ubuntu:iso:create_iso_from_a_bootable_usb_drive:using_mkisofs
Table of Contents
Ubuntu - ISO - Create ISO from a Bootable USB Drive - Using mkisofs
mkisofs creates ISO 9660 file system images, typically for generating CD and DVD images.
Convert to ISO File
First, let’s install mkisofs:
sudo apt install mkisofs
Create a mount point:
mkdir /mnt/usb_drive
Mount the USB drive
sudo mount /dev/sdb1 /mnt/usb_drive
Create the ISO image from the mounted directory
sudo mkisofs -o myisofile.iso -R -J -input-charset utf-8 /mnt/usb_drive/
returns:
Total translation table size: 0 Total rockridge attributes bytes: 3852 Total directory bytes: 123456 Path table size(bytes): 141 Max brk space used 26000 1312794 extents written (999 MB)
NOTE:
- -o: specifies the name of the output ISO image file.
- -R: generates the Rock Ridge extension for UNIX file attributes.
- -J: generates the Joliet extension for Windows file systems.
- -input-charset utf-8 the character encoding to be used when creating the ISO image.
Verify the ISO file
isoinfo -d -i myisofile.iso
returns:
CD-ROM is in ISO 9660 format System id: LINUX Volume id: CDROM ... Volume set size is: 1 Volume set sequence number is: 1 Logical block size is: 2048 Volume size is: 123456 Joliet with UCS level 3 found Rock Ridge signatures version 1 found
NOTE: The resulting output confirms that the myisofile.iso file is in the ISO 9660 format.
ubuntu/iso/create_iso_from_a_bootable_usb_drive/using_mkisofs.txt · Last modified: 2024/07/30 15:33 by peter