mikas blog

Update: see LART of the day – the solution for the solution. % cat foo.c int main() { return 0; } % gcc foo.c foo.c:1: fatal error: can’t open /tmp/ccxgyEhb.s for writing: Permission denied compilation terminated. Uh?! Ok, does the file exist? Do I have write permissions? gcc ok? % pwd /tmp % ls -lad […]

Auf der FrOSCon (Free and Open Source Software Conference) habe ich am letzten Wochenende einen Vortrag mit dem Titel "Gute Open-Source-Projekte bestehen aus mehr als nur Code" gehalten. Das Videoteam war heuer schnell (danke!) und daher gibt es für Interessierte zu meinen Vortragsfolien (PDF, 10MB) auch bereits das Video zum Vortrag: h264-Format, 118MB theora-Format, 290MB

Finally I’m back from DebConf10 in New York. It was the first DebConf I attended and it was just great. Thanks a lot to all involved people for making DebConf such a great event. I had a big todo list for DebCamp and DebConf and managed to get a bunch of work done. Besides several […]

Last weekend (2010-07-02 – 2010-07-04) nine people met at the FAI developer workshop at Linuxhotel in Essen/Germany. If you can’t remember: FAI is a non-interactive system to install, customize and manage Linux systems and software configurations on computers as well as virtual machines and chroot environments, from small networks to large-scale infrastructures and clusters. The […]

From 2nd to 4th of July 2010 the FAI developer workshop will take place at the Linuxhotel in Essen/Germany. FAI? FAI is the abbreviation for Fully Automatic Installation. It’s a non-interactive system to install, customize and manage Linux systems and software configurations on computers as well as virtual machines and chroot environments, from small networks […]

Auf den Grazer Linuxtagen und den Linuxwochen Wien habe ich jeweils einen Vortrag über “Grml Live-Linux für Deployment und Desaster-Recovery” gehalten, die Folien zum Vortrag gibts online (PDF – 1,6MB).

I love EtherPad for online collaboration in real-time. By today (14th of April 2010) new pad creation will be disabled at EtherPad.com. Being aware of that in advance and as the EtherPad software was open sourced recently friends of mine and I were working on providing a dedicated EtherPad setup. TitanPad was born! Quoting our […]

I’m working for a customer who’s using IBM blades. Remote access isn’t limited to e.g. SoL but also possible through a Remote Console feature using a Java applet. After migrating one of my 32bit systems to a fresh 64bit system I suddenly couldn’t use this Remote Console feature any longer. The error message was (leaving […]

void die_if_kernel(char *str, struct pt_regs *regs) { static int die_counter; int count = 0; /* Amuse the user. */ printk( ” \\|/ ____ \\|/\n” ” \”@’/ .. \\`@\”\n” ” /_| \\__/ |_\\\n” ” \\__U_/\n”);   — arch/sparc/kernel/traps_64.c

Just booked my ticket for DebConf10. See you in New York.

Die Grazer Linuxtage (GLT) finden heuer am Samstag, dem 24. April 2010 auf der FH Joanneum statt. Wir – das Organisationsteam der GLT – suchen auch heuer wieder gute Vorträge. Vor Kurzem ist Call for Lectures online gegangen. Du willst deine Software unter die Leute bringen? Es gibt ein gutes Projekt das unbedingt vorgestellt gehört? […]

If you ever notice a device like that on your Linux system: # fdisk -l Disk /dev/sda: 8 MB, 8388608 bytes 8 heads, 32 sectors/track, 64 cylinders Units = cylinders of 256 * 512 = 131072 bytes Disk /dev/sda doesn’t contain a valid partition table … then the scsi_debug kernel driver is present. To get […]

Distrowatch, Heise, Pro-Linux, Symlink, Golem & CO already have the news: a new version of the Debian based Live system for system administrators has been released: Grml 2009.10 – Codename ‘Hello-Wien‘. One visible new feature is the new bootsplash which should lead you through the most important boot options. The new release features kernel 2.6.31.5 […]

Live-initramfs is a fork of Ubuntu’s casper for use within Debian. Nowadays several Debian based live systems are using live-initramfs to build an initramfs suited to boot live systems. Besides debian-live and all its users that’s at least Grml (and its derivates) and FAI. I’m maintaining live-initramfs for Grml – so I know the limitations […]

Wer: Adi Shamir (Faculty of Mathematics & Computer Science, The Weizmann Institute of Science) Wann: Mittwoch, 16. Sep., 11:00 s.t. Wo: TU Graz, Hörsaal I7, Inffeldgasse 25 D, 1. Stock. Title: Plumbing 101: How to Deal With a Small Cryptographic Leakage Abstract: In this talk I will formalize the notion of leakage attacks on iterated […]

Update1 am 9. Juli: DebConf9, YAPC::EU::2009, UKUUG, OpenSourceWorld, Froscon, LinuxCon, Ohio LinuxFest, Kieler Linux Tage, Utah Open Source Conference und FSOSS09 hinzgefügt Update2 am 13. Juli: Linux-Kongress, OpenSolaris Developer Conference, OpenRheinRuhr, Brandenburger Linux-Infotag und Ubucon nach Hinweisen von Jens Link und Dirk Deimeke hinzugefügt Update3 am 26. Juli: Datum und Ort vom Linux-Kongress angepasst (Upstream-Change) […]

Es ist wieder soweit: es gibt eine neue Release von grml, der Debian-basierten Linux Live-CD für Systemadministratoren und Texttool-User. Codename Lackdose-Allergie. Die letzte stabile Release von grml war Ende 2008. Warum hat es zur neuen Release so lange gedauert? Der größte Anteil geht an das Release von Debian/Lenny im Februar. Der an die Release anschließende […]

Now being an official Debian developer I’ve the possibility to use $DEBEMAIL=mika@debian.org for my Debian packages. But whereas I want to use that for all my official Debian packages I still want to use $DEBEMAIL=mika@grml.org for my grml related packages. I’m a lazy sysadmin and don’t want to manually adjust my changelogs depending on the […]

Since 2009-05-28 I’m an official Debian Developer. Thanks to all involved people. Special thanks to Gerfried ‘Rhonda’ Fuchs for being my advocate and a helpful package sponsor, to Alexander ‘formorer’ Wirt for being a helpful package sponsor, to Christoph ‘Myon’ Berg and Bernd ‘bzed’ Zeimetz from the frontdesk and to Marc ‘he’ Brockschmidt for being […]

With grub2 you can directly boot an (iso9660) ISO using its loopback option. This is great because it provides another nice rescue scenario – for example when using grml (the Debian based Linux Live-CD for sysadmins). You no longer need to extract kernel and initrd from the ISO to be able to boot it using […]