On Wed, Jul 13, 2022 at 02:18:53PM +0200, Otto Moerbeek wrote: > Hi, > > after a prompt from stsp@ and florian@, reporting that newfs_msdos > fails when given an $duid.i argument, I set down to see what could be > going on. My test using an USB stick failed to reprdouce the problem. > Then I started using a vnd, and that shows the issue (once in a > while). The feeling is that any disk devcied created on the fly might > show this issue.
Just as an additional detail: This also affects softraid volumes, which is how I ran into the issue. Installing a laptop with softraid full disk encryption on top of an EFI/GPT disk can result in a failure to format the MSDOS partition required for installing the EFI boot loader. When this happens the installer reports that it could not install a boot loader. A manual invocation of newfs_msdos with the correct /dev/sdxi device, and a subsequent invocation of installboot, can be used as a workaround.
