Need to reset NVRAM everytime to boot.
Pushing the power button doesn't work. I could hear the chime
but all I got is the dark screen, no grey screen, let alone
seeing the Apple logo.
Tried reset PRAM, and ran the hardware test showed everything
is noraml (At least that is what the test said.)
Reset the NVRAM (command->option->p>r) boot successfully but
really it is annoying and indicating something is not right.
Any ideas? Thanks.
Week 21 build.
Oh, the it happened right after I upgrade with the 10.4.7
combo.
Could I repair the
startup disk by running the Disk Utility already
installed in
the machine?
No, you would have to be booted from it. You could try running fsck to check/repair your hard drive.
1. Reboot/Startup holding your Command-S key down.
2. At the command line type the following and hit 'Return.'
/sbin/fsck -fy
3. After it has check/repaired your disk, type 'reboot' and hit 'Return' again. Unit should bootup normally.
-Bmer
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Similar Messages
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I have an imac 2009 the disk drive is damaged and I have lost the passwords I need to reset passwords I tried booting with a macosx disk from an external hard drive but did not read the drive how else can I reset password ?
I have a 2012 mac book pro can I use that to connect with firewire and load osx that way? and how woudl I do that?
Thanks so much!To what password are you referring? Do you mean your user account's admin password? Or do you mean the master password for File Vault or do you mean a Firmware Password?
For an admin password:
Forgot Your Account Password
For Snow Leopard and earlier
Mac OS X 10.6- If you forget your administrator password
For Lion/Mountain Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
When the menubar appears select Terminal from the Utilities menu.
Enter resetpassword at the prompt and press RETURN. Follow
instructions in the dialog window that will appear.
Or see Reset a Mac OS X 10.7 Lion Password and
OS X Lion- Apple ID can be used to reset your user account password.
If you cannot do the above then try this:
1. Boot to Safe Mode by restarting and after the chime press and hold down the COMMAND-S keys until a black screen with white type appears.
2. At the prompt, type the following commands pressing return after each command line:
/sbin/fsck -yf
If you do not receive a "Filesystem OK" message then repeat this command until
you do. If after seven tries you still do not receive a "Filesystem OK" message,
then the system is corrupted and needs to be reinstalled.
mount -uw /
cd /private/var/db/netinfo
mv local.nidb local.old
rm ../.AppleSetupDone
shutdown -r now
The second-to-last command above will cause OS X to think that the operating system is newly installed, and when the new owner starts up the computer it will send him/her to the startup wizard where he/she can start a new user without reinstalling.
This last method does not actually change a password. It simply removes the user accounts and lets you create an initial admin account as if the computer were new out of the box.
How to reset the OS X password without a startup CD:
Reboot into Single-user Mode. Enter the following and press RETURN after each command line
1. Type fsck -fy
2. Type mount -uw /
3. Type passwd <username>
I have never tried this method myself. -
Need to reset printer everytime i log in
Good day!
I ready need some help here.
I'm using the Printer Espon stylus C65_usb.
Every time I start the computer, I always need to "reset printing system" at printer setup utility before adding the Espon printer and Adobe PDF 7.0.
Is thay some kind of bug after i update to 10.4.11
and also, can i update my memory to 2 GB (1G each slot)
Thank!
Message was edited by: An_DYour issue technically does not really belong in the 'getting online and networking' section of the forum as your printer is a usb printer.
And also your in the 10.5 section of the forum. You state in your post that your using 10.4.11
Try posting your issue here Tiger Printing and Faxing -
My left arrow does not work on my macbook pro(model A1226).
I have reset nvram, performed a safe boot, pulled the cache to desktop, replaced .globalpreference.plist, & tested all other keys with "keyboard viewer" (all other keys work except for the arrow).
In addition, I have gone thru all the recommended checks with universal access and have booted from snow leopard dvd and the left arrow still does not work.
I have tried using the left arrow key in all of applications I use such as: excel, ms word, address book, calendar, iphoto, terminal, & highlighting an icon and using the arrows to move to another selected icon.
Here is the kicker! In addition, I purchased a logitech solar bluetooth keyboard and the arrows work fine with my ipad but do not work when paired with the macbook pro. All other keys work fine on the macbook pro using the bluetooth keyboard.
I believe this says that the problem is not in my macbook pro keyboard. So where can it be?
Can anyone think of any other rabbit holes I can search?
thanks and regards
vats3I would also like to add that I've reverted the two cd drive and hard drive mods I did and the laptop is back to factory hardware and there is 0 corrosion or mold visible.
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HT1379 why do i need to resetting PRAM and NVRAM
why do i need to resetting PRAM and NVRAM
why do i need to resetting PRAM and NVRAM
If you computer is working fine you do not need to reset this. It is not a maintenance procedure.
