SD partitions vs sectors

Peter McClone

Hi,

I am a little confused about the partitions and sectors that should be set up on an SD card for booting a blaze tablet. The steps listed here:

http://www.omappedia.org/wiki/SD_Configuration

seem to indicate that there should be 2 or 3 partitions (boot, rootfs, [media]). However, the steps listed here:

http://www.omappedia.com/wiki/Android_eMMC_Booting

indicate that there should be 8 sectors ( xloader, bootloader, recovery, boot, system, cache, userdata, media).

What's the difference between a partition and a sector? The instructions to set up the partitions are well described, but when I follow them where are the sectors? How can I have the right partitions AND the right sectors? Thank you.

Peter

over 12 years ago

0 Boyko Kazakov over 12 years ago

TI__Genius 10965 points

Hi Peter,

"indicate that there should be 8 sectors ( xloader, bootloader, recovery, boot, system, cache, userdata, media)."

these are not Sectors, these are partiotions as well. Please read

http://en.wikipedia.org/wiki/Cylinder-head-sector to understand what Sector is , and how it is calculated ( how to address physical block of data)

Regards,

Boyko

0 Peter McClone over 12 years ago in reply to Boyko Kazakov

Intellectual 530 points

Thank you for the response Boyko. So can you tell me if there should be 8 or 3 partitions? Thanks,

Peter

0 Boyko Kazakov over 12 years ago in reply to Peter McClone

TI__Genius 10965 points

Hi Peter,

It depends on what are you trying to run on your device, If you need to boot android , the full file-system with all 8 partitions shall be needed. And if you try to use some Linux distro you can achieve that with only two partitions ( boot and root file system)

Regards,

Boyko

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SD partitions vs sectors