Removable Storage

Partitions on removable storage:

• floppy disks – don’t have a partition table.

  • has a FAT12 file system as a single partition.

• memory cards – typically use DOS partitions.

  • FAT32 – max volume size 32 GB, max file size 4 GB.

  • exFAT (or FAT64) – max volume size 128 PB, max file size 128 PB.

• external hard drives.

  • DOS partitions are commonly sold already with an NTFS file system in place.

Optical disks:

• CDs – ISO 9660.

  • ISO 9660 is very strict about file names.

  • there are extensions (Joliet, Rock Ridge) to overcome these limitations.

  • there are also hybrid CDs:

    • ISO 9660 + Joliet.

    • ISO 9660 + Apple HPS.

  • bootable CDs for intel PCs can contain a DOS partition.

• CD-R.

  • use sessions, each one can be treated as a partition.

  • each time data is added to the CD-R a new session is created.

  • most OS only show the last created session.

    • on OS X it’s possible to see all sessions.

    • on Linux, it’s possible to manually mount previous sessions.

    • on Windows-specific software is required e. g. Iso Buster