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Gib dem Kind einen Namen
Ist mir gerade bei der Vergabe von Dateinamen so eingefallen: Ab jetzt läuft das Projekt unter dem Namen Pogoduino.
Automation, Teil 1: Lichtsteuerung
Vorgeplänkel:
Alles neu macht der Mai
Und wieder mal krempel ich mein Tumblelog auf links. Kann ich mir auch leisten, außer mir selbst dürfte sich die Zahl der Leser in Grenzen halten. Falls doch jemand sich hierher verirrt, hier ein Abriss, warum ich mein Blog auffrische.
Can I has some more?
I had to struggle around some time, but finally Debian is up and running!
Let's get Archlinux working!
The installation of Debian consists of two parts:
Install Archlinux ARM on your Pogoplug
Install Debian
At this point, thank you shv from Mydealz (see src). Without your helpful post, I would still struggle around with my "Debian USB stick only" solution.
In our case, "installation" doesn't even match. When we're done, the PPP will boot from a USB drive, which contains the OS. But it is not installed on the device itself.
As this is going to be a bunch of text, I will split it in two posts. I will run Archlinux first.
The cause of this is that the Archlinux installer script modifies the bootloader, so the device will boot from /sda1 later.
First of all, you will need SSH access to your PPP. I use linux terminal, Putty is a good tool for windows to get SSH access. In Linux, type
ssh root@{PPPIP}
I will insert {PPPIP} whenever you need to insert the IP of your Pogoplug or when it will be echoed. Now you're ready to install the OS. I won't explain that here - because it's already typed down there. At least, you will need 2 USB sticks (or I recommend it): One for Archlinux and one for Debian.
After step 10, the installer finishes with following message:
############################# ## Looks good! # Sync ... # Unmount # Reboot to enter into Arch Linux ARM
Doing so by typing
/sbin/reboot
When the front LED turns solid green, try to login via SSH again. Maybe you encounter following message:
ssh root@{PPPIP} @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the RSA key sent by the remote host is 74:ba:8d:19:21:16:0d:1b:1a:03:a0:c2:9b:e2:fa:b6. Please contact your system administrator. Add correct host key in /root/.ssh/known_hosts to get rid of this message. Offending RSA key in /root/.ssh/known_hosts:1 remove with: ssh-keygen -f "/root/.ssh/known_hosts" -R {PPPIP} RSA host key for {PPPIP} has changed and you have requested strict checking. Host key verification failed.
That's a common error. It's not a problem of the remote machine (the PPP), but your local machine. Actually, it's not a problem after all. The host you connect via this IP is not the same as before, so it is good to be warned. To continue, just go ahead and run
ssh-keygen -f "/root/.ssh/known_hosts" -R {PPPIP}
and all will be fine again:
ssh root@{PPPIP} The authenticity of host '{PPPIP} ({PPPIP})' can't be established. ECDSA key fingerprint is 87:c6:5b:1c:50:bc:c1:40:4b:e1:dc:1c:89:f9:af:8f. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '{PPPIP}' (ECDSA) to the list of known hosts. root@{PPPIP}'s password: Last login: Thu Jun 14 18:55:42 2012 from sss7 [root@alarm ~]#
As ALARM stands for ArchLinux ARM, I think we got it! ;) Steps 14 and following are not interesting, as we don't want to use Archlinux anymore.
So this was the first part. Now we gonna work on some Debian stuff.
Working on getting Debian running. I did not get it yesterday, but found some help from other users.
The Pogoplug Pro is kinda stubborn, as ARMv6 is not supported very well on Linux. E02 versions do better. Await my update!
Update:
############################# ## Looks good! # Sync ... # Unmount # Reboot to enter into Arch Linux ARM
How to get a memory stick for PP linux
I just came up with the problem which stick to use to install Debian on it. I grabed the first one which came up. Already being on partitioning it, I thought "Who needs a 4GB stick in this use case? Nobody!"
So I searched my desk for smaller ones. The next one: 64MB. #LOL I found a 1GB version. Stuck it in, tried fdisk on the PP - "fdisk not found" !! For luck, I have a Xubuntu-VM on my Win-PC and so I can format Linux file systems inside there. And yes, I used GParted - I prefer GUI against console view. :)
The noteworthy thing about that stick: It cannot handle more than one partition! And this one partition cannot be an extended one. So I had to search again.
I finally found a 1GB stick and formatted it with a relation about 3:1 with ext2 and swap. I read a hint, the bootloader won't work if the ext2 boot partition isn't named rootfs. I named it so, I don't really care about its name anymore.
Don't forget to set rootfs active!
Now installation can begin.
R U talking SSH?
# cat /proc/cpuinfo Processor : ARMv6-compatible processor rev 5 (v6l) processor : 0 BogoMIPS : 279.34 processor : 1 BogoMIPS : 279.34 Features : swp half thumb fastmult edsp java CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xb02 CPU revision : 5 Hardware : Oxsemi NAS Revision : 0000 Serial : 0000000000000000
# cat /proc/meminfo MemTotal: 125764 kB MemFree: 84152 kB Buffers: 0 kB Cached: 5760 kB SwapCached: 0 kB Active: 3812 kB Inactive: 3864 kB Active(anon): 1932 kB Inactive(anon): 0 kB Active(file): 1880 kB Inactive(file): 3864 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 1944 kB Mapped: 2896 kB Slab: 3776 kB SReclaimable: 556 kB SUnreclaim: 3220 kB PageTables: 136 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 88032 kB Committed_AS: 5444 kB VmallocTotal: 598016 kB VmallocUsed: 1288 kB VmallocChunk: 594420 kB
# cat /proc/version Linux version 2.6.31.6_SMP_820 (bdietrich@brad-ux) (gcc version 4.4.1 (Sourcery G++ Lite 2009q3-67) ) #96 SMP Tue Feb 8 10:06:27 PST 2011
Ersteinrichtung
Der PP läuft jetzt für die ersten Tests.
Zu allererst sollte das vorhandene Netzwerk für den Betrieb angepasst werden. Ich schwöre hierbei auf MAC-Filter durch den Router, vor allem wenn man sich via WLAN verbindet. Aus Gründen der Bequemlichkeit, setze ich im DHCP-Server eine feste IP für jedes Gerät. Die Erfahrung hat gezeigt, dass es schon mal praktisch sein kann, wenn sich die IP eines Gerätes nie ändert.
Da schau mal her, was der Postbote für mich hatte. Tatsächlich eine Pro-Version.
Specs (Quelle):
PLX/Oxford Semiconductor NAS7820 SoC, Dual Core ARMv6, 700 MHz
128 MB RAM
128 MB Flash
Laut Etikett scheint das wirklich der (normalerweise teurere) Pro zu sein. Jetzt suche ich ein deutsches Netzkabel und dann wird die Kiste mal hochgefahren.
In wenigen Tagen kommt der Pogoplug
http://www.broadbandbuyer.co.uk/Shop/ShopDetail.asp?ProductID=10722
Laut Rechnung ist es ein P03. Offenbar die Wifi-Version. Da will ich mich mal nicht beschweren. 15€ inkl. Versand.
Improves performance dramatically
Bei einem ICO-Meeting treffen sich unsere SAP-Pexen zum Forum.
anonym
Könnt doch etwas schärfer sein ... aber trotzdem ganz nett. ;-)
blogschatten:
Brunch
Und das ist der beste Satz, um eine Vorlesung zu beenden: Ich kann Ihre Frage nicht beantworten.
Prof. Michael Hassemer