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Asked: 2015-02-03 08:43:58 +0800 CST

How to format an external 64GB SD card (exfat) using command line?

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I have an microSD card with 64GB capacity which has exFAT file system. If I insert it to my card reader, it is mounted automatically. But I am looking for a command to format the card. I installed exfat-fuse and exfat-utils, but could not find proper command to format my microSD card.

command-line

2 Answers

  1. Best Answer

    Straight from apt-cache show exfat-utils is the description:

    Description-en: utilities to create, check, label and dump exFAT filesystem
 Utilities to manage extended file allocation table filesystem.
 This package provides tools to create, check and label the
 filesystem. It contains
  - dumpexfat to dump properties of the filesystem
  - exfatfsck / fsck.exfat to report errors found on a exFAT filesystem
  - exfatlabel to label a exFAT filesystem
  - mkexfatfs / mkfs.exfat to create a exFAT filesystem.

    You would use mkfs.exfat to format the partition, the same as you would use mkfs.fat to format a normal FAT partition.

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  2. open the terminal:

    1/ type "man mkfs.exfat", to read how to use it.

    2/ type "sudo fdisk -l", to determine where your sd card is mounted. example: /dev/sdc

    3/ to format a 128gb SD card and give it the name of "sdxc128",

    type "sudo mkfs.exfat -n sdxc128 /dev/sdc"

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