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Thread: ZSYNC question

  1. #1
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    Question ZSYNC question

    So if I have one iso image on my pc and setup zsync only the deltas will be downloaded - correct?

    Do I have to merge the zsync contents with the iso, or is the process 'automatic"?

    If not auto - what is the process?

    TIA
    Pete
    Last edited by pfeiffep; March 30th, 2013 at 12:47 PM. Reason: solved

  2. #2
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    Kubuntu Development Release

    Re: ZSYNC question

    For example, if you have a previous iso file "raring-desktop-amd64.iso" and you want to update to the latest build you can copy the link to the .zsync file and use

    Code:
    zsync -i raring-desktop-amd64.iso http://cdimage.ubuntu.com/daily-live/current/raring-desktop-amd64.iso.zsync
    It will check your local file against the one on the server and then download only the parts that you don't have and create the new iso file. Your old one will be backed up in the same folder.

  3. #3
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    Re: ZSYNC question

    THis is the output I get when running zsync:

    Code:
     ./update_raring
    #################### 100.0% 249.1 kBps DONE     
    
    reading seed file raring-desktop-amd64.iso: ************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************Read raring-desktop-amd64.iso. Target 47.0% complete.      ********
    downloading from http://cdimage.ubuntu.com/daily-live/current/raring-desktop-amd64.iso:
    ##########---------- 53.1% 381.9 kBps         A  
    
    downloading from http://cdimage.ubuntu.com/daily-live/current/raring-desktop-amd64.iso:
    #############------- 68.5% 386.0 kBps         A  
    
    downloading from http://cdimage.ubuntu.com/daily-live/current/raring-desktop-amd64.iso:
    #################### 100.0% 398.7 kBps DONE      
    
    verifying download...checksum matches OK
    used 386629632 local, fetched 435932522
    note the last figure, that is how much was downloaded from the server
    Last edited by cariboo907; March 28th, 2013 at 02:42 AM.

  4. #4
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    Cool Re: ZSYNC question

    Thanks for your informative answers Gavin77 & cariboo907. I'm going to set up zsync tonight

    Follow on question ... When are the daily iso's available for download?

    TIA

  5. #5
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    Re: ZSYNC question

    http://cdimage.ubuntu.com/daily-live/current/

    Just check the date next to the filename to see if it's the one you want.

  6. #6
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    Re: ZSYNC question

    the same directory where the zsync file is .
    http://cdimage.ubuntu.com/daily-live/current/
    if it ain't broke you haven't tweaked it enough

  7. #7
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    Re: ZSYNC question

    Thanks ALL - worked like a champ!

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