On Tuesday, 29 January 2019 09:20:46 GMT Mick wrote: Hello Mick,
--->8 > Do you have CONFIG_MD_RAID1 (or whatever it should be these days) built in > your kernel? Yes, I have, but something else was missing: CONFIG_DM_RAID=y. This is in the SCSI section, which I'd overlooked (I hadn't needed it before because the main storage is an NVMe drive). After setting that and rebooting, mdadm --create is working as expected. The wiki needs a small addition. I submitted a bug against it but was told not to use bugs for this purpose: I should use the wiki page's discussion page. I see more head-scratchery coming on... --->8 > You need to update your initramfs after you configure your array, so your > kernel knows what to assemble at boot time when it doesn't yet have access > to your mdadm.conf. I'd rather not have to create an initramfs if I can avoid it. Would it be sensible to start the raid volume by putting an mdadm --assemble command into, say, /etc/local.d/raid.start? The machine doesn't boot from /dev/md0. -- Regards, Peter.
