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You are here: MacNN Forums > Software - Troubleshooting and Discussion > Mac OS X > User on Mac GONE... will not login

User on Mac GONE... will not login
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Senior User
Join Date: Jul 2001
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Jul 2, 2006, 08:27 AM
 
OSX Tiger no extrernal harddrive

Ok, so I have a big job to convert files of a clients dvd into video files for editing, this simple task turns into a nightmare. By the half of the converting, the files over flow the hard drive and I run out of disc space. I had enough but it seems something went amiss liek a memory leak or something..

Anyway I turn the computer off to let it rest since this has always worked before on other computers. But this time around nothing.... The computer wont start, and for 30 minutes it slowly starts it's proccess of sending the chime to start. After it finally does start I get a login screen that has no user in it to start up with just a box for a user name and password....

So I boot it with the install disk and run disc repair and all the repairs I can find..

It reports a lot of fixes and reboots to the login screen ! Doh..

So I hook it to firewire disc mode to find everything still there everything is still in the users folder so all should work but it seems like the user registry is goooone..

The user is like 151 gigs of data to backup.... So it will take a while to back up to dvds,, What other method can I do before I start the LOOOONG method ??
     
Senior User
Join Date: May 2002
Location: Austria
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Jul 2, 2006, 09:13 AM
 
Have you tried entering the user name and password on the login screen? Does it really say that user doesn't exist?

If you really cannot login, but the home folder is still there, it's not impossible to recreate the user, so simply post here again and we'll help.
     
loren s  (op)
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Join Date: Jul 2001
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Jul 2, 2006, 09:57 AM
 
I tried to enter the user name and password I even tried root user name 'root' and password a no password and administrator,

After that I tried reseting the password and it does not show any user to reset the password for..
     
loren s  (op)
Senior User
Join Date: Jul 2001
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Jul 2, 2006, 10:56 AM
 
Succsess ! http://docs.info.apple.com/article.html?artnum=107210

Once started up in single-user mode, the file system is available as read only. You must access it as read-write, and you should also run fsck for safety. Follow these steps:
1. At the prompt (#), type:

/sbin/fsck -fy

2. Press Return. fsck will then run.
3. At the next prompt, type:

/sbin/mount -uw /

4. Press Return.

1. Start up the computer in single-user mode as described above.
2. These commands rename the current local NetInfo database and replaces it with the archived copy:

# mv /var/db/netinfo/local.nidb /var/db/netinfo/local.nidb.bad
# /usr/libexec/create_nidb

In 10.4:


# sh /etc/rc
# /usr/bin/niload -d -r -t / localhost/local < /var/backups/local.nidump

SWEET ! Phew... saved the rest of my sunday
     
Clinically Insane
Join Date: Oct 2000
Location: Los Angeles
Status: Online
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Jul 3, 2006, 02:41 AM
 
Glad you figured out the solution you needed. As for backups, you'd go through a lot of work backing up a large drive to DVD, although DVDs are great for backing up smaller amounts of data. My advice would be to get another drive, clone your main drive using Disk Utility or a comparable third party utility, then use a backup utility that performs incremental backups.

"The natural progress of things is for liberty to yield and government to gain ground." TJ
     
   
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