I'm confused about the partitions size of a flash memory in my embedded linux device:
/ # cat /proc/partitions major minor #blocks name 240 0 93184 ndda 240 1 85168 ndda1 240 2 7000 ndda2 240 3 1000 ndda3
I know the partitions corresponding to ndda2 and ndda3 were created to have 7000 kB and 1000 kB of size respectively.
I see ndda is 16 kB larger than the sizes of ndda1 + ndda2 + ndda3.
That is, 93184 - (85168 + 7000 + 1000) = 16.
What is responsible for those 16 kB and where can I get to know more about it?
Now, if I mount ndda1 on a directory, called /nand1, I get:
/ # df Filesystem 1k-blocks Used Available Use% Mounted on tmpfs 27044 0 27044 0% /dev/shm /dev/ndda1 84928 64288 20640 76% /nand1
Its size (84928 kB?) is 240 kB less than what is reported by /proc/partitions.
Again, what structure is responsible for that?
The partition was mounted as vfat.