Hi, On Sat, Mar 23, 2013 at 6:17 AM, Jan Alexander Steffens <jan.steffens@xxxxxxxxx> wrote: > On Fri, Mar 22, 2013 at 11:00 PM, Dany De Bontridder <dany118@xxxxxxxxx> wrote: >> Hi, >> >> >> I reinstalled 2 weeks ago arch linux, because a pacman -Syu broke everything. >> >> Today, everything works fine and I decide to keep my PC up-to-date, >> so I run pacman -Syu and I get a message when trying to boot >> >> *** Kernel Panic - not syncing : No init found. *** >>(...) > Are you sure sda is the right device? When devices are added or > removed from the system (even if it's just a USB dongle!), the > numbering can change. This is why specifying the device directly > (instead of through UUID or LABEL) is dangerous. > > Maybe the filesystem got corrupted. Chroot into your system from the > install media and verify /usr/lib/systemd/systemd is present and > executable. I spent all the night on it, I've tried mkinicpio, check (ldd /sbin/init), if executable, downgrade the kernel... Without success, so I've reinstall everything and now it is working. This failure is a complete mystery for me, it is the second time it happens , finally I decide to ban the command "pacman -Syu" :-( thank you for your help Dany