I found this thread because I am also interested in upgrading to DSM 6.1 and am already at DSM 6.0.2. I was comparing the grub.cfg files between v1.02a and 1.02b, and unless I am missing something, there is a critical omission in the v1.02b image and grub.cfg. v1.02a contains three directories on partition 0; EFI, grub, and image. v1.02b contains only EFI and grub on partition 0. Also the grub.cfg on v1.02b is missing the references to any boot image. As a result, booting off that image results in the bootloader screen constantly cycling since there is nothing to boot into. Is there a more complete version of the v1.02b image? If not, are there instructions for adding the appropriate image to the img file? Thank you.
I experienced quite the similar struggle. In my case, I tried the Update from DSM 6.0.2 to 6.1.3 on HP Proliant Gen8 baremetal. But I couldn't bott from the image. The solution was to use the MBR loader version, because the HP seems not to support UEFI. Because the Size is quite the same as before, I assume the image file you are missing is now in somwhere else in the loader. I hope this helps, gibe the MBR loader a try.
How to update Jun's loader?
in General Post-Installation Questions/Discussions (non-hardware specific)
Posted
I experienced quite the similar struggle. In my case, I tried the Update from DSM 6.0.2 to 6.1.3 on HP Proliant Gen8 baremetal. But I couldn't bott from the image. The solution was to use the MBR loader version, because the HP seems not to support UEFI. Because the Size is quite the same as before, I assume the image file you are missing is now in somwhere else in the loader. I hope this helps, gibe the MBR loader a try.