[systemd-devel] Second (erroneous) check of rootfs?

Chris Murphy lists at colorremedies.com
Sun Jan 11 03:15:41 PST 2015

On Sun, Jan 11, 2015 at 4:11 AM, Andrei Borzenkov <arvidjaar at gmail.com> wrote:
> В Sun, 11 Jan 2015 13:43:34 +0300
> Nikolai Zhubr <n-a-zhubr at yandex.ru> пишет:
>> >
>> > Uh. Why not simply mount rootfs rw in initrd then?
>> I'm not against generally. But it'd mean that this first mount is
>> actually a real mount, the fs will start up in full. Then I'd suppose it
>> is definitely a must to supply all necessary mount options (from fstab)
>> at this stage already. I don't easily see how to do this currently, at
>> least on my opensuse system.
> By adding all needed options to rootflags="..." (modify
> in /etc/default/grub; you can use yast for it).
> Otherwise it is functional gap between non-systemd and systemd
> enabled dracut. Without systemd dracut will actually mount root
> read-only, then fetch mount options from real root /etc/fstab and then
> remount real root read-write using correct options. This all got lost
> when converting to systemd.

Not true on Fedora even still with 21. The kernel parameter ro is
present, so dracut mounts root read-only, then reads fstab, then does
a remount. Fedora is a systemd OS of course.

Chris Murphy

More information about the systemd-devel mailing list