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Old 05-15-2010, 12:10 PM   #1
bnrush
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Redhat machine acquired at auction, need to reset passwords


How do I find out the existing root passwd or set up a new one? Edit mode was not an option at the GRUB menu.
 
Old 05-15-2010, 12:18 PM   #2
EricTRA
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Hello and welcome to LinuxQuestions,

If you acquired the computer at an auction then the data on it will be of no use to you anyway, so why not just re-install the operating system from scratch? If you want to reset the root password, use a Linux LiveCD and have a look at Google for the procedure. It's pretty well documented, there are even threads here on LQ that explain it.

Kind regards,

Eric
 
Old 05-15-2010, 12:51 PM   #3
pixellany
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Quote:
Edit mode was not an option at the GRUB menu.
Why not?

You can always boot from a Linux LiveCD and disable the password by editing /etc/passwd (This is what Eric refers to above.)

I agree that re-installing is probably the way to go--clean start and all that....
 
Old 05-15-2010, 01:19 PM   #4
bnrush
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Don't have any of the media for the workstation. I did download the Mint .iso.

If I were to remove Redhat and start over, wouldn't I still need the root psswd to do so?

Thanks for the help
 
Old 05-15-2010, 01:23 PM   #5
EricTRA
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Hello,

If you perform a clean install then you don't need the root password at all since you'd be setting up a new system and during installation you'll be asked to set a root password. In my opinion you can just perform a clean install, unless if the BIOS is password protected, then it's a whole different ball game. But if you're referring to the systems password, then just reinstall the thing with a distro of your choice and you're good to go.

Kind regards,

Eric
 
Old 05-15-2010, 01:29 PM   #6
pixellany
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bnrush;

You didn't answer my question about why you could not edit the GRUB at startup.

Please confirm if there is a BIOS password---i.e. can you get into the BIOS setup using some key during POST? (It typically tells you on the screen.)
 
Old 05-15-2010, 01:41 PM   #7
bnrush
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To EricTRA - Using the ubuntu .iso can I install as is? Without first blowing away the existing Redhat?
To pixellany - Tried entering BIOS setup but I get a dialog box asking for a setup password
 
Old 05-15-2010, 01:43 PM   #8
bnrush
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Pixellany- not sure what you mean by "... some key during POST" What is POST?
 
Old 05-15-2010, 01:51 PM   #9
bnrush
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EricTRA - Apparently the BIOS setup is password protected. I guess I'm in the 'whole different ball game' arena.
 
Old 05-15-2010, 01:58 PM   #10
EricTRA
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Hi,

Have you tried to boot from a CD yet? The BIOS password is only necessary if for example booting from CD is deactivated. If you can boot from CD then you can perform a clean install on the machine. Can you try that first? Or does it ask you a BIOS password even before booting?

Kind regards,

Eric
 
Old 05-15-2010, 01:59 PM   #11
brucehinrichs
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Usually pulling the battery from the motherboard for 2-3 minutes will clear the BIOS settings (including the password).
 
Old 05-15-2010, 02:01 PM   #12
EricTRA
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Quote:
Originally Posted by bnrush View Post
To EricTRA - Using the ubuntu .iso can I install as is? Without first blowing away the existing Redhat?
Hi,

If you burn the iso to CD/DVD and you can boot from it, you can install Ubuntu, either wiping the installed distro (using entire disk) or you can have it use the free space on the disk and make it a dual boot.

Kind regards,

Eric
 
Old 05-15-2010, 02:03 PM   #13
EricTRA
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Quote:
Originally Posted by brucehinrichs View Post
Usually pulling the battery from the motherboard for 2-3 minutes will clear the BIOS settings (including the password).
Hi,

Really?? Didn't know that one, thanks for the info, will have to try it sometime. Sounds logical but never tried it.

Kind regards,

Eric
 
Old 05-15-2010, 02:14 PM   #14
devnull10
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Quote:
Originally Posted by EricTRA View Post
Hi,

Really?? Didn't know that one, thanks for the info, will have to try it sometime. Sounds logical but never tried it.

Kind regards,

Eric
There is usually also a bios-reset jumper on the motherboard which you can either remove for a few seconds or use to jump across two other pins and it will have the same effect.
 
Old 05-15-2010, 02:23 PM   #15
bnrush
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Tried the battery trick but it's still asking me for a BIOS setup password.
I'll try booting from CD and installing from there.
Thanks again for the suggestions and please stand by!
 
  


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