If WinCE has been in suspend mode:
HaRET boot
Shuttingdown hardware
Turning off MMU...
---> device stalls (always)
After hard reset:
<kernel boot>
Waiting 10 sec before mounting root device....
Boot-NFS ...
VFS <via floppy>
VFS: Cannot open root device "mmcblk0" or unknown block(2,0)
Please append ...
Kernel panic....VFS unable to mount...
Sometimes if success (chances seem to be better if hard reset + soft reset)
<6>[ 0.660000] Waiting 10sec before mounting root device...
<6>[ 0.700000] mmcblk0: mmc0:1234 SD02G 1992704KiB
<6>[ 0.710000] mmcblk0: unknown partition table
<6>[ 0.760000] udc: USB reset
<6>[ 1.000000] udc: USB reset
<6>[ 1.120000] udc: USB reset
<6>[ 1.300000] usb0: full speed config #1: 100 mA, Ethernet Gadget, using CDC Ethernet Subset
<4>[ 10.690000] EXT2-fs warning: checktime reached, running e2fsck is recommended
<4>[ 10.810000] VFS: Mounted root (ext2 filesystem).
<6>[ 10.820000] Freeing init memory: 100K
Note the mmcblk0 messages. Each time I see those, boot will be successfull. The "USB reset" is because of the USB cabel connected.