How to remove all block device files that no longer have corresponding physical devices attached?

Question

I have a /dev/dm-# block device file and a link to it from /dev/mapper/somename even after detaching the physical device.

Is it safe to just use rm on both? Is there a way to rescan physical devices and remove unneeded links in /dev/mapper? And, possibly, reset alphabetic counter for new block devices (as in /dev/sdc)?

partprobe isn't helping, and I don't see anything related in blockdev manual.

score 1 · Answer 1 · answered Sep 02 '15 at 23:00

1

sudo cryptsetup luksClose somename

In my case it was the result of using cryptsetup luksOpen and detaching the device without closing it.

answered Sep 02 '15 at 23:00

int_ua

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How to remove all block device files that no longer have corresponding physical devices attached?

1 Answers1