I'm aware of the How do I upgrade to the development release (aka. Ubuntu+1)? question and this is NOT a duplicate.
On my laptop running Ubuntu 12.10, when running sudo update-manager -d, I'm getting "The software on this computer is up to date".
Running sudo do-release-upgrade -d starts the upgrade procedure
Is it a (temporary) bug in Update Manager which is going to be fixed or is it a change which makes our "canonical" answer obsolete? Or am I doing something wrong?
I've got a few machines which I'm upgrading from version to version for a few years.
I'm curious to find out what was the original version of Ubuntu installed on the machine.
Is there a way to do that?
I'm running Lubuntu 12.04 on an original EeePC. In Arch Linux there's a repository which provides a highly customized very light-weight kernel specifically tailored for that particular machine's hardware.
Is there anything which would prevent me from using that kernel with Lubuntu? I understand that I'll have to download it manually and configure GRUB myself.
During an upgrade to 12.04 today I've got an error when running post-install hook for resolvconf package:
Setting up resolvconf (1.63ubuntu11) ...
resolvconf.postinst: Error: Cannot replace the current /etc/resolv.conf with a symbolic link because it is immutable. To correct this problem, gain root privileges in a terminal and run 'chattr -i /etc/resolv.conf' and then 'dpkg --configure resolvconf'. Aborting.
Well, surely I tried running chattr -i /etc/resolv.conf, but dpkg --configure resolvconf produced the same error.
I tried to move or delete the file manually, but I can't do this even as root:
sudo mv /etc/resolv.conf /etc/resolv.conf.old
mv: cannot move `/etc/resolv.conf' to `/etc/resolv.conf.old': Operation not permitted
sudo rm /etc/resolv.conf
rm: cannot remove `/etc/resolv.conf': Operation not permitted
I am able to create and then delete a file in /etc (as root), so the root partition is not mounted read-only or anything. Also:
lsattr /etc/resolv.conf
-----a--------- /etc/resolv.conf
I've got a VPS running Ubuntu. Being a virtual server, I understand that it shares resources with unknown number of other servers, and I'm noticing that it's considerably slower than my desktop machine.
Is there some tool to measure the performance of the virtual machine? I'd be curious to see some approximate measure similar to bogomips, possibly for CPU (operations/sec), memory and disk read/write speed. I'd like to be able to compare those numbers to my desktop machine.
I'm not interested in the specs of the actual physical machine my VPS is running on - by doing cat /proc/cpuinfo I can see that it's a nice quad-core Xeon machine, but it doesn't matter to me. I'm basically interested in how fast a program would run in my VPS - how many CPU operations it can make in a second, how many bytes to write to RAM or to disk.
I only have ssh access to the machine so the tool need to be command-line.
I could write a script which, say, does some calculations in a loop for a second and counts how many loops it was able to do, or something similar to measure disk and RAM performance. But I'm sure something like this already exists.
I know that Ubuntu can be upgraded to a development release by starting update-manager -d
However, in Kubuntu update-manager is not installed so I suppose some KDe-specific program need to be used.
I would like to copy all recordings of a certain show to a folder so I can transfer them to another computer and watch them "offline". MythTV stores all recordings in a single folder in files titled "2609_20111111093000.nuv" which makes finding all the episodes I want a daunting task.
I tried using MythArchive but it seemingly oriented at burning files to DVDs. In addition, my MythTV crashes when I try to use MythArchive.
I'm not particularly concerned with converting/recompressing files, just copying them would be enough.
I have been using f-spot for a few years to manage my photo archive, which is about 50K images at the moment. With the development of f-spot slowing down in the recent years and me switching to KDE, I'm looking at using DigiKam, which seems to be very nice and packed with features beyond my wildest hopes :)
One thing I'm missing though is the way f-spot was importing the images: it was creating subdirectories based on the image's shooting date:
$HOME/Photos/2011/11/12/IMG_1234.jpg
$HOME/Photos/2011/11/13/IMG_1235.jpg
$HOME/Photos/2011/11/13/IMG_1236.jpg
I don't seem to be able to find a way to make DigiKam to behave like this - although it has some settings to change the image filename according to some mask which may include shooting date, I see no way to tell it to create sub-directories. (Update - as user26687 pointed out, there is a way to create subdirectories like Photos/2011-11-13, but still I can find no way to create separate subdirectories for year, month and day)
Is there a way to make DigiKam to behave like this? Or, alternatively, what is a good program to import images from a camera and save them on disk in subdirectories according to their shooting date?
Is it possible in KDE to set up keyboard shortcuts similar to what Unity uses for window placement - i.e. Alt - Ctrl - Numpad 6 to make a window occupy the left half of the screen etc.?
The first thing I noticed after upgrading from 11.04 to 11.10 is that my wallpaper changed to the one I used to have ages ago - probably before I upgraded from 10.10 to 11.04. Which is not a big deal, of course, but:
My daughter used to experiment with Gnome themes in her account on the same machine - you know, bright-blue window backgrounds with yellow text etc. Later she changed the settings to something more usable. After the upgrade to Oneiric, the Gnome theme reverted to blue backgrounds with yellow text and I can find no way to reset it.
I installed the "Advanced settings" tool and can change the theme there, but it looks like most of the themes fall back to some default settings for window and text colors - i.e. window decorations and other elements change, but the blue and yellow "shine through" the theme. Previously it was possible to edit the defaults but with the "streamlined" Gnome 3 UI I can't find where it is done.
The only theme which override the blue background is High Contrast theme - but it's just too ugly to be used.
Can somebody explain what caused this "time machine" effect - the settings in question were last used many months ago and then changed via standard Gnome means.
How do I remove the theme customisations and roll back to the stock standard theme?
I'm giving KDE another try - so far so good. I installed everything using apt-get install kubuntu-desktop. During the installation it asked me which login manager to use and I chose LightDM - however, now I'm finding user sessions (KDE) are behaving a little funny - when left for some time, they lock out asking for password, but there's no way to switch user (i.e. there's a small window asking for password with Ok and Cancel buttons - no Switch User, Shutdown, Suspend or anything).
Pressing Ctrl-Alt-F[something] shows a text log, where I can see a message "Not starting KDM because it's not the default manager" - so I think my problem can be fixed by making it default.
How can I do this?
(actually, trying to switch user via K-menu - Leave - Switch user results in the same dialog: "The session was locked by sergey, please enter your password")