ZSYNC question

[pfeiffep]

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

[Gavin77]

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

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.

[cariboo]

THis is the output I get when running zsync:

 ./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

[pfeiffep]

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

[Gavin77]

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

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

[ronacc]

the same directory where the zsync file is .
http://cdimage.ubuntu.com/daily-live/current/

[pfeiffep]

Thanks ALL - worked like a champ!