Hi evryone, I was using ubuntu 9.10 (ubuntustudio-9.10-alternate-amd64.iso) with linux-rt package. It was working well, I could run the Cyclictest with good RT jitters. Also, I was using comedi and could manage a USBDUX board and a M&C board (PCI-DAS6036). I needed to update my distrib for some reasons, so I did some search and found that Ubuntu does not support anymore the package linux-rt ... so I couldn't keep RT with an update version of ubuntu ... I installed a debian distrib in dual boot using a liveCD (debian livecd 7.0 AMD64, Gnome). Everthing went well and I could drive my board (PCI-DAS6036) with comedi without any problems. Here is the structure of my disk: /dev/sda1 = /boot /dev/sda2 = / (Unbuntu 9.10) /dev/sda6 = / (debian 7.0) /dev/sda7 = /home with a common swap, home and boot for both distributions $ sudo fdisk -l Disque /dev/sda : 80.0 Go, 80026361856 octets 255 têtes, 63 secteurs/piste, 9729 cylindres, total 156301488 secteurs Unités = secteurs de 1 * 512 = 512 octets Taille de secteur (logique / physique) : 512 octets / 512 octets taille d'E/S (minimale / optimale) : 512 octets / 512 octets Identifiant de disque : 0x000aa812 Périphérique Amorce Début Fin Blocs Id Système /dev/sda1 * 63 208844 104391 83 Linux /dev/sda2 208845 61641404 30716280 83 Linux /dev/sda3 61641466 156296384 47327459+ 5 Étendue /dev/sda5 61641468 70027334 4192933+ 82 partition d'échange Linux / Solaris /dev/sda6 70027398 131459894 30716248+ 83 Linux /dev/sda7 131459958 156296384 12418213+ 83 Linux I was quite happy with that and I decided to boot the rt of the debian distribution. It was not working (it was frozen at the login stage ...). So I installed the RT following this website: http://www.pengutronix.com/software/linux-rt/debian_en.html Since I installed it I have now 3 problems (that may be linked): 1- Grub erased my previous grub so I cannot boot on Ubuntu anymore ... (not linked directly to rt-user problems, but comes from the installation of rt distrib) 2- Cyclictest tests do not work anymore 3- My board is not reconnized automatically by comedi anymore 1- On debian: EVERYTHING OK $ ls -lah / lrwxrwxrwx 1 root root 40 juin 25 17:13 initrd.img -> /boot/initrd.img-2.6.33.7.2-rt30-1-amd64 lrwxrwxrwx 1 root root 30 juin 25 10:13 initrd.img.old -> /boot/initrd.img-3.2.0-4-amd64 lrwxrwxrwx 1 root root 36 juin 25 17:13 vmlinuz -> boot/vmlinuz-2.6.33.7.2-rt30-1-amd64 lrwxrwxrwx 1 root root 26 juin 25 10:18 vmlinuz.old -> boot/vmlinuz-3.2.0-4-amd64 On Ubuntu (from debian): PROBLEM WITH THE IMAGE LINK $ sudo mkdir /mnt/Ubuntu $ sudo mount /dev/sda2 /mnt/Ubuntu/ $ sudo mount /dev/sda1 /mnt/Ubuntu/boot $ ls -lah /mnt/Ubuntu/ lrwxrwxrwx 1 root root 27 janv. 10 2012 initrd.img -> boot/initrd.img-2.6.31-9-rt lrwxrwxrwx 1 root root 24 janv. 10 2012 vmlinuz -> boot/vmlinuz-2.6.31-9-rt I understand the problem ... but how to repair it ? 2- It seems that I'm missing linux-headers from kernel 2.6 (see bellow): ~/rt-tests$ make all cc -D VERSION_STRING=0.85 -c src/cyclictest/cyclictest.c -Wall -Wno-nonnull -O2 -DNUMA -D_GNU_SOURCE -Isrc/include In file included from src/cyclictest/cyclictest.c:37:0: src/cyclictest/rt_numa.h:23:68: fatal error: /usr/src/linux-headers-2.6.31-9-rt/include/config/numa.h: Aucun fichier ou dossier de ce type compilation terminated. make: *** [cyclictest.o] Erreur 1 $ ls /usr/src/linux-headers-2.6.31-9-rt ls: impossible d'accéder à /usr/src/linux-headers-2.6.31-9-rt: Aucun fichier ou dossier de ce type $ sudo apt-get install linux-headers-2.6.33.7.2-rt30-1-amd64 Les paquets suivants contiennent des dépendances non satisfaites : linux-headers-2.6.33.7.2-rt30-1-amd64 : Dépend: gcc-4.3 mais il n'est pas installable E: Impossible de corriger les problèmes, des paquets défectueux sont en mode « garder en l'état ». How can I solve this problem ? Can I install headers for kernel 2.6 together with linux-headers-3.2.0-4-amd64 from the standart debian ? 3- /dev/comedi0: No such file or directory (http://www.comedi.org/doc/install.html) $ sudo modprobe options comedi comedi_num_legacy_minors=4 libkmod: ERROR ../libkmod/libkmod.c:505 kmod_lookup_alias_from_builtin_file: could not open builtin file '/lib/modules/2.6.33.7.2-rt30-1-amd64/modules.builtin.bin' FATAL: Module options not found. $ ls /lib/modules/2.6.33.7.2-rt30-1-amd64/ kernel modules.alias.bin modules.dep modules.devname modules.symbols modules.alias modules.builtin.bin modules.dep.bin modules.softdep modules.symbols.bin Please, can you tell me what went wrong with the installation of the rt distrib ?? Thanks and sorry for this long message, Caro PC: Intel/1xQuadCore @ 2.5 GHz, 4 GB RAM, 3 TB space -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
