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Linux Disk Management

· 2 min read
Fa'iz Maulana Habibi
Fa'iz Maulana Habibi
College Student of Dian Nuswantoro University

Cek Disk & Partisi​

Gunakan lsblk untuk melihat daftar device dan filesystem:

lsblk -f
NAME        FSTYPE FSVER LABEL    UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
sda
├─sda1
├─sda2      ntfs         DATA     A61087D71087ACBD
└─sda3      btrfs                 25902326-073a-4842-9c65-ad8d62222771  254.1G    15% /
sdb
nvme0n1
├─nvme0n1p1 ntfs         Recovery 1ED80811D807E63D
├─nvme0n1p2 vfat   FAT32          5A08-EE40                              58.7M    39% /boot/efi
├─nvme0n1p3
└─nvme0n1p4 ntfs         OS       5A360D4B360D2A19

Format Disk​

In linux, ensure the package is available.

sudo pacman -S dosfstools

Example format to EXT32:

sudo mkfs.vfat -F 32 /dev/sdb1
Attention

Hati-hati: /dev/sdb1 adalah partisi, bukan seluruh disk (/dev/sdb).

Mount (pasang filesystem)​

Buat folder mountpoint:

sudo mkdir -p /mnt/usb

Mount:

sudo mount /dev/sdb1 /mnt/usb

Cek hasil:

ls /mnt/usb
df -h | grep sdb

Umount (lepas filesystem)​

sudo umount /dev/sdb1

# or

sudo umount -l /mnt/usb   # lazy umount
sudo umount -f /mnt/usb   # force umount (hati-hati)
Attention

Jika device busy, bisa lakukan cara ini.

sudo umount -l /mnt/usb   # lazy umount
sudo umount -f /mnt/usb   # force umount (hati-hati)

Tapi saya lebih merekomendasikan untuk keluar dari direktory yang mau di umount terlebih dahulu. (lebih aman)

Advanced Mount Options​

Mount dengan opsi:

sudo mount -t vfat -o uid=1000,gid=1000,umask=022 /dev/sdb1 /mnt/usb

Opsi penting:

  • ro → read-only
  • rw → read-write
  • noexec → cegah eksekusi file biner
  • nosuid → abaikan SUID/SGID
  • nodev → abaikan device file

Mount berdasarkan UUID / LABEL:

sudo mount UUID=5A08-EE40 /mnt/usb
sudo mount LABEL=DATA /mnt/usb

Bind mount (pasang folder ke folder lain):

sudo mount --bind /home/user/Downloads /mnt/usb

Mount ISO/IMG:

sudo mount -o loop archlinux.iso /mnt/iso

Hapus Filesystem (Wipe)​

Hilangkan signature filesystem:

sudo wipefs -a /dev/sdb

Overwrite awal disk (100MB pertama):

sudo dd if=/dev/zero of=/dev/sdb bs=1M count=100

Hapus partisi:

sudo fdisk /dev/sdb
# Tekan d untuk delete, w untuk simpan