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--- CHEATSHEET CREATE BOOTABLE USBKEY

bob@nuc:~$ sudo dd if=/dev/random of=/dev/sdc status=progress
3473805824 bytes (3,5 GB, 3,2 GiB) copied, 241 s, 14,4 MB/s^C
6784785+0 records in
6784785+0 records out
3473809920 bytes (3,5 GB, 3,2 GiB) copied, 241,046 s, 14,4 MB/s

bob@nuc:~$ sudo dd if=/dev/null of=/dev/sdc status=progress
0+0 records in
0+0 records out
0 bytes copied, 0,000107582 s, 0,0 kB/s


bob@nuc:~$ sudo lsblk
NAME                  MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT

sda                     8:0    0 465,8G  0 disk  
└─sda1                  8:1    0 465,8G  0 part  
sdb                     8:16   0   3,7T  0 disk  
└─sdb1                  8:17   0   3,7T  0 part  
sdc                     8:32   1  29,5G  0 disk  
├─sdc1                  8:33   1   480K  0 part  
└─sdc4                  8:36   1 663,5M  0 part  /media/saurus/6156253e79cbde75
nvme0n1               259:0    0 931,5G  0 disk  
├─nvme0n1p1           259:1    0   512M  0 part  /boot/efi
├─nvme0n1p2           259:2    0   732M  0 part  /boot
└─nvme0n1p3           259:3    0 930,3G  0 part  
  └─nvme0n1p3_crypt   253:0    0 930,3G  0 crypt 
    ├─vgubuntu-root   253:1    0 929,3G  0 lvm   /
    └─vgubuntu-swap_1 253:2    0   976M  0 lvm   [SWAP]
    
    


bob@nuc:~$ umount /dev/sdc4

bob@nuc:~$ sudo dd if=~/Downloads/install70.img of=/dev/sdc status=progress
681026048 bytes (681 MB, 649 MiB) copied, 30 s, 22,7 MB/s
1360832+0 records in
1360832+0 records out
696745984 bytes (697 MB, 664 MiB) copied, 38,6252 s, 18,0 MB/s