Different device name for usb disks

[fikiz]

Hi all.

I just fu***d up my system writing an image file onto /dev/sda, just because one moment ago /dev/sda was the same usb drive on my Raspberry PI. #@!?£$@%(!$!"$@!!!!!!! I lost MBR, boot partition and one LVM logical volume; I'm still evaluating the damage size but this isn't (still) my question.

Is it possible to write an udev rule to name differently all usb storage devices? HDD, pendrives, enumerating their partitions too (possibly not usb dvd drives, /dev/sr0 is ok)? Could you help me to do that?

Thanks!

[frostschutz]

Those udev rules exist by default, have a look around in /dev/disk/.../...

For more descriptive names use labels, and partlabels (but have a care to give only unique label names)

[fikiz]

I know, but I'm looking for something like:

/dev/usba = first usb drive
/dev/usbb = second usb drive

just like /dev/sda and /dev/sdb are first and second storage device.

[Naib]

Its not as simple as that...

USB is a hotswappable and thus the default /dev label is provided based upon detection. aspects of the USB hub startup can easily re-order w.r.t. USB what physical device is assigned a node.

This is why udev rules exist to latch onto UUID to assign specific node labels to specific devices, independent of the detection order
_________________
#define HelloWorld int
#define Int main()
#define Return printf
#define Print return
#include <stdio>
HelloWorld Int {
Return("Hello, world!\n");
Print 0;

[fikiz]

I understand.

I'll try to make a habit going deep into /dev/disk/... when I'm doing these kind of things.

Anyway, if anybody had an idea, I'm listening

Bye

[Roman_Gruber]