How TO Crack The Boot Password in linux?

shahid_nawaz · 04-17-2004, 06:16 AM

Muzzy · 04-17-2004, 06:23 AM

The "boot" password?

Do you mean the BIOS boot password?

Or the linux root password? For this you can use John The Ripper.

Regards,
Mark.

unSpawn · 04-17-2004, 08:06 AM

Cracking here could mean you loosing the pass, you doing a security audit or you wanting to gain knowledge of something out of your (legitimate) reach. If it's option three you're at the wrong board, for the other options please specify which pass you're talking about.

shahid_nawaz · 04-17-2004, 10:11 AM

When the machine boots, normally two options appears, one for windows & the other for the linux. it also give you the option to press 'p', after which it ask for a password. i want to crack this password. if you can help me do let me know? thankyou very much indeed.
i want simply the boot password not the bios boot password

SciYro · 04-17-2004, 04:55 PM

next which boot loader are you using?

actually it wont matter, just use a rescue dick, lnx-bbc is good, then just reconfigure / recompile the boot loader and/or both

if its not your computer you WILL get cough with this method, thats why i like it best

witeshark · 04-17-2004, 11:25 PM

And if it is your computer, and there is no success in crackers (or saltines)

then your solution resolves to reinstall the Linux partition

sennabutton · 11-01-2005, 03:58 PM

My dad uses a GRUB password on my computer to let me from getting behind my comp all day, i did actually crack the BIOS password he had, but i can't crack this, can anyone help me?

Hangdog42 · 11-01-2005, 04:17 PM

Maybe you should take the hint and get out from behind the computer for a bit. And if you actually read the rules of this board, you'll find that this sort of discussion isn't allowed.

sennabutton · 11-01-2005, 04:26 PM

Quote:

Originally posted by Hangdog42
Maybe you should take the hint and get out from behind the computer for a bit. And if you actually read the rules of this board, you'll find that this sort of discussion isn't allowed.

Haha, i'm not behind the computer that much, it's just annoying to have to ask that password over and over again. And what purpose has this forum if you can't actually ask questions you have

spooon · 11-01-2005, 04:39 PM

Quote:

Originally posted by sennabutton
My dad uses a GRUB password on my computer to let me from getting behind my comp all day,

Once you log onto the computer as root (or boot to some other system like Knoppix), you can just edit the "/boot/grub/grub.conf" file and remove the line that starts with "password ...". This removes the password. (I'm not sure if this is what you're looking for.)

sennabutton · 11-01-2005, 04:47 PM

thanks, that's usefull information, i'll try it tomorrow

Hangdog42 · 11-01-2005, 06:06 PM

Quote:

Originally posted by sennabutton
Haha, i'm not behind the computer that much, it's just annoying to have to ask that password over and over again. And what purpose has this forum if you can't actually ask questions you have

The point is that these forums don't exist to promote bad behaviour and cracking security or circumventing the rules that the owner of a computer has put in place is bad behaviour in my book. You got legit quetsions? Ask away. You want to crack a computer, take it somewhere else.

spooon · 11-01-2005, 06:56 PM

I don't think he wants to crack any passwords or anything; he just doesn't want to have a bootloader password. And he could have just as easily said "I own this computer"; would it make that much of a difference?

sennabutton · 11-02-2005, 12:46 AM

Quote:

Originally posted by spooon
I don't think he wants to crack any passwords or anything; he just doesn't want to have a bootloader password. And he could have just as easily said "I own this computer"; would it make that much of a difference?

thanks for making my point clear

Hangdog42 · 11-02-2005, 07:15 AM