Upgrading the Tomato firmware remotely?

Discussion in 'Tomato Firmware' started by ryanlin2002, Feb 8, 2010.

  1. ryanlin2002

    ryanlin2002 Addicted to LI Member

    Hello all,

    Is it possible to upgrade the Tomato firmware remotely on a router that's 200 miles away without losing any existing configuration?

  2. Toastman

    Toastman Super Moderator Staff Member Member

    This is something that everyone is going to deprecate. But yes, you can do it, with rather less risk than most people think. If you have to drive to the site anyway, then you might try it, if it fails, then you haven't lost anything. Most people who maintain that it is completely unreliable simply don't wait long enough for the data to upload. It generally takes 10 minutes or so - or even longer. I have upgraded hundreds of routers this way and have not had any problems.

    This does not take into account the need to erase NVRAM and reconfigure after upgrading between incompatible versions of firmware. You can't erase NVRAM remotely of course, without losing your connection. You can upgrade IF the author of the firmware says it's OK.

    Take a look at this post for more details.

  3. phdeez

    phdeez Addicted to LI Member

    Well sure it's possible, but the question is do you have someone on-site that you could at least walk through uploading the config to if something goes awry?

    It should work fine if you're upgrading from tomato -> tomato... and you don't experience any packet loss while uploading the new firmware.

    I would first download current config and email to the person on the other side. Go through the upgrade process and hope for everything to go smooth. If it doesn't, at least you have a fallback plan.
  4. ryanlin2002

    ryanlin2002 Addicted to LI Member

    Awesome! Thanks a lot.
  5. Toastman

    Toastman Super Moderator Staff Member Member

    It doesn't matter at all if you have packet loss while uploading via TCP. Just so long as you don't disconnect for any reason you are usually OK.

    I have never had it fail, not even once, even when the routers at the far end are in use. Nor have I ever lost the configuration from the router when uploading, they've always come back up OK. I have around 370 routers, and it would not be possible to upgrade onsite, it would take too long.

    Good luck, whatever you decide to do!
  6. ryanlin2002

    ryanlin2002 Addicted to LI Member

    Just did the upgrade. Everything went extremely well. Thanks again :)
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