全新安装 OS 后 stmsboot 无法映射根设备 (6931924)

在带有 Sun Storage 6Gb SAS REM HBA (SGX-SAS6-REM-Z) 的全新安装系统上手动启用 MPXIO 将导致出现错误消息。手动运行 stmsboot -e 来启用 MPxIO 时，在引导过程中会显示以下无害消息：

Error: Your root device is not mapped.

要防止出现该消息或消除该消息，请执行以下解决方法。

解决方法

1. 以超级用户身份登录显示该消息的系统。

2. 运行 stmsboot -e 以启用多路径功能。例如：

   host-1-root@[/]>stmsboot -e
   
   WARNING: stmsboot operates on each supported multipath-capable controller
            detected in a host. In your system, these controllers are
   
   /pci@1f,700000/pci@0/pci@2/pci@0/pci@8/LSILogic,sas@1
   /pci@1f,700000/pci@0/pci@9/LSI,sas@0/iport@f0
   
   If you do NOT wish to operate on these controllers, please quit stmsboot
   and re-invoke with -D { fp | mpt | mpt_sas} to specify which controllers 
   you wish to modify your multipathing configuration for.
   
   Do you wish to continue? [y/n] (default: y) y

3. 重新引导系统。例如：

   host-1-root@[/]>reboot

4. 以超级用户身份登录并再次运行 stmsboot -e。出现 Do you wish to continue 提示时，回答 y。例如：

   host-1-root@[/]>stmsboot -e
   
   WARNING: stmsboot operates on each supported multipath-capable controller
            detected in a host. In your system, these controllers are
   
   /pci@1f,700000/pci@0/pci@2/pci@0/pci@8/LSILogic,sas@1
   /pci@1f,700000/pci@0/pci@9/LSI,sas@0/iport@f0
   
   If you do NOT wish to operate on these controllers, please quit stmsboot
   and re-invoke with -D { fp | mpt | mpt_sas} to specify which controllers 
   you wish to modify your multipathing configuration for.
   
   Do you wish to continue? [y/n] (default: y) y
   STMS is already enabled. No changes or reboots needed

   系统会通知您 STMS 已启用，无需重新引导。仍然需要重新引导来确保清除错误消息。

5. 重新引导系统。例如：

   host-1-root@[/]>reboot