Notification Date: January 9, 2013
Effective Date: Immediately
Product Name: DuoVero Computer-on-Module
Product Number: GUM4430C
Product Revision Number: R3919 and R3920 only
Linux fails to load the root filesystem during boot, presenting symptoms such as kernel hang at “Waiting for rootfs...,” U-Boot message “**Partition 1 not valid on device 0 **” or being able to load the rootfs by physically pressing down on the microSD card slot during boot.
The card detect signal for the DuoVero microSD card slot is inverted as compared to other OMAP4430-based platforms. This discrepancy was masked on DuoVero versions prior to R3919.
Customers with DuoVero COMs with build numbers R3919 or R3920 can apply the following patch to their kernel: http://www.sakoman.com/git/gitweb.cgi?p=linux.git;a=commitdiff;h=bbf4f0f05d4f7b954b258e2e5c3a2faccb34cc99.