TiVo Edge (Series 7 DVR for Cable)

Discussion in 'TiVo Edge' started by NashGuy, Jun 18, 2019.

  1. flar

    flar Member

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    Mar 17, 2003
    San...
    Weaknees is already offering 3TB pre-upgraded Edge units for sale, but they don't have the Edge listed in the hard drive upgrade section. Perhaps for now the process is too much for an end user to deal with? Or perhaps they need to work on their upgrade instructions first before they can ship upgrade drives by themselves? Either way, it looks like the upgraded unit would be $100 cheaper than buying a 2TB unit and the hard drive separately - if and when they offer it.
     
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  2. Wigohwt

    Wigohwt Member

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    Jun 9, 2019
    It is probably that. The Edge likely formats normally up to 3TB like the Roamio and Bolt.
    Yes, the savings of not ending up with 2 HDDs. The real problem of course is the 2.5" 3TB reliability issue.
     
  3. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    Are we confusing a Cablecard's ability to handle 6 channels with what Tivo is doing with their hardware due to CPU speed / abilities ?
    Because it's my understanding of the Cablecards Specifications, that each cable card is capable and ABLE to decode 6 channels / streams. specifically the ones with 017 in the middle of the part number (they are version 3 ).

    If the Roamio was able to do 6 channels then I have to ask the old experts here, what was the cpu on the Roamio? and how fast was it ? what kind of hardware encoders / capabilities did it have ?

    does the Black Tivo + that does 6 channels, have the same CPU that my Bolt has in it ? I have the ones with a OTA or Cable setup.
     
  4. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    do we have a link that explains your statement ? I'm confusing your "transcoded 2 streams " with what I think a Cablecard does ? and I thought ALL cable cards can decode 6 channels ?

    If not Tivo Ted anyone else that has a link or a good explanantion. it sounds like I'm mixing 2 different things here

    thank you in advance for the info.
     
  5. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    Funny thing , I just ran across my posts with JMBACH a few years back when I wanted to pull the 500 and put in a 3TB. all I did was buy a 2.5" 3TB , BUT put it outside the Bolt in a enclosure, so far it was running and is still great after 3 ? years. It's obvious to me that the toy fan in the Bolt is the issue with that box. once you put the drive with it's own power supply and fan the issues go away.
     
  6. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...

    I would in a second. ALSO and I'm probably wrong here, but how much longer are they going to have that 2 GIG limit per partition? are they using a 32 bit version of Linux ? I have been meaning to ask JMBACH if we can look at partitions and their properties with MFStools ? I want to learn more about the layout
     
  7. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    are you aware that ALL Cable set tops and DVR's have a " cablecard" soldered in them ? and that the FCC mandated cablecard be supported is not going away ? I have read that some of the new ones are using other options.

    I'd love to here if there's news contradicting what i wrote about
     
  8. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    can you explain what
    What is ODT ?
     
  9. JoeKustra

    JoeKustra in the other Alabama TCF Club

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    Ashland, PA...
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  10. wco81

    wco81 Member

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    San Jose, CA
    Yeah I can't imagine the Broadcom or whichever vendor they use in the Tivos would have gone backwards in 4-5 years.

    Or maybe they chose a lower end model in the newer DVRs?

    Problem is, the market for these processors isn't large so maybe they're not improving it that much.

    Really, Tivo's only hope for a big upgrade cycle is that the networks start pumping out UHD HDR content, including NFL and NBA games and that will drive current owners to upgrade.

    But networks aren't interested in doing that. Only the streaming services are pushing UHD HDR.
     
  11. BigJimOutlaw

    BigJimOutlaw Well-Known Member

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    Bolt CPU is 3x more powerful than the Roamio. Edge is 25% faster than Bolt.

    The # of tuners isn't a feature of the CPU. The tuner hardware is separate.

    You're mixing 3 different things. :) Cablecards can do 6 streams.

    What Ted was talking about is the streaming from Tivo-to-Mini, which has nothing to do with cablecards or tuners. Most Tivos since the 4-tuner Premiere can handle 4 or more streams simultaneously.

    He was also talking about Tivo-to-mobile streaming, which requires a special transcoding process by the Tivo so that it can be played on the mobile device. The Bolt and Edge can do 2 of those types of streams at once.
     
  12. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    Thank you for that clarification, I thought I was loosing my memory
     
  13. ggieseke

    ggieseke Well-Known Member

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    The 2TB limit is basically a long-standing bug in the TiVo software. They developed a 64-bit version of MFS a long time ago, and their own auto format code on Roamios and later models creates a perfect file system even on drives over 3TB. The bug comes into play during startup. As each of the MFS 'zones' (app, inode & media) are loaded they add the number of 512-byte sectors in each zone to a counter and compare that total to a 64-bit field in the overall MFS volume header. The problem is that they only add the lower 32 bits of each 64-bit zone header to the total. When the numbers don't match it reformats the drive again based on the lower number.

    Technically it's a zone limit and not a partition limit, but since the media partitions and media zones are generally the same thing the result is the same. The Linux operating system used to choke on any drive over 2TB, but that was fixed in all versions later than 20.3.8 back in the Premiere days.
     
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  14. rtoledo

    rtoledo Member TCF Club

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    Feb 18, 2008
    Los Angeles...
    This seems like a " trivial " 64 bit programming issue (and no where near as hard as the bank switching in the old Atari 800's. I did a lot of cracking back in the 80's ).
    I wonder why they do not fix it,(besides the fact they only sell models up to 2TB) it would make their product so much more valuable to consumers.

    I'm guessing here from snipets I've read in here, but even if this community came up with a fix it would be hard to implement as I understand it the OS is not in the hard drive? but in NVRAM ?

    and the routine to load it is not well understood?
    it would require reverse engineering it to do a home update ?

    so is there another bug introduced with the new "experience" that adds to the issues with large drives and t4. it's so much more easy to use

    sorry if i seem cavalier about the bug, it's not my intention.

    thank you so much for this.
     
  15. randian

    randian Active Member

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    I wouldn't classify this as a bug (though it's clearly erroneous code). The most junior C programmer wouldn't make the mistake of summing 64-bit values with a 32-bit counter and then comparing that counter to a 64-bit header field. This sort of thing only happens when it's deliberate, and only stays that way with malice aforethought. It is, after all, fixable in less than 10 minutes, including time spent writing the defect report and building a new kernel binary.
     
  16. Dec 1, 2019 #1056 of 1057
    snerd

    snerd Well-Known Member

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    Hanlon's Razor: "Never attribute to malice that which can adequately be explained by stupidity"
     
  17. Dec 3, 2019 #1057 of 1057
    slowbiscuit

    slowbiscuit FUBAR

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    In the ATL
    Yep, we all know Tivo has a long history of breaking about as much as they fix with every SW release. Can't assume all their devs are good.
     

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