2012-07-22
 

FreeBSD/ARM on AT91SAM9260-EK

My experience and documented findings of how to build FreeBSD/ARM, to run on the Atmel AT91SAM9260-EK.
Actually, I built and booted FreeBSD 9.1-PRERELEASE on the AT91SAM9260-EK, with a custom kernel configuration.

Unlike many of the examples I have seen, the following tutorial makes very few
assumptions about your level of expertise with FreeBSD or its command-line interface.
With reasonable attention to detail, you should be able to achieve similar results,
or transpose this example to suit your needs for a different target board.

First some notes/assumptions about the working environment, based on my configuration:

The functionality using VirtualBox is very similar to actual dedicated hardware;
you should also be able to use a dedicated PC, running FreeBSD 9, with similar results.

Target Board Configuration

At the moment, I have a functional U-Boot already in the DataFlash, which boots into Angstrom Linux (from OpenEmbedded). So, for the moment -- and I apologize -- this is a big assumption, that you have a working U-Boot command prompt on the target. The ethernet cable is attached, and a cross-over cable (null-modem style) connects the 'SERIAL DEBUG PORT' from the board to a PL2303-based USB-to-serial adapter, which is plugged into the Mac host. From the Mac console shell I can start 'screen' as a serial terminal: 
 $ screen /dev/cu.PL2303-00001AFD 115200

Build Machine Configuration

As mentioned, the host system is FreeBSD 9.0 RELEASE. I do all pulling of source code, and all compiles/builds as a normal user, for everything except the install portion (which apparently must be run as root, which is also required for the mounting and formatting of an SD card). This user was created with group 'staff' as primary group, which is consistent with the way Darwin (the BSD-derived kernel beneath Mac OS X) creates its new users. (And I have other incentives for this, since the UID of my VM user also matches my UID on the Mac host, NFS mounts from within the VM are nicely consistent.) For my build machine, this user is the only defined user on the system, other than root, and is also additionally a member of group 'wheel'. 
$ su
Password:
# id dbeattie
uid=502(dbeattie) gid=20(staff) groups=20(staff),0(wheel)

All my work is being done in a folder named '/opt', which is made group-writable and therefore I can do anything as the normal user. The following assumes that your normal user is a member of group 'staff'. If that is not the case, adjust the group name for the following 'chgrp' command. 

# mkdir -p /opt/usr
# chgrp -R staff /opt
# chmod -R g+w /opt
Also required is a functional TFTP server. On FreeBSD, that's usually as simple as adding one line to /etc/rc.conf: 
inetd_enable="YES"
...and defining the folder location to serve up in /etc/inetd.conf: 
tftp    dgram   udp     wait    root    /usr/libexec/tftpd      tftpd -l -s /opt/tftpboot
tftp    dgram   udp6    wait    root    /usr/libexec/tftpd      tftpd -l -s /opt/tftpboot
Note that the server points to a location inside '/opt'.

Pulling the Sources In

You'll probably want to use an optimal server to pull the sources; the package 'fastest_cvsup' can determine that. To install the 'fastest_cvsup' package: 
# pkg_add -r fastest_cvsup

The inline version below assumes the USA. For other countries, try running it externally: 

fastest_cvsup -q -c all
... or use a specific country code as argument to '-c'.

Now, back to the normal user, and let's get going! 

# exit
$ mkdir -p /opt/9stable
$ cd /opt/9stable
$ echo "*default host=`fastest_cvsup -q -c us`" > ./9stable.supfile
$ cat >> ./9stable.supfile << EOF
# *default host=cvsup4.us.freebsd.org
*default base=/opt/9stable/var/db
*default prefix=/opt/9stable/usr
*default tag=RELENG_9
*default release=cvs delete use-rel-suffix
*default compress
src-all
# ports-all
EOF
Create the working folders, and pull in the source code. 
$ mkdir -p /opt/9stable/usr
$ mkdir -p /opt/9stable/var/db
$ csup ./9stable.supfile
This last command can take a long time, even hours, depending on your network speed. (And I usually walk away, and relax for a while.)

