Mese: Luglio 2016

to mount
udisksctl mount --block-device /dev/disk/by-label/<DISK LABEL>

to unmount
udisksctl unmount --block-device /dev/disk/by-label/<DISK LABEL>

script set-touchpad

#!/bin/bash

CMD="gxmessage -borderless -ontop -title Information -center -timeout 3 "
PSMOUSE=`lsmod grep psmouse`

# detect if is superuser
if [[ $EUID -ne 0 ]] then
    echo -e "This script must be run as rootn"
    exit 1
fi


if [ "$PSMOUSE" == "" ] then
    # enable touchpad
    modprobe psmouse
    $CMD -fn "sans 30" Touchpad ENABLED

else
    # disable touchpad
    modprobe -r psmouse
    $CMD -fn "sans 30" Touchpad DISABLED

fi

add to sudoers command /usr/local/bin/set-touchpad

add a shortcut keyboard to sudo /usr/local/bin/set-touchpad using Ctrl+Fn+F9

—

sudo gedit /etc/default/grub
find the line starting with GRUB_CMDLINE_LINUX_DEFAULT
add “acpi_osi=” to the options
sudo update-grub2
reboot

mount network folders

1. detect if in /etc/mtab file isn’t present already gvfsd-fuse mount point for this user, in case remove it

2. create new gvfsd-fuse mount point:
$ fusermount -zu ~/.gvfs
$ /usr/libexec/gvfsd-fuse ~/.gvfs -o big_writes

3. create folder
# mkdir ~/.gvfs

4. create keyring password
$ secret-tool store --label="armando@192.168.0.10" user armando domain MGAGROUP server 192.168.0.10 protocol smb schema org.gnome.keyring.NetworkPassword

5. create mount script mount_action in /usr/local/bin
#! /bin/bash
gvfs-mount smb://armando@192.168.0.10/share

6. set executable permission
# chmod 775 /usr/local/bin/mount_action

7. add mount_action to autostart file (if openbox) or list of application to start at login (in other windows manager)

will be created a folder
~/.gvfs/smb-share:server=<server_name>,share=<share_name>
in my case:
~/.gvfs/smb-share:server=192.168.0.10,share=share

8. create a symlink to mounted folder
$ ln -s ~/.gvfs/smb-share:server=192.168.0.10,share=share ~/server_share

added to /usr/bin/monodevelop script this row before mono command:
unset GNOME_DESKTOP_SESSION_ID

$ screen -d -m <myscript>
$ screen -d -m unrar e -p<password> <rar file>

as root can use:
$ DISPLAY=:0 import -window root /tmp/shot.png

or can use:
$ DISPLAY=:0 scrot '/tmp/%Y-%m-%d_$wx$h_scrot.png'

set owner and group
$ chown -R <user>:<group> <folder_path>

change permissions
$ chmod -R 775 <folder_path>
$ chmod 664 $(find <folder_path> ! -type d)

or using
$ find /mnt/share ! -type d -exec chmod 664 {} \;

#! /bin/sh

# chkconfig: 345 35 65
# description: VirtualBox virtual machines manager
#
### BEGIN INIT INFO
# Provides:       startvm
# Required-Start: vboxdrv
# Required-Stop:  vboxdrv
# Default-Start:  2 3 4 5
# Default-Stop:   0 1 6
# Description:    VirtualBox virtual machines manager
### END INIT INFO

PATH=$PATH:/bin:/sbin:/usr/sbin

# Source function library.
. /etc/init.d/functions

# user to use to start VirtualBox
VMUSER=armando

# virtual machines to manage
VMS=(
    "CentOS 7"
)



case "$1" in
  start)
    echo "Starting VirtualBox VM ..."
    for VM in "${VMS[@]}"
    do
        sudo -u $VMUSER VBoxManage startvm "$VM" --type headless >> /var/log/startvm.log 2>&1
    done
    success
    ;;
  stop)
    echo "Saving state of VirtualBox VM ..."
    for VM in "${VMS[@]}"
    do
        sudo -u $VMUSER VBoxManage controlvm "$VM" savestate >> /var/log/startvm.log 2>&1
    done
    success
    ;;
  *)
    echo "Usage: /etc/init.d/startvm {startstop}"
    exit 1
    ;;
esac

exit 0

remember to modify in file /etc/sudoers row

Defaults    requiretty

to

#Defaults    requiretty

 

a more recent approach stay here https://ubuntuforums.org/showthread.php?t=2387221

Comandi utili per la gestione

Di seguito vediamo i principali comandi che ci permettono di gestire la/le VM installate sul nostro server. Innanzitutto possiamo ottenere l’elenco di quelle registrate:

$ VBoxManage list vms

Se volessimo la lista delle macchine virtuali attive:

$ VBoxManage list runningvms

Per visualizzare le caratteristiche di una specifica macchina:

$ VBoxManage showvminfo "winxp"

Per fermare la VM “staccando il cavo di alimentazione”:

$ VBoxManage controlvm "winxp" poweroff

per una chiusura del sistema controllata:

$ VBoxManage controlvm "winxp" acpipowerbutton

per farlo invece salvando lo stato su disco:

$ VBoxManage controlvm "winxp" savestate

per resettarla:

$ VBoxManage controlvm "winxp" reset

per metterla in pausa e risvegliarla:

$ VBoxManage controlvm "winxp" pause
$ VBoxManage controlvm "winxp" resume

per avviare la macchina virtuale senza GUI (il carattere ‘&’ finale fa in modo che il processo lanciato sia svincolato dalla console in uso)

per avviare un client remote desktop

$ rdesktop -T <window title> -k it -g 1024x768 -a 16 localhost:<listen port>

-k = keyboard layout
-g = geometria
-a = profondità del colore