What is the kernel version and bcache-tools version? Normally default setup won’t trigger this situation, what is the set’s block size and the backing device block size on your setup? Coly Li > 2023年8月12日 04:34，Josias Wolhuter <josias@xxxxxxxxxxxx> 写道： > > ah. I see from dmesg > [ 8872.792317] bcache: bch_cached_dev_attach() Couldn't attach sdb1: block size less than set's block size > [ 8872.792323] bcache: __cached_dev_store() Can't attach b43b13cf-32b1-4e5a-af7d-27b6d246662d > : cache set not found > > but maybe warn in the manual/wiki > > > On 2023/08/11 21:19, Josias Wolhuter wrote: >> Hi >> Sorry to bug you (pun intended) >> I get this >> [root@ivan ~]# echo b43b13cf-32b1-4e5a-af7d-27b6d246662d >/sys/block/bcache0/bcache/attach >> -bash: echo: write error: No such file or directory >> but >> bcache-super-show /dev/nvme1n1p1 >> *** >> cset.uuid b43b13cf-32b1-4e5a-af7d-27b6d246662d >> bcache-super-show /dev/sdb1 >> *** >> dev.data.cache_state 0 [detached] >> cset.uuid 00000000-0000-0000-0000-000000000000 >> One unusual thing I did was to set the cache device block size differently/seperately from the backing device. but dont see mention of such a difference in the manual or online >> Cheers
