Drive Expansion and Drive Upgrade FAQ

Discussion in 'TiVo Series3 HDTV DVRs' started by bkdtv, Oct 19, 2007.

  1. Jan 17, 2013 #9301 of 10437
    tluxon

    tluxon Member

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    What is the benefit in increasing the size of the swap partition and in keeping "all MFS Media partitions at or under 1TB"? Or is that just necessary in order to use the full capacity of a 2TB drive?

    Tell me if I'm understanding you correctly. Since I originally used the MFS Live CD to create the 750GB Tivo Drive, does that mean a little extra space is left at the end which JMFS would then "misuse" (by creating the taboo 17th partition) when using that as my source drive? Is there a workaround for that? Or is that what makes WinMFS a preferred (if not the only) method in my case?

    Since the MFSLive.org forum seems to be inactive, is there anything special I need to do in WinMFS to permit breaking the 1.2TB rule?

    Perhaps my most reliable route would be to use my other THD's 1TB drive as the "1TB middleman" source drive? (although then I don't get to copy the 750GB shows)

    BTW, I have a 2nd PC that is rarely used anymore with a couple free SATA cables I can dedicate to this task. Does that tip the scales in favor of using JMFS at all?
     
  2. Jan 17, 2013 #9302 of 10437
    unitron

    unitron Well-Known Member

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    I do not know for a fact that there is a benefit.

    Once upon a time, back in the days of the Series 1s and 2s, when the 137GB barrier was being overcome, the rule of thumb suggested by those who pioneered putting larger drives in TiVos than TiVo did was 1MB of swap for every 2 GB of drive.

    1 GB of swap on a 2TB drive amounts to about 15 minutes of best quality analog cable video. I consider that cheap insurance.

    There used to be a 1.2 (or thereabouts) TB limit on partition size (that works out to 1 TB binary, where it's 1024 x 1024 x ...), which may no longer be the case with later verisons of the TiVo operating system software, since people using jmfs on Premiere's are adding a single partition whose size is 2TB minus the original 320GB and suffering no ill effects, but again, since I can do it in a way to keep the biggest partition under 1TB and still use all of a 2TB drive, I figure it's cheap insurance.

    You can hook your 750 back up to the PC you used on it originally and boot with the MFS Live cd and run

    pdisk -l /dev/sd"whatever letter corresponds to that drive"

    and see if there is an Apple Free partition.

    (that -l is a lowercase L)

    If so, there's a procedure outlined around here somewhere by a guy upgrading an original OLED S3 that involves a hex editor to remove the last partition and all references to it in the headers of the other partions, and then use jmfs.

    Or you could try using WinMFS to copy the 750 to a 2TB and after it finishes don't say yes when it offers to use the extra space, but back out and then go back and click on mfsadd to see if it won't expand that last MFS media partition into the rest of the drive and try that in the TiVo and if works, great!

    You can also skip MFS Live and just start in WinMFS and click on mfsinfo and it'll show you the partition map.
     
  3. Jan 18, 2013 #9303 of 10437
    ac3dd

    ac3dd New Member

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    I successfully used WinMFS to go straight from 500GB to 1.5TB, with no "middleman". I chose Yes when it asked me if I wanted to expand, then No to the question about limiting the partition size to 1TB, and it created a 1.1TB partition as the last partition, with no empy-space "apple_free" 17th partition after that. It's been running without a reboot since I did the upgrade about 6 weeks ago.
     
  4. Jan 19, 2013 #9304 of 10437
    unitron

    unitron Well-Known Member

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    On a 648 or a 652?
     
  5. Jan 19, 2013 #9305 of 10437
    jmbach

    jmbach der Neuerer

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    I think I figured out one time that the max limit is a little over 2TB soomething like 2.12tb based on the maximum block count available in the apple partition table. If someone ever finds a way of using larger than 512mb blocks on a tivo we could go higher.
    I am not sure a middle drive would be needed to expand an S3. whatever size the initial S3 drive is, any resulting partition size plus the original partition size would be 2TB. Curently my OLED S3 has a 1.6TB MFS partition.

    What would be really great is to figure out how to expand the original MFS partitions to take up 2TB then we can add an external drive for another 2TB.

    Jim
     
  6. Jan 19, 2013 #9306 of 10437
    unitron

    unitron Well-Known Member

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    It depends on whether you're talking decimal bytes or binary bytes.

    Drives are labled with decimal bytes 'cause it makes the number bigger, but some OS things are labeled in binary bytes.

    Curently my OLED S3 also has a 1.6TB MFS partition, but it's been re-booting once or twice a day, so I'm not sure if it's going to work out or not.

