will be disabled (or something like that). I decided to reboot, so the computer could reset and hopefully correct things.
When I tried to boot, it hung up on the grey screen with the Apple logo and the spinning clock/gear. I let it spin for a while, then forced power down and tried to boot in safe mode. The progress bar appeared as it's supposed to, but when the progress bar finished, it went back to the grey screen and hung up again. I let it spin for over 40 minutes before powering down, just in case it was doing diagnostics or something.I don't have access to the original OS DVD (nor do I have an optical drive to put it in). Any way for getting the computer to boot, at least in safe mode?
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Jun 29, 2012
Is it better to boot in Safe Mode in Lion to repair permissions?
Info:
iMac, Mac OS X (10.7.3), iMac Late 2009
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Apr 27, 2008
I have a mac pro running leopard (purchased in 2/08) and it was running beautifully for almost 2 months with no hangs, crashes or freezes. Then, for some reason, today when I turned it on, it would not boot. It would get to the apple logo, then just sit there for a few minutes, then reboot itself and the same thing would happen. I pulled out the ethernet cable, unplugged all usb except keyboard/mouse and it would then (sometimes) boot into the system, log me in and present me with the UI.
I then quickly performed a soft reboot and it would get to the desktop. However, I can only use it for anywhere from 30 seconds to 5 minutes before it would completely lockup. The clock freezes, the mouse freezes and it just sits there forever. I have tried booting into Vista (BootCamp) and it also freezes before startup is complete. If I hold down Option and then select the System disk, it will either just hang forever or get to the desktop and then freeze again....................
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Apr 4, 2012
I am having trouble trying to boot from my lion OS X install disk on a 2007 macbook. The disk ejects when I start up with the option key pressed.
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Jun 26, 2012
about half a year ago the address book in my Macbook started to grow uncontrolled until it had more than 100000 records, wherof 99% were empty or fragmented, This caused the app to be very slow and freeze from time to time.
I tried to delete the corrupted records, but because of the large database and an old Macbook, it took ages to delete just a couple of hundred records a time. Now the app refuses to start (it hangs before it even shows up), even as the first app after a reboot.
The iCloud address book is OK on the web and on my iPad, so if I just could empty and reset the app in Macbook, I could be back on track.
I've tried to move the addressbook file (AddressBook-v22.abcddb, 125,3 MB) to another library, and I've deleted the .plist files, but it doesn't help.
I can see that the process findnames grows to almost 1 GB in memory if I don't stop it, and so does the process AddressBookMobileMeSharingAgent ...
Info:
MacBook, Mac OS X (10.7.4)
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Jan 31, 2010
Reset my disc permission is Disk utility ...like the idiot i am, and now My MBA won't boot past the Apple logo and spinning cog. In Single User Mode the key problem seems to be. sudo: /private/etc/sudoers is mode 0666, should be 0440 :/ root# sendmail: warnibg: valid_hostname: empty hostname sendmail: fatal: unable to use my own hostname / is it possible to repair permissions in Single User mode?
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Jun 16, 2012
I use a NAS for backups and external storage.At some time in the past week, my backup operations stopped working, and I think I have tracked down the source of the problem. Somehow, an "extension" got added to the disk name (I did not do this and I am not sure how it happened).The disk name (Cosmos) has not changed, but when right click and choose "get info", in the "Name and Extension" section, the disk shows up as Cosmos-1. Unfortunately, the name is greyed out and I can't change it.Does anybody know how I can remove the -1 extension and change the name back to Cosmos so that my backups see the disk again?
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Jul 1, 2012
Running 10.7.4, MacBookPro Mid 2010.
After hardware failure (read heads on HD gave out. AppleCare replacement of HD. Third party data recovery and reinstall on my new HD.) I connected new Ext HD for Time Machine, and Time Machine has corrupted my startup volume.
Took to the repair shop and they said the Time Machine preferences file was corrupted, which left all my system drive data in a read-only state after backup. They trashed the pref file, and reset the permissions/read-only flags on my startup volume.
1) How do I reset the file permissions myself? (so I can nuke my Time Machine backup, manually back everything up, and manually recreate my entire system drive?)
2) Do you think since the data recovery place (Apple Authorized BTW) rewrote all my original data to the new HD, some "random" corruptions were copied over? Or is this a problem with Time Machine? (Which is why I want to do a manual reinstall/restore.)
Info:
MacBook Pro, Mac OS X (10.7.3)
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Dec 23, 2009
I'm seeing this show up when I do a permissions repair in Snow Leopard 10.6.2
Permissions differ on "usr/share/derby", should be drwxr-xr-x, they are lrwxr-xr-x
Repaired "usr/share/derby"
It shows up each time I do this. Anyone else seeing this?
