How to mount ISO image file
For viewing the content of the ISO image file like *.iso, we can mount it to filesystem and loop up its contained files.
Mounting the ISO image file in linux is much easier than doing in macOS. Because ISO use ISO9660 file system while the hdiutil in macOS does not support it originally. That will require more steps to implement in comparison with one command like mount in Linux.
How to mount iso image in Linux
osx - Can a Mac mount a Debian install CD? - Unix & Linux Stack Exchange
Mount ISO file on Linux
Mount ISO file on macOS
- Attaching as a block device
# the '-nomount' option avoids the 'mount failed' error
❯ hdiutil attach -nomount mantic-mini-iso-amd64.iso
/dev/disk6 GUID_partition_scheme
/dev/disk6s1 Microsoft Basic Data
/dev/disk6s2 EFI
/dev/disk6s3 Microsoft Basic Data
❯ diskutil info /dev/disk6s2
Device Identifier: disk6s2
Device Node: /dev/disk6s2
Whole: No
Part of Whole: disk6
Volume Name: ESP
Mounted: No
Partition Type: EFI
File System Personality: MS-DOS FAT12
Type (Bundle): msdos
Name (User Visible): MS-DOS (FAT12)
- [Optional] Load CD9660
# Load the kext module
❯ sudo kmutil load -p /System/Library/Extensions/cd9660.kext
- Mount the disk with cd9660 (aka ISO9660) file system
# create mount point
❯ mkdir -p /tmp/ubuntu-mantic-iso
# mount the disk
❯ mount -t cd9660 /dev/disk6 /tmp/ubuntu-mantic-iso
View the iso files,
❯ tree -h -L 3 /tmp/ubuntu-mantic-iso
[2.0K] /tmp/ubuntu-mantic-iso
├── [2.0K] EFI
│ └── [2.0K] boot
│ ├── [938K] bootx64.efi
│ ├── [2.2M] grubx64.efi
│ └── [841K] mmx64.efi
├── [2.0K] boot
│ └── [2.0K] grub
│ ├── [2.0K] fonts
│ ├── [ 169] grub.cfg
│ ├── [ 38K] i386-pc
│ └── [ 36K] x86_64-efi
├── [2.0K] boot.catalog
└── [2.0K] casper
├── [ 56M] initrd
└── [ 13M] vmlinuz
9 directories, 7 files
- Umount the disk
❯ umount /dev/disk6
- Detach the disk
❯ hdiutil detach /dev/disk6