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新建文件夹 (4)/distros/initramfstool/check.sh

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+#!/bin/sh
+#************************************************************************************
+# Copyright (c) 2020, longpanda <admin@ventoy.net>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+#************************************************************************************
+
+vtoy_false() {
+    [ -z "1" ]
+}
+
+vtoy_true() {
+    [ -n "1" ]
+}
+
+
+vtoy_check_initramfs_tool() {
+    if which update-initramfs >/dev/null 2>&1; then
+        
+        if ! [ -f /usr/share/initramfs-tools/hook-functions ]; then
+            vtoy_false; return
+        fi
+        
+        if ! [ -f /usr/share/initramfs-tools/hooks/dmsetup ]; then
+            vtoy_false; return
+        fi
+        
+        if ! [ -d /etc/initramfs-tools/scripts/local-top ]; then
+            vtoy_false; return
+        fi
+        
+        vtoy_true
+    else
+        vtoy_false
+    fi
+}