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@@ -334,6 +334,15 @@ clear any host patches located in `/usr/local/share/pnor/`.
The factory reset interface can be found here:
https://github.com/openbmc/phosphor-dbus-interfaces/blob/02b39246d45ea029a1652a49cc20eab7723dd63b/xyz/openbmc_project/Common/FactoryReset.interface.yaml
+### Image Storage Location
+
+When a BMC image is activated (i.e. when "RequestedActivation" is set to "Active"),
+UBI volumes are created on the BMC chip for the image. The alternate BMC chip
+can also be used to store images. This is determined by "BMC_RO_MTD". Using both
+the alternate BMC chip and the BMC chip allows for multiple BMC images to be
+stored. By default, only the BMC chip is used. To use both, set "BMC_RO_MTD" to
+"alt-bmc+bmc".
+
### Implementation
More information about the implementation of the UBI code update can be found at
OpenPOWER on IntegriCloud