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====== Sheevaplug ==

Installation of Slackware on a Sheevaplug with MMCard

===== Where to buy ==

http://www.sheevaplug.de/links/16-europaeische-bezugsquellen.html

===== Login ==

To log in you need either a DHCP server for SSH or you have to set up a serial connection. These and everyting necessary described [[http://www.openplug.org/plugwiki/index.php/New_Plugger_How_To|here]]

Default login is ''root / nosoup4u''

===== USB connection ==

For me (on Slack 12.2 and 13.0) it was necessary to ''modprobe ftdi_sio vendor=0x9e88 product=0x9e8f'' before a serial connection with seyon or minicom was possible. [[http://www.openplug.org/plugwiki/index.php/Serial_terminal_program|Source]]

After inserting the kernel module and powering on the Sheevaplug, ''/var/log/messages'' tells that 2 serial device files are created, eg. ''ttyUSB1'' and ''ttyUSB2''. One of them (probably the latter) ist for the serial terminal. Try both!

Establish serial connection with eg: ''screen /dev/ttyUSB1 115200'' (and exit with ''Ctrl-a K''; see also: [[gnu screen]])

===== MMC mount ==

With the off the shelf Ubuntu a SD Card can be mounted on ''/dev/mmcblk0p1''. Note that ''/var/log/messages'' only reports ''/dev/mmcblk0''. You have to inspect the ''/dev'' directory to get the actual device.

===== Installing Slackware ==

Source: [[http://mirror.inode.at/data/armedslack/armedslack-13.37/INSTALL_KIRKWOOD.TXT|INSTALL_KIRKWOOD.TXT]]

Note that it is currently not possible to [[http://lists.armedslack.org/2009-September/000239.html|install Armed on the internal Sheeva NAND Flash]]. You need an MMCard or eSata card. (Used Trascend Ultimate 8GB SDHC Class10, 11,99€)

==== Activate NFS ==

<code bash>
# add to /etc/exports:
/home/export/armedslack 192.168.1.0/255.255.255.0(ro,nohide,root_squash,sync,no_subtree_check)
</code>

<code bash>
# create directory to be exported:
su
mkdir -p /home/export/armedslack
chmod g+w /home/export/armedslack
chgrp users /home/export/armedslack

# start NFS daemon:
chmod +x /etc/rc.d/rc.rpc # check if this line is really necessary
chmod +x /etc/rc.d/rc.nfsd
/etc/rc.d/rc.nfsd restart
</code>

==== Setup TFTP boot server ==

<code bash>
# ucomment in /etc/inetd.conf:
tftp  dgram   udp     wait    root    /usr/sbin/in.tftpd  in.tftpd -s /tftpboot -r blksize
</code>

<code bash>
# create directory to be exported:
su
mkdir /tftpboot
chmod g+w /tftpboot
chgrp users /tftpboot

# start inetd:
chmod +x /etc/rc.d/rc.inetd
/etc/rc.d/rc.inetd restart
</code>

==== Downloading Slackware ARM ==

<code bash>
cd /home/export/armedslack
rsync --exclude '*/source/*' --delete -Pavv ftp.armedslack.org::armedslack/armedslack-13.37 .
# or use a mirror:
rsync --exclude '*/source/*' --delete -Pavv mirror.inode.at::mirror/armedslack/armedslack-13.37 .
</code>
This creates ''/home/export/armedslack/armedslack-13.37''.

Other mirrors are listed in www.armedslack.org/getslack. Note that it is better to use rsync than FTP, because with rsync you can resume an aborted download with reusing already downloaded files.

==== Populating the /tftpboot directory ==

<code bash>
mkdir /tftpboot/armedslack-13.37
cd /home/export/armedslack/armedslack-13.37/

# Copy the Slackware ARM installer:
cp -fav isolinux/uinitrd-kirkwood.img /tftpboot/armedslack-13.37/

# The Linux Kernel:
cp -fav kernels/kirkwood/uImage* /tftpboot/armedslack-13.37/

# The Initial RAM disk, used for booting the OS after installation
cp -fav kernels/kirkwood/uinitrd* /tftpboot/armedslack-13.37/
</code>

Is an uboot update necessary? [[http://www.armedslack.org/maint_kirkwooduboot|Source]]

  Marvell>> version
  U-Boot 1.1.4 (Jul 14 2009 - 06:46:57) Marvell version: 3.4.16

=> U-Boot version is ok, but Marvell version (whatever that is) is outdated FIXME

==== Connecting to the Kirkwood system via the Serial Port ==

A ''screen /dev/ttyUSB1 115200'' is sufficient for me, skipped this section in the source

Log into the Sheevaplug as root and reboot the system. When the system comes up again, hit the enter key several times to get into Uboot.

