On 08/06/2020 11:06, Peter Humphrey wrote: > Afternoon all, > > Is there something special for me to set in the kernel config to enable it to > find the root partition? I copied the config from 5.4.38, ran oldconfig and > followed most of the suggested answers; but it won't boot.
Sounds like missing drivers. oldconfig didn't do everything it was supposed to. Moving across multiple major versions, this is to be expected. A lot of names of things have changed. Do a comparison of your configuration between old and new. diff -uN old-config-file /usr/src/linux/.config Make sure to at least enable NVME with CONFIG_BLK_DEV_NVME=y and try booting 5.7 again. Other than that, the naming scheme may have changed but I don't know about this. For better future-proofing, use a UUID of your root partition rather than a device name. root=UUID=... You can get this UUID with the blkid command. Andrew
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