Site TIPS PAGE🔎   UP ONE LEVEL
 OJB's Web Site. V 2.1.tip tips mac owen2 
Tip

Up to OJB's Mac Tips List

Erase a Disk from Terminal

To erase a Disk from the Command Line...

Get disk identifier, use: diskutil info "DISKNAME" | grep "Device Node"
Then erase disk using: diskutil eraseDisk FILESYSTEM DISKNAME DISKIDENTIFIER

Where FILESYSTEM is JHFS+ (Journalled), HFS+, FAT32
DISKNAME is the name to be given to the disk
DISKIDENTIFIER is the ID returned above (eg /dev/disk6s2)

Erase volume example: diskutil eraseVolume JHFS+ Erased /dev/disk6s2
Erase disk example: diskutil eraseDisk JHFS+ Erased disk6



My latest blog post: Problematic Ideas: Some people will read this and think, what's the problem here? (posted 2025-08-30).
Warning: mysqli_connect(): MySQL server has gone away in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51

Warning: mysqli_connect(): Error while reading greeting packet. PID=99415 in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51

Warning: mysqli_connect(): (HY000/2006): MySQL server has gone away in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51

Warning: mysqli_error() expects parameter 1 to be mysqli, boolean given in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 52
Could not connect to MySQL: