Hi Dave, It works when adding "-o rootmode=040000,user_id=0,group_id=0,dax".
Thanks, Jun On 2019/7/23 17:01, Dr. David Alan Gilbert wrote: > * piaojun ([email protected]) wrote: >> Hi Dave, >> >> Thanks for your quick reply, and still mount failed. But I can not get >> some useful message from dmesg. >> >> # mount -t virtio_fs myfs /mnt/virtiofs/ >> mount: wrong fs type, bad option, bad superblock on myfs, >> missing codepage or helper program, or other error >> >> In some cases useful info is found in syslog - try >> dmesg | tail or so. > > This is working for me - but with the latest -dev qemu/virtiofsd as > well; please make sure both are up to date: > > I used: > > mount -t virtio_fs myfs /sysroot -o rootmode=040000,user_id=0,group_id=0,dax > > Dave > >> On 2019/7/23 16:31, Dr. David Alan Gilbert wrote: >>> * piaojun ([email protected]) wrote: >>>> Hi, >>>> >>>> I got a problem when mounting virtiofs in kernel5.1 as below: >>>> >>>> fuse: loading out-of-tree module taints kernel. >>>> fuse: module verification failed: signature and/or required key missing - >>>> tainting kernel >>>> fuse init (API version 7.29) >>>> virtio_fs virtio1: Cache len: 0x80000000 @ 0x180000000 >>>> virtio1 initialised, 524288 pages in 12ms >>>> virtio_fs_find_instance: fs->tag myfs, tag /dev/null >>>> virtio-fs: tag </dev/null> not found >>>> Mounting FUSE Control File System... >>>> [/bin/bash]: [mount -t virtio_fs /dev/null /mnt/virtiofs/ -o tag=myfs] >>>> return code=[32], execute failed by [root(uid=0)] from [pts/0 (9.4.90.78)] >>>> >>>> And my kernel code is: >>>> https://github.com/rhvgoyal/linux/commits/virtio-fs-dev-5.1 >>>> >>>> I wonder if the mount command has been changed? >>> >>> There was a change that went in last night, I believe the new format is: >>> >>> mount -t virtio_fs myfs /mnt/virtiofs/ >>> >>> with the tagname going into the device position. >>> >>> Does that work? >>> >>> Dave >>> >>> >>>> Thanks, >>>> Jun >>>> >>>> _______________________________________________ >>>> Virtio-fs mailing list >>>> [email protected] >>>> https://www.redhat.com/mailman/listinfo/virtio-fs >>> -- >>> Dr. David Alan Gilbert / [email protected] / Manchester, UK >>> . >>> > -- > Dr. David Alan Gilbert / [email protected] / Manchester, UK > . >
