Hello there!

>> kernel config was DISKLESS - I only changed it for network card
>> driver.
>> last part of dmesg is:
>> biomask 0 netmask 400 ttymask 402
>> boot device: ep0
>> cannot mount root, error = 49
>> root device (default ep0):
MB> I assume you have the rigth bootparam server running ?

I am using standard rpc.bootparamd from NetBSD-1.4.2 distribution

MB> Do you have "options NFS_BOOT_BOOTPARAM" in the kernel config file ?

No. Because no FAQs or manuals or DISKLESS config file contains info
about these options. Searching sources (I'm not a master in C) I found
opt_nfs_boot.h. This header-file contains
/* option `NFS_BOOT_RWSIZE' not defined */
/* option `NFS_BOOT_OPTIONS' not defined */
/* option `NFS_BOOT_TCP' not defined */
/* option `NFS_BOOT_GATEWAY' not defined */
/* option `NFS_BOOT_BOOTPARAM' not defined */
/* option `NFS_BOOT_BOOTP' not defined */
/* option `NFS_BOOT_DHCP' not defined */.
Now I trying to compile new kernel with this options turned on, but I
doesn't know which of them I need. May be you can tell me? Or is
anywere manual or FAQ about these options?

Thanks for answer,
                  KaB00m