Building 'world' and 'kernel'

One minor detail: the kernel configuration files. Both of the following (downloadable) must be present in /opt/9stable/usr/src/sys/arm/conf/
So, if you actually try this, be sure to download these and place on the build machine in that folder.
Note that these files will look funny if you load them in a browser. Don't worry -- they have line breaks in FreeBSD.

Let's begin the build... 

$ export MAKEOBJDIRPREFIX=/opt/9stable/obj
$ cd /opt/9stable/usr/src
$ make ARCH=arm TARGET_ARCH=arm buildworld
$ make ARCH=arm TARGET_ARCH=arm KERNCONF=AT91SAM9260EK buildkernel
This will also take some time -- especially the 'buildworld'. 

$ su
Password:
# echo $MAKEOBJDIRPREFIX
/opt/9stable/obj
# #[ Clean out DESTDIR if needed; must do a few special things based on file modes and existence of dot files ]
# find /opt/tftpboot | xargs chflags -R noschg
# chmod -R u+w /opt/tftpboot/*
# rm -rf /opt/tftpboot/*
# find /opt/tftpboot/ -type f -exec rm {} \;

# mkdir -p /opt/tftpboot
# make TARGET=arm TARGET_ARCH=arm KERNCONF=AT91SAM9260EK installkernel DESTDIR=/opt/tftpboot 2>&1 | tee ./installkernel-log.txt
# make TARGET=arm TARGET_ARCH=arm KERNCONF=AT91SAM9260EK installworld DESTDIR=/opt/tftpboot 2>&1 | tee ./installworld-log.txt
# du -sh /opt/tftpboot/
238M    /opt/tftpboot/

#[ Careful with this...; first two prompts I chose 'l' for delete/link, last 3 answered 'y' for yes ]
# mergemaster -m /opt/9stable/usr/src/etc -D /opt/tftpboot -i -A arm   2>&1 | tee ./mergemaster-log.txt
# du -sh /opt/tftpboot/
243M    /opt/tftpboot/
Create the mount table 
# echo "# Device        Mountpoint      FStype  Options Dump    Pass#" > /opt/tftpboot/etc/fstab
# echo "/dev/mmcsd0s1   /               ufs     rw      0       0"  >> /opt/tftpboot/etc/fstab

# cat /opt/tftpboot/etc/fstab
Create default configuration, including host name, DHCP, SSH time client: 
# echo "hostname=arm9freebsd.hytherion.local" > /opt/tftpboot/etc/rc.conf
# echo "ifconfig_ate0=\"DHCP\"" >> /opt/tftpboot/etc/rc.conf
# echo "sshd_enable=\"YES\"" >> /opt/tftpboot/etc/rc.conf
# echo "ntpd_enable=\"YES\"" >> /opt/tftpboot/etc/rc.conf
# echo "ntpdate_enable=\"YES\"" >> /opt/tftpboot/etc/rc.conf
# echo "ntpdate_hosts=\"in.pool.ntp.org\"" >> /opt/tftpboot/etc/rc.conf

# cat /opt/tftpboot/etc/rc.conf
We must also set up the target SD card to receive the root file system. The following assumes a USB-based SD/MMC card reader which appears on the FreeBSD build machine as /dev/da0
Note: my card is a 16GB Kingston Class 4 SD-HC, inserted in a SanDisk MobileMate reader. 
# ls -lt /dev/da*
crw-r-----  1 root  operator    0,  97 Jul 21 21:55 /dev/da0
# dd if=/dev/zero of=/dev/da0 bs=1k count=100
# fdisk -BI /dev/da0
******* Working on device /dev/da0 *******
fdisk: invalid fdisk partition table found
# ls -lt /dev/da*
crw-r-----  1 root  operator    0,  97 Jul 21 21:56 /dev/da0
crw-r-----  1 root  operator    0,  94 Jul 21 21:56 /dev/da0s1
# newfs /dev/da0s1
/dev/da0s1: 14825.6MB (30362784 sectors) block size 32768, fragment size 4096
        using 21 cylinder groups of 740.00MB, 23680 blks, 47360 inodes.
super-block backups (for fsck -b #) at:
 192, 1515712, 3031232, 4546752, 6062272, 7577792, 9093312, 10608832, 12124352, 13639872, 15155392, 16670912, 18186432, 19701952, 21217472, 22732992, 24248512, 25764032,
 27279552, 28795072, 30310592
# mkdir -p /mnt/usbmc
# mount /dev/da0s1 /mnt/usbmc/
# mount | grep da0s1
/dev/da0s1 on /mnt/usbmc (ufs, local)
# #[ confirm free space available on the mounted SD card partition]
# df -h /mnt/usbmc
Filesystem    Size    Used   Avail Capacity  Mounted on
/dev/da0s1     14G    8.0k     13G     0%    /mnt/usbmc

