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sudo cryptsetup luksOpen /dev/DEVICE srto_backup
sudo mkfs.ext4 -L MY_BACKUP /dev/mapper/srto_backup
sudo mount /dev/mapper/srto_backup /media/<USER>/SRTO_BACKUP


#############################################################
## Ubuntu - Evolution
#############################################################

# Completely remove ubunutu evolution services.
https://askubuntu.com/questions/315640/how-do-i-completely-remove-evolution
#
cd /usr/share/dbus-1/services
sudo cp org.gnome.evolution.dataserver.* /home/<USER>/my/git/srto/evolution/_usr_share_dbus-1_services/
sudo ln -snf /dev/null org.gnome.evolution.dataserver.Calendar8.service
sudo ln -snf /dev/null org.gnome.evolution.dataserver.
sudo ln -snf /dev/null org.gnome.evolution.dataserver.Sources5.service
sudo ln -snf /dev/null org.gnome.evolution.dataserver.UserPrompter0.service


#############################################################
## Ubuntu - Filesystem
#############################################################

# Show Hide/Hidden Files (Ubuntu)
Control + H

# Mount wired network connection (Ubuntu,linux)
# Useful is policykit-i is accidentally removed
sudo dhclient -v usb0

# Remove trash icon in Ubuntu left panel.
gsettings get org.gnome.shell.extensions.dash-to-dock show-trash   # true
gsettings set org.gnome.shell.extensions.dash-to-dock show-trash false

# Trash folder locaiton on Ubuntu
~/.locat/share/Trash


#############################################################
## Ubuntu - Shortcuts
#############################################################

# Screenshot (Ubuntu)
Druck + Click and drag + Enter    # Snippet.
Shift + Druck                     # Full screenshot.
Control + Alt + Fn + (F1,F2..F12) # Switch display.


#############################################################
## Ubuntu - Filesystem - ZFS
#############################################################

# Create a new zpool
sudo fdisk -l 			# Find device path here

# Destroy (completely remove) a zpool
# WILL DELETE ALL DATA INSIDE
sudo zpool destroy brpool

# Unmount a busy device
umount -l /PATH/OF/BUSY-DEVICE
umount -f /PATH/OF/BUSY-NFS (NETWORK-FILE-SYSTEM)

# ZFS list snapshots
zfs list -r -t snapshot -o name,creation

# Send snapshot backup
sudo zfs send rpool/USERDATA/tim_e5bkz1@autozsys_zh25vd | sudo zfs receive brpool/USERDATA

# Send incremental backup
sudo zfs send rpool@june15b | sudo zfs receive -Fd brpool

# Mount external hard drive with ZFS
sudo zpool list 				# Show available pools
sudo zpool import 			# Shows the brpool name
sudo zpool import brpool	# Import brpool
sudo zpool list 				# Pool now added

# Create a Snapshot with a specific text
sudo zfs snapshot rpool/USERDATA/tim_e5bkz1@june15

# View mounting options for ZFS (zpool)
sudo zfs get 'mountpoint,mounted,canmount' brpool/USERDATA

# zpool status is SUSPENDED
sudo zpool clear brpool
sudo zpool clear -nFX brpool	# Or this

# Cleanup rpool space for zfs
zfs list -t snapshot -o name | while read f; do sudo zfs destroy -r $f; done


#############################################################
## Ubuntu - Flashdrive
#############################################################

# Make bootable flashdrive from iso file (ubuntu)
# Startup Disk Creator
# https://ubuntu.com/tutorials/create-a-usb-stick-on-ubuntu#3-launch-startup-disk-creator

# Automount external hard drive
vi /etc/fstab
UUID=E2B4CF51B4CF273F /media/MY_BACKUP auto nosuid,nodev,nofail,x-gvfs-show 0 2
#
# Find out ID by running
sudo fdisk -l
blkls /dev/<DEVICE>
#
# Or find UUID here for the device
ls -l /dev/disk/by-uuid/

# Backup PC in Ubuntu using timeshift (not for zfs)
https://linuxconfig.org/ubuntu-20-04-system-backup-and-restore

# Allow writing to flash drives
sudo chown $USER:$USER /media/<USER>-srto/ -R


#############################################################
## Ubuntu - Update Error