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Any chance JMFS will work on a Roamio?

Discussion in 'TiVo Upgrade Center' started by c-collins, Aug 20, 2013.

  1. BobCamp1

    BobCamp1 Well-Known Member

    May 15, 2002
    I'm thinking they ditched APM entirely and just went to GPT. Why reinvent the wheel? The chipset probably even has native support for it.
  2. jmbach

    jmbach der Neuerer

    Jan 1, 2009
    Could have. Need to get a full DvrBARS backup of one of those drives. It seems that there is some program stub on a flash drive that initializes any drive that gets installed. Some think the OS is on the flash and just the MFS is on the drive, others think the program stub downloads the OS to the drive as well as initializes the MFS on the drive. Will only know once we look.
  3. nooneuknow

    nooneuknow TiVo User Since 2007

    Feb 5, 2011
    Cox Cable...
    Yeah, I posted in the thread that it would really help if the person who did that upgrade did a full DVRBARS backup of the never-booted original drive and sent it over to the DVRBARS author, it would be a great service to the community.

    I got zero replies on that post.
  4. lessd

    lessd Well-Known Member

    Jan 23, 2005
    TiVo may be shipping blank drives with all the new Roamio TiVos so no backup could be made, that would be one cost advantage TiVo has with a self formatting drive system, no preloading of the new hard drives with any software. Just purchase the OEM blank drives and put them in the Roamio.
  5. nooneuknow

    nooneuknow TiVo User Since 2007

    Feb 5, 2011
    Cox Cable...
    True. But with a raw sector-by-sector backup, you can still copy even a blank drive (which will be a ton of zeroes).

    If there is anything on there at all, a raw copy would copy that.

    I'm not disagreeing with you. We just don't know what, if anything, is on a stock drive (for sure).
  6. ggieseke

    ggieseke Well-Known Member

    May 30, 2008
    Yeah, we won't know for sure until we operate. I'd be REALLY curious if a stock Roamio goes through the same "upgrade" as the screenshots posted earlier today of what it does with a raw drive.

    My best guess at this point is that the OS and a backup boot partition could easily be contained on less than 2GB. Personally, I'd put the SQLite database and the /var partition on the hard drive and only keep the OS on flash, but that's just a WAG on my part.

    I will be buying a Plus or Pro in the next few days even though I don't have a cable connection to test it with. We'll figure it out but I wouldn't expect any solid answers to any of these questions for several weeks.
  7. nooneuknow

    nooneuknow TiVo User Since 2007

    Feb 5, 2011
    Cox Cable...
    :up: I would guess, based on some feedback I've been receiving, that the way I come across, I expect all the answers, yesterday... But, I DO know that is unrealistic. That's why I end so many of my posts on the subjects, related to the new product line, with "Only time will tell". I guess a more accurate end line would be "Only time, and people willing to experiment and share the results, will tell"....
  8. unitron

    unitron Active Member

    Apr 28, 2006
    semi-coastal NC
    "Only time, and people willing and able to afford to experiment and share the results, will tell"

    Which is why you won't be hearing about it from me any time soon.

  9. c-collins

    c-collins Member

    Sep 27, 2003
    Brick, NJ

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