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blueness 12/08/22 00:14:13 |
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Added: yeeloong.xml |
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Log: |
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Add Lemote Yeeloong Gentoo Desktop documentation |
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Revision Changes Path |
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1.1 xml/htdocs/proj/en/base/mips/yeeloong.xml |
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|
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file : http://sources.gentoo.org/viewvc.cgi/gentoo/xml/htdocs/proj/en/base/mips/yeeloong.xml?rev=1.1&view=markup |
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plain: http://sources.gentoo.org/viewvc.cgi/gentoo/xml/htdocs/proj/en/base/mips/yeeloong.xml?rev=1.1&content-type=text/plain |
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|
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Index: yeeloong.xml |
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=================================================================== |
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE guide SYSTEM "/dtd/guide.dtd"> |
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|
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<guide> |
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<title>Lemote Yeeloong Gentoo Desktop</title> |
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<author title="Author"> |
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<mail link="blueness@g.o">Anthony G. Basile</mail> |
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</author> |
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|
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<abstract> |
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The Lemote Yeeloong Gentoo Desktop aim to provide a ready to install |
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XFCE4 base desktop to the Yeeloong netbook. |
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</abstract> |
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|
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<version>1.0</version> |
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<date>2012-08-19</date> |
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|
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<chapter> |
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<title>Introduction</title> |
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<section> |
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<body> |
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<p> |
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The Lemote Yeeloong netbook is based on a 64-bit little endian MIPS processor, |
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named the loongson2f, and is manufactured by <uri link="http://www.lemote.com/en/"> |
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lemote.com</uri>. It is celebrated as sporting only hardware that respects your |
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freedom, that is, hardware that will run purely with open source software at every |
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level. There are no proprietary binary blobs required to make any hardware work, |
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and even its boot firmware (<uri link="http://www.pmon2000.com/">PMON</uri>) is |
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released under a copyleft licence. As the netbook of choice for Richard Stallman, |
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it is distributed in the United States by <uri link="http://freedomincluded.com/"> |
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Freedom Included</uri>. Take a look at their web site for why the choice of hardware |
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is a political choice and why freedom matters. |
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</p> |
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<p> |
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Th "Lemote Yeeloong Gentoo Desktop" initiative is part of a bigger initiative in Gentoo |
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to support MIPS based systems. We started this because compiling on the Yeeloong is |
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slow enough that it is annoying for the average person to build a useful system from a |
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classical Gentoo stage3 tarball. One could cross compile from a different, faster, |
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architecture; but, that's involved and doesn't always produce the best native code. So, |
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with a prebuilt desktops, we hope to give the end user a quick start to a productive |
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environment that they are (hopefully) mostly happy with. One can always tweak from there. |
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The drawback to this approach is that it does rub against the "Gentoo way" which is to |
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maximize choice, but we still provide a stage3 for those who want --- so choose! |
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</p> |
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<p> |
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Currently the desktop of choice is based on XFCE4. We did not even attemp Gnome |
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or KDE becuase of their bloat, and because much of that software is in a bad state |
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with respect to all MIPS architecture. The bloat, however, was the deciding factor. |
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We can always hack Gnome back into a MIPS friendly state, but on a system with a |
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~600MHz processor with 1GB of RAM, do we really want to follow bloatware development? |
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We may expand into other light desktop systems, like LXDE. Tell us what you want! |
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</p> |
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<p> |
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We are also working with two "flavors" of each desktop, what we call "vanilla" |
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and "hardened". The two are identical in term of what packages they provide, |
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except the hardened image is built using the completely hardened toolchain |
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maintained by the Hardened Gentoo team. The means that all the ELF binaries |
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are ET_DYN (not ET_EXE so their address space is better randomized), have SSP |
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(stack smashing protection against buffer overflows), PIE (position independant |
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executable, also better address space randomization) and FORTIFY_SOURCES=2 |
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(extra hardening of glibc functions). They are also linked relro (relocation |
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read-only) and bind-now to prevent redirection of symbols. |
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</p> |
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<p> |
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Sounds like hardened is a clear winner over vanilla, except that there is a |
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small performance hit. Not anything like i686, but still noticeable. Maybe |
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five to ten percent, but we haven't made a good measure. Also, if you're |
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compiling your own binaries, there may be some exotic breakage with the |
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hardened that you won't get with the vanilla. Again its much rarer than |
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on i686. There, the issue is often poorly written assembly that isn't |
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PIC/PIE friendly, but since you're on a mips64el arch, chances are that |
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that assembly hasn't even been ported, so there's nothing there to break! |
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</p> |
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<p> |
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If you're just an ordinary user, choose hardened. The extra security will |
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outweigh the other factors. |
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</p> |
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<p> |
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We are actively developing and things are in flux --- when it is mature, we |
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will change this paragraph. So, there are some TODOs. But, the most important |
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TODO is you. What should be included and what should not? |
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</p> |
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>Goals</title> |
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<section> |
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<body> |
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<p> |
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The purpose of the "Lemote Yeeloong Gentoo Desktop" initiative is to make |
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ready to install Gentoo based desktops for the Lemote Yeeloong netbook |
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to ease the long process of building a full desktop system from a stage3 |
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tarball. As a secondary goal, it aims to port the hardening toolchains and |
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kernel features currently available in amd64 and x86 to mips architecture. |
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</p> |
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>Installation</title> |
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<section> |
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<body> |
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<p> |
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First, where do you find the images you'll need? Everything you'll need |
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is on the <uri link="http://www.gentoo.org/main/en/mirrors2.xml"> gentoo |
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mirrors </uri>, under experimental/mips/desktop-loongson2f. You'll need two |
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images, the boot image called netboot-yeeloong.img and the desktop image, a simple |
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tarball called desktop-loongson2f-[flavor]-[date].tar.lzma, where the [flavor] |
