[Bug 507824] Re: Linux kernel 2.6.31-18 in Kubuntu 9.10 Karmic Koala doesn't support usbfs.

[Maxim]

edonia, you may edit grub configuration file to boot on older version of linux kernel. The last version of linux kernel with usbfs support is 2.6.31-17.
Press Alt+F2 and type "kdesudo kate /etc/default/grub" if you use KDE or "sudo gedit /etc/default/grub" if you use GNOME. In text editor you wil see the following lines:

GRUB_DEFAULT=0
GRUB_TIMEOUT=10
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
...

You must uncomment two first lines (if they are commented) and comment
two second, check please:

GRUB_DEFAULT=0
GRUB_TIMEOUT=10
#GRUB_HIDDEN_TIMEOUT=0
#GRUB_HIDDEN_TIMEOUT_QUIET=true
...

Save changes and run the following command in terminal: update-grub.
Then reboot you system. You will see boot menu with several entries. Just choose kernel version 2.6.31-17 or older. If you want your system boots older version of kernel each time, you turn on your computer, then open /etc/default/grub file once again and set right entry number (starts with zero).
For example, you want your system automatically boot linux kernel version 2.6.31-14, which appear on sixth entry in boot menu. Then in /etc/default/grub file you must type this:

GRUB_DEFAULT=5
...

0 - first entry, 1 - second entry, ... , 5 - sixth entry and so on. Don't forget run update-grub command after saving changes!
Good luck!

-- 
Linux kernel 2.6.31-18 in Kubuntu 9.10 Karmic Koala doesn't support usbfs.
https://bugs.launchpad.net/bugs/507824
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