[nflug] nc multicast

Cyber Source peter at thecybersource.com
Wed Nov 5 13:14:44 EST 2008


Mount your system somewhere with a knoppix cd or whatever, can even 
mount into memory space, cd into the mount point, where you'll be at / 
then, "tar czpf 
/othermountpoint-likeusbdrive-networkmount-whatever/filename.tar.gz ." 
That will create a gzipped tar of your entire system (gzip if you like 
to keep it small, etc.) Remember to think about different partitions, 
/boot, whatever, I like to keep it all on one partition, save the swap 
partition. People will argue this but if I ever want to break it out 
into partitions later, thats easy enough too.
Then take your system your going to do/redo and mount that into memory 
(like /mnt/disk) with a knoppix cd or whatever and then mount your 
filename.tar.gz somewhere else, like /mnt/orig. Then go into /mnt/disk 
and run "tar xzf /mnt/orig/filename.tar.gz". When that's done, unmount 
both and run grub like root (hd0,0) (whereever your /boot is) and setup 
(hd0)(to write to the mbr of the first drive), adjust accordingly to 
your needs.
Formatting, swap, and subsequent tweaks of /etc/fstab, 
/boot/grub/menu.lst and other tweaks are left up to the reader. but 
that's it in a nutshell.

Eric Benoit wrote:
> that sounds awesome can you give me an example?
>
>
> Cyber Source wrote:
>> wow, I use tar and aside from network latency, it generally takes 
>> about 5 min for 5gb, depending on processor speed. I've gotten away 
>> from using networks entirely but that's my situation here. I use a 
>> usb drive to transfer my new "dumps" to a system and usually boot the 
>> thing with either a knoppix cd or usb stick. I even keep a copy of an 
>> updated archives folder for apt, that I transfer into the new system, 
>> this way it doesn't need to download all the packages again (or since 
>> I made the dump), tweak a few UUID's and other settings, and all 
>> good. I've installed entire systems this way in less than 15min 
>> sometimes, all verbatim of the way I like our systems tweaked, ready 
>> to ship out.
>>
>> Eric Benoit wrote:
>>> about 45 min
>>>
>>> Cyber Source wrote:
>>>> video streaming??!!
>>>> I was asking about some sort of benchmark. You said you want to 
>>>> "speed things up" so, I asked for a benchmark, how much data are 
>>>> your transferring for how much time? If one system is 16gb and you 
>>>> image it to another via your network, how long is that taking?
>>>>
>>>> Eric Benoit wrote:
>>>>> I'll tell you what I do but what are the times were talking about? 
>>>>> How much time for how much data?
>>>>>
>>>>> I'm not video streaming?
>>>>>
>>>>> I'm just kind of ghosting 16 gb accross a 100mbs connection to 
>>>>> about 5 machines at a time
>>>>>
>>>>> Cyber Source wrote:
>>>>>> that still didnt answer my question Eric
>>>>>>
>>>>>> Eric Benoit wrote:
>>>>>>> sorry, I meant speed things up by imaging more than one computer 
>>>>>>> at a time
>>>>>>>
>>>>>>> Cyber Source wrote:
>>>>>>>> I'll tell you what I do but what are the times were talking 
>>>>>>>> about? How much time for how much data?
>>>>>>>>
>>>>>>>> Eric Benoit wrote:
>>>>>>>>> zcat ./my.img.gz | nc 192.168.10.10 9000
>>>>>>>>>
>>>>>>>>> nc -l -p 9000 | dd of=/dev/sda
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> I'm using the setup above to image hard drives ...one computer 
>>>>>>>>> at a time ...works great, but I want to speed things up...
>>>>>>>>>
>>>>>>>>> does this look right:
>>>>>>>>>
>>>>>>>>> source(192.168.10.10) image command:
>>>>>>>>> zcat ./my.img.gz | nc -b -p 9000
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> destination command:
>>>>>>>>> nc -l -n 192.168.10.10 -p 9000 | dd of=/dev/sda
>>>>>>>>>
>>>>>>>>> and another destination command:
>>>>>>>>> nc -l -n 192.168.10.10 -p 9000 | dd of=/dev/sda
>>>>>>>>>
>>>>>>>>> and another destination command:
>>>>>>>>> nc -l -n 192.168.10.10 -p 9000 | dd of=/dev/sda
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> nflug mailing list
>>>>>>>>> nflug at nflug.org
>>>>>>>>> http://www.nflug.org/mailman/listinfo/nflug
>>>>>>>> _______________________________________________
>>>>>>>> nflug mailing list
>>>>>>>> nflug at nflug.org
>>>>>>>> http://www.nflug.org/mailman/listinfo/nflug
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> nflug mailing list
>>>>>>> nflug at nflug.org
>>>>>>> http://www.nflug.org/mailman/listinfo/nflug
>>>>>> _______________________________________________
>>>>>> nflug mailing list
>>>>>> nflug at nflug.org
>>>>>> http://www.nflug.org/mailman/listinfo/nflug
>>>>>
>>>>> _______________________________________________
>>>>> nflug mailing list
>>>>> nflug at nflug.org
>>>>> http://www.nflug.org/mailman/listinfo/nflug
>>>> _______________________________________________
>>>> nflug mailing list
>>>> nflug at nflug.org
>>>> http://www.nflug.org/mailman/listinfo/nflug
>>>
>>> _______________________________________________
>>> nflug mailing list
>>> nflug at nflug.org
>>> http://www.nflug.org/mailman/listinfo/nflug
>> _______________________________________________
>> nflug mailing list
>> nflug at nflug.org
>> http://www.nflug.org/mailman/listinfo/nflug
>
> _______________________________________________
> nflug mailing list
> nflug at nflug.org
> http://www.nflug.org/mailman/listinfo/nflug


More information about the nflug mailing list