IS200ISBBG2A自动化模块备件
非活动分区中的数据不可访问。在创建分区方案之后，可以格式化分区以包含所需的文件系统。如前所述，典型的系统包括VMIVME-7750，其驻留的闪存磁盘配置为次要IDE设备、连接到主要IDE接口的硬盘驱动器和连接到软盘接口的软盘驱动器。使用此配置，可能需要在任一IDE设备上具有逻辑设备，配置为可引导设备，允许通过高级CMOS设置屏幕选择第一个引导设备。使用此功能，用户可以使系统配置有多个操作系统，通过将IDE逻辑设备指定为引导设备，可以选择这些操作系统。DOS实用程序FDISK通常用于配置硬盘驱动器上的分区结构。下一页的注释与使用FDISK进行分区有关。注意：删除分区将擦除以前存储在该分区中的所有数据。闪存磁盘将配置为出厂时的单个分区设备。下面的示例序列说明了创建两个8MB分区的一种经过验证的方法，其中一个作为活动主分区。请注意退出FDISK的说明。这已被证明是成功分区工作的重要一步。1.通电VMIVME-7750并进入CMOS设置。2.将IDE HDD Master设置为“未安装”。69闪存磁盘3 3。将Flash Disk Master设置为“AUTO”（自动）。4.将引导设备设置为软盘。5.从软盘启动DOS，并验证系统配置屏幕是否仅显示闪存磁盘。6.运行FDISK。7.删除所有当前分区（当前存储在分区中的任何数据都将丢失）。8.退出FDISK（这将导致重新启动），然后再次运行FDISK。9.创建一个8M字节的主分区。10.创建一个8M字节的扩展分区。11.为8M字节扩展分区设置逻辑设备。12.将主分区设置为活动分区。13.退出FDISK。如果闪存磁盘上安装了修改主引导记录（MBR）的操作系统，则需要执行以下步骤来为DOS重写MBR。14.运行FDISK/MBR。15.运行FORMAT C:（如果您想将闪存磁盘作为可引导DOS设备，请使用扩展名/s选项）。16.格式D：（仅当创建了两个分区时才需要）。17.重置CPU并进入CMOS设置。18.将主控制器设置为“自动”。19.将引导设备设置为所需的引导源。简单系统的驱动器号分配如第67页图3-1所示。对于这些多分区配置，了解操作系统分配驱动器号的顺序是必要的。操作系统将驱动器号C分配给第一个硬盘（引导设备）上的活动主分区。驱动器D分配给下一个硬盘上第一个识别的主分区。操作系统将继续以两个驱动器之间交替的方式向主分区分配驱动器号。下一个逻辑分区将从第一个硬盘驱动器开始分配驱动器号，依次为每个逻辑设备刻字，直到所有逻辑分区都分配了驱动器号。
Data in the non-active partitions are not accessible. Following the creation of the partitioning scheme, the partitions can be formatted to contain the desired file system. As discussed earlier, a typical system consists of the VMIVME-7750 with its resident Flash Disk configured as the Secondary IDE device, a hard drive attached to the Primary IDE interface, and a floppy drive attached to the floppy interface. Using this configuration, it may be desirable to have a logical device on either IDE device, configured as a bootable device, allowing the selection of the first boot device by way of the Advanced CMOS Setup screen. Using this capability, a user could have a system configured with multiple operating systems that would be selectable by assigning the IDE logical device as the boot device. The DOS utility FDISK is commonly used to configure the partition structure on a hard drive. Comments on the following page pertain to partitioning efforts using FDISK. CAUTION: Deleting a partition will erase all the data previously stored in that partition. The Flash Disk will be configured as a single partition device as delivered from the factory. The following sample sequence illustrates a proven method for creating two 8 Mbyte partitions, with one as an active primary partition. Take note of the instructions to exit FDISK. This has been shown to be an important step in a successful partitioning effort. 1. Power up the VMIVME-7750 and enter the CMOS set-up. 2. Set IDE HDD Master to “Not Installed”. 69 Flash Disk 3 3. Set Flash Disk Master to “AUTO”. 4. Set boot device to floppy. 5. Boot DOS from the floppy, and verify that the System Configuration Screen shows only the Flash Disk. 6. Run FDISK. 7. Delete all current partitions (any data currently stored in the partitions will be lost). 8. Exit FDISK (this will cause a reboot), then run FDISK again. 9. Create an 8 Mbyte primary partition. 10. Create an 8 Mbyte extended partition. 11. Set-up a logical device for the 8 Mbyte extended partition. 12. Set the Primary partition as an active partition. 13. Exit FDISK. If an operating system has been installed on the Flash Disk that modifies the Master Boot Record (MBR), the following steps are required to rewrite the MBR for DOS. 14. Run FDISK/MBR. 15. Run FORMAT C: (use the extension /s option if you want the Flash Disk as a bootable DOS device). 16. Format D: (this is only required if two partitions were created). 17. Reset the CPU and enter the CMOS set-up. 18. Set Primary Master to “AUTO”. 19. Set boot device to desired boot source. Drive letter assignments for a simple system are illustrated in Figure 3-1 on page 67. Understanding the order the operating system assigns drive letters is necessary for these multiple partition configurations. The operating system assigns drive letter C to the active primary partition on the first hard disk (the boot device). Drive D is assigned to the first recognized primary partition on the next hard disk. The operating system will continue to assign drive letters to the primary partitions in an alternating fashion between the two drives. The next logical partitions will be assigned drive letters starting on the first hard drive, lettering each logical device sequentially, until all are assigned a drive letter.
