Hello all, there have been numerous attempts to make the numbering of mmcblk devices consistent, mostly by using aliases from the DTS ([1], [2], [3]), but all have been (rightfully) rejected. Unless I have overlooked a more recent development, no attempts for a different solution were made. As far as I can tell, the core of the issue seems to be the following: The existing solutions like LABELs and UUIDs are viable alternatives in many cases, but in particular on embedded systems, this is not quite sufficient: In addition to the problem that more knowledge about the system to boot is required in the bootloader, this approach fails completely when the same firmware image exists on multiple devices, for example on an eMMC and an SD card - not an entirely uncommon situation during the development of embedded systems. With udev, I can refer to a specific partition using a path like /dev/disk/by-path/platform-2194000.usdhc-part2. In [4] it was proposed to add a way to refer to a device path/phandle from the kernel command line. Has there been any progress on this proposal? Kind regards, Matthias [1] https://patchwork.kernel.org/patch/8685711/ [2] https://lore.kernel.org/patchwork/cover/674381/ [3] https://www.spinics.net/lists/linux-mmc/msg26586.html [4] https://www.spinics.net/lists/linux-mmc/msg26708.html
