On 26.10.23 17:03, Martin Wilck wrote:
On Thu, 2023-10-26 at 12:32 +0200, Oliver Neukum wrote:
True in that regard is a name that is
a) based on a path b) refers to a device as opposed to a medium
To illustrate my point:
/dev/disk/by-path pci-0000:02:00.0-nvme-1 pci-0000:02:00.0-nvme-1- part4 pci-0000:06:00.3-usb-0:1.3.4:1.0-scsi- 0:0:0:3 pci-0000:06:00.3-usbv2-0:1.3.4:1.0-scsi-0:0:0:3 pci-0000:02:00.0-nvme-1-part1 pci-0000:06:00.3-usb-0:1.3.4:1.0-scsi- 0:0:0:0 pci-0000:06:00.3-usbv2-0:1.3.4:1.0-scsi-0:0:0:0 pci-0000:02:00.0-nvme-1-part2 pci-0000:06:00.3-usb-0:1.3.4:1.0-scsi- 0:0:0:1 pci-0000:06:00.3-usbv2-0:1.3.4:1.0-scsi-0:0:0:1 pci-0000:02:00.0-nvme-1-part3 pci-0000:06:00.3-usb-0:1.3.4:1.0-scsi- 0:0:0:2 pci-0000:06:00.3-usbv2-0:1.3.4:1.0-scsi-0:0:0:2
/dev/disk/by-uuid/ 6b557439-a722-46c6-b9fa-e3395a5f4d40 722799ab-821e-4921-9c20- f97d284ca32e 9C52-D41D fe8a60ac-2e5b-4090-a9eb-d68149568dfb
A lot of devices (not media) that exist and need to be referred to somehow.
And you don't see by-id links for these?
Yes, I have them, but look at how they are constructed. They are (showing all for comparison): nvme-eui.ace42e00060644b22ee4ac0000000001 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G_1-part1 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G-part4 nvme-eui.ace42e00060644b22ee4ac0000000001-part1 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G_1-part2 usb-Generic_USB_CF_Reader_058F312D81B1-0:1 nvme-eui.ace42e00060644b22ee4ac0000000001-part2 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G_1-part3 usb-Generic_USB_CF_Reader_058F312D81B1-0:1-part1 nvme-eui.ace42e00060644b22ee4ac0000000001-part3 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G_1-part4 usb-Generic_USB_MS_Reader_058F312D81B1-0:3 nvme-eui.ace42e00060644b22ee4ac0000000001-part4 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G-part1 usb-Generic_USB_SD_Reader_058F312D81B1-0:0 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G-part2 usb-Generic_USB_SM_Reader_058F312D81B1-0:2 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G_1 nvme-SKHynix_HFS512GD9TNI-L2B0B_CS0AN73541VA1AL6G-part3 usb-Generic_USB_SM_Reader_058F312D81B1-0:2. That is taking the path as ID. We are presenting the path and the vendor - Bus 004 Device 005: ID 058f:9540 Alcor Micro Corp. AU9540 Smartcard Reader - as id. That does not change the core problem. The only unique information about a device that we'll always have is the path. Regards Oliver