Alpha does't boot

[TITO LOPEZ CIUDAD <tito@jacob.icmm.csic.es>]

Hello!
We are trying to install slink in an floppyless alpha machine with SRM.

We first boot from dka6 as it's said on documentation. Next we boot with a
generic kernel:
aboot> /boot/generic/linux root=/dev/scd0 load_ramdisk=1 prompt_ramdisk=1
The kernel boots, but then it ask to me to insert the root floppy (that I
haven't, because I have no floppy unit). I push ENTER and the sistem 
halt with a message like this.
HALT CODE RECEIVED

¿How can I install linux without needing a floppy?

-Tito