Basic instructions to get qemu running

contrib/bochs/README.qemu

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+Running Etherboot within qemu
+=============================
+
+Michael Brown <mbrown@fensystems.co.uk>
+
+To get qemu running is fairly simple:
+
+1.  Build the utilities in this directory:
+      make
+
+2.  Get the qemu source code:
+      cvs -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu \
+           login
+      cvs -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu \
+           co qemu
+
+3.  Configure qemu with
+      pushd qemu
+      ./configure --enable-system --enable-profiler 
+      popd
+
+      Note that qemu will not compile with gcc4; if your system's
+      default compiler is gcc4 then specify the path to gcc3 using
+      e.g. --cc=gcc-3.3.6
+
+4.  Build qemu:
+      make -C qemu
+
+5.  As root, set up a TAP virtual network device:
+      /sbin/modprobe tun
+      chmod o+rw /dev/net/tun
+      ./tunctl -u <username> -t tap0
+      /sbin/ifconfig tap0 up 10.254.254.2 netmask 255.255.255.0
+
+6.  As root, add the following fragment to /etc/dhcpd.conf:
+      subnet 10.254.254.0 netmask 255.255.255.252 {
+        range dynamic-bootp 10.254.254.1 10.254.254.1;
+      }
+    You will also need to add in any of your usual declarations for
+    Etherboot, e.g. 'filename "vmlinuz.ltsp";'.  Note that this setup
+    assumes that your DHCP server, TFTP server etc. all live on the
+    machine you are using for running qemu.  If not, then you're on
+    your own.
+
+7.  As root, restart dhcpd
+      /etc/init.d/dhcpd restart
+
+8.  Build Etherboot floppy disk images and pad to 1.44MB
+      pushd ../../src
+      make bin/rtl8139.dsk
+      ./util/dskpad.pl bin/rtl8139.dsk
+      popd
+
+9.  Start qemu
+      ./qemu/i386-softmmu/qemu -L qemu/pc-bios \
+			       -net nic,model=rtl8139 -net tap,ifname=tap0 \
+			       -boot a -fda ../../src/bin/rtl8139.dsk 
+
+You should see qemu start up, load up Etherboot and attempt to boot
+from the network.
+
+
+
+Serial console
+==============
+
+You can use the program "serial-console" to obtain a virtual serial
+console for Etherboot running within qemu.  Run "./serial-console" on
+a spare tty (e.g. a separate xterm window) before starting qemu, and
+ensure that you have enabled CONSOLE_SERIAL in config.h.
+
+When serial-console starts, it will print out the message "Slave pty
+is /dev/pts/XX", where XX is a number.  You need to append the option
+
+   -serial /dev/pts/XX
+
+to the qemu command line.
+
+There is a manual page for "serial-console"; use "man
+./serial-console.1" to view it.