I have got this:

Nokia-N810-51-3:~# cat /proc/partitions
major minor #blocks name

31 0 128 mtdblock0
31 1 384 mtdblock1
31 2 2048 mtdblock2
31 3 2048 mtdblock3
31 4 257536 mtdblock4
254 0 7977472 mmcblk0
254 1 7973376 mmcblk0p1
254 8 1966080 mmcblk1
254 9 1966072 mmcblk1p1
Nokia-N810-51-3:~# df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/mtdblock4 2048 2048 0 100% /mnt/initfs
none 512 144 368 28% /mnt/initfs/tmp
/dev/mtdblock4 257536 218544 38992 85% /
none 512 144 368 28% /tmp
none 1024 20 1004 2% /dev
tmpfs 1024 0 1024 0% /dev/shm
/dev/mmcblk0p1 1962236 1621860 340376 83% /media/mmc2
/dev/mmcblk1p1 7969280 3172704 4796576 40% /media/mmc1

In other words, the sizes for my internal and external cards are swapped. So, doctor, what does it mean? Am I gonna die?