Linux 挂载 ISO IMG 文件方法

1. 使用fdisk -l  <iso.file> 查看起始块位置

2. Disk Stick.img: 3984 MB, 3984588800 bytes
   249 heads, 6 sectors/track, 5209 cylinders, total 7782400 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
   Disk identifier: 0x0004bfaa
   
       Device Boot      Start         End      Blocks   Id  System
   Stick.img1   *         128     8015999     4007936    b  W95 FAT32

   起始块位于 128, 每块大小512byte, 起始偏移为: 128*512

3. 使用 loop 类型挂载, 设置offset. 

   mount -o loop,offset=$((128*512)) Stick.img /mnt/tmp