On Thu, Jul 03, 2014 at 02:23:57PM +0200, Tom Gundersen wrote: > On Thu, Jul 3, 2014 at 2:14 PM, Zbigniew Jędrzejewski-Szmek > <zbys...@in.waw.pl> wrote: > > On Thu, Jul 03, 2014 at 11:49:20AM +0200, Thomas Bächler wrote: > >> Am 02.07.2014 14:29, schrieb Daniel Drake: > >> > If I'm reading things right, actually the default behaviour is (when > >> > no hints are supplied in kernel cmdline) : > >> > 1. systemd runs fsck on root from initramfs > >> > 2. systemd mounts root fs ro > >> > 3. switch-root onto real system > >> > 4. systemd-fsck-root runs > >> > 5. systemd-remount-fs remounts / as rw > >> > > >> > Also just noticed another interesting thing - > >> > systemd-fsck-root.service is only loaded dynamically, when /etc/fstab > >> > has a non-zero passno for /. So maybe the idea is that anyone running > >> > a regular and modern dracut/systemd setup sets passno=0 for / in > >> > fstab, with the knowledge that fsck of / is done by the initramfs. > >> > >> Tom and me are thought this through a couple of months ago when I > >> started looking into using Arch's mkinitcpio with systemd. We submitted > >> a few changes to fsck handling back then. > >> > >> This is the setup we want to support (this is now the default in a new > >> Arch installation): > >> 1) fsck in initramfs > >> 2) initramfs mounts rw > >> 3) no re-fsck in the system > > This is what we want. > > > > We also want this to work: > > 1) fsck in the initramfs > > 2) initramfs mounts ro > > 3) no re-fsck or remount in the system > > Hm, the only way this would get re-fscked in the system is if it is > explicitly configured to be in /etc/fstab... Shouldn't we just give > people what they ask for? Otherwise passno= for the rootfs would have > no effect at all in this setup (the rootfs is fscked unconditionally > in the initrd regardless of what /etc/fstab says (obviously)). Well, passno=1 means it should be checked... once. It would be rather lame to require the user to set it to 0 because the system forgets whether it has already checked the fs or not.
Zbyszek _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
