VFS: Cannot open root device "sda2" or unknown-block(8,2): error -19
Please append a correct "root=" boot option; here are the available partitions:
0100 4096 ram0 (driver?)
...
0800 4224000 sda driver: sd
0801 57344 sda1 ba2edfb9-01
0802 4162560 sda2 ba2edfb9-02
1f00 65536 mtdblock0 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,2)