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    SubjectRe: sys_chroot+sys_fchdir Fix
    Quoting David Newall (david@davidnewall.com):
    > Serge E. Hallyn wrote:
    >> No reason for any new parameters to pivot_root. Just clone your mounts
    >> namespace first.
    >>
    >> unshare(CLONE_NEWNS);
    >> chdir(new_dir);
    >> pivot_root(new_dir, oldroot);
    >>
    >> Since pivot_root actually fiddles with the vfsmnts, this is really the
    >> only way to go about having it "work with just one process".
    >
    > I think the point is that, whereas we'd like to be able to pivot the root
    > for a single process, in practice this causes startup issues to which the
    > easy solution is to pivot the whole system. At least that's my reading of
    > the man page.
    >
    > It might be tidy if pivot_root could be used (instead of a hack based on a
    > chroot bug), but it'd still be unportable.

    It can.

    Please re-read my previous msg.

    -serge
    -
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