Qemu PPC for OSX Installing Qemu system ppc for OSX This guide covers installing and running qemu-system-ppc with Mac OS and OSX PPC guests on OSX hosts. Qemu-system-ppc can run PPC Mac OS 9.0 to 9.2 and PPC OSX 10.0 to 10.5 Requirements. Qemu program. This article describes some of the options useful for configuring QEMU virtual machines. For the most up to date options for the current QEMU install run man qemu at a terminal. It is important to note that the command has changed from qemu to qemu-system-x8664 to launch QEMU as a 64-bit virtual machine. Manual install. The all platforms, GNU MCU Eclipse QEMU is released as a portable archive that can be installed in any location. The archives can be downloaded from GitHub Releases page. Note: For manual installs, the recommended install location is different from the xPack install folder.
QEMU supports networking by emulating some popular network cards (NICs), and establishing virtual LANs (VLAN). There are four ways how QEMU guests can be connected then: user mode, socket redirection, Tap and VDE networking.
- 1User mode networking
- 2TAP interfaces
User mode networking[edit]
If no network options are specified, QEMU will default to emulating a single Intel e1000 PCI card with a user-mode network stack that bridges to the host's network. The following three command lines are equivalent:
To use this network setup with the Linux kernel, you must set the configuration option CONFIG_E1000=y when compiling.
The -net option is superseded by -netdev in newer QEMU versions.[1]
The guest OS will see an E1000 NIC with a virtual DHCP server on 10.0.2.2 and will be allocated an address starting from 10.0.2.15. A virtual DNS server will be accessible on 10.0.2.3, and a virtual SAMBA file server (if present) will be accessible on 10.0.2.4 allowing you to access files on the host via SAMBA file shares.
User mode networking is great for allowing access to network resources, including the Internet. In particular, it allows ssh from the guest to the host. By default, however, it acts as a firewall and does not permit any incoming traffic. It also doesn't support protocols other than TCP and UDP - so, for example, ping and other ICMP utilities won't work.
Redirecting ports[edit]
To allow network connections to the guest OS under user mode networking, you can redirect a port on the host OS to a port on the guest OS. This is useful for supporting file sharing, web servers and SSH servers from the guest OS.
Here is how to set up QEMU with a Windows XP guest sharing files and web pages under user mode networking. TCP port 5555 on the host is redirected to the guest's port 80 (the web server) and TCP port 5556 on the host is redirected to the guest's port 445 (Windows networking):
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NB: When sharing folders from guest to host via Windows networking, you must specify a password for the user that mount will use to login; if you try to use no password, mount will fail with an I/O error.
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TAP interfaces[edit]
QEMU can use TAP interfaces to provide full networking capability for the guest OS. This can be useful when the guest OS is running several network services and must be connected to via standard ports; where protocols other than TCP and UDP are required; and where multiple instances of QEMU need to connect to each other (although this can also be achieved in user mode networking via port redirects, or via sockets).
In QEMU 1.1 and newer the network bridge helper can set tun/tap up for you without the need for additional scripting.
For older versions, setting up a TAP interface is a bit more complicated than user mode networking. It requires installing virtual private networking (VPN) on the host OS, and then establishing a bridge between the host's networking and the virtual network.
Here's how to do it on Fedora 8 with static IP address assignment. https://everself.tistory.com/8. The procedure should be very similar on other Linux distros, and probably not too different on other *nix systems.
TAP/TUN device[edit]
According to tuntap.txt, we create the TAP/TUN device first:
qemu-ifup[edit]
First, set up a script to create the bridge and bring up the TAP interface. We'll call this script /etc/qemu-ifup.
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qemu-ifdown[edit]
You will also need a script to reset your networking after QEMU exits. To be consistent, we'll call it /etc/qemu-ifdown.
Allowing users to call the scripts[edit]
In qemu 1.1 and above just use the helper program, which doesn't require any scripts and can be setuid root.
For older versions, the two scripts above need to be run as the superuser, so that they can modify the network settings of the system. The most convenient way to achieve that is to permit users of QEMU to call the scripts using the sudo command. To set this up, add the following to the file /etc/sudoers:
Starting QEMU with a TAP interface[edit]
Now create a script to start QEMU with a VLAN, and clean up after itself when it exits. This one uses tap0. Specifying script=no tells QEMU to just use the tap device without calling the scripts - we do this so that QEMU can be run as a regular user, not root.
Run that script, and it will create a TAP interface, bridge it to eth0, run QEMU, and drop the bridge and TAP interface again on exit.
Windows Vista and later – Network Location[edit]
Windows Vista and later classify network connections as either public or private. The classification determines the firewall rules that will be applied to that connection. Windows maintains a list of known connections and if it finds a network connection which is not in that list it will prompt the user to indicate whether this is a 'Home', 'Work' or 'Public' network. The network is identified by the MAC address of its default gateway, which QEMU seems to allocate randomly each time it starts. The result is that every time a Windows session is started with QEMU it pops up a window asking you to indicate the 'network location'. This is not normally a serious problem, but it can be annoying.
The solution is to force the netdev interface to always use the same MAC address. QEMU does not appear to provide an option to set this, but it can be set in the ifup script. Using Iproute2, which has superceded ifconfig, the command:
will change the MAC address of the host-side interface to that given, which could be any legal MAC address that is unique within the local network.
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Sockets[edit]
QEMU can connect multiple QEMU guest systems on a VLAN using TCP or UDP sockets.
If this is plugged into the correct slot on the PCB (Which I would guess it would as it has been working fine for a while) then check for dry joints on the light sensor PCB. The PCB is located to the right on the metal fan assembly. Mac 250 krypton service manual pdf.
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To do: |
SMB server[edit]
If the host system has a SMB server installed (SAMBA/CIFS on *nix), QEMU can emulate a virtual SMB server for the guest system using the -smb option. Specify the folder to be shared, and it will be available to the guest as 10.0.2.4qemu (or you can put 10.0.2.4 into the hosts or lmhosts file as smbserver and map to smbserverqemu).
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This isn't strictly necessary, because guests in QEMU can typically access SMB servers in the host environment. It can be quite useful, however, for setting up independent workspaces for each QEMU guest without needing to configure SMB shares for each one.
External links[edit]
- documentation[1]
References[edit]
- ↑'qemu git'. commit message. September 14, 2012. http://git.qemu.org/?p=qemu.git;a=commit;h=08d12022c7f1aba6acccc75150659c6e4c9dff23.