Messages in this thread | | | Date | Tue, 25 Sep 2007 07:34:36 +0930 | From | David Newall <> | Subject | Re: sys_chroot+sys_fchdir Fix |
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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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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