$ ls -ld /u/git
drwxrwxr-x  11 blair  wsrc  512 Jan  5 18:49 /u/git
$ ls -ld build
drwxr-xr-x  2 blair  users  8704 Jan  4 14:38 build
$ pwd
/home/blair
$ ls -ld .
drwxr-xr-x  22 blair  users  1536 Jan  6 16:26 .
$ mount -t union -o -b /u/git build
mount_union: /u/git on /home/blair/build: Operation not permitted

$ sysctl vfs.generic.usermount
vfs.generic.usermount = 1

Am I missing something here?  I thought that this was supposed to be allowed ...

  7713      1 mount_union __lstat30("/u", 0x7f7fffffdfa0) = 0
  7713      1 mount_union __lstat30("/u/git", 0x7f7fffffdfa0) = 0
  7713      1 mount_union __lstat30("/home", 0x7f7fffffdfa0) = 0
  7713      1 mount_union __lstat30("/home/blair", 0x7f7fffffdfa0) = 0
  7713      1 mount_union __lstat30("/home/blair/build", 0x7f7fffffdfa0) = 0
  7713      1 mount_union mount(0x40117f, 0x7f7fffffe470, 0, 0x7f7fffffec70) Err
#1 EPERM
  7713      1 mount_union write(0x2, 0x7f7fffffd3f0, 0xd) = 13

Why is this returning EPERM?



I am using LFS, but I thought since its a UFS filesystem that doesn't matter.

Regards,

--Blair

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