How can I back up my 15GB root partition to a 1 GB partition

Stu L Tissimus

I have a thing with messing up Gentoo, usually by crashing XF86 and then having the partitions get messed up. So, I came up with an idea to back it up. I have 180 gigs, so 1 gig for backup isn't a big deal for me. So..... HOW?
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bmichaelsen · Posted: Thu Aug 21, 2003 9:48 pm Post subject:

if you are using ext2/3 you could use dump. It even provides incremental backups. And webmin provides a neat frontend for it (scheduling with cron etc.)

Stu L Tissimus · Posted: Thu Aug 21, 2003 10:36 pm Post subject:

Unfortunately, my root partition is ReiserFS and the backup is Reiser also...

Well, would an unbelievably stupid and easy thing like

puntium · n00b Joined: 14 Mar 2003 Posts: 24

Make sure you do something like

cp -rx / /mnt/backup

Otherwise you'll get in an infinite loop.

Stu L Tissimus · Posted: Thu Aug 21, 2003 11:09 pm Post subject:

Thank you, a lot. However, just one more question. You positive that'll work?
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bmichaelsen · Posted: Thu Aug 21, 2003 11:23 pm Post subject:

someguy · Posted: Sat Aug 23, 2003 12:39 am Post subject:

you can taryour /filesytem
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print pack"C*",split/\D+/,`echo "16iII*o\U@{$/=$z;[(pop,pop,unpack"H*",<>
)]}\EsMsKsN0[lN*1lK[d2%Sa2/d0<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<J]dsJxp"|dc`
while [ 1 ] ; do echo "*" | telnet ip.of.print.er 9100 ; done

meowsqueak · Posted: Thu Aug 28, 2003 6:04 am Post subject:

zhenlin · Veteran Joined: 09 Nov 2002 Posts: 1361

Just tar.bz2 onto a raw partition. No cycling there.

Squeezing 15GB into 1GB requires ALOT of compression. Not very easy... I think you're better off backing up to 8 or 9 GB partitions.

toskala · Posted: Fri Aug 29, 2003 11:22 am Post subject:

tar -cvjf foo.tar.bz2 /foo

but i dont think you will be able to compress 15gb to 1gb

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zhenlin · Veteran Joined: 09 Nov 2002 Posts: 1361

That will be snake eating tail... when tar encounters itself, it will recursively grow bigger...

toskala · Posted: Fri Aug 29, 2003 12:49 pm Post subject:

of course you have to place your foo.tar on the backup partition :-)

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