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authorAttila Lendvai <attila@lendvai.name>2021-12-02 20:18:56 +0100
committerMathieu Othacehe <othacehe@gnu.org>2021-12-03 14:18:32 +0100
commitb42bfbdfe55eea56234a91c33ef12b9fe198766d (patch)
treeae145a5b85512783bc075157abf47cb641165349 /gnu
parent5a18cf360454bef20f00facb51b45daabe31dad2 (diff)
downloadguix-b42bfbdfe55eea56234a91c33ef12b9fe198766d.tar.gz
guix system vm: Add --no-graphic CLI argument.
It configures QEMU to use the tty it was started in for IO (as opposed to
opening a separate graphical window).  This enables copy-pasting and
scrollback.  Exit QEMU with C-a x.

* gnu/system/vm.scm (system-qemu-image/shared-store-script): Also add the
'-nographic' QEMU argument when called with #:graphic? #false.
* guix/scripts/system.scm (system-derivation-for-action): Propagate
the #:graphic? keyword arg.
(perform-action): Add and propagate the #:graphic? keyword arg.
(show-help): Add --no-graphic CLI arg.
(%options): Process the new --no-graphic CLI arg.
(process-action): Feed in the CLI arg through the #:graphic? keyword arg.
* doc/guix.texi (Invoking guix system): Add example to combine guix system and
invoking the vm start script into one command.  Split the description of the
various options into separate paragraphs.  Add a paragraph to describe
--no-graphic.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
Diffstat (limited to 'gnu')
-rw-r--r--gnu/system/vm.scm2
1 files changed, 2 insertions, 0 deletions
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 1e2d8b47c2..0a95302584 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -754,6 +754,8 @@ it is mostly useful when FULL-BOOT?  is true."
     (define qemu-exec
       #~(list #+(file-append qemu "/bin/"
                              (qemu-command (or target system)))
+              ;; Tells qemu to use the terminal it was started in for IO.
+              #$@(if graphic? '() #~("-nographic"))
               #$@(if full-boot?
                      #~()
                      #~("-kernel" #$(operating-system-kernel-file os)