I am trying to boot from USB. did the following steps
1) Delete all usb partitions
2) fdisk /dev/hd0 add -s 1 -b -t 11 -p 20
3) fdisk /dev/hd0 add -s 2 -b -t 77 -p 60
4) dinit -hq -f bios.ifs /dev/hd0t77
5) dloader /dev/hd0t11 /bin/ipl-diskpc1
6) dloader /dev/hd0t77 /bin/ipl-diskpc2

After this when I boot the board from USB, i see this

Boots almost fine but stops after 

 Hit Esc for .altboot............................................................
                      .................

Any help here. I am stuck.

Regards,
Manas