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authorMaxim Cournoyer <maxim.cournoyer@gmail.com>2022-12-14 10:31:52 -0500
committerMaxim Cournoyer <maxim.cournoyer@gmail.com>2023-02-17 02:55:43 +0100
commit23d56ba150ddeaa58e96b3ecf9df251fbd05ed00 (patch)
treef5156c32c74ef5ac3292039c98772b4ac6949a7f /etc/guix-install.sh
parent28bd26b6b8245c71bc474237b24498caa832cc25 (diff)
guix-install.sh: Add GUIX_ALLOW_OVERWRITE environment variable.
The need for this use case appeared when attempting to install Guix on a truly minimal image made with Buildroot, which lacked enough GNU components that I had to extract a guix pack to /gnu before attempting installation, which would then refuse to proceed because of the existing /gnu. * etc/guix-install.sh: Document environment variables. (sys_create_store) [GUIX_ALLOW_OVERWRITE]: Skip pre-existing installation checks and output a warning. Extract the tarball directly to /.
Diffstat (limited to 'etc/guix-install.sh')
-rwxr-xr-xetc/guix-install.sh25
1 files changed, 20 insertions, 5 deletions
diff --git a/etc/guix-install.sh b/etc/guix-install.sh
index 3ce9affc06..ea10f35250 100755
--- a/etc/guix-install.sh
+++ b/etc/guix-install.sh
@@ -29,6 +29,22 @@
# We require Bash but for portability we'd rather not use /bin/bash or
# /usr/bin/env in the shebang, hence this hack.
+
+# Environment variables
+#
+# GUIX_BINARY_FILE_NAME
+#
+# Can be used to override the automatic download mechanism and point
+# to a local Guix binary archive filename like
+# "/tmp/guix-binary-1.4.0rc2.armhf-linux.tar.xz"
+#
+# GUIX_ALLOW_OVERWRITE
+#
+# Instead of aborting to avoid overwriting a previous installations,
+# allow copying over /var/guix or /gnu. This can be useful when the
+# installation required the user to extract Guix packs under /gnu to
+# satisfy its dependencies.
+
if [ "x$BASH_VERSION" = "x" ]
then
exec bash "$0" "$@"
@@ -336,16 +352,15 @@ sys_create_store()
_debug "--- [ ${FUNCNAME[0]} ] ---"
- if [[ -e "/var/guix" || -e "/gnu" ]]; then
+ if [[ -z $GUIX_ALLOW_OVERWRITE && (-e /var/guix || -e /gnu) ]]; then
die "A previous Guix installation was found. Refusing to overwrite."
+ else
+ _msg "${WAR}Overwriting existing installation!"
fi
cd "$tmp_path"
- tar --extract --file "$pkg" && _msg "${PAS}unpacked archive"
-
_msg "${INF}Installing /var/guix and /gnu..."
- mv "${tmp_path}/var/guix" /var/
- mv "${tmp_path}/gnu" /
+ tar --extract --file "$pkg" -C /
_msg "${INF}Linking the root user's profile"
mkdir -p ~root/.config/guix