Hi Oliver, On Wed, Feb 26, 2025 at 02:29:48PM +0000, Oliver ROHE wrote: > root=PARTUUID=SSSSSSSS-PP > > Where SSSSSSSS is a zero-filled 32-bit MBR disk signature, > and PP is a zero-filled partition number in hexadecimal format. Thanks for fixing this. This doesn't seem to be documented in Linux, so I digged in the code and added this to the commit message: | This is not explicitly documented in Linux, but can be seen in [1]. | | [1] https://github.com/torvalds/linux/blob/76544811c850a1f4c055aa182b513b7a843868ea/block/partitions/msdos.c#L108 Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |