[arch-general] fstab and root filesystem

[Temlin Olivér]

Hello!

Sure, I've seen some distributions do this, go for it!
You can supply everything important in fstab through the kernel command
line: device => root; type => rootfstype; options => rootflags
Mount point, dump and fsck cannot be supplied, but even fsck is provided by
systemd-fsck-root.service.
Also mind that you can supply rw or ro for the rootfs to be mounted as
such, and that ext2/3/4 can store flags within itself, see -o under
tune2fs(8).

--
Oliver Temlin


On Fri, Aug 29, 2014 at 2:04 PM, Kalrish Bäakjen
<kalrish.antrax at gmail.com> wrote:
>
> Hello,
> I have been playing with the initramfs, and I noticed that the root
> filesystem is mounted in read-write mode in early init. Since, by the time
> /etc/fstab is available, the filesystem on which it resides (presumably,
> the root filesystem) is already mounted, and mounting it is anyway early
> init's task, not real init's (because the real init cannot be found
without
> the initramfs), there seems to be no point in keeping it listed. I haven't
> found anything about this, but commenting out the pertinent line hasn't
> broken anything. Is it fine, or are there any reasons for it to be listed
> in fstab?
>
> Regards,
> Kalrish