rsync mystery

[Karl Larsen]

Mike Bird wrote:
> On Mon May 19 2008 16:52:06 Karl Larsen wrote:
>   
>> Mike Bird wrote:
>>     
>>>>     Does anyone know why a backup is larger than the original??
>>>>         
>>> Did the backup use both -H and -S?
>>>
>>> IIRC your root partition was about 2.8GB.  Did it backup
>>> other partitions (e.g. /home or /var/run) in addition to
>>> your root partition?
>>>
>>> --Mike Bird
>>>       
>>     I used neither -H or -S it was a simple backup of the entire system.
>> I used this:
>> sudo rsync -av /boot /bin /dev /etc /initrd /lib /proc /root /sbin /sys
>> /tmp /usr : /mnt
>>
>> and that caused the larger than original backup.
>>     
>
> Without -H each multiply-linked file will turn into multiple copies, taking
> up more space.
>
> Without -S the holes in sparse files will be filled with zeroes, taking
> up more space.
>
> --Mike Bird
>
>   
    Thanks Mike I had no idea that was happening. I will check this 
evening and see how huge my regular backup is. It doen't use -S or -H. 
Be interesting.

Karl


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.
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