# #[ now get a copy of everything as a root file system into the SD card partition]
# tar -cf - -C /opt/tftpboot/ . | tar -xvpf - -C /mnt/usbmc/
# #VERY IMPORTANT -- UNMOUNT IT PROPERLY:
# umount /mnt/usbmc
# #[ Final check of the file system; should report 'FILE SYSTEM IS CLEAN' ]
# fsck -t ufs /dev/da0s1
. . . now, insert the SD card into AT91SAM9260-EK slot, underside, and power up into U-Boot (assumed in DataFlash already) 
RomBOOT
>

U-Boot 1.3.4 (Mar  9 2010 - 19:30:19)

DRAM:  64 MB
NAND:  256 MiB
DataFlash:AT45DB642
Nb pages:   8192
Page Size:   1056
Size= 8650752 bytes
Logical address: 0xD0000000
Area 0: D0000000 to D00041FF (RO) Bootstrap
Area 1: D0004200 to D00083FF      Environment
Area 2: D0008400 to D0041FFF (RO) U-Boot
Area 3: D0042000 to D0251FFF      Kernel
Area 4: D0252000 to D083FFFF      FS
In:    serial
Out:   serial
Err:   serial
Net:   macb0
macb0: Starting autonegotiation...
macb0: Autonegotiation complete
macb0: link up, 100Mbps full-duplex (lpa: 0x45e1)
Hit any key to stop autoboot:  0 
U-Boot>

Booting the Kernel

By entering/pasting a one-liner sequence of commands into U-Boot, the newly-built kernel will be fetched via TFTP from the build machine, and then executed directly in memory. This is similar to what the bootloader would do from a disk; the source just happens to be a TFTP server.

Your device IP address and server IP (host machine) address may be different; make adjustments to the following U-Boot command: 

U-Boot> setenv ipaddr 192.168.0.116 ; setenv serverip 192.168.0.115 ; tftpboot 0x20000000 boot/kernel/kernel; go 0x200000E0
... and away it goes, booting up. Note that this is the system's very first boot, so it also creates the SSH keys and likely does a few extra things for its first time.

