'Cannot open root device' or 'volume group xxx not found' when booting with a Linux Kernel
### Problem ``` VFS: Cannot open root device "sda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: V...
### Problem ``` VFS: Cannot open root device "sda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: V...