Mac OS X: What's stored in PRAM -
i dont know why but everytime i plug in my ipod touch it needs to reset, i cant even use it now. any suggestions?
Error 13 and 14: These errors are typically resolved by performing one or more of the steps listed below:
Perform USB isolation troubleshooting, including trying a different USB port directly on the computer. See the advanced steps below for USB troubleshooting.
Put a USB 2.0 hub between the device and the computer.
Try a different USB 30-pin dock-connector cable.
Eliminate third-party security software conflicts.
There may be third-party software installed that modifies your default packet size in Windows by inserting one or more TcpWindowSize entries into your registry. Your default packet size being set incorrectly can cause this error. Contact the manufacturer of the software that installed the packet-size modification for assistance. Or, follow this article by Microsoft: How to reset Internet Protocol (TCP/IP) to reset the packet size back to the default for Windows.
Connect your computer directly to your Internet source, bypassing any routers, hubs, or switches. You may need to restart your computer and modem to get online.
Try to restore from another known-good computer and network.
Above is from the same article I provided above. -
Need to reset everytime I try to connect
Infitinity is working fine on my main computer, but everytime I try to connect on any laptop I need to reset the Hub to get it to connect. I've tried several laptops and all have the same issue. On my phone it connects intermittently but a reset doesn't work with it.
This has only been happening in the last week, nothing has changed over that time to have started it though.
Any help would be appreciated,
Thanks
Solved!
Go to Solution.Thanks.
I think I've actually found the problem, it seemed to be an issue with my new phone (BlackBerry Torch). The problem only started when I got the phone (I didnt mention it as I didnt think it was even possible to be an issue!), I returned it yesterday to get a different BB and since then I have had no issues. -
Cannot reset NVRAM, Powermac will not boot
This happened just after I edited the NVRAM content using the 'nvram' command. I have a Universal binary plugin that won't run on PowerPC, figured it might have something to do with endianness, so I tried changing the boolean value for "little-endian?" in NVRAM from false to true.
At the time I though, no matter what, I'd be able to revert back to the original state by resetting NVRAM. But no!
I get the startup chime, but the display is blank. I've tried resetting PRAM and NVRAM (cmd-alt-p-r/-n-v), but holding down those keys after the first startup chime, the computer doesn't seem to reboot (i.e. no second chime).
Is there any other way of resetting the NVRAM? I can't access open firmware either.
Thanks in advance.
Message was edited by: Marcus HedenstromSo, now I have read the manual, and resetting PMU (note that the manual claims the PRAM-battery should remain in its socket for the procedure) should reset the PRAM.
I am suspecting my PRAM battery has lost so much charge it can no longer provide the required voltage of 3.3 - 3.7 Volts. Thus, there's not enough juice in there to do the actual reset.
I'll try replacing the battery and see what happens.
Message was edited by: Marcus Hedenstrom -
1) Could not start up os x
2) Only could start bootcamp
3) Tried resetting nvram
4) Could not start even in bootcamp
5) Verify disk says …. Verifying volume “Macintosh HD”
Error: Live file system repair is not supported
6) Installed maverick on USB drive
7) Boot from USB drive. Tried verifying HD: Volume header needs minor repair. The volume Recovery HD was found corrupt and needs to be repaired. Verifying volume “Macintosh HD”: Error: live file system repair is not supported.
