chattr

[Steven W. Orr]

On Tue, 28 Jan 2003, Keyser Soze wrote:

=>On Tue, 28 Jan 2003, Steven W. Orr wrote:
=>> I would enormously discourage you from using dd as a backup tool. The 
=>> result of doing that would be something that would contain all blocks in a 
=>> filesystem, regardless of whether thay are allocated or not. And a restore 
=>> operation would only  (almost) work on the original drive that the backup 
=>> came from. And you couldn't do a restore of a single file, only the whole 
=>> filesystem. And there's no way to query the backup for content. And you 
=>> wouldn't be able to restore on a system that didn't support ext2.
=>> 
=>> Common utilities are based on VFS. That's what makes them so common.
=>
=>
=>
=>You are correct in the fact that dd copies all of the blocks in the
=>filesystem(gzip fixes this problem) and that you cannot restore onto a 
=>different filesystem type.
=>
=>But you are incorrect with everything else.  You can query the backup for
=>content, you can restore single files, and you don't have to restore onto
=>the same disk - as long as the replacement disk of equal or greater size.  
=>I do these three things all the time with dd.  Let me know if you want to
=>see how.

I'm asking :-)

-- 
-Time flies like the wind. Fruit flies like a banana. Stranger things have -
-happened but none stranger than this. Does your driver's license say Organ
-Donor?Black holes are where God divided by zero. Listen to me! We are all-
-individuals! What if this weren't a hypothetical question?
-steveo+sig at syslang.net