[ale] Full filesystem backup to CD-R

[Geoffrey]

John Wells wrote:
> Geoffery,
> 
> Doesn't this constrain you to only backing up filesystems that are < one
> cd-r's capacity?  I'm looking for something that will recognize that it
> won't all fit on one cd and split up automatically.  I think with your
> approach, I'd have to verify each time to make sure I wasn't overfilling
> the iso.  Of course, I could be wrong.

As other's have noted, that is correct, I guess I was giving you an 
answer that would have worked 10 years ago. Hmmmm, you know, that's 
gotta be a touchy one as you want to insure that you use as much of the 
cd as possible, yet you certainly don't want to go over the max on that 
puppy.

I wrote a script a while back that did something similar to this (for 
floppies :) ).  Basically it would run through the list of files 
locating the largest one and then the next file that when added to the 
first would come closest to using the max space on the disk. It was 
quite time consuming though, as you run through the list of files quite 
a number of times.  Mind you that was on a 3b2 400, so it REALLY took a 
long time.

That's the kind of approach you're probably looking for though. 
Something like:

for ALLFILES; do

	Find largest file.

	while ! disk full; do
		find next file that when added to current files will not
			max disk out
	done
done


Hmmm sounds like fun, I think I might play with this a while....

> 
> Thanks for your help.
> 
> John
> 
> Geoffrey said:
> 
>>John Wells wrote:
>>
>>>Does anyone know of a good, relatively easy utility that allows the
>>>backing up of filesystems or subsets to CD-R?  I'm looking for
>>>something that won't take days to understand fully or hack to get
>>>working.  I was taking a look at Mondo, but having some issues.
>>>
>>>Anything out there you've used successfully?
>>>
>>mkisofs -T -l -r -o foo.iso /path-to-the-fs-to-backup
>>cdrecord speed=$YOURSPEED dev=$YOURDEV foo.iso
>>
>>Throw that into a shell script and you've got your utility...
>>
>>Doesn't take long to learn and works. :)
>>
>>
>>
>>>Thanks!
>>>John
>>>
>>>
>>>
>>>
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>>>
>>
>>--
>>Until later: Geoffrey		esoteric at 3times25.net
>>
>>I didn't have to buy my radio from a specific company to listen
>>to FM, why doesn't that apply to the Internet (anymore...)?
>>
> 
> 
> 
> 


-- 
Until later: Geoffrey		esoteric at 3times25.net

I didn't have to buy my radio from a specific company to listen
to FM, why doesn't that apply to the Internet (anymore...)?


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