jeff
7
ubinfo showing the "syscfg" as the volume name is what led me to believe that is what it was.
Volume ID: 0 (on ubi1)
Type: dynamic
Alignment: 1
Size: 280 LEBs (35553280 bytes, 33.9 MiB)
State: OK
Name: syscfg
Character device major/minor: 249:100
For the below, It looks like the "magic numbers" for your device are 5 and 7 (not 11 and 13)