On Fri, 13 Aug 2021 18:08:38 -0600, jim.cromie@gmail.com said:
then I added BTRFS_FS, since thats the host fs. of course it didnt work.
VFS: Cannot open root device "(null)" or unknown-block(0,0): error -2 Please append a correct "root=" boot option; here are the available partitions: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) CPU: 0 PID: 1 Comm: swapper Tainted: G W 5.14.0-rc4+ #5
And it didn't find any usable btrfs (or other fs it knew about)
Heres a working kernel (if overlarge config)
VFS: Mounted root (9p filesystem) readonly on device 0:20.
Anybody see any clues ?
That '9p filesystem' should be a really big clue. If that's the root fs that you actually want to use, you need to do two things: a) point at it with root= b) have 9p filesystem support in the kernel