[wellylug] modem and power cuts

Pete Black pete at marchingcubes.com
Wed Jun 8 07:59:35 NZST 2005


Partially damaged? what kind of physical damage would you suggest might 
be responsible for it working fine under root but not as a user 
account?

No, I would venture that either some setting went unsaved due to power 
loss, the BIOS lost its mind after power loss, or that permissions on 
your devices are being incorrectly restored on boot.

What are the permissions on the /dev/modem (or /dev/ttySX) device, and 
are you sure that, for example, device allocations havent changed and 
that kppp under your user account is set up to access say /dev/ttyS0 
when for some reason the modem now appears under /dev/ttyS1 or 
something like that - and root uses /dev/modem by default which gets 
setup automagically?

-Pete


> In the last three weeks, I have had to replace two adsl modems that 
> went through such power surges.  May be partially damaged?
>
> L
>
> krjimh at paradise.net.nz wrote:
>
>> Hi,
>> Can anyone suggest what my modem is doing. After the power cuts 
>> caused by
>> lightning last week my modem can't be opened by kppp from any user 
>> account.
>>
>> However it goes ok from root. I have checked to see if anything has 
>> changed in
>> /etc/groups and nothing has.
>>
>> I can't really see how config files could be altered anyway. As the 
>> modem is
>> working fine I presume it is undamaged, so it should be only 
>> something to  do
>> with permissions?
>>
>> It's a Knoppix3.3 install which has worked well for over a year now. 
>> 5 year old
>> Dynalink hardware modem.
>>
>> Cheers
>>
>> Jim
>>
>>
>>
>
> -- 
> Lindsay Hunter
> Computer Solutions Wellington
> 021 636 826
> fax (04) 934 1730
>
>
>
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