8) The terminal code says
9) Last login: Wed Feb 11 14:09:47 on console
10) xxxx-MacBook:~ xxxx$ diskutil list
11) /dev/disk0
12) #: TYPE NAME SIZE IDENTIFIER
13) 0: GUID_partition_scheme *160.0 GB disk0
14) 1: EFI EFI 209.7 MB disk0s1
15) 2: Apple_HFS Macintosh HD 80.1 GB disk0s2
16) 3: Apple_Boot Recovery HD 650.0 MB disk0s3
17) 4: Microsoft Basic Data 50.0 GB disk0s4
18) /dev/disk1
19) #: TYPE NAME SIZE IDENTIFIER
20) 0: GUID_partition_scheme *15.6 GB disk1
21) 1: EFI EFI 209.7 MB disk1s1
22) 2: Apple_HFS BOOT 14.8 GB disk1s2
23) 3: Apple_Boot Recovery HD 650.0 MB disk1s3
24) Saeedehs-MacBook:~ saeedehmirbagheri$ diskutil cs list
25) No CoreStorage logical volume groups found
26) Saeedehs-MacBook:~ saeedehmirbagheri$ sudo gpt -vv -r show /dev/disk0
27) Password:
28) gpt show: /dev/disk0: mediasize=160041885696; sectorsize=512; blocks=312581808
29) gpt show: /dev/disk0: PMBR at sector 0
30) gpt show: /dev/disk0: Pri GPT at sector 1
31) gpt show: /dev/disk0: Sec GPT at sector 312581807
32) start size index contents
33) 0 1 PMBR
34) 1 1 Pri GPT header
35) 2 32 Pri GPT table
36) 34 6
37) 40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
38) 409640 156394528 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC
39) 156804168 1269544 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
40) 158073712 56853648
41) 214927360 97652736 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
42) 312580096 1679
43) 312581775 32 Sec GPT table
44) 312581807 1 Sec GPT header
45) xxxx-MacBook:~ xxxx$ sudo fdisk /dev/disk0
46) Disk: /dev/disk0 geometry: 19457/255/63 [312581808 sectors]
47) Signature: 0xAA55
48) Starting Ending
49) #: id cyl hd sec - cyl hd sec [ start - size]
50) ------------------------------------------------------------------------Thank you -
I booted from external USB. The diskutil list output is from OS x booting from the USB, which shows the following:
Saeedehs-MacBook:~ saeedehmirbagheri$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *160.0 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 80.1 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Microsoft Basic Data 50.0 GB disk0s4
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *15.6 GB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_HFS BOOT 14.8 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
Saeedehs-MacBook:~ saeedehmirbagheri$ diskutil cs list
No CoreStorage logical volume groups found
I am not able to use target disk mode because I don't have firewire/thunderbolt ports. -
Why do I have to select a file – get Info – select – open with – and change from Preview to another program and click CHANGE ALL with every file extention everytime I boot up.
Back up all data.
This procedure will unlock all your user files (not system files) and reset their ownership and access-control lists to the default. If you've set special values for those attributes on any of your files, they will be reverted. In that case, either stop here, or be prepared to recreate the settings if necessary. Do so only after verifying that those settings didn't cause the problem. If none of this is meaningful to you, you don't need to worry about it.
Step 1
If you have more than one user account, and the one in question is not an administrator account, then temporarily promote it to administrator status in the Users & Groups preference pane. To do that, unlock the preference pane using the credentials of an administrator, check the box marked Allow user to administer this computer, then reboot. You can demote the problem account back to standard status when this step has been completed.
Triple-click the following line to select it. Copy the selected text to the Clipboard (command-C):
{ sudo chflags -R nouchg,nouappnd ~ $TMPDIR.. ; sudo chown -Rh $UID:staff ~ $_ ; sudo chmod -R u+rwX ~ $_ ; chmod -R -N ~ $_ ; } 2> /dev/null
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
The command will take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear, then quit Terminal.
Step 2 (optional)
The first step should give you usable permissions in your home folder. This step will restore special attributes set by OS X on some user folders to protect them from unintended deletion or renaming. You can skip this step if you don't consider that protection to be necessary.
Boot into Recovery by holding down the key combination command-R at startup. Release the keys when you see a gray screen with a spinning dial.
When the OS X Utilities screen appears, select
Utilities ▹ Terminal
from the menu bar. A Terminal window will open.
In the Terminal window, type this:
resetpassword
That's one word, all lower case, with no spaces. Then press return. A Reset Password window will open. You’re not going to reset a password.
Select your boot volume ("Macintosh HD," unless you gave it a different name) if not already selected.
Select your username from the menu labeled Select the user account if not already selected.
Under Reset Home Directory Permissions and ACLs, click the Reset button.
Select
▹ Restart
from the menu bar. -
Need to reset password in Panther 10.3.9. Retail install disc won't mount.
I'm at the end of my wits here. I actually need access to Carbon Copy Cloner, but everytime I put in the password and click "clone" it says I entered in incorrectly.
I did this a while back with my Tiger, G4 PB. I believe the Tiger install disk will allow me to reset password (it won't with Panther).
Everytime I boot from the CD, I end up stuck in the blue screen.TheRobotsCubicle, welcome, either you need to fill out your machines profile here or give us a little more info on your computer and any add-ons. In the mean time try resetting the PRAM.
Joe
Power Mac G4 Gigabit Ethernet Mac OS X (10.3.9) 1.5 GB Ram, ENCORE/ST G4, Tempo SATA, ATI Radeon 9000, Adaptec 4000 -
Reset NVRAM while EFI Password enabled
I have a macbook pro (late 2011).
And, I need to reset the NVRAM / SMC.
However, I have my EFI Password enabled.
And, I DO remember my EFI Password (a lot of people in Google is searching how to reset it, anyway) !!!
When I do the following -
1. Restart
2. Press & hold CMD+ALT+P+R while booting, it prompts the EFI Pawword
3. I provide the password
4. Immediately after entering EFI Password, I press & hold CMD+ALT+P+R
5. It loads OS X Utilities, does not restart (as explained in Apple's page, the system should restart)
I have reasons to believe that the NVRAM is not reset
By the way I do not want to get rid of EFI password.
