On Sat, Mar 30, 2024 at 07:32:16PM +0200, Antti-Pekka Känsälä wrote: > Yes, closing Firefox does allow the stick to unmount cleanly, but I still > worry.
To get an idea of what's going on, you can use "lsof":
tomas@trotzki:~$ lsof /dev/sda1
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
bash 3982 tomas cwd DIR 8,1 4096 2 /boot
hexdump 4056 tomas 0r REG 8,1 33464584 28
/boot/initrd.img-5.10.0-26-amd64
hexdump 4074 tomas 0r REG 8,1 7044672 27
/boot/vmlinuz-5.10.0-26-amd64
There are three processes accessing my /dev/sda1 ("aka" /boot). I put
them there to have something to show :-)
Cheers
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