Hello, everyone!
After UItraPath is installed and the host is restarted, the system fails to load the UItraPath startup item. Do you know how to solve the issue? Don't worry, the post will share with you!
Symptom
After the UltraPath has been installed, the operator checks the system file /boot/grub/menu.lst and the value indicates that the UltraPath startup item has been set to be the default system startup item. However, when the host is restarted, the system fails to load the default startup item (for booting).

Fault Diagnosis
When multiple systems are installed on the same host, the system reads the /boot/grub/menu.lst file of the most recently installed system during the system startup. If the system running the UltraPath is not the most recently installed system, the system still cannot obtain the UltraPath startup item during the system startup although the /boot/grub/menu.lst file of this system has added the UltraPath startup item. In this case, the UltraPath cannot be started.
Solution
1. In the current system (for example, the system that is installed in the /dev/sda1 partition), run the fdisk -l command to view the systems that have been installed on the host. In the following figure, three operating systems have been installed.

2. Save the UltraPath settings in the /boot/grub/menu.lst file of the current system.

3. Add the UltraPath configurations of the current system into the /boot/grub/menu.lst file of the other two systems (that are installed in the /dev/sda3 and /dev/sda4 partitions respectively). Then change the default value of the file. Assume that the operating system is installed in the /dev/sda3 partition (for the operating system that is installed in the /dev/sda4 partition, the procedure is the same). Run the mount /dev/sda3 /mnt command to mount the system to the mnt directory. Go to the directory and open the /mnt/boot/grub/menu.lst file by running the vi command. Append the UltraPath settings to the end of this file.

4. After the configurations are successfully added, change the default value of the file so that the UltraPath startup item becomes the default startup item of the system. The following figure shows the default value of the /mnt/boot/grub/menu.lst file before it is changed.

The following figure shows the default value of the /mnt/boot/grub/menu.lst file after the UltraPath startup item has been set to be the default startup item of the system.

Note: When changing the default value of the /mnt/boot/grub/menu.lst file, comment the original default value and then start a new line to change the default value so that you can restore the default value to the original one. Run the umount /mnt command to uninstall the /dev/sda3 partition.
Note: After you have uninstalled the UltraPath, you need to delete the UltraPath startup items in the /boot/grub/menu.lst file in other two operating systems and then restore the default values to the original ones.
5. Restart the system.
This is my solution, how about yours? Go ahead and share it with us!