Boot from SD card is slow

[Peter Toth]

Hi everyone,

Recently converted an SD card for booting FreeBSD 8.2 (amd64). The card
sits in the internal SD card slot of a laptop, The boot loader part
takes ages to load, just loading 1 module take around 20 seconds. To
pass the whole boot loader takes 3 minutes!

I've tested the SD card for r/w speed and it outperformed my USB thumb
drives.

Anyone has any ideas what the cause might might be?

Cheers,
Peter