installation/env.sh: Use MCA package for Debian 11. (temporary workaround)

installation/env.sh

@@ -10,6 +10,7 @@ MCA_PACKAGE_NAME=dep--mca--static
 FLUENTBIT_PACKAGE_NAME=dep--fluent-bit
 MCA_VERSION=1-1
 FLUENTBIT_VERSION=1-1
+TARGET_DISTRIBUTION=Debian_10
 ARCH=amd64
 PACKAGE_EXTENSION=.deb
 
@@ -24,9 +25,12 @@ APT_SPECIFIC_PACKAGES="dracut-core dracut dracut-network"
 
 MCA_PACKAGE_FILE=${MCA_NAME_AND_VERSION}_${ARCH}${PACKAGE_EXTENSION}
 FLUENTBIT_PACKAGE_FILE=${FLUENTBIT_NAME_AND_VERSION}_${ARCH}${PACKAGE_EXTENSION}
-URL_PATTERN="https://download.opensuse.org/repositories/home:/fg.nxd/Debian_11/"
-MCA_PACKAGE_URL=${URL_PATTERN}/${ARCH}/${MCA_PACKAGE_FILE}
-FLUENTBIT_PACKAGE_URL=${URL_PATTERN}/${ARCH}/${FLUENTBIT_PACKAGE_FILE}
+URL_PATTERN="https://download.opensuse.org/repositories/home:/fg.nxd/${TARGET_DISTRIBUTION}/${ARCH}/"
+# at the moment, the MCA package is not compiling for Debian 10 (the fluent-bit plugin does not compile because of its Go dependency)
+# so we try with the Debian 11 version
+MCA_PACKAGE_URL="https://download.opensuse.org/repositories/home:/fg.nxd/Debian_11/${ARCH}/${MCA_PACKAGE_FILE}"
+#MCA_PACKAGE_URL=${URL_PATTERN}/${MCA_PACKAGE_FILE}
+FLUENTBIT_PACKAGE_URL=${URL_PATTERN}/${FLUENTBIT_PACKAGE_FILE}
 
 # used mainly in installation/install.sh and installation/uninstall.sh
 SOURCE_EFI_DIR=/boot/efi/EFI/