initial commit

IMG/cpio/ventoy/hook/alpine/udev_disk_hook.sh

@@ -0,0 +1,71 @@
+#!/ventoy/busybox/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/>.
+# 
+#************************************************************************************
+
+. /ventoy/hook/ventoy-hook-lib.sh
+
+if [ "$SUBSYSTEM" != "block" ] || [ "$DEVTYPE" != "partition" ]; then    
+    exit 0
+fi
+
+if [ -b /dev/${MDEV:0:-1} ]; then
+    vtlog "/dev/${MDEV:0:-1} exist"
+else
+    $SLEEP 2
+fi
+
+if is_ventoy_hook_finished || not_ventoy_disk "${MDEV:0:-1}"; then
+    exit 0
+fi
+
+PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
+
+#
+# longpanda:
+# Alpine initramfs doesn't contain dm-mod or fuse module, 
+# and even the worse, the libpthread.so is not included too.
+# So here we directly dump the modloop squashfs file from disk to rootfs.
+# Fortunately, this file is not too big (< 100MB in alpine 3.11.3).
+# After that:
+#   1. mount the squashfs file
+#   2. find the dm-mod module from the mountpoint and insmod
+#   3. unmount and delete the squashfs file
+#
+
+vtoydm -i -f $VTOY_PATH/ventoy_image_map -d /dev/${MDEV:0:-1} > $VTOY_PATH/iso_file_list
+
+vtLine=$(grep '[-][-] modloop-lts ' $VTOY_PATH/iso_file_list)
+sector=$(echo $vtLine | awk '{print $(NF-1)}')
+length=$(echo $vtLine | awk '{print $NF}')
+
+vtoydm -e -f $VTOY_PATH/ventoy_image_map -d /dev/${MDEV:0:-1} -s $sector -l $length -o /vt_modloop
+
+mkdir -p $VTOY_PATH/mnt
+mount /vt_modloop $VTOY_PATH/mnt
+
+KoModPath=$(find $VTOY_PATH/mnt/ -name 'dm-mod.ko*')
+vtlog "insmod $KoModPath"
+insmod $KoModPath
+
+umount $VTOY_PATH/mnt
+rm -f /vt_modloop
+
+ventoy_udev_disk_common_hook "$MDEV" "noreplace"
+
+# OK finish
+set_ventoy_hook_finish

IMG/cpio/ventoy/hook/alpine/ventoy-hook.sh

@@ -0,0 +1,24 @@
+#!/ventoy/busybox/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/>.
+# 
+#************************************************************************************
+
+. $VTOY_PATH/hook/ventoy-os-lib.sh
+
+echo "-[-a-z0-9]*2 root:root 0666 @$BUSYBOX_PATH/sh $VTOY_PATH/hook/alpine/udev_disk_hook.sh" >> /mdev.conf
+$CAT /etc/mdev.conf >> /mdev.conf
+$BUSYBOX_PATH/mv /mdev.conf /etc/mdev.conf