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Unload kernel module at boot time (Debian Wheezy 7.2, 3.2.0-4-686-pae kernel)


 
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Unload kernel module at boot time (Debian Wheezy 7.2, 3.2.0-4-686-pae kernel)

Hi everyone,
I am trying to prevent the ehci_hcd kernel module to load at boot time.
Here's what I've tried so far:
1) Add the following line to /etc/modprobe.d/blacklist.conf (as suggested here):
Quote:
blacklist ehci_hcd
2) Blacklisted the module by adding the following string to
Quote:
GRUB_CMDLINE_LINUX_DEFAULT="quiet modprobe.blacklist=ehci_hcd"
3) Tried to blacklist the module by adding the following line to /etc/modprobe.d/blacklist (without the .conf):
Quote:
blacklist ehci_hcd
After trying each step I updated the boot image with
Quote:
dpkg-reconfigure linux-image-$(uname -r)
and rebooted, each time to no use.
I've also removed the module with
Quote:
modprobe -r ehci_hcd
but as you know, that will only unload the module until next reboot.
The reason why I want to do this is because I am suspecting that module is responsible for crashing a RAID1 device composed of 2 8 GB USB drives connected to a PCI 4-port USB 2.0 hub in an old home server that only has USB 1.1 onboard ports available (I added the PCI hub in hopes that I could use the flash drives at USB 2.0 speeds). Maybe the hardware itself isn't capable of handling USB 2.0? Please correct me if my reasoning is faulty.
Any hints or suggestions will be more than welcome.

---------- Post updated 01-01-14 at 03:21 PM ---------- Previous update was 12-31-13 at 10:42 PM ----------

Just in case someone finds it helpful, here's how I solved the issue: [SOLVED] Unload kernel module at boot time (Debian Wheezy 7.2, 3.2.0-4-686-pae kernel)

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