Commonly Used Sudo Commands for (*)Ubuntu/Unity Crash Recovery

[zika]

Actually it was during the Oneric Ocelot cycle. I'll see if I still have that install and check for logs/history.

I do not have such install but a brief search gives:
https://help.ubuntu.com/community/Ka...s/Kubuntu/8.04
In accordance with my loyal old notebook... One of the first entries...

[ventrical]

I do not have such install but a brief search gives:
https://help.ubuntu.com/community/Ka...s/Kubuntu/8.04
In accordance with my loyal old notebook... One of the first entries...

Just beautiful Now I have the bug to search down the thread where I got that sudo -i from

[ventrical]

@cariboo907

Thanks .. ummm but one thing .. you forgot the -a

sudo -i dpkg --configure -a



.. and if you think it best to drop the '-i' then please do so.

Thanks again.

[Elfy]

I added the a

Not getting involved in a circular argument about -i

I might

sudo -i

then do

dpkg --configure -a

If I had a whole bunch of other stuff to do - but I'd only use

sudo dpkg --configure -a

if that was all I was doing

[ventrical]

Thanks very much Elfy.

[ventrical]

If anyone is having problems with gksu and password authentication then please check out this link for the fix.

http://ubuntuforums.org/showthread.p...9#post12616119

[ventrical]

+1

Make sure that the sources.list text has this added info.

http://ubuntuforums.org/showthread.p...1#post12619169

[ventrical]

Just some notes on the btrfs file system.

Btrfs can be downloaded from the saucy repositories.

sudo apt-get install apt-btrfs-snapshot

*note* You have to have your file system formatted to btrfs when you are doing an install from Ubiquity. apt-btrfs-snapshot can only be run from the #root terminal. If you get no desktop after an upgrade and cannot access a terminal you can get to a terminal by holding down the <shift> key (or any key) which will bring up the GRub menu.

From the GRuB menu you can choose <Recovery Mode> option, then <root>. Once you have dropped to root# you can enter:

mount -o remount,rw /

then , if you type in <exit> it will bring you back to the recovery GUI with the option to choose an @apt-snapshot.

The other way is to enter all the information at the cli and then reboot from there.

root_name#> apt-btrfs-snapshot set-default @apt-snapshot_name_of_snapshot

This is a great recovery tool to learn how to use , especially if you are experimenting with 'mir' server ppa or other cutting edge Ubuntu tools.

[ventrical]

How to tell your current graphics adapter card and driver:

sudo lshw -C display

[ventrical]

Other desktop enviroments downloaded&installed from the repos or Ubuntu Software Center can and will overwrite data to a file:

/etc/lightdm/lighdm.conf and/or /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf

The new lightdm.conf file will look like this after installing KDE Plasma Desktop:

[SeatDefaults]
user-session=kde-plasma
greeter-session=lightdm-kde-greeter

To restore your original greeter you have to edit : /etc/lightdm/lightdm.conf in this way:

[SeatDefaults]
user-session=unity-greeter
type=unity

regards..