SOLVED

[gritty gyro]

i mounted the usb already and it's plugged into my computer

but i'm not sure if sda 1 is the usb, or if sda 2 is it

because i want to now unmount it

[waxen rivet]

the usb device should be sda, the numbers shows the partitions of the device, if you want to know which one are mounted, you can use the command df

lsblk or mount -l might be better suited as df has a different use-case

[gritty gyro]

so if i want to wipe the device i wipe both partitions?

[waxen rivet]

yes

[gritty gyro]

how come the 2nd one is saying it's not mounted tho?

aren't both of these partitions on this same usb? and i have it plugged in and clicked mount/open

[waxen rivet]

can you take a screenshot of the output of df command?

[gritty gyro]

wait nvm i realized i don't need to umount it i need to have it mounted to wipe..

[waxen rivet]

also if you want to a wipe the usb with a graphical interface, gparted is pretty good

[gritty gyro]

okay wait but how come nothing is returning after shredding it?

[gritty gyro]

doesn't this command work to wipe the usb : sudo shred?

[waxen rivet]

don't know, never tried that command

you can with dd if you want, with sudo dd if=/dev/zero of=/dev/sda bs=1M count=2

[gritty gyro]

okay i'm trying that rn

but it still isn't returning anything i guess the process of wiping takes time

[waxen rivet]

takes a little time, yes

[gritty gyro]

kk ill lyk if it works thanks

[gritty gyro]

its still not returning anything

[waxen rivet]

CTRL+C to stop, you are missing the part bs=1M count=2 in this screenshot, try again adding that too

also if you want to wipe all the usb, you need to put /dev/sda, not /dev/sda1

[gritty gyro]

oh i thought i had to do the individual partitions

thanks

it worked i think

[gritty gyro]

does the records in / out mean it worked?

[waxen rivet]

yes, try out the lsblk command and you shouldn't see the partitions

[gritty gyro]

tysm !

SOLVED

asd