dietpi-software: Baïkal: fix install on Bullseye

CHANGELOG.txt

@@ -28,6 +28,7 @@ Bug fixes:
 - DietPi-Software | Mono: Resolved an issue where the installation failed on Trixie systems due to conflicting dependencies of packages from the Mono repo. It is now installed from the Debian repository, which ships the latest version since Trixie.
 - DietPi-Software | Gogs: Resolved an issue where the installation failed on ARMv7 systems, since the latest release v0.13.2 does not provide binaries for this architecture anymore. We provide now own builds for those, like we do for ARMv6 and RISC-V already.
 - DietPi-Software | Domoticz: Resolved an issue where the installation failed, because of a changed download URL. Many thanks to @IgrekLg for reporting this issue: https://github.com/MichaIng/DietPi/issues/7375
+- DietPi-Software | Baïkal: Resolved an issue where the installation on Bullseye systems failed, because Baïkal 0.10.0 dropped support for PHP 7.4. Version 0.9.5 is now installed on Bullseye. Many thanks to @BeardedWidget for reporting this issue: https://github.com/MichaIng/DietPi/issues/7387
 
 As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: https://github.com/MichaIng/DietPi/pull/ADDME
 
@@ -1665,7 +1666,7 @@ Changes / Improvements / Optimisations:
 - DietPi-Software | phpBB: New installs will be v3.3.1 now, existing instances won't be touched as updates need to be done manually through the internal update mechanism, which includes the mandatory database migration. Additionally new installs will now be places at /var/www/phpbb, the old location /var/www/phpBB3 is still handled gracefully, if existing.
 - DietPi-Software | OctoPrint: The service runs now as user "octoprint", the Git branch directory has been moved to /opt/octoprint and /mnt/dietpi_userdata/octoprint is the run users home and hence config and data directory now. To apply these changes, OctoPrint is reinstalled with DietPi v6.33, which includes the Python 3 migration (see v6.32 changelog) on Buster and Bullseye systems. This implies that the CLI ("octoprint" command) needs to be executed as user "octoprint" to invoke the correct configuration. A bash shell alias solves this automatically for all users with sudo permissions, but if you use a custom shell, the CLI needs to be called like: "sudo -u octoprint octoprint <command>". Many thanks to @ModischFabrications for reporting an issue that is related to the fact that the service ran as root user before: https://github.com/MichaIng/DietPi/issues/3315
 - DietPi-Software | Tautulli: Finally, directories, user and service are renamed from "plexpy" to "tautulli". Additionally it runs with Python 3 now instead of Python 2. These changes are applied as well during DietPi update.
-- DietPi-Software | Baikal: Update (re)install procedure to cover the new config directory and use the pre-packed release archives instead of raw source and composer. Additionally webserver configs have been added to harden access permissions.
+- DietPi-Software | Baïkal: Update (re)install procedure to cover the new config directory and use the pre-packed release archives instead of raw source and composer. Additionally webserver configs have been added to harden access permissions.
 - DietPi-Software | Docker: On fresh installs or reinstalls, logs are now done with limited verbosity to systemd-journald (RAM), accessible via "journalctl -u docker -u containerd" to reduce disk writes. Docker can be reinstalled via "dietpi-software reinstall 162". Many thanks to @SaturnusDJ for doing this suggestion: https://github.com/MichaIng/DietPi/issues/2388
 - DietPi-Software | Mosquitto: The official APT repository is now used where possible, which currently excludes ARMv8/arm64 and Raspbian/Debian Bullseye. This change is applied via reinstall during DietPi update. Many thanks to @marcobrianza for doing this suggestion: https://github.com/MichaIng/DietPi/issues/3042
 - DietPi-Software | Cuberite: A wrong directory name based on a typo has been fixed. A reinstall updates Cuberite and moves its install directory to /mnt/dietpi_userdata/cuberite as intended. This is applied via DietPi update but a backup is created to cover issues due to potential structural changes, especially for older instances installed at /etc/cubrite.
@@ -2419,7 +2420,7 @@ Changes / Improvements / Optimisations:
 - DietPi-Automation | Added settings to dietpi.txt to toggle IPv6 and IPv4 preference on first boot.
 - DietPi-Update | You now have the option to view the changelog, prior to updating: https://github.com/MichaIng/DietPi/issues/2081
 - DietPi-Software | SABnzbd: Updated to 2.3.5 for new installations only. Now runs under its own limited user account, and, umask of 0775 for downloads: https://github.com/MichaIng/DietPi/issues/2172
-- DietPi-Software | Card/CalDAV request redirection was added to new Baikal, ownCloud and Nextcloud installs. Now only the servers domain/IP need to be entered on Card/CalDAV clients, without any further path to the DAV endpoints: https://github.com/MichaIng/DietPi/issues/2057
+- DietPi-Software | Card/CalDAV request redirection was added to new Baïkal, ownCloud and Nextcloud installs. Now only the servers domain/IP need to be entered on Card/CalDAV clients, without any further path to the DAV endpoints: https://github.com/MichaIng/DietPi/issues/2057
 - DietPi-Software | Plex Media Server and Transmission services run now as group "dietpi", to allow cross access with download managers and media software: https://github.com/MichaIng/DietPi/issues/2067#issuecomment-427579779
 - DietPi-Set_Hardware | Odroid C2: When selecting USB DAC, smp affinity will be applied for USB IRQ's to improve stability: https://github.com/MichaIng/DietPi/issues/2101
 - DietPi-Drive_Manager | Formatting: Now has the option to format the whole drive, or partition only, for drives with existing partitions.

dietpi/dietpi-software

@@ -8094,8 +8094,14 @@ _EOF_
 			# APT deps: https://github.com/sabre-io/Baikal/wiki/Baïkal-dependencies
 			aDEPS=("php$PHP_VERSION-xml" "php$PHP_VERSION-mbstring" "php$PHP_VERSION-mysql")
 
-			local fallback_url='https://github.com/sabre-io/Baikal/releases/download/0.10.1/baikal-0.10.1.zip'
-			Download_Install "$(curl -sSfL 'https://api.github.com/repos/sabre-io/Baikal/releases/latest' | mawk -F\" '/^ *"browser_download_url": ".*\/baikal-[^"\/]*\.zip"$/{print $4}')"
+			# Bullseye: v10 dropped support for PHP 7.4: https://github.com/MichaIng/DietPi/issues/7387
+			if (( $G_DISTRO < 7 ))
+			then
+				Download_Install 'https://github.com/sabre-io/Baikal/releases/download/0.9.5/baikal-0.9.5.zip'
+			else
+				local fallback_url='https://github.com/sabre-io/Baikal/releases/download/0.10.1/baikal-0.10.1.zip'
+				Download_Install "$(curl -sSfL 'https://api.github.com/repos/sabre-io/Baikal/releases/latest' | mawk -F\" '/^ *"browser_download_url": ".*\/baikal-[^"\/]*\.zip"$/{print $4}')"
+			fi
 
 			# Reinstall: https://sabre.io/baikal/upgrade/
 			if [[ -d '/var/www/baikal' ]]