Any luck ?Thanks DS Store.
I meant to say NVRAM (of Intel Macs), not PRAM (PPC Macs).
The first article is good, however, I am able to find little help for my problem.
It covers PRAM, and till OS X 10.5.X. Mine is 10.8.X.
I have browsed Google, and found that I need to visit Apple Care for EFI Password reset (or, use the logic board reset).
Any alternative ? This is bad to forbod someone from resetting NVRAM / SMC if EFI Password is enabled :-( -
as many of you do, I use time capsule as airport, too...
It worked fine for 6 months or so after I bought the new time capsule. (I bought it in September 2012.)
Since the beginning of this year, I had to reset, and power off and plug it in almost every week, then now I need to reset and power off and back on again every day...
When I first set up the time capsule, I followed the instruction with the manual.
But, now I am so lost and don't want to reset every day for wifi connection.
Anyone has problem like me or knows how to solve this issue?
Please help..
I have MacBook Pro OS X 10.8.4 & my roommates have PCs. (just in case if it helps...)For PC it is important the wireless has names that are compatible.. short.. like 10 characters.. but 2-20 is fine. no spaces.. and pure alphanumeric.
Use WPA2 personal only.. with pure alphanumeric password .. again 10-20 characters should be fine.
The latest firmware is a dud. Go back to 7.6.1
Open the airport utility.. click on the TC and holding the option key click the actual version number..
Go back to 7.6.1 is simple.. just select it and away it will go.. ignore future requests for upgrade.. you can also tell the utility not to check weekly for updates. You will need 5.6 utility for this I think..
So do the firmware downgrade.
Then do a factory reset and follow the name information above.. for TC name as well btw.. wireless name/s and disk share name.. which by default is data and that is fine.
So some instructions in...
The Factory Reset.
Power down the TC.
Hold in reset. and keep holding it in. Be Gentle! It is a tiny surface mount switch with a plastic lever.. Attempting to push it out the other side of the TC will not make the switch turn on better.
(I fix TC and have several reset levers bent over and jammed or broken off).
Power on the TC.. remember with the reset held in.. this needs three arms.. a friend or power switch you can get to with your feet..
Keep holding in reset for about 10sec until the front LED flashes rapidly.
Release reset and wait .. the boot will be slow as it deletes previous setting.. only from router side and pulls out the factory defaults. No files are deleted on the hard disk.. but the name of the TC may change.
How to load 5.6 into ML.
1. Download 5.6 for Lion.
http://support.apple.com/kb/DL1482
Click to open the dmg but do not attempt to install the pkg.. it won't work anyway.
Leave the package open on the desktop so you can see the file. AirportUtility56.pkg
2. Download and install unpkg.
http://www.timdoug.com/unpkg/
Run unpkg on the desktop.. If your Mac refuses to run the software, because it wasn’t downloaded from the Apple store, go to security in preferences and allow other software to work.. this is limitation of trade methinks. You can set back later if you like.
Now drag the AirPortUtility56.pkg file over to unpkg.. and it will create a new directory of the same name on the desktop.. in finder, open the new directory, drill down.. applications, utilities .. there lo and behold is Airport utility 5.6 .. drag it to your main utilities directory or just run it from current location.
You cannot uninstall version 6 (now 6.3 if you updated) so don't try.. and you cannot or should not run them both at the same time.. although I have had no problems when doing so.
You can also load airport utility into a pc and get access to all the settings. Untick the box for firmware updates.. it will still bug you occasionally.. regardless of the setting.. just ignore it..
You might still need to do the occasional reboot of the TC as well. -
I my mac wont recognise my password, i have tried to reset password using single user but my mac wont stop at single user it just continues to root, how do i get it to stop at single user so i can add info needed to reset password?
Are your sure that wasn't a Verbose boot (Cmd-V) you were trying? That would go on to a regular boot.
Try a PRAM Reset, then try the single user, Cmd-S, at the startup chime. For the PRAM Reset, hold down Option - Cmd - P - R all together until it chimes a total of three times, then let go to finish booting. -
i recently reset my admin password, and promptly forgot it. now i need to reset. unfortunately when itry to reset with my apple id, it does not accept. i believe it is because i need to connect to internet by wifi, which i cannot turn on due to login problem. how can i reset my admin password.?
Forgot Your Account Password
For Snow Leopard and earlier
Mac OS X 10.6- If you forget your administrator password
For Lion/Mountain Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
When the menubar appears select Terminal from the Utilities menu.
Enter resetpassword at the prompt and press RETURN. Follow
instructions in the dialog window that will appear.
Or see Reset a Mac OS X 10.7 Lion Password and
OS X Lion- Apple ID can be used to reset your user account password.
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