hello, I'm new to this list. here is my question: I would like to synchronize two computers (say the home one and the job one) using zip drives or similar (cdroms, etc), since modem lines are quite slow and expensive (in Italy). I though I could produce the "signature" of files on home computer, store it on a zip, go to job, run rsync to copy the missing or altered files on the disk (possibly in zipped form) and produce the new signature file, and repeat it once at home. I think this could also be seen as a backup system (on cdrom or similia). Is this feasible with rsync? Is there a better approach? Thanks. -- Franco Bagnoli (franchino) <bagnoli@dma.unifi.it> Dipartimento di Matematica Applicata "G. Sansone" - Universita' di Firenze Via S. Marta, 3 I-50139 Firenze, Italy. Tel. +39 0554796422, fax: +39 055471787 GPG Key fingerprint = 169D 9EA5 8FD3 7EDA E43A 9830 255F BCEC 0D63 3728
On Wed, Nov 06, 2002 at 10:14:28AM -0600, Franco Bagnoli wrote:> hello, I'm new to this list. > > here is my question: > > I would like to synchronize two computers (say the home one and the job > one) using zip drives or similar (cdroms, etc), since modem lines are > quite slow and expensive (in Italy). > > I though I could produce the "signature" of files on home computer, store > it on a zip, go to job, run rsync to copy the missing or > altered files on the disk (possibly in zipped form) and produce the new > signature file, and repeat it once at home. > > I think this could also be seen as a backup system (on cdrom or > similia). > > Is this feasible with rsync? Is there a better approach?Rsync itself, no. You could probably build something using librsync (another project). -- ________________________________________________________________ J.W. Schultz Pegasystems Technologies email address: jw@pegasys.ws Remember Cernan and Schmitt
If you can keep two copies of everything, you can use the --write-batch
and --read-batch (if they work)...
you sync your local mirror, take the batch files to the other system, and
apply them to both copies there, then work there. A the end of that run,
you sync that sessions changes and take those batch files back. You'll
have to get them in sync in the first place, and again if you get them out
of sync.
You mention zip drives...
why not have a drive on each system, and do all your work on one disk?
Also, you mention the cost of modem lines... you can't use a regular voice
line?
How far apart are these two systems, physically? Perhaps an 802.11 with
waveguide antennae solution would give you what you a fast, free, mostly
secure link.
Tim Conway
conway.tim@spilihp.com reorder name and reverse domain
303.682.4917 office, 303.921.0301 cell
Philips Semiconductor - Longmont TC
1880 Industrial Circle, Suite D
Longmont, CO 80501
Available via SameTime Connect within Philips, caesupport2 on AIM
"There are some who call me.... Tim?"
Franco Bagnoli <franco.bagnoli@unifi.it>
Sent by: rsync-admin@lists.samba.org
11/06/02 09:14 AM
To: rsync@lists.samba.org
cc: (bcc: Tim Conway/LMT/SC/PHILIPS)
Subject: offline rsync
Classification:
hello, I'm new to this list.
here is my question:
I would like to synchronize two computers (say the home one and the job
one) using zip drives or similar (cdroms, etc), since modem lines are
quite slow and expensive (in Italy).
I though I could produce the "signature" of files on home computer,
store
it on a zip, go to job, run rsync to copy the missing or
altered files on the disk (possibly in zipped form) and produce the new
signature file, and repeat it once at home.
I think this could also be seen as a backup system (on cdrom or
similia).
Is this feasible with rsync? Is there a better approach?
Thanks.
--
Franco Bagnoli (franchino) <bagnoli@dma.unifi.it>
Dipartimento di Matematica Applicata "G. Sansone" - Universita' di
Firenze
Via S. Marta, 3 I-50139 Firenze, Italy. Tel. +39 0554796422, fax: +39
055471787
GPG Key fingerprint = 169D 9EA5 8FD3 7EDA E43A 9830 255F BCEC 0D63 3728
--
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On Wed, Nov 06, 2002 at 10:14:28AM -0600, Franco Bagnoli wrote:> hello, I'm new to this list. > > here is my question: > > I would like to synchronize two computers (say the home one and the job > one) using zip drives or similar (cdroms, etc), since modem lines are > quite slow and expensive (in Italy). > > I though I could produce the "signature" of files on home computer, store > it on a zip, go to job, run rsync to copy the missing or > altered files on the disk (possibly in zipped form) and produce the new > signature file, and repeat it once at home. > > I think this could also be seen as a backup system (on cdrom or > similia). > > Is this feasible with rsync? Is there a better approach?rdiff, part of librsync. There is also pysync, but it's much slower (but easier to understand/modify). -- ---------------------------------------------------------------------- ABO: finger abo@minkirri.apana.org.au for more info, including pgp key ----------------------------------------------------------------------
>>>>> "FB" == Franco Bagnoli <franco.bagnoli@unifi.it> >>>>> wrote the following on Wed, 6 Nov 2002 10:14:28 -0600 (CST)FB> I though I could produce the "signature" of files on home FB> computer, store it on a zip, go to job, run rsync to copy the FB> missing or altered files on the disk (possibly in zipped form) FB> and produce the new signature file, and repeat it once at home. FB> I think this could also be seen as a backup system (on cdrom or FB> similia). FB> Is this feasible with rsync? Is there a better approach? As Donovan Baarda already mentioned, you should probably use rdiff. If you need to do the same thing with multiple files and want to keep track of permissions, new/deleted files, etc., you may want to check out rdiffdir, which is included in the duplicity package. It combines multiple rdiff signatures or deltas in tar format files. See http://www.nongnu.org/duplicity/ for more information or to download. -- Ben Escoto -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 226 bytes Desc: not available Url : http://lists.samba.org/archive/rsync/attachments/20021109/4f8fce08/attachment.bin