Hi,
On Aug 23, 2012, at 15:18 , Pat Riehecky <riehe...@fnal.gov> wrote:
> On 08/18/2012 03:57 PM, David Sommerseth wrote:
>> Hi,
>>
>> I've been running Scientific Linux since the 6.0 days, and single-user mode
>> have basically behaved how I have expected it those few times I needed it.
>> As I usually set up my boxes root accounts with passwords disabled,
>> single-user mode needs to be without root password.
>>
>> Today, after having upgraded from 6.3, I needed to enter single-user mode at
>> boot. And I was asked for a password at boot time. Is this change
>> intentional?
>>
>> # cat /etc/redhat-release
>> Scientific Linux release 6.3 (Carbon)
>> # rpm -qa | grep -i sl_password_for_singleuser | wc -l
>> 0
>> # grep SINGLE /etc/sysconfig/init
>> SINGLE=/sbin/sushell
>>
>> If this change was intentional, how can I go back to the old behaviour? I
>> double checked the behaviour with an old VM with SL6.1, and that behaves as
>> expected.
>>
>>
>> kind regards,
>>
>> David Sommerseth
>
> Hi David,
>
> The behavior shouldn't have changed. You've provided just about all the
> relevant details in your email, so there isn't really anything I want to ask
> for more information.
but I do :-) How did you end up in single user mode? Did you pass "single" to
the kernel, or was there a problem with a filesystem and the system decided to
drop you to a shell?
In the latter case, rc.sysinit in SL < 6.3 unconditionally ran sulogin, which
may explain some of the complaints we had on this list, and this case.
As of 6.3 the rcS-emergency task is started instead. It still defaults to
sulogin, but it's configurable. An EMERGENCY=/sbin/sushell in
/etc/sysconfig/init should do.
Regards,
Stephan
> Can I have you try setting /etc/sysconfig/init => SINGLE to /sbin/sulogin
> rebooting and setting it back to /sbin/sushell? Perhaps something got
> 'stuck' wrong....
>
> /sbin/sushell is a shell script, so can I have you verify its contents? Mine
> looks like:
>
> #!/bin/bash
>
> [ -z "$SUSHELL" ] && SUSHELL=/bin/bash
>
> exec $SUSHELL
>
>
> Pat
--
Stephan Wiesand
DESY - DV -
Platanenallee 6
15732 Zeuthen, Germany
