Compiling Xen Linux-kernel – Ubuntu Intrepid

I need to compile a 2.6.27 xen-kernel to upgrade because I have problems getting nfsv4 to work on my current setup. I am following this guide.

I’m writing this because I had problems when compiling. I got an error on the common_64.o. I didn’t find anything when searching this error. So I was grateful when I found this post, that led me past the error. In this post the option CONFIG_IA32_EMULATION=y is mentioned. And when I activate that option in menuconfig, I can continue compiling.

update 090712: I managed to compile the kernel. I also found a post explaining that my problem booting a standard Ubuntu-kernel in a domU shouldn’t exist. This led me to do another search for reasons why my domU wouldn’t boot. And as I found out, ofcourse, my only problem is that I don’t get any console (as in xvc0.., xm console). I haven’t sorted that out yet. I will update when I do. The updated kernel, a 2.6.27-14-server from ubuntu repos., made my nfs-problems disappear. =) \o/ I will now proceed with getting nfs4 and with auth against Zeroshell krb5 working.

Get more free disk space!

It seems that the days when you needed to keep you computer clean and tidy are gone. With the operatingsystems only require a few percent of your harddrive this might be less of a problem. But my experience is that it still fills up and you may lose focus from the “system-near” files and
only try to clean up your other data (like larger mediafiles or old backups).

I most recently used this tool when my Windows-partition on my work-laptop.

jDiskReport
– Cross platform using java (Mac/Windows/Linux)

There are many similar tools for both Windows and Linux. jDiskReport is the best free one I’ve found.
In Ubuntu you can install a gnome tool but I don’t remember the name of the package right now. I will update this when I do. For KDE there is Filelight. But I haven’t tried it yet.

This Google-page has a summary of a bunch.

Using digikam in hardy to convert Canon G10 CR2 RAW photos to jpeg.

I found myself in a bit of a dilemma again because I’m still running Ubuntu Hardy Heron (8.04) on my server. In the long run I will probably migrate my Xen-machines to running on KVM in line with Ubuntu 8.10 and 9.04. But for now that’s another project.

I have a Digikam installation on a Ubuntu Hardy that runs quite well. My problem recently arose when I tried to convert RAW images with the built in rawconverter (residing in the kipi-plugins package). I also tried using plainly dcraw wich is the utility that the rawconverter plugin is based on. Both of them returns an image that has a yellow tint. Diggin further I have come to the conclusion that new support for my camera is added in dcraw 8.89 and therefor I’m trying to build my own updated support for this into Digikam so that I can convert theese images until I decide to upgrade to the latest stable Ubuntu, Jaunty (9.04) or later.

I have succeded in compiling kipi-plugins and required packages that didn’t already exist or needed update. The problem now is that it seems like i need to upgrade Digikam too because it crashes using the new kipi-plugins.

My conclusion now is that I am probably better off trying to get that machine upgraded to Ubuntu 9.04 Jaunty.

DVB-C

Mystique CaBiX C2 DVB-C

Köpte ett DVB-C kort för att kunna spela in TV till servern (Tele2). Inklusive en CAM-läsare. Beställt från dvbshop.net (de). Totalt ~1200kr inkl frakt och avgifter.

http://www.dvbshop.net/product_info.php/info/p2258_Mystique-CaBiX-C2–DVB-C–HDTV–CI-Connector–Windows-Linux.html
http://www.dvbshop.net/product_info.php/info/p2260_Mystique-View-CI-Interface–f–1-CAM–for-PCI-and-or-3-5-.html

Projektet blir till att börja med baserat på mythtv (backend+webgui). Senare kanske jag investerar i en frontend.

Update 090219: Hämtade kortet på posten idag. Nu ska det igång!
Update 090411: Kortet lirar bra i Linux. För att CI ska lira med CAM krävdes senaste dvbcore från linuxtv CVS. FutureCard Cardsplitter lirar inte (med Conax CAM och Tele2 Abb.) Skall testa SmartWi. Annars får det bli tvillingkort.
Update 0905xx: SmartWi fungerar med detta kort. Dock fungerade den splittern inte med min digitalbox (smartbox, tele2)… Så jag lämnade tillbaka den. CSPro64 är det enda hoppet… Men tills vidare kommer jag nog köra tv-servern även som front (när jag flyttat från xen till kvm), med lång hdmi-kabel.