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Apr 18, 2012
I tried running blackmagic design's disk speed test on our Mac pro ssd boot drive only to be told that the drive was read only. looking at the disk info I saw this:
admin: r&w
system: read only
wheel: ro
everyone: ro
I changed system to r&w to allow me to use the disk test. I would have expected to see (me) somwehere in the access list but I'm not there and I can't add myself. Is there a way to rest the drive's permissions to the default settings? Or what is the best solution to wipe the drive and start over?
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Feb 25, 2012
I put an external USB drive into my Macbook Pro, to transfer some files from it to a PC. I wanted to delete a file from a folder that I've just copied, but the file would just pop right back on.I've tried to erase the whole drive, Disk Utility couldn't. Tried to use sudo chmod 755 on the volume, it said that I only have read only previliges.
Info:MacBook Pro (13-inch Early 2011), Mac OS X (10.7.2), Driver : USB Transcend JF V30/8G
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Aug 26, 2010
I have 5 partitions on 3 harddisks. While installing Snow Leopard on one of them I Lost access to ALL of them. By using the Installer DVD I managed to fix the Snow Leopard one but the rest are locked. I can't change permissions even as an admin, tried Terminal, nothing works, I'm getting desperate (and tired-It's 2:20 in Sweden now). The symbol of the HD in the info shows a HD with a padlock on it! Is there a Terminal command to unlock it? I have never used Terminal until this happend. If I don't reply at once I'm probably in bed but I hope somebody has helped me when I wake up.
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Sep 20, 2010
I right clicked on my Macintosh HD icon, chose get info, then changed permission to read & write, and applied it to all enclosed items. Then I restarted my MacBook and it wouldn't boot. It would just hang on the Apple logo boot screen with the spinning thing. So I did some research online and saw that I would have to wipe my whole hard drive and start over since I applied read & write to all enclosed items. I put the OSX disk in, and booted to it. Before I went to install a fresh copy of OSX, I tried to repair disk permissions instead. To my delight, it worked. I was able to boot like normal. But now I am having some strange problems.
-When I load Firefox, the bouncing icon will be all jumpy.
-When I log into Skype, the log in sound will only play halfway.
-The most weird and major problem is the no setting will save at all. If I add a new bookmark in either Safari or Firefox, then quit and reopen the program, it will not be there. If I change my home page, the setting won't save after I quit out. If I remove something from my OSX dock, then log out then log back in, it will be back.
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Apr 17, 2010
I partitioned windows XP onto my Mac HD a few days ago. It worked beautifully until last night. Whenever I booted to it, it stuck at the welcome screen for 10 minutes, and was really buggy upon startup. This morning, my MacBook Pro (bought in August '09) upon turning on automatically boots to windows XP. No amount of holding "c" or "Alt" will bring up rEFIt or boot camp selection pane. And the kicker is, the windows XP partition is completely corrupted.
Here's what happens now:
1) Turn Macbook Pro on, hold down "c" or "Alt"
2) White background for ~ten minutes, nothing happens
3) After a long time, boots to black screen and says "Startup Disk Error... Press Ctrl+Alt+Del to restart.
I'm pretty sure its trying to boot to Windows XP partition, because Ctrl+Alt+Del is not a Mac OS X command... But I can't boot to my Mac OS X partition.
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May 29, 2012
Internal hard drive crashed, could not repair. Lion installed on external boot drive, using Forklift to recover files. Cannot access the files of other users from internal drive. How di I change permissions on the internal old boot drive so I can recover the files?
Info:
Mac OS X (10.7.4)
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Jun 2, 2012
Disk Utility says there are a bunch of disk permissions that need repairing. I hit repair and disk utility says that it repaired those disk permissions. But when I verify, it says they still need to be repaired.
Info:
Mini 2.4Ghz, Mac OS X (10.6.8)
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Apr 7, 2012
why I have to check & repair disk permissions every time I have to restart my MacBook Pro. When I do the check I get various messages eg 'Library should be '0', is '80'. And other variations for Library.
Info:
MacBook Pro, Mac OS X (10.7.2)
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Jun 4, 2014
When I try turning the computer on, I get the option to choose the startup disk, but only Recovery is visible. When i check in Recovery, it still shows my original start up disk, but I cannot restart off that. What do I do?
Info:
MacBook Pro (13-inch Early 2011), OS X Mavericks (10.9.3)
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Apr 26, 2012
I accidentally changed the disk permissions on my Macintosh HD to "none" for everyone, except system and admin, who both still have read/write/exec privileges. Now, my Mac won't boot up. What can I do to fix this from single user mode or verbose mode?
Info:
iMac, Mac OS X (10.7.1)
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Jun 2, 2012
I messed up, I changed my "Wheel group" properties to No Access ( or something other than the default) at the top level of my startup disk "Macintosh HD".now my computer won't start up, I just get the spinning wheel of death.I also am in Thailand right now, so I cannot go to a Genius at an apple store, nor do I have startup disks available.So I was hoping there was a way to change back the properties of my disk (Volume) in single user mode (via Command +s) during startup, i.e. can I do a chmod command on the Macintosh HD listing under the Volume Directory.Or where do i fix this? Is it fixable without startup disks, etc...
