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Formattare un device da terminale

Identificare la periferica

Per identificare la periferica in questione si possono utilizzare diversi comandi:

sudo fdisk -l

sudo blkid

df

Ecco un esempio:

sudo blkid

[sudo] password di davide: 
/dev/mapper/luks-44d72477-5d0f-4d0d-a54b-f721a7e5a320: UUID="cd370d97-dd7c-41d1-9b53-1504c89f64fd" TYPE="swap"
/dev/nvme0n1p1: UUID="487ce502-4541-488c-b07f-ea2ac4e91b9f" TYPE="crypto_LUKS" PARTUUID="0559b9a4-01"
/dev/nvme0n1p2: UUID="44d72477-5d0f-4d0d-a54b-f721a7e5a320" TYPE="crypto_LUKS" PARTUUID="0559b9a4-02"
/dev/mapper/luks-487ce502-4541-488c-b07f-ea2ac4e91b9f: UUID="ce884a78-4404-4ea9-b6e7-d543bfb38a41" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sda1: BLOCK_SIZE="2048" UUID="2022-12-17-13-13-38-00" LABEL="d-live nf 11.6.0 kd amd64" TYPE="iso9660" PTUUID="66641822" PTTYPE="dos" PARTUUID="66641822-01"
/dev/sda2: SEC_TYPE="msdos" UUID="DEB0-0001" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="66641822-02"

oppure

df

File system    1K-blocchi     Usati Disponib. Uso% Montato su
udev              7084012         0   7084012   0% /dev
tmpfs             1426036      2380   1423656   1% /run
/dev/dm-0       446217344 113436124 310041144  27% /
tmpfs             7130160      6748   7123412   1% /dev/shm
tmpfs                5120        16      5104   1% /run/lock
tmpfs             1426032       164   1425868   1% /run/user/1000
/dev/sda1         3600960   3600960         0 100% /media/davide/d-live nf 11.6.0 kd amd64

La chiavetta USB è identificata in questo caso come /dev/sda (/dev/sda1 e /dev/sda2 sono le due partizioni).

Per il comando blkid e sull'uuid vedere qui

Formattazione della periferica

Smontare la chiavetta USB:

sudo umount /dev/sda

NTFS

Smontata la chiavetta dal sistema, digitare:

mkfs.ntfs /dev/sda -v

EXT4

mkfs.ext4 /dev/sda -v

Un esempio:

sudo mkfs.ext4 -L "DAVIDE4GB" /dev/sda -v

mke2fs 1.46.6 (1-Feb-2023)
fs_types for mke2fs.conf resolution: 'ext4'
/dev/sda contains a ext4 file system
        last mounted on Sun Mar 19 12:18:08 2023
Proceed anyway? (y,N) y
Filesystem label=DAVIDE4GB
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
237104 inodes, 947456 blocks
47372 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=970981376
29 block groups
32768 blocks per group, 32768 fragments per group
8176 inodes per group
Filesystem UUID: 62fd2424-ae9d-45f8-84d9-5a3b63020661
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736

Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done

dove -L specifica il nome del filesystem, così che sia identificabile più facilmente. L'opzione -v indica verbose.

Verificare la Formattazione

sudo fsck /dev/sda

sudo fsck /dev/sda 
fsck da util-linux 2.38.1
e2fsck 1.46.6 (1-Feb-2023)
/dev/sda is mounted.
e2fsck: Cannot continue, aborting.

Oppure col comando:

sudo file -sL /dev/sda

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