doc: Explain how to check whether security updates are used.

Based on
<https://lists.gnu.org/archive/html/guix-devel/2016-03/msg00009.html>.

* doc/guix.texi (Security Updates): Explain how to check whether we're
using a grafted version.
This commit is contained in:
Ludovic Courtès 2016-03-05 22:34:46 +01:00
parent dd78e90a4d
commit 59a4dd509b

View file

@ -10269,6 +10269,47 @@ Other restrictions may apply: for instance, when adding a graft to a
package providing a shared library, the original shared library and its
replacement must have the same @code{SONAME} and be binary-compatible.
The @option{--no-grafts} command-line option allows you to forcefully
avoid grafting (@pxref{Common Build Options, @option{--no-grafts}}).
Thus, the command:
@example
guix build bash --no-grafts
@end example
@noindent
returns the store file name of the original Bash, whereas:
@example
guix build bash
@end example
@noindent
returns the store file name of the ``fixed'', replacement Bash. This
allows you to distinguish between the two variants of Bash.
To verify which Bash your whole profile refers to, you can run
(@pxref{Invoking guix gc}):
@example
guix gc -R `readlink -f ~/.guix-profile` | grep bash
@end example
@noindent
@dots{} and compare the store file names that you get with those above.
Likewise for a complete GuixSD system generation:
@example
guix gc -R `guix system build my-config.scm` | grep bash
@end example
Lastly, to check which Bash running processes are using, you can use the
@command{lsof} command:
@example
lsof | grep /gnu/store/.*bash
@end example
@node Package Modules
@section Package Modules