- BIOS: In BIOS, I did choose UEFI
- EDIT GRUB.CFG (with ubuntu live)
serial --port=0x3F8 --speed=115200
terminal_input serial console
terminal_output serial console
set default='0'
set timeout='2'
set fallback='0'
menuentry 'Synology DS3615xs' --class os {
insmod fat
linux /image/DS3615xs/zImage root=/dev/md0 syno_hdd_powerup_seq=0 netif_num=1 HddHotplug=0 SataPortMap=6 syno_hw_version=DS3615xs vender_format_version=2 vid=0x090C pid=0x1000 console=ttyS0,115200n8 sn=B2LWN06291 mac1=XXXXXXXXXXXX mac2=XXXXXXXXXXXX withefi elevator=your_magic_elevator quiet
initrd /image/DS3615xs/ramdisk.lzma
}
- MIGRATION (system detects older ver. & offers migration or new install, so I did choose migration)
- Exchange ramdisk.lzma ( when I did try to install latest pat version I did get some error, after replacing it - everything was fine )