Hi,

On Mon, Jul 20, 2026 at 3:10 PM Óscar García Amor <[email protected]> wrote:

> [...]


The two devices serve different purposes:


> % ls -l /dev/nvme*
> crw------- 1 root root 235, 0 jul 20 08:22 /dev/nvme0     <- Why?
>

/dev/nvme0 is an administrative character interface where access must be
restricted to root to prevent risks like bricking hardware during firmware
updates, the use of nvme-cli etc.

brw-rw---- 1 root disk 259, 1 jul 20 08:22 /dev/nvme1n1
>

/dev/nvme0n1 is a block device so having a group like disk can be used to
non-root services raw access without exposing the administrative interface.

Best,
/m

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