Alexander Leidinger wrote on 2016/12/17 19:59:
Quoting SK <fbsta...@cps-intl.org> (from Fri, 16 Dec 2016 14:02:20 +0000):
If I understand you correctly, what you are suggesting is, the dataset
used by the jail itself for its root/base cannot be "worked on" from
within the jail, but if I define a different dataset (under the same
branch below the jail dataset), and attribute it to the jail, then I
can manipulate that "other" dataset. Could you please confirm if I
understood it correctly?
Correct.
You need the data in the root of the jail to boot, if you then attribute
this dataset to the jail, it will vanish until "zfs mount -a" is run (rc
script inside the jail). As it will vanish during the boot of the jail
(if added automatically), the rc script to mount all datasets can not be
found.
[...]
I think what you are trying to tell here is, unless and until that
"vanished" dataset is put to use (mounted) from inside the jail, it
will remain vanished/unusable from the host itself; however, once that
dataset is put to use, the host system should be able to "see" and
maybe even work on that dataset. Could you please confirm if I
understood you correctly?
Correct.
A sub-dataset which is not needed to boot, or a dataset not within the
subtree of the jail (and not needed to boot) can be used.
Thank you for this information! If it is somewhere in the docs it is
well hidden to me :)
Miroslav Lachman
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