Ubuntu13.10: install Oracle Java with ppa

Here is how to install Oracle Java by using ppa repository.

root@note:~# tail -1 /etc/lsb-release ;uname -ri DISTRIB_DESCRIPTION="Ubuntu 13.10" 3.11.0-13-generic x86_64

add the repo and install oracle java.

175  add-apt-repository ppa:webupd8team/java  176  apt-get update  177  apt-get install oracle-java7-installer

root@note:~# which java /usr/bin/java root@note:~# java -version java version "1.7.0_45" Java(TM) SE Runtime Environment (build 1.7.0_45-b18) Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)

done!

Ubuntu 13.04 apt-get error : Too many levels of symbolic links

# tail -1 /etc/lsb-release ;uname -ri DISTRIB_DESCRIPTION="Ubuntu 13.04" 3.8.0-33-generic x86_64

When issuing apt-get upgrade, I saw the following errors.

I am not sure what is the trigger on this issue, because other Ubuntu13.04 boxes can do apt-get upgrade without problems.

# apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up firefox (25.0.1+build1-0ubuntu0.13.04.1) ... update-alternatives: error: cannot stat file '/usr/lib/nx/nxserver': Too many levels of symbolic links dpkg: error processing firefox (--configure): subprocess installed post-installation script returned error exit status 2 Errors were encountered while processing: firefox E: Sub-process /usr/bin/dpkg returned an error code (1)

/usr/lib/nx/nxserver is NoMachine FreeNX which is similar to VNC, Remote Desktop.

# ls -l /usr/lib/nx total 20 lrwxrwxrwx 1 root root    17 Nov  5 09:44 nxserver -> /usr/bin/nxserver -rwxr-xr-x 1 root root 19441 Aug 12 10:45 nxsetup

# file /usr/bin/nxserver /usr/bin/nxserver: broken symbolic link to `/etc/alternatives/nxserver'

# file /etc/alternatives/nxserver /etc/alternatives/nxserver: broken symbolic link to `/usr/lib/nx/nxserver'

/usr/lib/nx/nxserver -> /usr/bin/nxserver -> /etc/alternatives/nxserver -> /usr/lib/nx/nxserver..

round and round ..

how about remove this file?

# rm /etc/alternatives/nxserver rm: remove symbolic link ‘/etc/alternatives/nxserver’? y

I was able to fix this, however I am not sure this way is appropriate or not.

# apt-get upgrade -y Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up firefox (25.0.1+build1-0ubuntu0.13.04.1) ... Please restart all running instances of firefox, or you will experience problems. # echo $? 0

small tips : Ubuntu : apt-get error : open (11: Resource temporarily unavailable)

# apt-get update E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/

Just remove /var/lib/apt/lists/lock file.

# rm /var/lib/apt/lists/lock # rm: remove regular empty file `/var/lib/apt/lists/lock'? y

After removing the lock file , you will perform apt-get w/o the error.

# apt-get update Ign http://jp.archive.ubuntu.com oneiric InRelease Ign http://jp.archive.ubuntu.com oneiric-updates InRelease

In my case , this occurred after the network connectivity had been lost and I had aborted the apt-get command.

Ubuntu: How to upgrade kernel via apt-get

root@alaska:~# cat /etc/lsb-release | grep -i description
DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS"

apt-get upgrade は kernel を upgrade しない。

1. 現在のカーネルのバージョンをチェック

root@alaska:~# uname -r
2.6.32-22-server

2. 最新バージョンをチェック

root@alaska:~# apt-cache search linux-image
linux-image-2.6.32-23-generic - Linux kernel image for version 2.6.32 on x86/x86_64
linux-image-2.6.32-23-preempt - Linux kernel image for version 2.6.32 on x86_64
linux-image-2.6.32-23-server - Linux kernel image for version 2.6.32 on x86_64
linux-image-2.6.32-23-virtual - Linux kernel image for version 2.6.32 on x86/x86_64
linux-image-2.6.32-24-generic - Linux kernel image for version 2.6.32 on x86/x86_64
linux-image-2.6.32-24-preempt - Linux kernel image for version 2.6.32 on x86_64
linux-image-2.6.32-24-server - Linux kernel image for version 2.6.32 on x86_64
linux-image-2.6.32-24-virtual - Linux kernel image for version 2.6.32 on x86/x86_64
...
linux-image-rt - Realtime (RT) Linux kernel image
root@alaska:~#

リアルタイム kernel イメージもあるんだー。

3. 最新バージョン ( 2.6.32-24 ) をインストール

root@alaska:~# apt-get install linux-image-2.6.32-24

4. リブート

root@alaska:~# init 6

再起動後。最新Ver. になった。

root@alaska:~# uname -r
2.6.32-24-server
 

Ubuntu : how to uninstall OpenOfiice

openoffice 必要ないので削除

root@alaska:~# apt-get -y remove openoffice*

注:

openoffice* ( not openoffice )
ワイルドカードをつける

yum groupremove みたいのがあればいいのに。