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Re: dev/null only root access - why?



Emanoil Kotsev wrote:

> Sven Joachim wrote:
> 
>> On 2009-09-22 21:23 +0200, Emanoil Kotsev wrote:
>> 
>>> Why does dev/null has rw permissions only for root?
>>>
>>> ls -al /dev/null
>>> -rw-r--r-- 1 root root 0 22 сеп 21,09 /dev/null
>> 
>> This can happen if some program, e.g. an early init script, writes to
>> /dev/null before the device node for it is created.  In this case,
>> redirection (foobar > /dev/null) will create it as a regular file.
> 
> Thanks for your replies.
> I suspect here hibernate!
> I don't know it very well, but I have problems after wake up from supsend
> or hibernate state.
> 
> I have installed 2.6.31 (custom) recently, but don't think this is the
> reason.
> 
>> 
>>> Where do you fix this?
>> 
>> I don't really have an explanation or a solution.  To debug the problem,
>> reboot with init=/bin/bash added to the kernel command line and run the
>> scripts in /etc/rcS.d, one at a time (/etc/rcS.d/Swhatever start).
>> Check /dev/null after each script.
>> 
> After I reboot it looks normal, so may be you are correct. It's either
> some script/hibernate or udev issue.
> 
> It's not that urgent to fix today, but would be nice to have a solution.
> 
> regards
> 

this should be s2disk. tested with same result
using hibernate there is no such issue.



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