| 摘要 |
[SUBJECTS] To suppress decrease in boot speed and slowness in operation of a terminal even when the terminal is booted the second or subsequent time in a private mode in which the terminal directly writes to a virtual disk. [SOLVING MEANS] In a network boot system 100, a network boot server 10 and a terminal 20a are connected over a network 30, the network boot server 10 providing a disk image, as a virtual disk 22b, containing an operating system that operates on the terminal, the terminal 20a being provided with a storage device 21a. The OS is provided with a read cache mechanism that stores data read from the server as cache data in the storage device. Generation management data M and rewrite management table T2 are provided. When the client terminal is booted the second or subsequent time in a private mode in which the terminal directly writes to the virtual disk, the read cache mechanism replaces the rewrite management table with the generation management data and boots up a read cache while avoiding using cache data that has been modified. |
