Troubleshooting

  • Making a logo using GIMP

    If you are looking for Xtns menu of toolbox, don't, as, starting with Gimp version 2.6 the Gimp developers have removed the toolbox menu bar and merged it with the image window menubar. To make a logo, go to the image window menu bar. Select File -> Create -> Logos. Under Logos, you may ...

  • kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

    A new Linux kernel was built using the commands, make gconfig, make, sudo make install and sudo make modules_install. After building a new Linux kernel and booting from it, the boot process halts with the following message:

    kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
    



    A ...

  • Gtk-WARNING **: cannot open display:

    While running a GTK+ based C program under Cygwin, the following runtime error is observed,

    Gtk-WARNING **: cannot open display:
    
    

    SOLUTION

    1. Make sure that Cygwin/XServer is installed and is running. If it is not installed, download the relevant packages from Cygwin.

    2. Make sure that environment variable DISPLAY is defined ...
  • cygwin1.dll not found

    A C program was compiled under Cygwin and run directly under Windows. The following runtime error was observed,

    cygwin1.dll not found
    
    

    SOLUTION

    Make sure that the environment variable, PATH, has the directory C:\gygwin\bin which contains the dll, cygwin1.dll.

    On Windows Vista, this can be ...

  • Mounting Windows partitions under Linux

    Multi-boot systems with Linux and Windows are quite common. With the following steps, it is easy to access Windows partitions under Linux.

    1. Examine the disk partitions. For example,

    sudo fdisk -l
    

    gives the output,

    Disk /dev/sda: 160.0 GB, 160041885696 bytes  
    255 heads, 63 sectors/track, 19457 cylinders  
    Units = cylinders of ...
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