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2020-01-18Updated Building and running, first to be mdedvetch
2020-01-18mention that timer doesn't work in qemuWojtek Kosior
2020-01-17explain building and runningWojtek Kosior
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nted, other processes such as kmscon, udev and guix-daemon may open files from the store, preventing the underlying install support from being umounted. See: https://lists.gnu.org/archive/html/guix-devel/2018-12/msg00161.html. To avoid this situation, mount the store overlay inside a container, and run the installation from within that container. * gnu/build/shepherd.scm (fork+exec-command/container): New procedure. * gnu/services/base.scm (guix-shepherd-service): Support an optional PID argument passed to the "start" method. If that argument is passed, ensure that guix-daemon enters the given PID MNT namespace by using fork+exec-command/container procedure. * gnu/installer/final.scm (umount-cow-store): Remove it, (install-system): run the installation from within a container. * gnu/installer/newt/final.scm (run-install-shell): Remove the display hack. 2020-06-12shepherd: 'read-pid-file/container' terminates the whole process group.Ludovic Courtès This mirrors a change made in the Shepherd 0.8.0. Previously, upon startup failure, we could have left processes behind. * gnu/build/shepherd.scm (read-pid-file/container): Kill (- PID) instead of PID. 2020-06-12shepherd: Unblock signals in the child process.Ludovic Courtès Fixes <https://bugs.gnu.org/41791>. Reported by Tobias Geerinckx-Rice <me@tobias.gr>. This change mirrors changes made in the Shepherd 0.8.1, where signals are blocked in the shepherd process in support of 'signalfd'. The regression was introduced with the switch to 0.8.1 in 3f9c62d1a8b345909adaeb22f454ad22554c55a1: child processes would not receive SIGTERM upon 'herd stop SERVICE'. * gnu/build/shepherd.scm <top level>: Autoload (shepherd system). (make-forkexec-constructor/container): Call call to 'sigaction' and 'unblock-signals'. 2019-09-26shepherd: Ensure the log file has correct ownership.Ludovic Courtès * gnu/build/shepherd.scm (make-forkexec-constructor/container): Ensure LOG-FILE has correct ownership. 2019-09-26shepherd: 'make-forkexec-constructor/container' keeps the log file.Ludovic Courtès * gnu/build/shepherd.scm (make-forkexec-constructor/container): Don't call 'clean-up' on LOG-FILE. This mirrors Shepherd commit 6892f638c78a14fedd075f664432757bc015c140. 2019-09-12file-systems: Add /var/run/nscd to '%network-file-mappings'.Ludovic Courtès This allows containers created by "guix environment -CN" or by "guix system container -N" to talk to the host nscd. * gnu/system/file-systems.scm (%network-file-mappings): Add "/var/run/nscd". * gnu/build/shepherd.scm (default-mounts)[nscd-socket]: Remove. * gnu/system/linux-container.scm (container-script)[nscd-run-directory] [nscd-mapping, nscd-os, nscd-specs]: Remove. [script]: Filter out from SPECS bind-mounts where the device does not exist. * guix/scripts/environment.scm (launch-environment/container) [optional-mapping->fs]: New procedure. [mappings]: Remove %NETWORK-FILE-MAPPINGS. [file-systems]: Add %NETWORK-FILE-MAPPINGS here, filtered through 'optional-mapping->fs'.