Gentoo Linux/SPARC Frequently Asked QuestionsThese are some notes to elaborate on acronyms and terms used in this document. When mentioning SPARC, this refers to the type of sun4x system. SPARC represents the sun4u architecture seen in the UltraSPARC series of systems (Ultras, Blades, SunFires, etc). Older 32-bit systems are no longer supported by the Gentoo/SPARC team. Acronyms: OBP = OpenBoot PROM, SS = SPARCstation. Installation
Hardware
Applications
Miscellaneous
Additional Resources How do I install/use my SPARC over a serial console? First, make sure you do not have a keyboard and monitor plugged in. OBP will use the monitor for output by default if either are plugged in. You will need a null modem cable or a regular serial cable with a null modem adapter to be able to view output. Standard serial port settings:
Below is a list of commonly used programs for viewing a serial console. Check to see if your serial console application has the ability to send a break, as it can be very useful on a SPARC. The break signal on a serial console is the equivalent to issuing the Stop+A command on the keyboard.
This problem is a result of the framebuffer support the Linux kernel loads at boot time, and the modelines available on SPARC systems. Here we will assume your monitor and video card will agree on a resolution of 1024 by 768 at a refresh rate of 60 Hz. In OBP, you can set the resolution by adjusting the setting for output-device. To view the current setting, use the command:
Now, to set this so it will start the display using the above mentioned resolution, we will use the setenv command as follows:
In order for this to take effect, you will need to reset the machine:
Additionally, for users using the onboard video card based on the ATI Mach64 chipset (Ultra 5/10 and Blade 100/150), you will want to append the following to your kernel boot options:
If you are booting from SILO, you can append the above string onto the end of a given boot image. The following example would be if you were booting from the LiveCD.
If you were booting from the network, you would append the string onto the end of the boot net command in OBP as illustrated below:
I'm new to SPARC and am not sure what kernel options to use, HELP! Most of the time, the default kernel options will be acceptable for hardware support. You will need to make sure that virtual memory and /proc filesystem support is enabled in the kernel as instructed in the Installation Handbook. How do I dual boot Gentoo Linux/SPARC with Solaris? Dual booting Gentoo Linux/SPARC and Solaris can be done one of two ways. The two ways are: having both Gentoo Linux/SPARC and Solaris on the same drive, or having them on separate drives. Below are example SILO configurations for each scenario. In the example configs, the following things are assumed: Single Drive Setup:
Separate Drive Setup:
It depends on the type of SPARC, but chances are yes. One exception seems to be the SPARC based laptops from Tadpole, particularly the newer models. If you have a working Tadpole on Gentoo/SPARC, please contact us and let us know the details on the model and anything special needed to get it to work. The Gentoo/SPARC team maintains a hardware compatibility list for SPARC64 systems. In general, support for SPARC64 systems is good enough to allow some users to run it successfully in production environments. 32-bit SPARC systems are no longer supported by the Gentoo/SPARC team. What additional hardware is supported under Gentoo/SPARC? For a list of additionally supported Sun hardware, consult the following list from the UltraLinux homepage - http://www.ultralinux.org/faq.html#q_2_2. A partial list of Sun devices which do NOT currently have support under Gentoo/SPARC or SPARC/Linux in general are:
Also, the Gentoo/SPARC team maintains a list of non-Sun PCI hardware that has been tested on Gentoo/SPARC. To submit additions to the list, email sparc@gentoo.org with the information on the hardware as displayed in the existing hardware list. How do I know which Sparc I have? The UltraLinux FAQ has the answer. First, the reason they all they all have the same setting is due to a value in OpenBoot PROM (OBP). The story goes that in times past, it was assumed that if a host had multiple interfaces, the interfaces would not reside on the same Ethernet and therefore having the MAC address unique to a machine rather than to a NIC wouldn't be a problem. As time went on and different technologies developed, the opposite was proven. As for fixing the issue, there are two ways to it; from OBP and from Linux. The OBP variable local-mac-address? controls this behavior. The following commands will help you to determine what local-mac-address? is set to:
As you'll notice from the samples above, local-mac-address? is set to false. This will cause all interfaces on a SPARC to use the same MAC address. To change this behavior, use either of the commands below (depending on whether you do it from OBP or Linux):
Note that you may need to reboot to see the changes take affect. How do I get Xorg to find a usable modeline on my Ultra 5/10 or Blade 100/150? The ATI Framebuffer normally expects a PC's BIOS to set the Reference Clock speed for the video card. However, on non-x86 architectures, this doesn't happen. So what needs to be done is to set the Reference Clock speed in the /etc/X11/xorg.conf. In the "Device" section of your /etc/X11/xorg.conf, you will want to add a line similar to the following:
Other common speeds are 14.318 MHz and 29.5 MHz. If you have issues you might want to try without a similar setting first. How come package foo is masked on Sparc? Chances are this is due to the fact that none of the Gentoo/SPARC developers have gotten around to testing this yet, and/or the package is currently marked with the ~sparc keyword (meaning it's in a testing phase). If you still want to install the package, you can follow the instructions from the Portage Handbook. How can I help get package foo marked stable? If you want to help ensure a package gets marked stable in a timely fashion, particularly if it's an application with a small userbase (i.e. net-im/bitlbee), install the package and test to make sure it works. If it appears to be working well, feel free to file a bug at http://bugs.gentoo.org and assign it to the Gentoo/SPARC team. This is a bug. Please file a bug report at http://bugs.gentoo.org for the Gentoo/SPARC team indicating what package you tried to emerge, the error message emerge gave you, and the output of emerge --info. I'm interested in becoming more involved with Gentoo/SPARC. How do I go about doing that? The best way is to join the #gentoo-sparc IRC channel on Freenode IRC network irc.freenode.net. This is where all of the developers hang out and talk SPARC (amongst other things). Short of email, this is the best way to get our attention. Also, many users and developers make use of the Gentoo/SPARC forum. This is a good place to ask questions and see what problems have come up before, as well as talk shop about Gentoo/SPARC. Additionally, you can view the bugs for Gentoo/SPARC via the Gentoo Bugzilla. The bugs will be assigned or CCed to sparc@gentoo.org. Are there any currently known bugs/issues with software packages on Gentoo/SPARC? A list of problematic packages can be found at http://dev.gentoo.org/~weeve/problems.html. Here is some info on the Gentoo/SPARC project itself:
Here are links to additional information about SPARC/Linux or SPARCs in general:
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