Logitech Harmony 525

Köpte en Logitech Harmony 525, för jag är så trött på alla fjärrar… Visserligen använder vi “bara” tre st. Men det finurliga med dessa modeller är ju att den hanterar sk. aktiviteter. Dvs när jag vil kolla på TV så slår den på TV:n samt digitalboxen och byter rätt ingångs-kanal på TV:n. Och samma sak när man stänger av. Allts stängs av med ett knapptryck.

Kommer använda den med: Samsung 40M86BD, Popcorn Hour A100, Smartbox digitalbox, Xbox 360 och kanske nån gång Xbox.

Nu har jag ju inte installerat allt, så det återstår att se hur bra den kommer att fungera.

495:- på Webhallen.

Digikam centralized in Xen guest

I’m using Digikam on my laptop to manage my photos. I recently bought a new camera using. And now I’m trying to setup an centralized environment on my server (running xen). Although the thought of editing high-resolution photos through VNC doesn’t seem like a great idea, it seems possible to at least use the tagging and managing features in Digikam. Using X11 forwarding is even slower, especially when displaying the images. The tests I’ve done so far has been over wifi (11G) , so if I would use wired LAN it might work good enough. The original idea on how to transfer the images to the server was simply to connect the camera directly via USB (ptp), passed through to the virtual guest server. But that just doesn’t seem to work. The passthru possibilities in Xen isn’t good enough. I’ve managed to get mass-storage devices to function, using pci-passthru, but my camera can only handle USB-ptp mode. So for now, as a workaround, I’ve setup a samba share on the network for importing pictures (basicly a predefined folder on the virtual server). And I’m thinking about buying a card-reader to the server. If anyone got any tips on this, please let me know.

Vibestreamer “detached” on Linux server


I’ve setup my new Vibestreamer server in the following environment:

– Ubuntu 8.04 (hardy) running Xen as host with:
– Ubuntu 8.04 (hardy) as guest with:
– VNC4Server (Xvnc) with:
– XFCE4 (single session) with:
– Wine (default) running:
– Vibestreamer 3.0a4

This allows me to connect and administrate my running Vibestreamer-server from any PC using SSH-tunnel and any VNCClient, or webbrowser connecting to a port forwarded to the VNC4Server included Java-VNC-client.

I’m also looking at using Xrdp as an external portal to my network.

– “Damn Vibestreamer 3 looks good in Opera 9.5!”

Riktigt snyggt! 

Vibestreamer 3.0a4 i Opera 9.5.
Vibe Streamer features the following and much more: 
– Free MP3 Streaming Server.
– Easy installation and configuration.
– Share unlimited files and directories.
– Full support for Windows NT/2000/XP/2003. + Linux within Wine (winehq.org)

Visit http://www.vibestreamer.com !

Jakten på trådlöst tangentbord har börjat!

Jag letar efter ett vettigt tangentbord att styra pc:n jag kopplar till TV:n.

Skall krav är:
* Trådlöst. Bluetooth / Radio
* Inbyggd mus. Platta, spak, pinne eller kula.
Bör krav:
* Snyggt, litet, lätt, smidigt, bluetooth
* Billigt, laddningsbart (högprestandabatterier), laddare.

Följande är de mest intressanta jag hittat:

Logitech Dinovo Edge:
+ Grymt snyggt – Passar stilmässigt med vardagsrummet.
+ Bästa tangentbordet som finns? Sägs det…
+ En musplatta – eller som det sägs den bästa nånsin…?
+ Snyggt ställ
– Snordyrt
– För stort?


Microsoft Wireless Entertainment Desktop 7000

+ Helt ok utseende
+ Liten musplatta
– Microsoft
– dyrt

Apple Wireless Keyboard – (Det nya):
+ Priset är precis på gränsen inte för dyrt…
+ Riktigt snyggt
– Vill ha mus
– Vill ha en bra tangentbordsuppsättning
– 3-5v minst väntetid.

Ione Scorpius P20:
+ Billigt
– Egen radiotyp för trådlös överföring.
– Fult

Fortsättning följer…