LS Pro Debootstrap Howto

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This article describes the procedure to install Debian on a Linkstation Pro or Kurobox Pro by creating a minimal installation on a Linux workstation and transferring it to a Linkstation. Access via serial cable is not required.


To run this procedure you will need a computer with some form of Linux installed on it, preferably Debian or a variant of it such as Ubuntu. The CPU architecture isn't relevant, so if you have another Linkstation with Debian on it that will work fine. Before you start, you need to install two packages: debootstrap and some form of HTTP or FTP server. If you don't have a server installed, I recommend vsftpd.

For these instructions to work your Pro you must be running at least a 2.6.16 kernel, or else the chroot command will not work. I recommend using the latest upstream Linux kernel instead of a Buffalo or Marvell modified one; you can follow these instructions to install a recent one. It is a good idea to adjust the size of your partitions before following this procedure, as the /dev/sda2 partition is very small by default. I suggest making it at least 5 GB. You also need to be using a modified initrd in order to boot the custom distribution.

Create the Stage 1 image

On your Linux workstation, pick a directory that you will stage the Debian install in. For my example I will use /tmp/debian. Become root and use debootstrap to create a minimal Debian installation in this directory:

mkdir /tmp/debian
debootstrap --foreign --arch armel lenny /tmp/debian

Now make a tarball from the installed files:

cd /tmp/debian
tar cvzf ../debian.tar.gz *

Move the tarball to wherever your FTP server serves files from, for example /home/ftp.

Unpack the image and complete the debootstrap process

Now boot your Pro in EM mode and telnet to it. I'm assuming that you want to overwrite the installed system on /dev/sda2. If that's not what you want, don't run the mkfs command. Instead, choose another directory to install to.

I use the ext3 filesystem for this example because it's very likely that your kernel has support for it. If you'd like to use a different filesystem, it's up to you to determine whether the kernel you're using supports it.

Make a new filesystem on /dev/sda2 and mount it. Download the tarball from your FTP server, and unpack the minimal Debian image. Then chroot into it and complete the bootstrap process:

mke2fs -j /dev/sda2
mount -t ext3 /dev/sda2 /mnt/disk1
cd /mnt/disk1
wget ftp://ip.of.ftp.server/debian.tar.gz
tar xvzf debian.tar.gz
chroot /mnt/disk1 /debootstrap/debootstrap --second-stage

The last step may take a while, but you now have a full Debian system installed on your Linkstation. Don't reboot yet, though... we don't have a working system!

Configure the system and install additional software

There are two files that need to be configured before the system will run correctly, /etc/fstab and /etc/network/interfaces. The first describes the layout of filesystems on your disk; the second, as the name implies, configures network interfaces.

After mounting the proc filesystem, you can use chroot to enter the system and modify the configuration files:

mount -t proc proc /mnt/disk1/proc
chroot /mnt/disk1 /bin/bash
vi /etc/fstab
vi /etc/network/interfaces

My suggested /etc/fstab file contains the layout you wound up with if you followed the instructions above.

/dev/sda1    /boot    ext3    noatime    1 2
/dev/sda2    /        ext3    noatime    0 1
/dev/sda5    none     swap    sw         0 0
/dev/sda6    /srv     ext3    noatime    0 0

/srv is the location recommended by the FHS for data stored on the system by and for services such as FTP and Samba. Your partition may be formatted as XFS; if this is the case I recommend changing it to ext3, as XFS has known bugs on the ARM9 platform.

This /etc/network/interfaces will bring up the network device using DHCP.

auto lo eth0
iface lo inet loopback
iface eth0 inet dhcp

You also need to install micro_evtd, which keeps the watchdog timer in the LS Pro happy, adjusts the fan speed for you, and such. The binaries and configuration files for micro_evtd are provided by lb_worm and stored in the downloads area.

cd /
tar xvzpf micro_evtd-20080531.tar.gz
rm micro_evtd-20080531.tar.gz

Next, update the package lists and install sshd so that you can access the Pro over the network after the install is done, and udev, the dynamic /dev manager:

apt-get update
apt-get install ssh udev
invoke-rc.d ssh stop

If you have a serial cable attached and wish to login via that, open /etc/inittab and ensure it has a line that looks like:

T0:23:respawn:/sbin/getty -L ttyS0 115200

Finally, change the root password, set the hostname for the next boot, exit the chroot, unmount the disk, and reboot. Your new system is ready!

echo 'LS-GL' > /etc/hostname
umount /mnt/disk1/proc /mnt/disk1

On reboot, it probably is a good idea to turn recommends off.

as root do -- 
echo "APT::Install-Recommends 0;" >/etc/apt/apt.conf.d/99recommends

Follow @evo's instructions but use your rootfs instead of davy's. I have followed this guide and it works ^^

"@evo I installed lenny and the new kernel directly on a new harddisk without any changes to Uboot. I would reccomend not to play around with the bootloader.

lb_worm's image does not require to change the bootloader, but there comes no kernel with that image. So take a kernel from one of davy_gravy's packages.

What i did to install lenny and a new kernel on my linkstation live:

- install the new HD to your desktop PC (disconnect all the other drives) - start Linux from Live CD (e.g. Knoppix or Parted Magic Live CD: ... ic_live_cd) - open GParted (with knoppix you have to change the blank root password before) - delete all existing partitions on the drive - make new partitions: - sda1: about 100MB format to ext3 - sda2: about 8 GB format to ext3 - sda4: extended - sda5 (below sda4): 500MB Linux swap - sda6 (below sda4): all the rest size format to JFS - do not use any XFS-Filesystem, the newer kernels have problems with that on ARM, my Linkstation didn't boot with xfs - download: ... _24.tar.gz - unzip the archive to the sda2 partition - copy the file boot_options and initrd.buffalo from here ... l%20Lenny/ to the sda 1 partition - create blank files linkstation_release, hddrootmode and rootfs_ok at sda1 (i copied the old files from the former linkstation hdd) - download davy_gravy's image (i used version 0.3, the newer kernel should work as well, but i haven't tested) - go to directory /boot in davy gravy's tgz file - there is a file called uImage-<kernelversion> - copy this file to sda1 and rename it to uImage.buffalo - go to the /lib/modules directory in the tgz file - there is a directory named like the kernelversion (for example - copy this directory (with all subdirectorys) to /lib/modules on sda2, so that it looks like /lib/modules/ - on sda2 have a look at /etc/network/interfaces to configure it to your needs - install the new drive to your linkstation - it should boot up - make a ssh connection and run depmod -a - Have fun with it!"