RE: can't login as anyone - not even as root!

2003-08-29 Thread Charles Howse
  I didn't forget my password. I simply can't login. No one 
 can login.
  Even when my root password is set to nil I can't login.
  
  Not even in single user mode?  There is no login in single 
 user mode,
  you are root by default with no password.
 
 Yes, I get the root # prompt, but I can't use the command passwd.
 It just prompts me for a password even  though the password is null.
 I used vipw so the master.passwd file is updated.

That doesn't sound right, in single user mode the prompt is 'ok'.
Are you mounting your filesystems?


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Re: can't login as anyone - not even as root!

2003-08-29 Thread Sunil Sunder Raj
Hi,

STEPS
=
As the os(FREEBSD) is starting it will display the following message:
Hit [Enter] to boot immediately, or any other key for command prompt.

Booting [kernel ] in 10 seconds...

You should now ress the space bar, and you will see the following message:

Type '?' for a list of commands, or 'help' for more detailed help.

ok

now type boot -s and press the enter key to start FreeBSD in single user
mode. After the system boots, you should see the statement:
Enter fill pathname of shell or RETURN for /bin/sh:

Press the enter key and you will have a # prompt.

[Mount  the filesystems]

At the command prompt. issue the mount command. This command will mount
all the filesystems listed in your /etc/fstab file.
# mount -t ufs -a

[Change the root password]

Issue the passwd command and you will be prompted to enter a new password
for the root account.
#passwd

New password:
passwd: updating the database...
passwd: done
[Change the manage password]

#passwd manage

#exit
There is no need to reboot the operating system to go to multi-user
mode. The exit command will cause the system to return to multi-user miode
without a reboot.
===


From: Dave Banning [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: can't login as anyone - not even as root!
Date: Thu, 28 Aug 2003 09:20:47 -0700 (PDT)
All of a sudden, I can't login, even as root. I tried to set the
password of root to nil (because I happened to be logged in as root at
the time) and that didn't work either.
Then, thinking that the machine was acting up, I rebooted. Now I am in
deeper. I can't even access the machine.
Any idea why this would happen, or more important, how I can get out?

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Re: can't login as anyone - not even as root!

2003-08-29 Thread Dave Banning
Thanks, Sunil for the steps, but I have tried that already.

When I get to the # prompt in single user mode, I cannot use 
the passwd command. I get the error;;

passwd: error opening database: /etc/pwd.db: Permission denied
passwd: /etc/master.passwd: unchanged

and permissions are as follows;

# ls -tld /etc
drwxr-xr-x  17  root  wheel  2560  Aug 28 09:16 /etc

# ls -tld /etc/pwd.db
drw---r-- 1 root wheeel  40960 Aug 28 09:12 /etc/pwd.db

I -can- execute vipw and change passwords. It updates all the files
master.passwd, spwd.db, passwd, and pwd.db without error.



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Re: can't login as anyone - not even as root!

2003-08-29 Thread Sunil Sunder Raj
Hi,
If the problem still exists try
get master.passwd from /var/backups
run the command
# pwd_mkdb /etc/master.passwd
Regards
SSR
From: Dave Banning [EMAIL PROTECTED]
To: Sunil Sunder Raj [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
Subject: Re: can't login as anyone - not even as root!
Date: Thu, 28 Aug 2003 21:40:20 -0700 (PDT)
Thanks, Sunil for the steps, but I have tried that already.

When I get to the # prompt in single user mode, I cannot use
the passwd command. I get the error;;
passwd: error opening database: /etc/pwd.db: Permission denied
passwd: /etc/master.passwd: unchanged
and permissions are as follows;

# ls -tld /etc
drwxr-xr-x  17  root  wheel  2560  Aug 28 09:16 /etc
# ls -tld /etc/pwd.db
drw---r-- 1 root wheeel  40960 Aug 28 09:12 /etc/pwd.db
I -can- execute vipw and change passwords. It updates all the files
master.passwd, spwd.db, passwd, and pwd.db without error.


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Re: can't login as anyone - not even as root!

2003-08-29 Thread horio shoichi
On Thu, 28 Aug 2003 21:40:20 -0700 (PDT)
Dave Banning [EMAIL PROTECTED] wrote:
 Thanks, Sunil for the steps, but I have tried that already.
 
 When I get to the # prompt in single user mode, I cannot use 
 the passwd command. I get the error;;
 
 passwd: error opening database: /etc/pwd.db: Permission denied
 passwd: /etc/master.passwd: unchanged
 
 and permissions are as follows;
 
 # ls -tld /etc
 drwxr-xr-x  17  root  wheel  2560  Aug 28 09:16 /etc
 
 # ls -tld /etc/pwd.db
 drw---r-- 1 root wheeel  40960 Aug 28 09:12 /etc/pwd.db
 
 I -can- execute vipw and change passwords. It updates all the files
 master.passwd, spwd.db, passwd, and pwd.db without error.
 

I think the /etc/pwd.db line should contain at least two errors.
If they aren't transcription errors one of them can be disastrous.

1) is there wheeel group, really ?

2) pwd.db is, as the name suggests, a file. The line should start with '-'.
   If it is a directory, it would have at least one permission 'x'.
   
   Mine is like this: 

%ls -l /etc/pwd.db
-rw-r--r--  1 root  wheel  40960 Jun 24 15:11 /etc/pwd.db


If pwd.db is indeed like that try remove it and do pwd_mkdb.


horio shoichi

 
 
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Re: can't login as anyone - not even as root!

