TSG-16020: 通过kexec进行快速内核切换跳过硬件检查加快升级流程

rootconf/sysroot-bin/onie-reboot-install

@@ -4,10 +4,36 @@
 #
 #  SPDX-License-Identifier:     GPL-2.0
 
-. /lib/onie/common-blkdev
 
-echo "Rebooting into ONIE (re)install mode..."
+# Check for --no-kexec argument
+if [ "$1" = "--no-kexec" ]
+then
+    . /lib/onie/common-blkdev
 
-set_onie_next_boot
-/mnt/onie-boot/onie/tools/bin/onie-boot-mode -q -o install
-reboot
+    echo "Rebooting into ONIE (re)install mode..."
+    set_onie_next_boot
+    /mnt/onie-boot/onie/tools/bin/onie-boot-mode -q -o install
+    echo "Rebooting with reboot command..."
+    reboot
+else
+    echo "Rebooting with kexec command..."
+
+    # Find vmlinuz and initrd files in /mnt/onie-boot
+    vmlinuz_file=$(find /mnt/onie-boot -name 'vmlinuz*' | head -n 1)
+    initrd_file=$(find /mnt/onie-boot -name 'initrd*' | head -n 1)
+
+    if [ -z "$vmlinuz_file" ] || [ -z "$initrd_file" ]
+    then
+        echo "Error: vmlinuz or initrd file not found. Falling back to reboot command."
+        reboot
+    else
+        # Get current kernel command line parameters
+        current_kernel_params=$(cat /proc/cmdline)
+
+        # Load the kernel and initrd using kexec
+        kexec -l "$vmlinuz_file" --initrd="$initrd_file" --append="fastreboot=1 $current_kernel_params"
+
+        # Execute kexec
+        kexec -e
+    fi
+fi