swriteboot error and sound on XP1000

[Jonathan Riddell <jr@jriddell.org>]

Can anybody help with this error message from swriteboot:

# swriteboot -v /dev/sda bootlx
open bootfile: No such file or directory

aboot.conf contains:
0:3/vmlinuz root=/dev/sda3


and the disk is formatted like this:
3 partitions:
#       start       end      size     fstype   [fsize bsize   cpg]
  a:        2         4         3       ext2
  b:        5        13         9       swap
  c:       14       521       508       ext2



And while I'm asking very beginner questions, how do I get sound
working on an XP1000 using the builtin sound chip?

Many thanks

Jonathan Riddell