I just tried the script from the GItHub. While the script itself worked, immediately after it finished, I was unable to put 1517+ pat file into GUI, as GUI started refusing connections. @prt1999 please help. It allows me however, after reboot, to install 7.1.1 again...
Tried again, there are some errors:
twinsen@nas:~$ sudo ./patch.sh
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Synology Avoton model upgrade v1.0 - pRT
----------------------------------------
Check NAS device : OK
Found: DS1515+-j
Check running DSM version: OK
Found: (7.1.1 42962-6)
Download the necessary files.
DS1517+.sql 100%[================================================================================>] 3.52K --.-KB/s in 0s
disableBD.sql 100%[================================================================================>] 397 --.-KB/s in 0s
DSM_DS1515+_42962.pat 100%[================================================================================>] 341.96M 58.8MB/s in 6.4s
sae.py 100%[================================================================================>] 5.56K --.-KB/s in 0s
Unpack DSM: DSM_DS1515+_42962.pat
Synology Archive Extractor v0.92 - K4L0
---------------------------------------
True
Backup bios.ROM to bios.ROM.original
Patch bios.ROM
Upgrade BIOS
Insyde H2OFFT (Flash Firmware Tool) Version (SEG) 100.00.05.02
Copyright (c) 2012 - 2014, Insyde Software Corp. All Rights Reserved.
File loading 100 %
Current BIOS Model Name : MohonPeak
New BIOS Model Name : MohonPeak
Current BIOS Version : M.911
New BIOS Version : M.911
The version of ROM file is the same version of BIOS.
Change synoinfo.conf in synology_avoton_1515+ to synology_avoton_1517+
Change synoinfo.conf in DS1515+ to DS1517+
Create Task Schedulers
Error: near line 1: UNIQUE constraint failed: task.task_name
Error: near line 1: UNIQUE constraint failed: task.task_name
Done.
Then manually update to DS1517+ DSM 7.2.x from the web interface.
EDIT: It succeeded finally. I tried second time, but this time not from root, but from regular user with sudo as in instruction - maybe that was a problem. It updated and now it's 7.2 newest version.