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is either "hardened" or "vanilla" and [date] is the release date. We'll |
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try to produce a new release every month. As stated above, this is just for |
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XFCE4, but when/if we get more desktops, that will also be make explicit in |
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the image name. |
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</p> |
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<p> |
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So, how do I install it on my Lemote Yeeloong? |
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</p> |
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|
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<ul> |
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<li> |
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Prepare the boot image: Get the file called netboot-yeeloong.img and put |
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it either on a tftp server or a pen drive at some /path/to/. Make sure you |
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prepare the drive with a FAT32, EXT2 or EXT3, but <b>not</b> EXT4 filesystem. |
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PMON doesn't understand EXT4. |
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</li> |
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<li> |
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Boot into a rescue environment: Turn the lemote on and hit the Del key |
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multiple times. You should see a PMON> prompt appear with possibly some |
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trailing garbage characters, usually repeated G's. Backspace over the |
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garbage to delete it. |
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</li> |
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<li> |
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If you are booting off the network with a tftp server, then the enter: |
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<ul> |
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<li>PMON> ifaddr rtl0 [my_ip]</li> |
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<li>PMON> load tftp://[tftp_ip]/path/to/netboot-yeeloong.img</li> |
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<li>PMON> g</li> |
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</ul> |
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Replace [my_ip] with the ip of the lemote yeeloong and [tftp_ip] with the ip of |
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your tftp server. |
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</li> |
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<li> |
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If, however, you want to boot off a pen drive, enter: |
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<ul> |
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<li>PMON> load /dev/fs/ext2@usb0/path/to/netboot-yeeloong.img</li> |
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<li>PMON> g</li> |
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</ul> |
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At this point you'll come up in a ramdisk image with busybox and a few other |
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utilities to get your system ready. Hit enter a couple of times if you don't |
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see a shell prompt right away. |
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</li> |
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<li> |
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Prepare a root partition and mount: |
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<ul> |
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<li>Using fdisk, prepare at least two partitions: |
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<ul> |
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<li>/dev/sda1 - this will be root, give it a generous amount, at least 6GB.</li> |
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<li>/dev/sda2 - this will be swap, give it at least 1GB.</li> |
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</ul> |
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These really are minimal. I use 40GB for root and 4GB for swap. |
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</li> |
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|
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<li>mdev needs to rescan the devices after (re)partioning. You could reboot, |
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but its easier to just do: |
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<ul> |
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<li>mdev -s</li> |
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</ul> |
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</li> |
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|
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<li>Format the partitons: |
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<ul> |
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<li>mkfs.ext3 /dev/sda1 - do not use EXT4 since PMON doesn't understand it</li> |
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<li>mkswap /dev/sda2</li> |
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</ul> |
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</li> |
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|
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<li>Mount it |
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<ul> |
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<li>mkdir -p /mnt/gentoo</li> |
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<li>mount /dev/sda1 /mnt/gentoo</li> |
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</ul> |
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</li> |
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</ul> |
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</li> |
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<li> |
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Download and unpack the tarball images: |
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<ul> |
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<li>cd /mnt/gentoo</li> |
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<li>wget http://[mirror]/gentoo/experimental/mips/desktop-loongson2f/desktop-loongson2f-[flavor]-[date].tar.lzma</li> |
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<li>tar xf desktop-loongson2f-[flavor]-[date].tar.lzma</li> |
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</ul> |
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Replace [mirror] with the FQDN of your favorite Gentoo mirror, replace |
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[flavor] with either "hardened" or "vanilla" and replace [date] with the |
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date of the release. |
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</li> |
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<li> |
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If you changed any of the above values for /dev/sda* then edit the boot.cfg |
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file. It can be found at /mnt/gentoo/boot/boot.cfg. |
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</li> |
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<li> |
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Reboot your yeeloong. PMON should find the kernel, but if it doesn't then enter |
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<ul> |
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<li>PMON> load /dev/fs/ext2@wd0/boot/vmlinuz</li> |
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<li>PMON> g console=tty root=/dev/sda1</li> |
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</ul> |
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</li> |
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<li> |
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Log in and enjoy! |
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<ul> |
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<li>user: gentoo</li> |
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<li>pass: gentoo</li> |
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</ul> |
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or |
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<ul> |
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<li>user: root</li> |
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<li>pass: root</li> |
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</ul> |
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</li> |
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</ul> |
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>Developers</title> |
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<section> |
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<body> |
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<table> |
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<tr> |
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<th>Developer</th> |
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<th>Nickname</th> |
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<th>Role</th> |
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</tr> |
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<tr> |
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<ti>Anthony G. Basile</ti> |
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<ti>blueness</ti> |
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<ti>Lead</ti> |
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</tr> |
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</table> |
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</body> |
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</section> |
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</chapter> |
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|
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<chapter> |
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<title>Bug Reporting</title> |
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<section> |
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<body> |
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<p> |
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Please submit feature requests and bug reports at <uri link="https://bugs.gentoo.org">bugs.gentoo.org</uri> |
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and make your bug a blocker to <uri link="https://bugs.gentoo.org/show_bug.cgi?id=282265">bug #282265</uri>. |
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Assign your bug to mips@g.o. |
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</p> |
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</body> |
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</section> |
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</chapter> |
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</guide> |
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