Re: Upgrade to Debian testing hosed my system

> "ping beagle" returns the correct IP
The name resolution is done at the /etc/hosts or DNS server level, it has
nothing to do the 'correct box' having the 'correct IP'.
Or being duplicated...

The only way to detect a duplicate IP is by capturing packets and checking
the MAC address. If you knew the MAC address of the box, you can use
'arping' to validate it. 'arping' also has a switch to detect duplicate
addresses, but I'm not familiar with the functionality.
ET





Mark Phillips writes:

> The IP address is the same as before, so I don't think there are any
> collisions. IE, the computer name is beagle, and "ping beagle" returns the
> correct IP address.
>
> I will try the live cd and mnt option to report back.
>
> Thanks,
>
> Mark
>
>
> On Thu, Jan 24, 2013 at 8:57 AM, kitepilot@kitepilot.com <
> kitepilot@kitepilot.com> wrote:
>
>> Weird that you can ping the box and not see anything at boot.
>> I'd try to rule out a duplicate IP address (as stupid as it sounds, been
>> there, done that...)
>> I'd boot the box with a Debian Live CD, then
>> .- mount the box Debian partition to /mnt
>> .- mount --bind /dev /mnt/dev
>> .- chroot /mnt
>> And begin typing 'apt-get update/apt-get upgrade' away as necessary.
>> YMMV...
>> ET
>>
>>
>> Mark Phillips writes:
>>
>>> I used aptitude to upgrade a headless server from Debian stable to Debian
>>> testing. The upgrade did not generate any error messages, but when I
>>> rebooted I could not ssh into the box (connection refused) nor do I get
>>> any
>>> output on a monitor I attached to the box (no signal). Apache does not
>>> appear to be running either on the box (could not connect to the box). I
>>> can successfully ping the box.
>>> Any suggestions on how to fix this this server would be greatly
>>> appreciated!
>>> Thanks,
>>> Mark
>>>
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