Checking Hot Patches Before an Upgrade

Method 1: Using the ISM to Install Hot Patches

This method applies to installation of hot patches of all versions.

1. Log in to the CLI as user admin. Run showupgradepkginfo -t 1 to confirm system version.  
   
   
2. Refer to Table 1 and download the hot patch and patch installation guide of the required version.

   Table 1 Downloading the hot patch

   Version	Patch	Download Link
   V100R001C00SPC400	V100R001C00SPH402	Link

3. Run showupgradepkginfo -t 3 to check whether the system has a hot patch.  
   
   
4. On the Patch Management page, click Rollback to uninstall all patches in the system. Table 2 shows the patches to be uninstalled. Patches not listed cannot be uninstalled.

   Since the implementation principles of the new and existing patches are different, uninstall the existing patches before installing new ones. The new patches can solve all problems of the system.

   Table 2 Uninstalling a patch

   Version	New Patch	Patch to Be Uninstalled
   V100R001C00SPC400	V100R001C00SPH402	V100R001C00SPH401

   
   
   

5. On the Patch Management page, click Upload. After the upload is successful, click Activate to activate the patch package. The patch package is installed successfully.