Federico Sevilla III writes:
> Unfortunately I don't have an additional hard drive I can use. I don't
> have a tape drive, either. I have a Sony IDE CD-ReWriter in another
> computer, though, and could borrow that. I've never used a CD-ReWriter
> with Linux, though, and don't know if I can use it as a decent backup
> medium. Can anyone help me out? I'm a definite newbie as far as this will
> be concerned.
There is a CD-R howto on linuxdoc.org.
> I was thinking of using something like tar to create 650MB per file
> tarballs. I won't compress the data anymore as that'd probably require me
> to create a tarball of the entire partition first, and then compress that
> and split it up. I don't have temporary space to do something like that.
> Besides, I'd need a LOT of time to compress that amount of data. Plus
> decompressing will use up time, too.
Why use tar at all? Just duplicate the entire filesystems you need to
backup to CD.
> 1. I use tar to create 650MB tarballs of the entirety of the data I need,
> waiting for confirmation before continuing to the next tarball. While tar
> is waiting for confirmation I burn the tarball into the CD, verify the
> contents of the CD by for example copying the entire tarball into another
> computer. Then I delete the tarball and make tar continue to the next. I
> have enough space for 650MB-at-a-time temporary files on the hard drive. I
> don't know how to do this, though, and while I can research how, anybody
> giving me a real-life-tested solution would really be cool. :)
>
> 2. I find out (from you guys and girls, of course) how to use some CD
> roasting software (recommended console roaster?) to copy the data to the
> discs, filling each disc to max and then prompting me for a second. I
> don't know how I can preserve permissions and ownerships, though.
You will have to organize your files into < 650MB directories first. There
is, AFAIK, no way around that. Typically, you create a separate ISO image
file with mkisofs, but you might be able to pipe the data directly into
cdrecord if your machine is fast enough. It's all in the HOWTO.
Clue: Create an index of all the files that go into a CD and place it in
what will be the root dir of the CD. Makes it much easier to find that
missing file.
> PS- I just checked and if I can use up all 650MB of each CD-R I'll need 16
> CD-Rs to back up all my data. That means I'll spend P720 on CD-Rs alone,
> given each disc will cost me P45. Oh well ... sabagay backup na rin ito.
> :-)
Make sure you get decent CD-Rs. For example, we've discovered that BASF
CD-Rs are unreadable if you write them at 4x. Kodak seems to be OK. You
probably want to experiment with a couple of brands first.
Brian
--
Brian Baquiran <[EMAIL PROTECTED]>
http://www.baquiran.com/ AIM: bbaquiran
Work: +63(2)7182222 Home: +63(2) 9227123
I'm smarter than average. Therefore, average, to me, seems kind of stupid.
People weren't purposely being stupid. It just came naturally.
-- Bruce "Tog" Toganazzini
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