==== Configuring the Sheevaplug Uboot ==

Get available uboot commands with ''help''. You can scroll in ''screen'' upward with ''Ctl-a ['' and then simply use the arrow keys. End scrolling with ''Ctl-a ]'' [[http://www.tutorials.de/linux-tutorials/151906-einfuehrung-screen.html|Source]]

<code>
Marvell>> printenv ipaddr
ipaddr=10.4.50.165
Marvell>> printenv serverip
serverip=10.4.50.5
Marvell>> printenv arcNumber
## Error: "arcNumber" not defined
Marvell>> printenv mainlineLinux
mainlineLinux=no

Marvell>> setenv ipaddr 192.168.0.99
Marvell>> setenv serverip 192.168.0.7
Marvell>> setenv arcNumber 2097
Marvell>> setenv mainlineLinux yes
Marvell>> saveenv
Marvell>> reset
</code>

==== Slackware ARM installation ==

Plug in the MMC card and type ''mmcinit'' (May not work the first time, so retry):

<code>
Marvell>> mmcinit
SDHC found. Card desciption is:
Manufacturer:       0x1b, OEM "SM"
Product name:       "00000", revision 1.0
Serial number:      1962687311
Manufacturing date: 9/2010
CRC:                0x00, b0 = 0
</code>

<code>
Marvell>> tftpboot 0x01100000 armedslack-13.37/uinitrd-kirkwood.img
Marvell>> tftpboot 0x00800000 armedslack-13.37/uImage-kirkwood
Marvell>> printenv bootargs
[empty]
setenv bootargs console=ttyS0,115200 nodhcp kbd=de root=/dev/ram rw
bootm 0x00800000 0x01100000
</code>

An animated loading sequence comes up. After the first 2 commands
Note that keyboard was set to ''de''. Use your appropriate entry. After ''bootm ...'' the kernel gets uncompressed und you will see the welcome screen of the standard Slackware installation :-) Log in as root.

<code>
# Bring up network:
# (a ping to the sheevaplug should work after this command)
ifconfig eth0 192.168.0.99 netmask 255.255.255.0

# start SSH daemon:
/etc/rc.d/rc.dropbear start
</code>

Now you can log into the Sheevaplug with SSH as user root with no password: ''ssh root@192.168.0.99''. From here use the ssh, not the serial login.

''fdisk -l'' shows your available drive: ''/dev/mmcblk0''. Use ''fdisk'' to partition the drive, cfdisk did not work:

<code>
fdisk /dev/mmcblk0
</code>

Unset DOS Compatibility flag and change display/entry units to sectors:
<code>
Command (m for help): c
DOS Compatibility flag is not set
Command (m for help): u
Changing display/entry units to sectors
</code>

Now with fdisk delete the existing FAT32 partition and set up the following partitions (100MB for /boot, 800MB for swap, the rest for /):

<code>
Command (m for help): p
Disk /dev/mmcblk0: 8011 MB, 8011120640 bytes
...
        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            2048      206847      102400   83  Linux
/dev/mmcblk0p2          206848     1845247      819200   82  Linux swap
/dev/mmcblk0p3         1845248    15646719     6900736   83  Linux
</code>

Set the TERM varialble to linux (why?) and run Slack setup:

  root@slackware:~# TERM=linux setup

Because the following steps are very similar to a normal [[slack_setup_tips|Slack installation]], here only the key points:

  * Keymap: qwertz/de-latin1-nodeadkeys.map
  * Using ''/dev/mmcblk0p2'' as swap
  * Using ''/dev/mmcblk0p3'' :!:  as ''/'' with ext4
  * Using ''/dev/mmcblk0p1'' as ''/boot'' with ext2

<note important>With armedslack-13.37, selection of ''ext2'' was ignored and the ''/boot'' was partition formattet with ''ext4'' anyway! Hence booting the system failed after install. Here is a workaround:
  - Insert the MMCard into a Notbook after installation of armedslack has finished
  - Save the contents of ''/dev/mmcblk0p1''
  - Reformat ''/dev/mmcblk0p1'' with the notebook (''mkfs.ext2 /dev/mmcblk0p1'')
  - Restore the contents of ''/dev/mmcblk0p1''
</note>

  * Install from NFS with ''/home/export/armedslack/armedslack-13.37/slackware'' as source
  * Package selection: Everything except KDEI (=default); mode: full. Installation takes a long time.

==== Booting the Slackware ARM OS ==

Reboot the system with ''reboot'' and enter U-boot once again. 

/*
<code>
Marvell>> printenv bootargs_console
## Error: "bootargs_console" not defined
Marvell>> printenv bootargs_root
bootargs_root=root=/dev/nfs rw
Marvell>> printenv bootcmd
bootcmd=nand read.e 0x800000 0x100000 0x400000; bootm 0x800000
Marvell>> printenv bootcmd_slk
## Error: "bootcmd_slk" not defined
</code>

<code>
Marvell>> printenv bootargs_console
bootargs_console=console=ttyS0,115200
Marvell>> printenv bootargs_root
bootargs_root=ubi.mtd=1 root=ubi0:rootfs rootfstype=ubifs
Marvell>> printenv bootcmd
bootcmd=run bootcmd_mmc; run bootcmd_nand
Marvell>> printenv bootcmd_slk
## Error: "bootcmd_slk" not defined
</code>
*/

<code>
Marvell>>   setenv bootargs_console console=ttyS0,115200
# note changed device file:
Marvell>>   setenv bootargs_root 'root=/dev/mmcblk0p3 waitforroot=10 rootfs=ext4'
Marvell>>   setenv bootcmd 'setenv bootargs $(bootargs_console) $(bootargs_root); run bootcmd_slk ; reset'
# for MMC:
Marvell>>   setenv bootcmd_slk 'mmcinit;ext2load mmc 0:1 0x01100000 /uinitrd-kirkwood;ext2load mmc 0:1 0x00800000 /uImage-kirkwood;bootm 0x00800000 0x01100000'
# save
Marvell>>   saveenv
Marvell>>   reset
</code>

===== Install Go ==

See [[golang]]

===== Pending / Todo ==

  * Check [[http://www.linuxplanet.com/linuxplanet/tutorials/7292/|Un-Bricking Linux Plug Computers]]
  * Check www.plugcomputer.org
  * Check www.computingplugs.com
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