Monday, August 17, 2020

Error: JavaFX runtime components are missing, and are required to run this application (Debian 10 )

Running jar file ( Income Tax India Return filing utilty) on debain 10 gives... Error: JavaFX runtime components are missing, and are required to run this application

First install Java if not installed by default

sudo apt install default-jre

Test it with java -version

if you want to install JDK

sudo apt install default-jdk

Test it with javac -version

Install Javafx 

sudo apt install openjfx  

Add module-path with argument like

java --module-path /usr/share/openjfx/lib/ --add-modules=javafx.base --add-modules=javafx.fxml --add-modules=javafx.controls --add-modules=javafx.web  --add-modules=javafx.controls --add-modules=javafx.swing -jar ITR-3_AY201920_PR2.jar 

Tuesday, July 28, 2020

Debain buster not showing Windows Network Shared Folder. Connect to server smb:// not working

In spite of all setting of Samba on Debian buster not accessing Windows Network from Explorer or not working smb:// (window ip address or computer name)

After the successful installation of smbclient opens the up the /etc/samba/smb.conf file and right after the workgroup = WORKGROUP add the below line to change the default.

client max protocol = NT1

if not working try...

client min protocol = NT1

you just need to save the file and reboot the system.

Note: Reboot is necessary otherwise the above solution will not work.

Sunday, July 26, 2020

Repair or Reinstall Grub boot loader on dual boot Windows & Linux

Update Windows system on dual boot machine with Debain 10. Boot menu disappear after updating or replacing Windows 7

To make Grub Boot Loader working again:


Boot from Linux Live CD Ubuntu/Mint or any other
  1. mount your Linux installed partition to some mount point. here XY is the number of your Linux distro partition.

    sudo mount <root-partition[e.g. /dev/sdaXY]> <mount-point[e.g. /mnt/]>
  2. Now bind some essential live root partition directories to mounted root partition at /mnt.

    sudo mount --bind /dev /mnt/dev && sudo mount --bind /dev/pts /mnt/dev/pts && sudo mount --bind /proc /mnt/proc && sudo mount --bind /sys /mnt/sys
  3. Now, change the root to newly mounted partition directory.

    sudo chroot <mount-point[e.g. /mnt/]>
  4. Now, install the GRUB using grub-install command at your HDD MBR.

    grub-install /dev/sda
  5. Finally update the grub entries to show newly detected partition operating systems.

  6. And at last unmount all the binded partition directories, and then reboot.

    sudo reboot

Sunday, July 12, 2020

Boot Debian 10 with splash screen

edit file /etc/default/grub

for safety before edit file copy file with new name :
sudo cp grub grub_bakup

commnet line:
add new line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=SVIDEO-1:d"

Save file

run in terminal:
sudo update-grub

Restart System

Monday, January 19, 2015

Raspberry Pi B+ Model HDMI to VGA Problem

Using HDMI to VGA converter ( using old VGA Montors)  gives with Raspberry Pi may create following problems:

- No Display
- Inconsistent Display ( Some time on/Some time off )
- Display Suddenly go off

Pl Check /BOOT/config.txt file
and make sure following lines there

 For more details visit...

Above Problem solution courtesy...

Thursday, May 8, 2014

Running Android Device (Mobile/Tab) as an Emulator in ADT

First visit this article...

If can not find your USB Vendor IDs

Pl run command lsusb on terminal and take 4 char before :(colon)

ie here IDs is 0bb4...
Bus 001 Device 002: ID 0bb4:0c03 High Tech Computer Corp.

edit this code at file /etc/udev/rules.d/51-android.rules.
SUBSYSTEM=="usb", ATTR{idVendor}=="0bb4", MODE="0666", GROUP="plugdev" 

Change running config... Target Device.. Always prompt to pick device

Select Your Mobile/Tab when ask for device to run.

Monday, March 10, 2014

Warning: require_once() [function.require-once]: SAFE MODE Restriction in effect.

After migration to new server Linux-Php on share hosting following error occur

Warning: require_once() [function.require-once]: SAFE MODE Restriction in effect. The script whose uid is 1438 is not allowed to access /usr/lib/php/PEAR.php owned by uid 0 in /home/yourdomain/php/DB.php on line 30

Warning: require_once(/usr/lib/php/PEAR.php) [function.require-once]: failed to open stream: No such file or directory in /home/yourdomain/php/DB.php on line 30

Fatal error: require_once() [function.require]: Failed opening required 'PEAR.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/yourdomain/php/DB.php on line 30

Resolve it by adding Include path in your php script....

some server not support
require_once( "/home/yourdomain/php/DB.php" );

It should be...
$path = '/home/yourdomain/php/';
set_include_path($path . PATH_SEPARATOR . get_include_path());
require_once( "DB.php" );