Changes between Version 1 and Version 2 of howto/SD_Config/Windows


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Timestamp:
Aug 25, 2012, 9:31:07 PM (12 years ago)
Author:
murphpo
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  • howto/SD_Config/Windows

    v1 v2  
    11=== Windows ===
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    3 A port of dd is available for Windows from XX. We have sucessfully tested verison 0.6b3 on Win 7 64-bit.
     3A port of dd is available for Windows from [http://www.chrysocome.net/dd http://www.chrysocome.net/dd]. We have sucessfully tested verison 0.6beta3 on Win 7 64-bit.
    44
    5 Download dd.exe from the site above. Rename it win-dd.exe (to avoid conflicting with the dd.exe included with XPS) and place it somewhere in your Windows path.
     5Download dd.exe from the site above. Move it to somewhere in your path, then rename it win-dd.exe (this avoids conflicts with the dd.exe distributed with the EDK, which isn't useful for writing SD cards in Windows).
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    77'''Finding the SD card descriptor:'''[[BR]]
    8  1. Insert the SD card. Take note of which drive letter it is assigned.
     8 1. Insert the SD card. Take note of which drive letter it is assigned in Windows Explorer.
    99 1. Open a command prompt and run {{{win-dd --list}}}. The output will be similar to:
    1010{{{
    … …  
    6969 /dev/null   (discard the data)
    7070}}}
    71  3. In this system the SD card is mounted as '''F:''' in Windows Explorer. According to the output above, the corresponding device descriptor is '''\\?\Device\HarddiskVolume7'''.
     71 3. To find the descriptor for the SD card itself (and not its FAT partition):
     72   1. Look in the "Win32 Available Volume Information" section and find the device descriptor for the SD card FAT partition. In this system the SD card mounts as drive '''F:'''. The corresponding descriptor is {{{'''\\?\Device\HarddiskVolume4'''}}}
     73   1. Look in the "NT Block Device Objects" section and find the alias for the same descriptor. In this example, it is:
     74{{{
     75\\?\Device\Harddisk1\Partition1
     76  link to \\?\Device\HarddiskVolume4
     77  Removable media other than floppy. Block size = 512
     78  size is 32002048 bytes
     79}}}
     80   3. Look for the device with the same "Harddisk" number but with "Partition0". In this example, it is:
     81{{{
     82\\?\Device\Harddisk1\Partition0
     83  link to \\?\Device\Harddisk1\DR1
     84  Removable media other than floppy. Block size = 512
     85  size is 1977614336 bytes
     86}}}
     87   4. The block device listed is your SD card descriptor. In this example it is {{{\\?\Device\Harddisk1\Partition0}}}.
     88    * Confirm that the size of the "Partition0" device approximates the capacity of your SD card. The SD card in this example is 2GB (all Mango-supplied cards are 2GB).
     89    * Confirm that your computer's hard drive has a different "Harddisk" number. In this example the C: drive is {{{\\?\Device\Harddisk0}}}
    7290
    73 '''NOTE''': The actual device descriptor on your system is probably different than this example. '''Always''' check the current descriptor before copying to the SD card.
     91'''NOTE''': The actual device descriptor on your system is likely different than this example. The descriptor can also change between reboots. '''Always confirm the current descriptor before copying to the SD card.'''
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