Script demonstrating mounting a raw disk image with multiple partitions from zsh

mount-raw-disk-img.sh

#!/usr/bin/env bash

fdisk -l 2020-08-20-raspios-buster-arm64.img

### Example Output

# Disk 2020-08-20-raspios-buster-arm64.img: 3.5 GiB, 3779067904 bytes, 7380992 sectors
# Units: sectors of 1 * 512 = 512 bytes
# Sector size (logical/physical): 512 bytes / 512 bytes
# I/O size (minimum/optimal): 512 bytes / 512 bytes
# Disklabel type: dos
# Disk identifier: 0xad09722e
# 
# Device                               Boot  Start     End Sectors  Size Id Type
# 2020-08-20-raspios-buster-arm64.img1        8192  532479  524288  256M  c W95 FAT32 (LBA)
# 2020-08-20-raspios-buster-arm64.img2      532480 7380991 6848512  3.3G 83 Linux

mount -o offset=$((512*8192)) 2020-08-20-raspios-buster-arm64.img /media/iso

### No Output

ls /media/iso

#### Example Output

#bcm2708-rpi-b.dtb       bcm2708-rpi-zero-w.dtb    bcm2710-rpi-cm3.dtb  config.txt     fixup4x.dat   issue.txt     LICENCE.broadcom  start4x.elf
#bcm2708-rpi-b-plus.dtb  bcm2709-rpi-2-b.dtb       bcm2711-rpi-4-b.dtb  COPYING.linux  fixup_cd.dat  kernel7.img   overlays          start_cd.elf
#bcm2708-rpi-b-rev1.dtb  bcm2710-rpi-2-b.dtb       bcm2711-rpi-cm4.dtb  fixup4cd.dat   fixup.dat     kernel7l.img  start4cd.elf      start_db.elf
#bcm2708-rpi-cm.dtb      bcm2710-rpi-3-b.dtb       bootcode.bin         fixup4.dat     fixup_db.dat  kernel8.img   start4db.elf      start.elf
#bcm2708-rpi-zero.dtb    bcm2710-rpi-3-b-plus.dtb  cmdline.txt          fixup4db.dat   fixup_x.dat   kernel.img    start4.elf        start_x.elf