Jail question: packages with relative symlinks
galtsev at kicp.uchicago.edu
Tue Aug 25 16:51:46 UTC 2020
I've got question about jails, namely, what do you do if some package
you install in jail brings relative symlink(s)?
I install jails "by the book" and if relative symlinks are in
/usr/local, there is no problem with those, as in jail an equivalent of
and the depth is the same as on real system. However, /etc in jail is
and if package brings relative symlink to /etc, in jail it will point
nowhere. I just resolved this failure for package ca_root_nss in jail.
This package places in
cert.pem --> ../../usr/local/share/certs/ca-root-nss.crt
In jail, however it is situated in
so the above relative symlink points nowhere. I did a "trivial" thing,
just replaced relative symlink with absolute one:
cert.pem --> /usr/local/share/certs/ca-root-nss.crt
,and as this symlink is owned by the package ca_root_nss, I locked that
package, to prevent it from "automagically" replacing symlink with
relative if updated package is installed.
This is kind of crude solution, standing next to the "hack", so I do not
like what I did.
I wonder, how jail experts deal with relative symlinks when some package
brings it into place where filesystem depth in jail is different from
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
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