Partition an SD-Card in Windows?

Discussion in 'Zire 72' started by Jon_J, Feb 1, 2006.

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  1. Jon_J

    Jon_J Mobile Deity

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    I've searched hi and low on google and other forums for an answer to this:
    How do I partition an SD-Card in Windows?
    I know at the Zaurus and linux communities, that linux is capable of this, but nothing mentioned for Windows. I have Win XP, so there isn't any DOS. I do have the command prompt, but I can't use fdisk in this version, the command isn't available.
    I want to get a 4GB SD-Card and make two (2GB) partitions on it. I want to do this in windows so my Palm Zire 72 can access it.

    I know on my Zaurus, I can partition it with FAT and ext2 partitions. (Zaurus is linux).
    Or on a different approach, I would like to make 4 partitions of 1GB each, (3 FAT) and (1 ext2)

    Has anybody had any luck in doing this?
    Thank you,
    Jon
     
  2. Josser

    Josser Mobile Deity

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    Palm's NVFS does not support partitions.

    ( 8(|)
     
  3. holvoetn

    holvoetn Still a moderator ...

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    The question was about SD card, not main memory :rolleyes:
    So this comes down to VFS ...

    And even if PalmOs could do it, Windows can not either for an SD card.
     
  4. raspabalsa

    raspabalsa Brain stuck BogoMipping

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    As far as I know, Windows does not allow you to create multiple partitions on a removable device. I believe there can only be one partition (the primary) on removable devices.

    On XP you have two choices to manage your drives: the management console and the command "diskpart". This last one can be used from the command prompt.
    However, the management console has a useful GUI, and that makes it much easier to use. You can launch the console by tipying "compmgmt.msc" in the run prompt.
     
  5. Jon_J

    Jon_J Mobile Deity

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    I've tried the management console, "partition" is grayed out in properties for an SD card.
    I just dropped to a command line and this is what I get if I type the "help" switch with diskpart:
    ----------------------------------------------------
    I:\>diskpart /?

    Microsoft DiskPart version 5.1.3565

    Copyright (C) 1999-2003 Microsoft Corporation.
    On computer: HOME-P4

    Microsoft DiskPart syntax:
    diskpart [/s <script>] [/?]

    /s <script> - Use a DiskPart script.
    /? - Show this help screen.
    ----------------------------------------------------
    I wonder where I can find this script?
    Back to google...
    Thank you,
    Jon
     
  6. holvoetn

    holvoetn Still a moderator ...

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    Strange ...

    I just plugged an SD card and an external HDD in my laptop to check on this.

    Both show up as external storage devices.

    Using Control Panel - Administrative Tools - Disk Management I can see both disks but for the HDD I do get the option to change the partitions while for the SD card it is grayed out.

    But looking into the details it says the SD card is Removable Storage while the HDD is catalogued as Local Disk ...
     
  7. Jon_J

    Jon_J Mobile Deity

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  8. raspabalsa

    raspabalsa Brain stuck BogoMipping

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    Jon_J, the partition option in the console is grayed because that option is not available for removable drives.
    I can't help you with diskpart, as I said above I use the console. I mentioned it because I felt from your original post that you like to work with the command prompt. Check XP's help, it details all available options with diskpart.

    H, windows treats any hard disk directly connected to the PC as a local disk regardless of the connection used. Well, at least this is true for IDE, S-ATA, USB and parallel connections. I don't know about firewire.

    I think the "removable" attribute is set by the controller in the card reader, cd rom drive, tape, or whatever, but I'm not sure about this.
     
  9. Guest

    Guest Has Bad Feeling About This Super Moderator

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    I think Josser was referring to VFS (Virtual File System, the expansion card memory manager Palm introduced in OS 4.0). I have no firsthand knowledge, but I agree that even if an SD card were partitioned successfully, the Palm would probably see at most one of the partitions.

    I'm not sure if NVFS is also a type of VFS in addition to referring to non-volatile memory, or if he misspoke amid the frequent discussions of Non-VolatileFS on this board.
     
  10. Josser

    Josser Mobile Deity

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    I had read somewhere a long while ago that a handheld would have, depending on hardware, VFS or NVFS but not both. (i.e. only one file system, because two competing file systems tended to crash alot with apps in 'card' and data in 'RAM' so they added VFS to NVFS.)

    Sorry if I mis-spoke.

    ( 8(|)
     
  11. Kettir

    Kettir Palm Pilot Addict

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    I have to ask--where are you finding a 4 gig SD card? Do I understand correctly that the Z72 unable to access that much space and that's why you are trying to partition it?
     
  12. holvoetn

    holvoetn Still a moderator ...

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    Forget about it. It can not be done.

    You can not use a 4 gig card in a Zire72.
    You can not partition an SD card.

    These are just limitations of SD cards and PalmOS for Zire72 (because LD and TX CAN use 4Gb cards :D )
     
  13. Jon_J

    Jon_J Mobile Deity

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  14. Nicolfa

    Nicolfa Mobile Enthusiast

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    You can partition an SD under linux, just as the site says. Now wether Palm will read it is an entirely different question, probably no. I Have a C1000, using a 2gb card as its primary storage. Partitioned into three, swap, fat16 and ext2.
     
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