PDA

View Full Version : [ubuntu] su: Authentication failure


msohn88
April 8th, 2009, 08:10 PM
http://www.linuxjournal.com/video/get-your-webcam-working-gspca

I followed this HOWTO to fix my Webcam for GSPCA, but at 1:55.

He typed "su" command, and it shows with



su: Authentication failure


HELP!
taurus
April 8th, 2009, 08:40 PM
If you've assigned a password for root, then you would run that; otherwise, use sudo.

https://help.ubuntu.com/community/RootSudo
msohn88
April 9th, 2009, 12:55 AM
If you've assigned a password for root, then you would run that; otherwise, use sudo.

https://help.ubuntu.com/community/RootSudo

I get:



FATAL you need to install the Kernel Source for your running kernel


ARUGH
taurus
April 9th, 2009, 02:06 AM
Go into synaptic and Search for linux-image. Then, install the headers for the kernel version that you are running.
benj1
April 9th, 2009, 02:13 AM
Go into synaptic and Search for linux-image. Then, install the headers for the kernel version that you are running.

would that work? you need your password to use synaptic.
taurus
April 9th, 2009, 02:16 AM
would that work? you need your password to use synaptic.

You would use the same password that you log in with, assuming you belong to group admin.


id
benj1
April 9th, 2009, 02:19 AM
You would use the same password that you log in with, assuming you belong to group admin.


id

good point.
hmm will have to read up on passwords and sudo, i thought they were both essentially the same