On Wednesday 29 February 2012 06.07.03 John Doe wrote: > From: Volker Poplawski <volker@xxxxxxxxxxxx> > > > The required xhci_hcd kernel module is not part of the 260 modules in > > the initrd for some reason. Sony Memory-Stick is included, if you happen > > to have one of these... > > I was able to rebuild the initrd plus the xhci_hdc module: > > mkinitrd -v --with=xhci_hdc > > /boot/initramfs-2.6.32-220.4.2.el6.x86_64.img `uname -r` > > Now, how do I tell centos to add the module everytime a new kernel is > > installed/updated? > > Isn't mkinitrd looking at /etc/modprobe.conf? > Or is it only limited to fs, ide/scsi and raid modules? Let me try to unconfuse this situation: 1) CentOS-6 does not use initramfstools, mkinitrd is just a thin shell wrapper on top of dracut 2) dracut by default adds lots of drivers to the initramfs (not only what's needed, that is, -H is not the default) 3) dracut does not include *hci_hcd modules since ehci, uhci and ohci are built in, not compiled as modules (this could be considered a bug...). 4) you spelled the driver wrong above, it's xhci_hcd not hdc To conclude, to build a new initramfs for the current kernel with dracut: dracut --add-drivers xhci_hcd /boot/initramfs-$(uname -r).img $(uname -r) To make it permanent look at the add_drivers line in /etc/dracut.conf or add a /etc/dracut.conf.d/... /Peter
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