On 08/01/13 at 08:49am, Colin Guthrie wrote: > [Resend because I fail at reply-all] > > 'Twas brillig, and WANG Chao at 01/08/13 06:36 did gyre and gimble: > > On 07/30/13 at 04:40pm, Tom Gundersen wrote: > >> On Tue, Jul 30, 2013 at 4:13 PM, Harald Hoyer <har...@redhat.com> wrote: > >>> On 07/30/2013 03:46 PM, Zbigniew Jędrzejewski-Szmek wrote: > >>>> Maybe rootfsflags=nofail could do be used as this flag? > >>> > >>> rootfsflags=nofail sounds ok, if it is not used for booting the initial > >>> system. > >> > >> Yeah, you are right, this looks like it should just work. > >> > >> Though the behavior of initrd-parse-etc.service and > >> initrd-switch-root.service will be non-deterministic if this flag is > >> specified (unless I'm missing something). Maybe they should be > >> explicitly ordered After/Wants=sysroot.mount ? That may cause a long > >> timeout, but at least there will be no emergency mode. > > > > No, guys, nofail mount option will *only* work when device (or should I > > say filesystem) doesn't exist. > > > > From mount(8): > > [..] > > _nofail_ Do not report errors for this device if it does not exist. > > I'm not sure that description is 100% true under systemd. Looking at the > code, it seems to control the dependencies of the mount units (namely > changing a "Requires=" to the softer "Wants=")
rootflags=nofail only results in "mount -o nofail /dev/root /sysroot" OTOH, bool variable "nofail" from add_mount(.., bool nofail, ..) is used to changing "Requires=" to "Wants". > > It may be worth trying to push an updated description into the mount man > page to mention systemd's behaviour here? Nothing to do with systemd. systemd will just pass "nofail" and other mount options to mount. > > > So if filesystem is corrupted or something else fails the sysroot.mount, > > initrd-root-fs.target will never be reached. > > Is this actually true? Given the above comment? It could easily be that > the / mountpoint is handled more specially in systemd tho' (I've not > looked at the code that closely). Yes, that's true. sysroot.mount is automatically generated and mandatory be required by initrd-root-fs.target. Thanks WANG Chao _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
