Hello Jörg, All the lines you suggested me work for my problem. I put the third in my configuration. -- Gilles Émilien MOREL <contact@gilles-morel.fr> « Beaucoup de choses passent par le pipi de nos jours. » -- Thomas Cyrix ----- Message original ---------------- Jörg Schulz <jschulz@sgbs.de> à Gilles MOREL <contact@gilles-morel.fr> copie à 872410@bugs.debian.org le mercredi 02 mai 2018 à 18:25:35 +0200 avec Thunderbird 52.5.2 pour Linux x86_64 Re: Bug#872410: AHCI module not loaded when using preseed -------------------------------------------------- Hello Gilles, with this HACK you don't have to modify your kernel, initrd or udeb-repository. Simply add this line to your preseed file: d-i preseed/early_command string sed -i '/depmod -a > .dev.null 2>&1 || true/a modprobe ahci || true' /bin/hw-detect It tries to modify /bin/hw-detect to unconditionally try to load the ahci module after the "depmod -a"-command at the beginning of the script. hw-detect is called (at least) 2 times before partitioning. First for network-detect (at this time the sata-modules-udeb is obviously not available and modprobe will fail) and a second time form disk-detect. Now the sata-modules-udeb should have been installed already and the ahci-module is ready to install - after "depmop -a" of course. This is no solution for the root cause of the problem. To further investigate this it would be nice if you could confirm my guess of a timing problem. For this you could add this line to your preseed file (instead of the above of course): d-i preseed/early_command string sed -i '/^update-dev >.dev.null$/i sleep 10' /bin/hw-detect or this: d-i preseed/early_command string sed -i '/^update-dev >.dev.null$/i udevadm control --reload' /bin/hw-detect Hope this helps. Jörg
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