I made a mistake upgrade from 6.1.7 to 6.2.1 baremetal on N54L with 1.03b loader (DS3615x).     -Hardware: HP N54L baremetal -Network: HP N364T 4 nic OVS bond working -DSM version: 6.1.7    Updated with the 1.03b bootloader, migrated installation and after reboot nothing. The N54L doesn't have serial port to debug   So instead of giving up, I unplugged the disk and started a fresh new instlallation: -DSM: DSM_DS3617xs_23739 -Bootloader:  1.03b