here's the console output: 
U-Boot> setenv ipaddr 192.168.0.116 ; setenv serverip 192.168.0.115 ; tftpboot 0x20000000 boot/kernel/kernel; go 0x200000E0
macb0: link up, 100Mbps full-duplex (lpa: 0x45e1)
Using macb0 device
TFTP from server 192.168.0.115; our IP address is 192.168.0.116
Filename 'boot/kernel/kernel'.
Load address: 0x20000000
Loading: #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         ###############
done
Bytes transferred = 12617505 (c08721 hex)
## Starting application at 0x200000E0 ...
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2012 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.1-PRERELEASE #0: Sat Jul 21 21:08:16 MDT 2012
    dbeattie@freebsd02vm.hytherion.local:/opt/9stable/obj/arm.arm/opt/9stable/usr/src/sys/AT91SAM9260EK arm
CPU: ARM926EJ-S rev 5 (ARM9EJ-S core)
  DC enabled IC enabled WB enabled LABT
  8KB/32B 4-way Instruction cache
  8KB/32B 4-way write-back-locking-C Data cache
real memory  = 67108864 (64 MB)
avail memory = 52916224 (50 MB)
CONFIG: invalid hint 'hint.ohci.at=asb'
CONFIG: invalid hint 'hint.ohci.maddr=0x00500000'
atmelarm0:  on motherboard
at91sam92600:  on atmelarm0
at91_pmc0:  mem 0xdffffc00-0xdffffcff irq 1 on atmelarm0
at91_pmc0: Primary: 18432000 Hz PLLA: 198 MHz CPU: 198 MHz MCK: 99 MHz
at91_wdt0:  mem 0xdffffd40-0xdffffd4f irq 1 on atmelarm0
at91_wdt0: Watchdog disabled! (Boot ROM?)
at91_rst0:  mem 0xdffffd00-0xdffffd0f irq 1 on atmelarm0
at91_rst0: Reset cause: Power On.
at91_pit0:  mem 0xdffffd30-0xdffffd39 irq 1 on atmelarm0
Timecounter "AT91SAM9 timer" frequency 6208000 Hz quality 1000
at91_pio0:  mem 0xdffff400-0xdffff5ff irq 2 on atmelarm0
at91_pio0: ABSR: 0x3e400c3b OSR: 0 PSR:0xc00002c4 ODSR: 0
at91_pio1:  mem 0xdffff600-0xdffff7ff irq 3 on atmelarm0
at91_pio1: ABSR: 0 OSR: 0 PSR:0xc03f3f0f ODSR: 0
at91_pio2:  mem 0xdffff800-0xdffff9ff irq 4 on atmelarm0
at91_pio2: ABSR: 0x800 OSR: 0x4800 PSR:0xfbcf ODSR: 0x4800
at91_twi0:  mem 0xdffac000-0xdffaffff irq 11 on atmelarm0
iicbus0:  on at91_twi0
setting cwgr to 0x11110
iic0:  on iicbus0
at91_mci0:  mem 0xdffa8000-0xdffabfff irq 9 on atmelarm0
mmc0:  on at91_mci0
uart0:  mem 0xdffff200-0xdffff3ff irq 1 on atmelarm0
uart0: console (115200,n,8,1)
uart1:  mem 0xdffb0000-0xdffb3fff irq 6 on atmelarm0
uart2:  mem 0xdffb4000-0xdffb7fff irq 7 on atmelarm0
uart3:  mem 0xdffb8000-0xdffbbfff irq 8 on atmelarm0
uart4:  mem 0xdffd0000-0xdffd3fff irq 23 on atmelarm0
uart5:  mem 0xdffd4000-0xdffd7fff irq 24 on atmelarm0
uart6:  mem 0xdffd8000-0xdffdbfff irq 25 on atmelarm0
ate0:  mem 0xdffc4000-0xdffc7fff irq 21 on atmelarm0
miibus0:  on ate0
ukphy0:  PHY 0 on miibus0
ukphy0:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
ate0: Ethernet address: 3a:1f:34:08:54:54
ohci0:  mem 0xdfc00000-0xdfcfffff irq 20 on atmelarm0
usbus0 on ohci0
Timecounters tick every 10.000 msec
usbus0: 12Mbps Full Speed USB v1.0
ugen0.1:  at usbus0
uhub0:  on usbus0
mmcsd0: 14GB  at mmc0 25.0MHz/4bit/1-block
Root mount waiting for: usbus0
uhub0: 2 ports with 2 removable, self powered
Root mount waiting for: usbus0
ugen0.2:  at usbus0
run0: <1.0> on usbus0
run0: MAC/BBP RT3070 (rev 0x0200), RF RT3020 (MIMO 1T1R), address 00:05:7b:67:03:a8
Trying to mount root from ufs:/dev/md0 []...
Mounting from ufs:/dev/md0 failed with error 22.
Trying to mount root from ufs:/dev/mmcsd0s1 []...
