[GLLUG] questions about embedded devices.

[Peter Christenson]

well it looks like I'm out of luck at the moment.
I am unable to gain root access from ssh, and so I'm going to need to wait
for a time when the system is able to go down for an amount of time. and
see if I can connect a monitor and keyboard to it.

thanks for the excellent Ideas, I will try them as soon as I can


Peter.

On Mon, Mar 25, 2013 at 3:58 PM, Tom Schouten <tom at zwizwa.be> wrote:

> ( Or alternatively, use dd in combination with a netcat  / netcat -l pair
> instead of gzip/ssh in case the machine isn't very fast but has at least a
> 100M network.  But I guess speed is not your problem since it's a one-time
> job. )
>
> The main point being that the "dd" method - as opposed to a file-based
> method like "rsync" -  will also backup the boot loader.
>
> For mounting partitions inside a raw disk image, you might want something
> like this:
> http://madduck.net/blog/2006.**10.20:loop-mounting-**
> partitions-from-a-disk-image/<http://madduck.net/blog/2006.10.20:loop-mounting-partitions-from-a-disk-image/>
>
> (or this:
> http://zwizwa.be/darcs/pool/**bin/plosetup<http://zwizwa.be/darcs/pool/bin/plosetup>
> i had to make some modifications to make it work)
>
>
> On 03/25/2013 03:48 PM, pdwald wrote:
>
>> The following should do it:
>>
>> dd if=/dev/hda bs=1024 | gzip | ssh root at host_ip 'gzip -d | dd
>> of=hda_file.img bs=1024'
>>
>> hda_file.img will be an image (bit by bit) of the hda disk. You may
>> then try to use the image with virtualbox (perhaps the raw image or
>> using  some conversion tool to convert it to a vdi image type, etc).
>>
>>
>> On Mon, Mar 25, 2013 at 2:45 PM, Peter Christenson<pac1.mi at gmail.com>
>>  wrote:
>>
>>> Hi all,
>>>
>>> so I'm working on a device that is for all practical purposes headless.
>>> there is no documentation onsite, and in the next few months I will need
>>> to
>>> change a few conf files.
>>> the service contract has been gone for a few years and so I don't have
>>> access to OEM support at this time.
>>> I am able to ssh into it, and am able to find a bit of information
>>> I believe that its based on redhat, but I don't know...
>>>
>>> what I want to do is copy the entire drive so that (A) I have a backup.
>>> and
>>> (B) I can try and run it in a VE for testing and modification.
>>>
>>> any thoughts and opinions are welcome!!
>>>
>>> this is what I've gotten so far.
>>>
>>>   Linux MTS3L-35 2.6.20.1-rt8-dsa-mts3l-6 #1 PREEMPT Mon Oct 15 16:41:36
>>> CEST
>>> 2007 armv5tel unknown
>>>
>>> BusyBox v1.01-DSA-1 (2007.03.29-10:43+0000) multi-call binary
>>>
>>> dsa at MTS3L-35:/dev$ df
>>> Filesystem           1k-blocks      Used Available Use% Mounted on
>>> /dev/hda1               126263     49883     69861  42% /
>>> /dev/hda3               291366    184006     92315  67% /var
>>> /dev/hda3               291366    184006     92315  67% /dev
>>> /dev/hda3               291366    184006     92315  67% /data
>>> /dev/hda3               291366    184006     92315  67% /root/.ssh
>>> /dev/hda3               291366    184006     92315  67% /home/dsa/.ssh
>>> /dev/hda3               291366    184006     92315  67% /home/tester
>>> /dev/hda3               291366    184006     92315  67% /tmp
>>>
>>>
>>> thanks All
>>> Peter.
>>>
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