TroubleShooting

My program does not start

If your program does not start

• make sure you have execute priviledges for it using the command

ls -l

• make sure the program can load its libraries using the command

ldd

• look what the problem is using the command

strace

My network connection is broken

• TroubleShooting network

Umount does not work

lsof | grep /mnt

Then kill the process.

root-Password is lost

Boot Linux with the parameter "init=/bin/bash" You get a root-shell. Enter:

mount -o remount, rw /
passwd
mount -o remount,ro /

and reboot

find out which files are accessed by a program

To find out which files are accessed by a program start it with

strace -e open program