On 9/4/2013 11:01 AM, Kirk Wallace wrote: > On 09/04/2013 08:44 AM, Charles Steinkuehler wrote: >> On 9/4/2013 10:29 AM, Kirk Wallace wrote: >>> On 09/02/2013 05:24 PM, Charles Steinkuehler wrote: >>> ... snip >>>> My blog page with the image download should have enough to get you going >>>> if you have some Linux experience and can figure out the device >>>> representing your SD card reader: >>>> >>>> http://bb-lcnc.blogspot.com/p/machinekit_16.html >>>> >>> >>> I tried installing the BBB image but I got a CRC and untar error after >>> an hour's worth of downloading. I'm a little reluctant to try again. I >>> pay $/GB so I would like to work out the download problem before trying >>> again. Is there any way to download the image in smaller chunks and >>> repair only the bits that break? >>> >>> I have not had any problems with the normal LinuxCNC LiveCD image >>> download. How would the BBB image download be different? >> >> I could setup an rsync server that should let you update your local copy >> with minimal bandwidth usage. BitTorrent might work for this too, but I >> haven't tried resuming a failed http download with a torrent. >> >> Are you comfortable enough with rsync to use it if I setup the server side? >> > > I know very little about torrent and rsync but I can learn. I would hate > to have you go through extra work just for my download. What about using > Git?
Git won't really help you recover a borked download. I've added the latest MachineKit file to my rsync server. To fix your bad file, put it somewhere and cd to that directory. Make sure the file is named: debian-7.1-machinekit-armhf-2013-09-02.tar.xz Then at a command prompt in the same directory as the file run the following (warning, line will wrap...everything below is one command): rsync -Pv mirrors.steinkuehler.net::machinekit/debian-7.1-machinekit-armhf-2013-09-02.tar.xz . This should update your file without transferring too much extra data, depending on what's wrong with the download and how much the rsync diff algorithm can match up. Regardless, if anything goes wrong, you can re-run the rsync command and it will fix things up from that point, and will not re-download anything it already downloaded correctly (the -P switch is short for --partial and --progress, the --partial keeps any intermediate download files around until the process succeeds, so even if you kill the download or unplug your network, it will pick up where it left off). Note this is from my personal IP, so there isn't tons of upstream bandwidth available, but it shouldn't be too slow unless everybody starts downloading via rsync all at once! :) -- Charles Steinkuehler char...@steinkuehler.net
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