Raspberry Pi CMOS file

Having taken care in the installation of today’s, 16Oct16, Pi ROM that the old CMOS did not get written back into the new ROM image I can say that CMOS settings are not saved, there is no CMOS file and the Module SDCMOS 0.17 is dormant.

The set up here has the firmware in the root of an unpartitioned SD card, RISC OS is on a SCSI pen.

The firmware is the latest.

CONFIG.TXT has been updated.

disable_overscan=1
hdmi_drive=2
fake_vsync_isr=1
gpu_mem=64
init_emmc_clock=100000000
kernel=RISCOS.IMG
framebuffer_swap=0
ramfsfile=CMOS
ramfsaddr=0x508000

You’ll need to do

*SaveCMOS !Boot.Loader.CMOS

Having taken care in the installation of today’s, 16Oct16, Pi ROM that the old CMOS did not get written back into the new ROM image

That step can be much more cavalier, since the newer ROM doesn’t have the magic “C305” marker in it so the old SDCMOS would abandon writing to it. Bonus points to Ben at ROOL for thinking about forward compatibility.

Perhaps a small obey file on the desktop, or accessed via a create/save CMOS option from an existing item (right-click Apps or menu option in switcher?)

testing without is only to ensure booting doesn’t fail, rather than implying one will be created automatically

Many thanks, it is working now. The CMOS file’s datestamp shows it being written to.

Bonus points to Ben at ROOL for thinking about forward compatibility.

Indeed, and here was I thinking I was worth a bonus point for thinking it could have been a hazard that was breaking it.

Perhaps a small obey file on the desktop, or accessed via a create/save CMOS option from an existing item (right-click Apps or menu option in switcher?)

There exist already the Save and Load CMOS items in the Configure…/Configuration menu – do these no longer do what is required?

I might have assumed that the Save path for these would have been altered to fit in with the new system, though no system variables seem to include the string “CMOS” except in the load and run aliases.

There exist already the Save and Load CMOS items in the Configure…/Configuration menu – do these no longer do what is required?

Everything above would suggest that the option doesn’t create the required file to save the settings into, otherwise Sprows comment about needing to create it “…in the first place” would be incorrect.

Seconded. CMOS appears to be written to at shutdown. I really like this new addition even if just for robustness.

I really like this new addition

Yes, I like it too.