Converting between Ubuntu

If you want to convert your ubuntu to kubuntu or vice-versa then click here

Install ubuntu 14.04 LTS in HDD+SDD Drive or Replace windows 8 with Ubntu when there is HDD+SSD

I have HDD = 500GB; SSD = 32 GB

Partition
                  HDD - Swap = 10GB
                           - /home = 30GB
                           - /var = 5GB
                           - /var/cache/apt/archieve = 2GB
                           -
                  SSD  -
                           - / =32GB
                           Device for boot loader installation =  SSD Drive

ERROR No 2311 (Conflict when selecting restart type (Interanl error, programming error, or missing error message))

if you get this type of errors in management node, you can start your data node with command "ndbd --initial"

Unable to alloac node id (Problem with mysql Cluster)

TO Solve this problem, use folowing commands-

1. Shutdown nomamly with "ndb_mgm -e shutdown"
2. Boot all ndb_mgmd and mysqld
3. Boot ndbd without --initial

Create user without password in ubutnu

Hi all,

We can create user without password in ubutnu. Here we created visitor as a user (without password). Follow below steps:-

1. sudo useradd visitor
2. passwd -d visitor
3. sed -i 's/#PasswordRequired=false/PasswordRequired=false/' /etc/gdm/gdm.conf
4. sed -i 's/nullok_secure/nullok/' /etc/pam.d/common-auth

After it is done.

Create symbolic link using terminal (create shortcuts)

You can create symbolic link using following command

ln -s SOURCE_DIRECTORY DESTINATION_DIRECTORY

EX:

ln -s /home/praveenb/Farewell_party_2010.tar.gz /var/www/praveenb/Farewell_party_2010.tar.gz

Forget password after install ubuntu

To solve this,

1. Boot with recovery mode.
2. Select "Drop to root shell prompt" option.
command prompt will appear.
3. ls /home [it will give the list of users]
4. passwd username
5. passwd linda
6. exit
7. After you get back to the recovery menu, select resume normal boot, and use Ubuntu as you normally would—only this time, you actually know the password!