https://wiki.d3xt3r01.tk//index.php?action=history&feed=atom&title=Using_QemuUsing Qemu - Revision history2026-05-05T17:24:21ZRevision history for this page on the wikiMediaWiki 1.45.1https://wiki.d3xt3r01.tk//index.php?title=Using_Qemu&diff=3&oldid=prevAdmin: New page: ==About== Ok .. so my mind was buzzing to make mac os work in qemu .. doesn't work ! :P so don't bother .. here's what I did so far .. this should be usable at any other OS though .. ==St...2009-06-25T18:15:14Z<p>New page: ==About== Ok .. so my mind was buzzing to make mac os work in qemu .. doesn't work ! :P so don't bother .. here's what I did so far .. this should be usable at any other OS though .. ==St...</p>
<p><b>New page</b></p><div>==About==<br />
Ok .. so my mind was buzzing to make mac os work in qemu .. doesn't work ! :P so don't bother .. here's what I did so far .. this should be usable at any other OS though ..<br />
<br />
==Steps==<br />
1) create a disk image ! ( that would replace the regular hdd )<br />
<source lang="bash"><br />
qemu-img create -f qcow2 /media/win_d/Downloads/isos/mac.cow 2000M<br />
</source><br />
<br />
this means create a qcow2 fs ( that would only take as much space as it needs .. it won't create a 2GB file ! ) at mac.cow pwd .. max size 2000M !<br />
<br />
2)<br />
<source lang="bash"><br />
qemu -hda /media/win_d/Downloads/isos/mac.cow -boot d -cdrom /media/win_d/Downloads/isos/file.iso -m 384 -localtime<br />
</source><br />
<br />
which means to load hda in the file we created .. boot from cdrom .. the cdrom being the iso with 384 ram and use the local system time<br />
now .. in linux if you don't have enough space in /dev/shm .. you could use -no-kqemu to disable acceleration or do this:<br />
<source lang="bash"><br />
umount /dev/shm<br />
mount -t tmpfs -o size=400m none /dev/shm<br />
</source><br />
which would create a bigger shm partition ! :)<br />
<br />
3) <br />
<source lang="bash"><br />
qemu -hda /media/win_d/Downloads/isos/mac.cow -boot c -m 384 -localtime<br />
</source><br />
which would tell qemu to boot from the virtual hdd we created :) this would be it <br />
<br />
qemu -h for other options !<br />
<br />
==Other info==<br />
It would be nice of you to install kqemu - the qemu acceleration layer ... Also, if you're on a console only .. use -nographic ... if you want a vnc add -vnc ip:1 ( to start a vnc on display 1 ) and don't use -nographic ( it'll lock ) ... Also if you want to .. you can use -daemonize to be able to reuse the console after it started .. <br />
<br />
==Networking==<br />
If you want your box just to use the internet .. use dhclient inside it to access get the ip ( qemu will act as the dhcp server ) .. no other stuff is necesarry ...<br />
<br />
If not .. you need to do this as root<br />
Be sure to chmod +x /etc/qemu-ifup containing and add -net nic -net tap to qemu<br />
<source lang="bash"><br />
#!/bin/bash<br />
/sbin/ifconfig $1 192.168.10.1 netmask 255.255.255.0 up<br />
sleep 2<br />
</source><br />
Inside the guest do this:<br />
<source lang="bash"><br />
ifconfig eth0 192.168.10.5 netmask 255.255.255.0<br />
</source><br />
You should be able to ping one another .. don't forget to this on the qemu host:<br />
<source lang="bash"><br />
echo 1 > /proc/sys/net/ipv4/ip_forward<br />
</source><br />
and this in the host's gateway<br />
<source lang="bash"><br />
# allow 192.168.10.0 to come from 10.3.0.123 ( my qemu host ip ) via eth0 ( gw eth )<br />
ip ro add 192.168.10.0/24 via 10.3.0.123 dev eth0<br />
# make him exit to the internet with external_ip and whatever comes from the external_ip to go to qemu<br />
iptables -t nat -A POSTROUTING -s 192.168.10.5 -j SNAT --to-source external_ip<br />
iptables -t nat -A PREROUTING -d external_ip -j DNAT --to-destination 192.168.10.5<br />
</source><br />
<br />
Qemu needs to be ran as root in order to be able to access the tap ..<br />
<br />
<br />
Resizing the partition .... from the initial 2000M to 4G<br />
<br />
First step would be to convert the qcow2 disk image to raw format<br />
<source lang="bash"><br />
qemu-img convert -f qcow2 mac.cow -O raw mac.raw<br />
</source><br />
Then resize the raw partition using dd .. it won't harm the file contents .. ( 4096 means 4 G .. you can use 8192 and stuff .. )<br />
<source lang="bash"><br />
dd if=/dev/zero of=mac.raw bs=1M count=0 seek=4096<br />
</source><br />
And last ... convert it back to the qcow2 format so only used blocks would take up space ...<br />
<source lang="bash"><br />
qemu-img convert -f raw mac.raw -O qcow2 newmac.cow<br />
</source><br />
You can now verify<br />
<source lang="bash"><br />
qemu-img info newmac.cow<br />
</source><br />
<br />
==Links==<br />
[http://www.claunia.com/qemu/ HomePage]<br />
<br />
==Results==<br />
So ... you'd have a fully functional virtual machine with whatever settings you want .. hope it helped ..</div>Admin