UID is -1, can't login?

[Juergen Hennerich]

-------- Original-Nachricht --------
Datum: Tue, 27 Jun 2006 16:27:34 -0400
Von: Joshua ChaitinPollak <josh at kivasystems.com>
An: busybox at busybox.net
Betreff: UID is -1, can\'t login?

> Hi,
> 
> I'm having a strange problem with Busybox 1.1.0 and 1.1.3. When my  
> system boots, I get the login prompt, I type my username, and then I  
> get this error:
> 
> login: This applet requires root priviledges!
> 
> So I hacked applets/applets.c to add this line:
> 
> 	if (geteuid() != 0) {
> +		fprintf(stderr, "Effective UID = %d, ruid = %d\n", geteuid(), ruid);
> 		bb_error_msg_and_die("This applet require root priviledges!");
> 	}
> 
> What I get when I run this is:
> 
> Soekris login: root
> Effective UID = -1, ruid = -1
> login: This applet requires root priviledges!
> 
> What would cause my uid to be -1???
> 
The Linux kernel changed the UIDs from 16bit to 32bit a while ago. Maybe you are using a kernel that uses 32bit UID per default and your libc has problems hanling the 32bit UID. You can change this by enabling under the kernel General Setup-> Enable 16-bit UID system calls. 

I hope this helps.

Juergen
 

> Thanks for any help you can provide,
> 
> -Josh
> 
> PS. I don't mean to create a flame war or anything, maybe this has  
> been discussed, but as far as I can tell via google,  
> "privileges" (without the d) is the proper spelling.
> 
> -- 
> Joshua ChaitinPollak
> Software Engineer
> Kiva Systems
> 
> 
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> busybox at busybox.net
> http://busybox.net/cgi-bin/mailman/listinfo/busybox

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