It appears that some people have noticed the same issue and reported it in (LP: 1263181). There are several places in block_meta where curtin makes incorrect assumptions about the layout of /sys. I believe that in addition to clear_holders not being able to operate on ccis devices, bcache configuration will not work on them.
I am working on a fix right now, as I don't believe the fix I had been working on earlier is sufficient.
It appears that some people have noticed the same issue and reported it in (LP: 1263181). There are several places in block_meta where curtin makes incorrect assumptions about the layout of /sys. I believe that in addition to clear_holders not being able to operate on ccis devices, bcache configuration will not work on them.
I am working on a fix right now, as I don't believe the fix I had been working on earlier is sufficient.