2003-08-29 Thread Jerry McAllister
 
 Thanks, Sunil for the steps, but I have tried that already.
 
 When I get to the # prompt in single user mode, I cannot use 
 the passwd command. I get the error;;
 
 passwd: error opening database: /etc/pwd.db: Permission denied
 passwd: /etc/master.passwd: unchanged
 

Sort of sounds like you didn't remount root.  
When you come up in single user, root is mounted without write permission.
You need to remount it.mount -u /   will do it although
supposedly doing a mount -a will effectively include that step as well.
Still, we always do the extra step, maybe for old times.

jerry

 and permissions are as follows;
 
 # ls -tld /etc
 drwxr-xr-x  17  root  wheel  2560  Aug 28 09:16 /etc
 
 # ls -tld /etc/pwd.db
 drw---r-- 1 root wheeel  40960 Aug 28 09:12 /etc/pwd.db
 
 I -can- execute vipw and change passwords. It updates all the files
 master.passwd, spwd.db, passwd, and pwd.db without error.
 
 
 
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Re: can't login as anyone - not even as root!

2003-08-29 Thread Dave Banning

 Hmm.. Pretty long but only the last few screens are important. Problem's
 kinda weird,
 really. This is a *LAST DITCH EFFORT*, but try this. It may work. (Note:
 this assumes
 you've got system sources around).
 
 OK boot -s
 # mkdir /var/oldpwd
 # mv /etc/master.passwd /etc/passwd /etc/group /etc/pwd.db /etc/spwd.db
 /etc/login.conf /var/oldpwd
 # cp /usr/src/etc/master.passwd /etc/
 # cp /usr/src/etc/group /etc/
 # cp /usr/src/etc/login.conf /etc/
 # pwd_mkdb /etc/master.passwd
 # passwd root
 # exit
 
 And if it all fails, well, you've got your old passwd files in /var/oldpwd.
 If it works, great! Now you get to merge your accounts.

Nope. I actually had a backup /etc directory from a week ago. I replaced
the entire directory with the backup. No go. I then reinstalled via ftp
the basic user package and now all is well. On review I noticed
some /bin directories ownership had it's permissions changed to
one of my users. Then it came back to me that I had been changing
some permissions on user directories to deal with a mail permission
issue. I must have let an extra . or / slip somewhere in my chown'ing.

I wanted to -find- the problem as a matter of interest, but in the
end, I had to get things up and running as soon as possible, and
reinstalling was the fastest. It reinstalled the basics and left the
rest of my installation intact.

Thanks for your time to review the log, and your interest and comments.

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Re: can't login as anyone - not even as root!

2003-08-29 Thread Dave Banning

--- Jerry McAllister [EMAIL PROTECTED] wrote:
  
  Thanks, Sunil for the steps, but I have tried that already.
  
  When I get to the # prompt in single user mode, I cannot use 
  the passwd command. I get the error;;
  
  passwd: error opening database: /etc/pwd.db: Permission denied
  passwd: /etc/master.passwd: unchanged
  
 
 Sort of sounds like you didn't remount root.  
 When you come up in single user, root is mounted without write permission.
 You need to remount it.mount -u /   will do it although
 supposedly doing a mount -a will effectively include that step as well.
 Still, we always do the extra step, maybe for old times.

While I believe the problem was in the permissions, -somewhere-
I don't think it was as you are suggesting, becuase I -did- have
enough permission to completely remove /etc and replace it with
a backup /etc directory I had.

I the end, I did a minimal install which over-wrote the basic
boot files, and that did it.

thanks for your comments -




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can't login as anyone - not even as root!

2003-08-28 Thread Dave Banning
All of a sudden, I can't login, even as root. I tried to set the 
password of root to nil (because I happened to be logged in as root at
the time) and that didn't work either.

Then, thinking that the machine was acting up, I rebooted. Now I am in 
deeper. I can't even access the machine.

Any idea why this would happen, or more important, how I can get out?

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Re: can't login as anyone - not even as root!

2003-08-28 Thread Joshua Oreman
On Thu, Aug 28, 2003 at 09:20:47AM -0700 or thereabouts, Dave Banning wrote:
 All of a sudden, I can't login, even as root. I tried to set the 
 password of root to nil (because I happened to be logged in as root at
 the time) and that didn't work either.
 
 Then, thinking that the machine was acting up, I rebooted. Now I am in 
 deeper. I can't even access the machine.
 
 Any idea why this would happen, or more important, how I can get out?

Ctrl+Alt+Del
[if you get the fancy menu, choose boot in single-user mode; otherwise...]
Booting [kernel] in 9 seconds... press space
OK boot -s
[ ... ]

use /bin/sh
fsck -p
mount -a
ktrace -o /root/login.out login root
Password: type your root password
Login failed
press Ctrl+C
kdump /root/login.out | mail [EMAIL PROTECTED] -s Re: can't login as anyone - not 
even as root!

Note: my syntax for kdump/ktrace may be a bit off, see their man pages.

-- Josh

 
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RE: can't login as anyone - not even as root!

2003-08-28 Thread Charles Howse
 All of a sudden, I can't login, even as root. I tried to set the 
 password of root to nil (because I happened to be logged in as root at
 the time) and that didn't work either.
 
 Then, thinking that the machine was acting up, I rebooted. 
 Now I am in 
 deeper. I can't even access the machine.
 
 Any idea why this would happen, or more important, how I can get out?

This is a frequent question, don't panic, see link below.

http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/admin.html#FORGOT-R
OOT-PW


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