dd and cp -a

[Karl Larsen]

Jacques B. wrote:
>>     Thank you. I used the DD if= of= and it worked just fine. A real
>> experience that worked. I should have no sim-link problems with dd. It
>> just got 150 byte chunks of the from and stuck it in the to.
>>
>>     Today I will put the copy in place of this and make sure it runs ect.
>>
>>
>>
>> --
>>
>>         Karl F. Larsen, AKA K5DI
>>     
>
> Unless you have a 10 gig partition on that 30 gig drive and that you
> are doing a dd of that partition onto the new drive, I am not
> convinced it will work (actually I suspect it will not work - at least
> not properly).  Reason being the partition boundaries on that 30 gig
> drive would not work on the 10, and the # of inodes in the inode table
> on a 30 gig would not work, and I'm sure other stuff would not be the
> same.  And dd being what it is, all those things would be part of the
> bit by bit copy of the first 10 gigs on that 30 gig drive onto the 10
> gig drive.
>
> Browsing your newly created /dev/sdb5 will likely not manifest in any
> problems.  But trying to use it most likely will (if not now, later)
> cause serious problems.
>
> Jacques B.
>
>   
    Well I am about to try. I did have to make sure the partition it was 
going to is larger so it works. It will not work if it is smaller. I 
proved that yesterday :-)

    The new load will be on in about 20 minutes, I hope, and should work.



-- 

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