... And that's why I told Changbin Du a few times his patches needed more Ccs :/ FWIW: we just got last month a couple of patches that would allow initrd-less 9p root mount (using the nfs/cifs method described below with root=/dev/v9fs) Vivek Goyal wrote on Tue, Jun 08, 2021 at 11:35:24AM -0400: > NFS and CIFS use "root=/dev/nfs" and CIFS passes "root=/dev/cifs" and > actual root device details come from filesystem specific kernel > command line options. > > virtiofs does not seem to fit in any of the above categories. In fact > we have 9pfs which can be used to boot from but it also does not > have a proper syntax to specify rootfs and does not fit into any of > the existing syntax. They both expect a device "tag" to be passed > in a device to be mounted. And filesystem knows how to parse and > use "tag". > > So this patch proposes that we add a new prefix "fstag:" which specifies > that identifier which follows is filesystem specific tag and its not > a block device. Just pass this tag to filesystem and filesystem will > figure out how to mount it. ...However I agree something more generic would be welcome in my opinion, so I like this approach. I'll give it a try for 9p over the weekend and report back. -- Dominique