warning: no time-of-day clock registered, system time will not be set accurately
Setting hostuuid: 9c1d6de3-d3ba-11e1-a71e-3a1f34085454.
Setting hostid: 0xeb1f5905.
Entropy harvesting: interrupts ethernet point_to_point kickstart.
Starting file system checks:
Mounting local file systems:.
Setting hostname: arm9freebsd.hytherion.local.
ate0: link state changed to UP
Starting Network: lo0 ate0.
lo0: flags=8049 metric 0 mtu 16384
        options=600003
        inet 127.0.0.1 netmask 0xff000000 
ate0: flags=8843 metric 0 mtu 1500
        options=80008
        ether 3a:1f:34:08:54:54
        media: Ethernet autoselect (100baseTX )
        status: active
Starting devd.
Starting dhclient.
DHCPDISCOVER on ate0 to 255.255.255.255 port 67 interval 6
DHCPOFFER from 192.168.0.1
DHCPREQUEST on ate0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
bound to 192.168.0.116 -- renewal in 302400 seconds.
Generating host.conf.
Creating and/or trimming log files.
Starting syslogd.
ELF ldconfig path: /lib /usr/lib /usr/lib/compat
Setting date via ntp.
22 Jul 18:05:21 ntpdate[683]: step time server 122.166.117.103 offset 46791.876386 sec
Clearing /tmp (X related).
Updating motd:.
Starting ntpd.
Generating public/private rsa1 key pair.
Your identification has been saved in /etc/ssh/ssh_host_key.
Your public key has been saved in /etc/ssh/ssh_host_key.pub.
The key fingerprint is:
20:28:6f:68:2c:0f:d1:ed:bc:fa:a2:a9:ca:22:de:25 root@arm9freebsd.hytherion.local
The key's randomart image is:
+--[RSA1 1024]----+
|                 |
| . o             |
|o o o .          |
|.= o . .         |
|+oo o   S        |
|o+   .           |
|  .E..           |
|+.o.o            |
|@+.+.            |
+-----------------+
Generating public/private dsa key pair.
Your identification has been saved in /etc/ssh/ssh_host_dsa_key.
Your public key has been saved in /etc/ssh/ssh_host_dsa_key.pub.
The key fingerprint is:
24:4b:e9:d5:38:00:6e:93:f5:c2:ae:b5:60:14:ef:3e root@arm9freebsd.hytherion.local
The key's randomart image is:
+--[ DSA 1024]----+
|    o.o          |
|   . * + o       |
|    * B * .      |
|   o * * .       |
|    o * S        |
|   . = .         |
|    . E          |
|       .         |
|                 |
+-----------------+
Generating public/private rsa key pair.
Your identification has been saved in /etc/ssh/ssh_host_rsa_key.
Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.
The key fingerprint is:
cf:fa:34:96:0e:63:d4:0a:65:31:47:bc:e3:dd:51:b6 root@arm9freebsd.hytherion.local
The key's randomart image is:
+--[ RSA 2048]----+
|        ooo      |
|         +.     o|
|        o  .   o.|
|       o .o   .E |
|      . S..o . . |
|       o +... .  |
|        = B      |
|       . B .     |
|        ..o      |
+-----------------+
Generating public/private ecdsa key pair.
Your identification has been saved in /etc/ssh/ssh_host_ecdsa_key.
Your public key has been saved in /etc/ssh/ssh_host_ecdsa_key.pub.
The key fingerprint is:
5f:41:67:e7:5b:e7:43:a3:88:15:16:ec:1b:89:5f:88 root@arm9freebsd.hytherion.local
The key's randomart image is:
+--[ECDSA  256]---+
|          .+o o .|
|          .o.o o |
|          +.+  o+|
|         Eo=.oo.=|
|        S...=. o.|
|         . +    .|
|          .      |
|                 |
|                 |
+-----------------+
Starting sshd.
Starting cron.
Starting background file system checks in 60 seconds.

