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[contrib] Update qemu documentation

This commit is contained in:
Michael Brown 2009-02-01 17:35:53 +00:00
parent 4502c04360
commit 0171098212
1 changed files with 11 additions and 18 deletions
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29
contrib/bochs/README.qemu
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@ -1,5 +1,5 @@
Running Etherboot within qemu
=============================
Running gPXE within qemu
========================
Michael Brown <mbrown@fensystems.co.uk>
@ -9,13 +9,10 @@ To get qemu running is fairly simple:
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
svn co svn://svn.savannah.nongnu.org/qemu/trunk qemu
2a. Patch the qemu code. There is currently a bug that causes qemu to
execute Etherboot incredibly slowly. The bug seems to be related
execute gPXE incredibly slowly. The bug seems to be related
to the relative prioritisation of CPU and I/O operations within
qemu. This patch (which I found via Google) isn't a proper fix,
but it does work around the problem:
@ -23,13 +20,9 @@ To get qemu running is fairly simple:
3. Configure qemu with
pushd qemu
./configure --enable-system
./configure --target-list=i386-softmmu,x86_64-softmmu
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
@ -44,7 +37,7 @@ To get qemu running is fairly simple:
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
gPXE, 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.
@ -52,7 +45,7 @@ To get qemu running is fairly simple:
7. As root, restart dhcpd
/etc/init.d/dhcpd restart
8. Build Etherboot floppy disk images and pad to 1.44MB
8. Build gPXE floppy disk images and pad to 1.44MB
pushd ../../src
make bin/rtl8139.pdsk
popd
@ -62,8 +55,8 @@ To get qemu running is fairly simple:
-net nic,model=rtl8139 -net tap,ifname=tap0 \
-boot a -fda ../../src/bin/rtl8139.pdsk
You should see qemu start up, load up Etherboot and attempt to boot
from the network.
You should see qemu start up, load up gPXE and attempt to boot from
the network.
@ -71,8 +64,8 @@ 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
console for gPXE 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