I am developing an embedded Linux system that uses a compact flash card for storage. I have a little bit of data that needs to be stored to the card, but I do not want the entire disk to be mounted read/write.

So I have made two partitions on the CF card:

  # fdisk -l /dev/sda

  Disk /dev/sda: 261 MB, 261881856 bytes
  16 heads, 32 sectors/track, 999 cylinders
  Units = cylinders of 512 * 512 = 262144 bytes

     Device Boot Start  End  Blocks  Id  System
  /dev/sda1          1   62   15856  83  Linux
  /dev/sda2   *     63  999  239872  83  Linux

My question is this.  If I write to the 16 meg
read-write partition (/dev/sda1), will the writes
be spread across the entire disk by the CF card's
internal wear-leveling?  Or will it spread the
writes only within my 16-meg read-write partition?


Alan




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