"operation not support" when execute #restorecon -R /
when i execute #restorecon -R / , all the output is "... operation not support". I had check the source code, and in linux/security/selinux/hooks.c :
sbsec = inode->i_sb->s_security;
if (!(sbsec->flags & SE_SBLABELSUPP))
it returned. The SE_SBLABELSUPP defined as 0x40, i want to know how can i do to make the filesystem to support the SecurityContext of selinux.