Tom 2251733744 Kernel: Allow specifying partition index with NVMe devices ...

Since NVME devices end with a digit that indicates the node index we
cannot simply append a partition index. Instead, there will be a "p"
character as separator, e.g. /dev/nvme0n1p3 for the 3rd partition.
So, if the early device name ends in a digit we need to add this
separater before matching for the partition index.

If the partition index is omitted (as is the default) the root file
system is on a disk without any partition table (e.g. using QEMU).

This enables booting from the correct partition on an NVMe drive by
setting the command line variable root to e.g. root=/dev/nvme0n1p1

2022-01-02 22:26:36 +01:00

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