Re: Lenny/armel with Debian kernel on Buffalo Linkstation Pro v2
Hi!
Basically what you meantion is what I have
proposed[0] in my Google Summer of Code
application for the Debian NAS[1] project.
I have also contacted the author of micro_evtd
(lb_worm) and asked for permission to package it.
Cheers,
Per Andersson
[0] http://oshw.org/usr/avtobiff/gsoc/08/debiannas
[1] http://wiki.debian.org/SummerOfCode2008/DebianNAS
On Wed, Apr 9, 2008 at 1:54 PM, Tim Small <tim@buttersideup.com> wrote:
> Hi,
>
> After much wailing and gnashing of teeth, I have a Lenny/armel user-space
> with a stock-ish Debian kernel on a Buffalo Linkstation Pro v2:
>
> ~# grep ^Hardware /proc/cpuinfo && uname -a && cat /etc/debian_version
> Hardware : Buffalo/Revogear Kurobox Pro
> Linux linkstation 2.6.25-rc8-orion5x #2 Sat Apr 5 20:02:55 UTC 2008
> armv5tel GNU/Linux
> lenny/sid
>
> The hardware is pretty cheap now - the "Linkstation Live" version seems to
> be available for $143 and ukp 100 in the US, and UK respectively, according
> to froogle (2xUSB2/1xGigEther/250G SATA/400MHz/128M). I used a Nokia DKU-5
> USB/serial cable for the serial console (3 ukp), but the more widely
> available "Nokia CA-42" should work as well.
>
> I don't think I'll have any time soon to work on the kernel package install
> script etc. but hopefully these notes will be useful when it comes to
> creating this:
>
> A serial console is advised, but not (hopefully) essential for this
> procedure.
>
> For the kernel build, I used the tar ball from
> http://photon.itp.tuwien.ac.at/~mattems/linux-2.6_2.6.25~rc8.orig.tar.gz and
> the debian dir from
> svn://svn.debian.org/svn/kernel/dists/trunk/linux-2.6/debian
>
> I started off with freelink, and replaced the root with lenny/armel using
> deboostrap. Here are the rest of my notes:
>
> These notes assume you are starting with Freelink, and the Buffalo kernel
> image v 2.6.16 (other versions have not been tested).
> n.b. The buffalo "emergency mode" functionality will be lost (as that comes
> from the Buffalo initrd).
>
> . Install Lenny Armel userspace (debootstrap etc.) and micro_evtd (not yet
> Debian packaged, but source available - fan speed control etc.)
>
> . Build Debian kernel 2.6.25-rc8 or later - only the orion5x kernel is
> needed (comment out the rest of the flavours from
> linux-2.6-2.6.25~rc8/debian/config/armel/defines)
>
> . Install the kernel packages, and mkinitramfs, also install the "devio",
> and "uboot-mkimage" packages.
>
> . Make Debian initramfs for the new kernel using mkinitramfs as usual.
>
> . Create the uboot images:
>
> .. Kernel:
>
> devio > mach-change-shim.tmp 'wl 0xe3a01c05,4' 'wl 0xe38110e5,4' && cat
> mach-change-shim.tmp lsboot/vmlinuz-2.6.25-rc8-orion5x > shimmedimage.tmp &&
> mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n
> 'Linux-2.6.25-rc8-orion5x' -d shimmedimage.tmp uImage.buffalo
>
> n.b. devio fixes up the machine ID, and this currently needs to be 0x05e5
> (not 0x0630 etc. until the kernel has been fixed).
>
>
> .. initramfs:
>
> mkimage -A arm -O linux -T ramdisk -C gzip -a 0x00000000 -e 0x00000000 -n
> 'initrd-2.6.25-rc8-orion5x' -d initrd.img-2.6.25-rc8-orion5x initrd.buffalo
>
> .. Modify the boot environment (default boot prevents the initramfs loading
> - the kernel says "checking if image is initramfs...it isn't (bad gzip magic
> numbers); looks like an initrd" - however I'm not really sure why).
> The modified boot environment appears to works with both Debian, and the
> Buffalo kernel+initrd - although I've only tested the 2.6.16 buffalo kernel
> + initrd) - n.b. this can also be done with the serial console, and the
> setenv command. The nvram command is from the original Buffalo initrd (I
> think freelink leaves this mounted on /initrd by default, but if not, you
> can extract this by "dd if=initrd.buffalo.original bs=1 skip=64 | gzip -cd >
> /tmp/initrd.ext2" and then use mount -t ext2 -o loop).
>
> .. Remove the initrd=0x00800040,15M parameter (check that your env look
> like those below), and verify
>
> TestBox-linkstation:/# chroot /initrd
> TestBox-linkstation:/# nvram -c get bootargs_root
> bootargs_root=root=/dev/sda2 rw initrd=0x00800040,15M panic=5
> TestBox-linkstation:/# nvram -c set bootargs_root "root=/dev/sda2 rw
> panic=5"
> >nvram_set:bootargs_root = root=/dev/sda2 rw panic=5
> TestBox-linkstation:/# nvram -c get bootargs_root
> bootargs_root=root=/dev/sda2 rw panic=5
>
> . Install the new uImage.buffalo and initrd.buffalo into /boot
>
> . Reboot.
>
> Cheers,
>
> Tim.
>
>
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