topic Re: no shell and bus error when su'ing in Operating System - HP-UX

no shell and bus error when su'ing

Houston Kemper — Wed, 09 Jan 2002 13:29:57 GMT

All,

I have a new system and have created new IDs through SAM, but when I try to login as any of these users, I get the following error:

su: no shell
Bus error

I've checked everything in the passwd file and am at a loss.

Any help would be appreciated.

Thanks

Re: no shell and bus error when su'ing

Sanjay_6 — Wed, 09 Jan 2002 13:36:07 GMT

Hi Houston,

Seems like you have a corrupted /usr/sbin/login. Replace this file from a working system and try.

Hope this helps.

Regds

Re: no shell and bus error when su'ing

Steven Gillard_2 — Wed, 09 Jan 2002 13:39:07 GMT

What shell have you specified for these users? There is a known problem with using /usr/bin/false documented in:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x5cb13fa720f3d5118ff40090279cd0f9,00.html

Regards,
Steve

Re: no shell and bus error when su'ing

John Palmer — Wed, 09 Jan 2002 13:46:32 GMT

Have you checked the permissions of /?

ll -d /

should be: drwxr-xr-x root root

Regards,
John

Re: no shell and bus error when su'ing

Alex Glennie — Wed, 09 Jan 2002 13:48:02 GMT

A Few Questions :

O/S , patch level , root affected -no i suspect , what is the shell they are trying to use etc ....

SOME POSSIBLE SOLUTIONS etc :
check:
1.ll -d /bin
lr-xr-xr-t 1 root sys 8 Apr 2 18:12
/bin ->/usr/bin
ll -d /usr/bin
dr-xr-xr-x 6 bin bin 10240 Apr 30 08:22
/usr/bin
ll -d /usrdr-xr-xr-x 24 bin bin 1024 May 10 09:58 /usr
ll -d / drwxr-xr-x 46 root root 144 May 12 11:39
/ll /bin/sh
-r-xr-xr-x 2 bin bin 217088 Jan 11 04:16 /bin/sh
ll /etc/passwd
-rw-r--r-- 1 root root 3517 May 11 10:23 /etc/passwd
ll /usr/bin/ksh
-r-xr-xr-x 2 bin bin 151552 Nov 7 1997 /usr/bin/ksh
ll /usr/bin/csh
-r-xr-xr-x 1 bin bin 155648 Aug 10 1998 /usr/bin/csh
ll /usr/lib/libc.1
-r-xr-xr-x 1 bin bin 1863680 Nov 18 19:55 /usr/lib/libc.1

2./etc/passwd:move user nobody behind root

3.The problem occurs when there are +:: entries in /etc/passwd
and /etc/group related to NIS (when NIS is not running). This
was causing the su command to have a bus error.
The workaround is to remove the entry: +::from /etc/passwd and /etc/group.

4.prolem with su revisions 82.15.1.1 and 82.15. It occurs when the login shell is not an executable or is not found at
all.

5 in case of using NIS:
a.You are getting the 'no shell' error because there are extra spaces
after the NIS entry in the /etc/passwd file: +::-2:-2:::

You can perform the following steps to identify the extra spaces:
1. vi /etc/passwd
2. A. Enter the 'set list' command at the colon prompt inside of vi.
Note: This command inserts a dollar ( $ ) sign at the end of
every line to indicate the end of a line.
B. Notice the position of the $ on the NIS line:
+::-2:-2::: $
The dollar sign should be immediately after the last ':'.
Remove the extra spaces at the end of the NIS entry to resolve your error

.b.[PHCO_15232/PACHRDME/English] or later is installed su(1) cumulative patch but this depend on your O/S the above is for 11.00.

Re: no shell and bus error when su'ing

Houston Kemper — Wed, 09 Jan 2002 14:20:35 GMT

Great suggesstions from everyone. Many thanks.