Sun Jul 22 18:07:57 UTC 2012

FreeBSD/arm (arm9freebsd.hytherion.local) (ttyu0)

login: _


FreeBSD/arm (arm9freebsd.hytherion.local) (ttyu0)

login: root
Jul 22 21:43:24 arm9freebsd login: ROOT LOGIN (root) ON ttyu0
FreeBSD 9.1-PRERELEASE (AT91SAM9260EK) #0: Sat Jul 21 21:08:16 MDT 2012

Welcome to FreeBSD!

Before seeking technical support, please use the following resources:

o  Security advisories and updated errata information for all releases are
   at http://www.FreeBSD.org/releases/ - always consult the ERRATA section
   for your release first as it's updated frequently.

o  The Handbook and FAQ documents are at http://www.FreeBSD.org/ and,
   along with the mailing lists, can be searched by going to
   http://www.FreeBSD.org/search/.  If the doc package has been installed
   (or fetched via pkg_add -r lang-freebsd-doc, where lang is the
   2-letter language code, e.g. en), they are also available formatted
   in /usr/local/share/doc/freebsd.

If you still have a question or problem, please take the output of
`uname -a', along with any relevant error messages, and email it
as a question to the questions@FreeBSD.org mailing list.  If you are
unfamiliar with FreeBSD's directory layout, please refer to the hier(7)
manual page.  If you are not familiar with manual pages, type `man man'.

Edit /etc/motd to change this login announcement.

root@arm9freebsd:/root # top -b
last pid:  1176;  load averages:  0.07,  0.02,  0.00  up 0+03:43:31    21:46:56
12 processes:  1 running, 11 sleeping

Mem: 8600K Active, 9444K Inact, 8644K Wired, 13M Buf, 25M Free
Swap: 


  PID USERNAME  THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
 1141 root        1  16    0 10108K  2532K pause    0:00  0.05% csh
  758 root        1  40    0 11460K  1960K select   0:05  0.00% ntpd
  779 root        1  40    0 11400K  2160K select   0:02  0.00% sendmail
  786 root        1   8    0  9796K  1252K nanslp   0:00  0.00% cron
  670 root        1  40    0  9736K  1280K select   0:00  0.00% syslogd
  818 root        1   8    0 10648K  1924K wait     0:00  0.00% login
  782 smmsp       1  16    0 11400K  1932K pause    0:00  0.00% sendmail
 1176 root        1  40    0 10176K  1864K RUN      0:00  0.00% top
  521 root        1  50    0  9736K   980K select   0:00  0.00% dhclient
  776 root        1  42    0 13392K  1820K select   0:00  0.00% sshd
  576 _dhcp       1  40    0  9736K   940K select   0:00  0.00% dhclient
  577 root        1  40    0 12356K   388K select   0:00  0.00% devd

root@arm9freebsd:/root # file `which cc`
/usr/bin/cc: ELF 32-bit LSB executable, ARM, version 1 (FreeBSD), statically linked, for FreeBSD 9.0 (900506), stripped

root@arm9freebsd:/root # mount
/dev/mmcsd0s1 on / (ufs, local)
devfs on /dev (devfs, local)

root@arm9freebsd:/root # df -h
Filesystem       Size    Used   Avail Capacity  Mounted on
/dev/mmcsd0s1     14G    243M     12G     2%    /
devfs            1.0k    1.0k      0B   100%    /dev

root@arm9freebsd:/root # uname -a
FreeBSD arm9freebsd.hytherion.local 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Sat Jul 21 21:08:16 MDT 2012
     dbeattie@freebsd02vm.hytherion.local:/opt/9stable/obj/arm.arm/opt/9stable/usr/src/sys/AT91SAM9260EK  arm

root@arm9freebsd:/root # _

Shutting Down the System

Eventually, I had to shut the system down. Don't just unplug it -- remember, this is essentially a UNIX server; shut it down from the command line, so the disk is properly synchronized. 
root@arm9freebsd:/root # shutdown -p now
Shutdown NOW!
shutdown: [pid 1339]
root@arm9freebsd:/root #                                                                                
*** FINAL System shutdown message from root@arm9freebsd.hytherion.local 
***                                                                           

System going down IMMEDIATELY                                                  

                                                                               
Jul 22 23:20:49 arm9freebsd shutdown: power-down by root: 

System shutdown time has arrived
Stopping cron.
Stopping sshd.
Waiting for PIDS: 776.
Stopping ntpd.
Stopping devd.
Writing entropy file:.
Terminated
.
Jul 22 23:21:24 arm9freebsd syslogd: exiting on signal 15
Waiting (max 60 seconds) for system process `vnlru' to stop...done
Waiting (max 60 seconds) for system process `bufdaemon' to stop...done
Waiting (max 60 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining...0 done
Syncing disks, buffers remaining... 7 7 6 6 6 4 4 4 4 4 4 4 4 4 4 2 2 2 2 2 2 2 2 2 2 
Final sync complete
Uptime: 5h18m9s

The operating system has halted.
Please press any key to reboot.

Also, you're welcome to visit my home page.