    I tried to see if I could get jmfs to work on it, but it refuses to recognize the 648 software as a TiVo drive.

    The middleman approach allowed me to use WinMFS to go from my HD's 160GB drive to a 1TB while increasing the swap partition size, and jmfs allowed me to copy that to a 2TB and expand into it by creating a single 16th partition, and I kept all partitions under 1TB (or 1.2TB) that way.

    Anyone who does not wish to use my method is free to not do so.
     
  7. Jan 19, 2013 #9307 of 10437
    S3-2501

    S3-2501 New Member

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    Just thought I'd post that it's now been six months since I upgraded my OLED S3 (648) with a WD20EURS (details here.) So far the Tivo hasn't missed a thing, even when left on its own for several weeks while I was away on a trip.
     
  8. Jan 19, 2013 #9308 of 10437
    dlfl

    dlfl Cranky old novice

    8,957
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    Jul 6, 2006
    Dayton OH
    So ... you're granting an unlimited license NOT to use your method, correct? What if I do choose NOT to use your method and have a bad experience? Can I blame you? :D
     
  9. Jan 19, 2013 #9309 of 10437
    jmbach

    jmbach der Neuerer

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    The space in the partition table is 4 bytes long so you get 4294967295 total addressable blocks.

    My OLED S3 has not had a single reboot problem yet. It has been about 2 months on the 2TB drive.

    Might check to make sure mounting screws on the motherboard and power supply are snug so that both are grounded well. This solved a reboot problem for me in the past. The other one was replacing all the capacitors in the power supply. (even if they look good) Had a non TiVo DVR respond to that fix.

    Jim
    Sent from my SPH-L710 using Tapatalk 2
     
  10. Jan 19, 2013 #9310 of 10437
    ac3dd

    ac3dd New Member

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    Mar 2, 2002
    648.
     
  11. Jan 19, 2013 #9311 of 10437
    unitron

    unitron Well-Known Member

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    Yes, but only if you can prove that you would not have had a bad experience if you had used my method.

    And if you sent me that 1TB drive after you copied it to the 2TB drive. :D
     
  12. Jan 23, 2013 #9312 of 10437
    MPSAN

    MPSAN Well-Known Member

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    Portland,...
    You guys should be in DC...perhaps Congress. :)
     
  13. Jan 23, 2013 #9313 of 10437
    unitron

    unitron Well-Known Member

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    I've been insulted, disrespected, and reviled, but no one's ever sunk that low before.

    :rolleyes:
     
  14. Jan 24, 2013 #9314 of 10437
    MPSAN

    MPSAN Well-Known Member

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    Sorry! I do think that they are now even below car salesmen! :D
     
  15. Jan 24, 2013 #9315 of 10437
    unitron

    unitron Well-Known Member

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    Right now I think they're rated somewhere below colonoscopies and venereal diseases.
     
  16. Jan 24, 2013 #9316 of 10437
    dlfl

    dlfl Cranky old novice

    8,957
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    Jul 6, 2006
    Dayton OH
    But lower than TWC support for TiVo's? :eek:
     
  17. Jan 24, 2013 #9317 of 10437
    unitron

    unitron Well-Known Member

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    Okay, now that's really hitting below the belt.
     
  18. Jan 26, 2013 #9318 of 10437
    MPSAN

    MPSAN Well-Known Member

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    Portland,...
    OK, to get back on topic, is there any reason that there is no upgrade info on a 75 HR Premiere 4 to make it an XL4, other than a few random posts? There is plenty of info here on our Series 3's and I have all 3 of mine at 1TB, but the Premiere seems vague. TIVO wants $200, and you get the Glow Remote, but a 2TB drive is only about half that.
     
  19. Jan 27, 2013 #9319 of 10437
    HerronScott

    HerronScott Well-Known Member

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    Staunton, VA
    Well this is the sticky on drive upgrades in the Series 3 forum. :)

    Go over to the Tivo Upgrade Center forum and check out the Premiere upgrade topic using jmfs.

    Scott
     
  20. Jan 27, 2013 #9320 of 10437
    unitron

    unitron Well-Known Member

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    Since the TCD648 isn't recognized by jmfs for some reason as a TiVo drive, and it all has to be done with WinMFS, and since WinMFS's mfsadd will expand the 3rd MFS Media partition (which it created earlier), partition 15, into any extra space even though that space is currently marked as an Apple Free partition, is the hex editing step really necessary, or do you just need to be sure you've got version k of the TiVo software on the drive?
     

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