Info:
MacBook Pro, Mac OS X (10.7.4)
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Dec 19, 2010
I am guessing that is because I did something stupid.. i changed the "Sharing & Permissions" section in my Macintosh HD Get info window. To be more specific, I changed the Everyone's permission to "no access". I tried booting with the Mac OS install disc and doing the HD recovery from the Disc Utility but it didn't changed anything. In fact there is an error every time I am trying to do "Repair Disc Permissions", while the action "Repair Disc" is completed with no problems.
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Apr 15, 2012
When I upgraded to Snow Leopard, somehow my permissions have become affected and now when I log in as administrator, I am blocked from accessing folders that the administrator should be able to access. I think that my Administrator account details got deleted or changed to 'unknown' during the upgrade when I had to wipe my whole computer to load the new software. I now get the message: 'The folder “CrashReporter” can’t be opened because you don’t have permission to see its contents.' I can then go into 'Get Info' to change the permissions by adding my admin account (which is not there for some reason) and specifying 'read and write' and then it works fine. However, I have to do this individually for each and every folder and subfolder to make the files work properly. Is there a way of having the computer change all the access permissions to accept my admin name and password again? (So I don't have to change the permissions one at a time on each folder?)
Info:
iMac, Mac OS X (10.5.8), external HD has bootable old OS
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Jun 29, 2012
I have received warning from Disk Utility that I should repair permissions as several files show incorrect permissions and, more than that, my 750GB shows "769GB available".
1. If I use Command+R and rebuild the disk from a Time Machine backup, will permissions be reset or will the files just be copied as they are now?
2. Is there a way to verify the TM backups to check the files therein?
3. Suppose, just for the sake of an exercise, that I reload Snow Leopard; can I still use SL's Time Machine to read a Lion Time Machine backup?
Info:
MacBook Pro (17-inch Late 2011), Mac OS X (10.7.3)
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Nov 30, 2008
I finally got around to changing the way my wirless devices are set-up; instead of using time capsule as my wireless device, I went back to using the linksys wi-fi router (which I'd used prior to time capsule, but now set up as WPA2 if it makes a diff?) with the intent of putting time capsule in another room with my 1TB iTunes library hanging off it. All seemed to work well but I initially had a problem with the TV keep dropping the wi-fi connection. Now connected via ethernet to the linksys, no problem. iTunes streamed okay but I couldn't seem to get time machine to make a back-up - just prepared forever (overnight, still no joy).
So I noticed today that I seemed to have lost permissions on both iTime drive and time capsule. I managed to fix the iTunes drive by connecting direct to my macbook and running disk utility then adding myself again via sharing (hip hip for MRoogle), but I cannot do the same with the time capsule. Even with airport utility and connected via ethernet I can't even get the configuration up - just spins out until it throws an error. Anyone have any ideas as to what I'm doing wrong - I'm assuming it's me as this all worked in the previous set-up...
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May 29, 2012
I restored from backup OS X 10.5.8 Leopard using Time Machine to a brand new drive. After manually migrating some data to the newly restored boot drive I accidentally replaced the /Library/receipts folder with an out dated receipts folder. The problem is there is no way to get the proper receipts folder back so I'm stuck with a receipts folder filled with permissions that are not in sync with the list. I'm assuming this blunder is causing the error: The underlying task reported failure on exit, every time I try to repair permissions. I need this boot drive to be stable and want to avoid installing from DVD the OS from scratch. The drive checks out ok with every test accept repair permissions. The system is running VERY stable now on this brand new WD Caviar Black 1 TB drive. Do you think it's safe to clone this drive even though repair permissions won't work anymore?
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May 28, 2012
How do I clean my start up disk for more space? I have I cloud but don't really use it.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Nov 25, 2009
I am trying to repair my disk so I can install bootcamp, but when I reboot my machine and run disk utility and choose repair disk, it hangs. Does anyone have any ideas ?
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Mar 22, 2012
i was using my imac with lion and the machine froze up. i powered it off and now it will not reboot. the apple logo comes on like normal and the "wheel" turns, but it wont load. I also have windows 7 through boot camp and it loads and runs correctly?
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Jun 12, 2012
I am having problems with my Mac running slow. I had a friend guide me to run a "repair disk permission".I did that but I am not sure if I am to click clear history.Also should I do anything else to help my Mac run better?
Info:
iMac, Mac OS X (10.6.8)
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May 27, 2012
My startup disk is full. When I look in information 'About this Mac', I see that this disk is almost completely filled with 'Other' (173,43 GB!°. And I cannot find out what 'Other' might be! clean this 'Other' and make memoryspace available ?
Info:
Mac mini, Mac OS X (10.7.1)
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