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Thanks. Just try using Case 1. I didn't take out the USB boot. Instead I 1. mount the synoboot2 to a tmp directory 2. copy the zImage, rd.gz, extra.lzma to synoboot2 3. umount the synoboot2 3. login to the DSM, click DSM update to DSM 6.2.2-24922 4. It will restart twice 5. All ok except the esataportcfg/internalportcfg/usbportcfg in synoinfo.cfg need to modify back to N54L setting. (I use both disk5 & disk6 as esata so I set esataportcfg="0x30" usbportcfg="0x1fc0" internalportcfg="0xf" then reboot one more time my disk6 come back as esata disk

from here : https://xpenology.com/forum/topic/21663-driver-extension-jun-103b104b-for-dsm622-for-3615xs-3617xs-918/ Case 1: update from 6.2.0 to 6.2.2 Case 2: fresh install with 6.2.2 or "migration" (aka upgrade) from 6.0/6.1 Did you first try Case 1 but got unstable and then you do Case 2 with fresh install with backup? Or you do Case 2 with migration so you just put back config backup?

May I know finally you are following the way in Case 1 or Case 2?

Hi are you using ds918 loader and 918 pat?