On Fri, Sep 28, 2012 at 08:35:18AM +1000, NeilBrown wrote: > On Thu, 27 Sep 2012 10:41:03 -0400 Dave Reisner <dreisner@xxxxxxxxxxxxx> > wrote: > > > Key off of the existance of /etc/initrd-release as an indicator that > > mdadm is running in early userspace and set the __offroot flag. This > > allows the same udev-based assembly rules to be valid both off and on > > root and, moreover, will propagate to mdmon, should it need to be > > started. > > > > Signed-off-by: Dave Reisner <dreisner@xxxxxxxxxxxxx> > > --- > > mdadm.c | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/mdadm.c b/mdadm.c > > index 4c7c5ea..557e00b 100644 > > --- a/mdadm.c > > +++ b/mdadm.c > > @@ -1106,6 +1106,11 @@ int main(int argc, char *argv[]) > > exit(0); > > } > > > > + /* auto-detect being on an initramfs > > + * http://www.freedesktop.org/wiki/Software/systemd/InitrdInterface */ > > + if (access("/etc/initrd-release", F_OK) == 0) > > + __offroot = 1; > > + > > if (!mode && devs_found) { > > mode = MISC; > > devmode = 'Q'; > > What is the problem with adding the --offroot flag to every place in the > initrd that starts mdadm? The assumption is that mdadm is being called via udev for assembly, so we'd need to maintain a separate udev rule explicitly for the initramfs. I'd rather not do that. > (Actually I'm contemplating making --offroot the default so this might become > a non-issue) That'd be great! -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
