Making bootable USB sticks was always easy with MacOs and Balena Etcher. But for some reason this stopped working (for me) with Catalina.
But not to worry! It can now be done with this Perl script I wrote today: iso2usbstick.pl.
Usage is simple. Help message says it all.
And here with syntax highlighting. Just because we can.
$ ./iso2usbstick.pl You have to be root! Usage. : # ./iso2usbstick.pl isofile device Example: # ./iso2usbstick.pl /Users/krusjme/Downloads/kubuntu19.iso /dev/disk2
The script takes care of basically al the hassle that you may run into doing all the command line stuff yourself. It unmounts all possibly mounted volumes on the destination device and it doesn’t nag about existing files. It just overwrites them. On top of that it shows a performance indicator thanks to gdd instead of good old dd.
Here, something like a ‘screen shot’! 🙂
$ sudo ./iso2usbstick.pl CentOS-7-x86_64-NetInstall-1908.iso disk2 Destination disk is given without /dev. Adding it now Full destination path is: /dev/disk2 Inventorizing possible mounts on destination disk Unmounting volumes on destination disk Umounting volume: /dev/disk2s1 Volume TESTVOLUME on disk2s1 unmounted Making up HDIUtil-command Converting iso to raw image Reading Master Boot Record (MBR : 0)… Reading CentOS 7 x86_64 (Apple_ISO : 1)… Reading (Type EF : 2)… Reading CentOS 7 x86_64 (Apple_ISO : 3)… Elapsed Time: 1.024s Speed: 539.0Mbytes/sec Savings: 0.0% created: /Users/KrusjMe/Desktop/iso2usbstick/CentOS-7-x86_64-NetInstall-1908.dmg Making up DD-command DD-command: /opt/local/bin/gdd bs=1M status=progress if=CentOS-7-x86_64-NetInstall-1908.dmg of=/dev/disk2 578551808 bytes (579 MB, 552 MiB) copied, 158 s, 3.7 MB/s 551+1 records in 551+1 records out 578551808 bytes (579 MB, 552 MiB) copied, 158.053 s, 3.7 MB/s
With thanks to lewan.com for the command line instructions
Leave a Reply