2006-02-07 17:40:23     Adding multiple user accounts

2006-02-07 17:40:23     Adding multiple user accounts

Jason Holden (UNITED STATES)

Message: 5445    I built a kernel with passwd, adduser, addgroup, deluser, and delgroup. I am doing this because I would like to add a non-root user and password protect both the user account and the root account.

When I run passwd logged in as root, and change the password, I don't see a change in /etc/passwd

I can add a user and switch to that new user if I do the following, but when I try and switch users again I run into difficulties:

root> chmod 775 /bin/busybox

root> adduser user1

Enter new Unix Password:

Re-Enter new Unix Password:

root> adduser user2

Enter new Unix Password:

Re-Enter new Unix Password:

root> su user1

user1> su user2

su: This applet requires root priviledges!

user1> su root

su: This applet requires root priviledges!

Once I switch users once, I can't seem to switch users again. The /etc/passwd is updated to reflect the fact that I added two new users. I have tried doing a chmod 777 /bin/busybox and that doesn't help. I'm guessing that I am running into busybox peculiarities. Has anyone else had success turning the blackfin into a multi-user machine?

This is for the BF533-STAMP

-Jason

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2006-02-09 01:33:47     RE: Adding multiple user accounts

Robin Getz (UNITED STATES)

Message: 5472    Jason:

Check out:

http://docs.blackfin.uclinux.org/doku.php?id=uclinux_features#user_group_management

and let me know if this helps.

-Robin

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2009-01-04 20:48:34     RE: Adding multiple user accounts

uni chen (CHINA)

Message: 67339   

hi Robin,

I opened the URL, but I got such message:

"You've followed a link to a topic that doesn't exist yet. If permissions allow, you may create it by using the Create this page button."

Would you please send me the latest document's URL?

Thanks a lot!

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2009-01-04 20:57:39     RE: Adding multiple user accounts

Robin Getz (UNITED STATES)

Message: 67340   

Uni:

The search in the wiki works pretty well.

http://docs.blackfin.uclinux.org/doku.php?id=uclinux-dist:features#user_group_management

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2009-01-04 22:23:47     RE: Adding multiple user accounts

uni chen (CHINA)

Message: 67342   

Thanks a lot, Robin.

I have solved this problem.

But when I use "passwd root" to change root's password and then use "su", input the same password, there is always such message: "su: su: incorrect password".

Would you please tell me how to solve this problem?

Of course, I will read the document to see if there is any answer for this problem.

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2009-01-04 23:57:03     RE: Adding multiple user accounts

Robin Getz (UNITED STATES)

Message: 67345   

Uni:

The root password is 'uClinux'. If you want to change it - the easiest thing to do is update the /etc/passwd file.

-Robin

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2009-01-05 21:04:23     RE: Adding multiple user accounts

uni chen (CHINA)

Message: 67400   

Thanks a lot, Robin.

I tried "uClinux" after updating the whole rootfs, but it still didn't work...

And then I use:

    perl -e 'print crypt("uClinux", "zA"),"\n"'

command on PC, the result is:

    zAEslbXb82YB6

I put this string into /etc/passwd (no shadow in my uClinux) :

    root:zAEslbXb82YB6:0:0:root:/root:/bin/sh

But I still got such error message:

    "su: su: incorrect password"

Where is the problem?

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2009-01-05 21:58:18     RE: Adding multiple user accounts

Mike Frysinger (UNITED STATES)

Message: 67404   

`su -` works fine for me.  use `passwd` on the board to make sure the password is set correctly.

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2009-01-06 01:53:44     RE: Adding multiple user accounts

uni chen (CHINA)

Message: 67423   

I'm 100% sure the password is correct.

I re-compiled the whole rootfs(add and remove some components), and found an intersting thing:

I can login into uClinux as root successfully(ssh xxx -l root),

but when I use other user name to login into system and then "su", the system will always report "su: su: incorrect password".

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2009-01-06 01:56:33     RE: Adding multiple user accounts

Mike Frysinger (UNITED STATES)

Message: 67425   

then you should trace the busybox su.c code to make sure the myraid of options that are available are not resulting in an early fail due to misconfiguration on your board