Server management with dynamic construction of pre-boot images
View Patent ↗A request handler may receive an image capture request for an operating system (OS) executing on a server. A pre-boot image handler may generate a pre-boot image, based on the image capture request and on the executing operating system. An image handler may capture an image of the operating system, based on the pre-boot image.
1. A computer system including instructions recorded on a computer-readable medium and executable by at least one processor of a server, the system comprising:
a request handler configured to receive an image capture request for an operating system (OS) executing on the server;
a pre-boot image handler configured to analyze, at the server, the executing operating system of the server and generate a pre-boot image, based on the image capture request and on the executing operating system, the pre-boot image handler being further configured to cause the at least one processor to change an existing boot procedure of a boot configuration of the server to include the pre-boot image within a modified boot procedure; and
an image handler configured to execute the modified boot procedure at the server to capture an image of the operating system.
2. The system of claim 1 , wherein the request handler is executed using a management server that is remote from the server.
3. The system of claim 1 , wherein the request handler is configured to receive the image capture request from a system administrator by way of a graphical user interface (GUI).
4. The system of claim 1 , wherein the pre-boot image generator is configured to analyze the executing operating system to determine a subset of components of the boot configuration for the executing operating system, for inclusion thereof in the pre-boot image, based on a utility of the subset of components in booting the operating system.
5. The system of claim 1 , wherein the pre-boot image generator is configured to include capture components within the pre-boot image which are configured to capture the image during execution of the modified boot procedure of the server using the pre-boot image.
6. The system of claim 1 , wherein the pre-boot image generator is configured to execute the modified boot procedure including changing boot configuration settings to cause a reversion from the modified boot procedure back to the existing boot procedure of the boot configuration during an immediately-subsequent booting of the server.
7. The system of claim 1 , wherein the pre-boot image is deleted from the server in conjunction with the capture of the image.
8. The system of claim 1 , wherein the operating system is a Linux operating system.
9. A computer-implemented method, comprising:
receiving an image capture request for an operating system (OS) executing on a server;
generating a pre-boot image, based on the image capture request and on the executing operating system;
changing a configuration pointer of a boot loader of the server to point from an existing boot configuration to the pre-boot image during a first re-booting of the server, to thereby create a modified boot procedure for the first re-booting, wherein the pre-boot image includes an instruction to change the configuration pointer from pointing to the pre-boot image back to the existing boot configuration during a second re-booting of the server;
executing the first re-booting of the server including executing the modified boot procedure, including executing the pre-boot image and capturing an image of the operating system; and
executing the second re-booting of the server including executing the existing boot configuration.
10. The method of claim 9 , wherein generating the pre-boot image comprises instructing a pre-boot image generator implemented using the server to construct the pre-boot image.
11. The method of claim 10 , wherein generating the pre-boot image comprises analyzing the executing operating system to determine a subset of components of the existing boot configuration for the executing operating system, for inclusion thereof in the pre-boot image and in the modified boot procedure, based on a utility of the subset of components in booting the operating system.
12. The method of claim 10 , wherein generating the pre-boot image comprises including capture components within the pre-boot image which are configured to capture the image during the first re-booting of the server using the pre-boot image.
13. A computer program product, the computer program product being tangibly embodied on a non-transitory computer-readable medium and comprising instructions that, when executed, are configured to:
receive an image capture request for an operating system (OS) executing on a server;
generate a pre-boot image, based on the image capture request and on the executing operating system;
change a configuration pointer of a boot loader of the server to point from an existing boot configuration to the pre-boot image during a first re-booting of the server, to thereby create a modified boot procedure for the first re-booting, wherein the pre-boot image includes an instruction to change the configuration pointer from pointing to the pre-boot image back to the existing boot configuration during a second re-booting of the server;
execute the first re-booting of the server including executing the modified boot procedure, including executing the pre-boot image and capturing an image of the operating system; and
execute the second re-booting of the server including executing the existing boot configuration.
14. The computer program product of claim 13 , wherein the instructions, when executed, are configured to:
analyze the executing operating system to determine a subset of components of the existing boot configuration for the executing operating system, for inclusion thereof in the pre-boot image, based on a utility of the subset of components in booting the operating system.
15. The computer program product of claim 13 , wherein the instructions, when executed, are configured to:
include capture components within the pre-boot image which are configured to capture the image during the first re-booting of the server using the pre-boot image.
16. The computer program product of claim 13 , wherein the instructions, when executed, are configured to:
delete the pre-boot image from the server in conjunction with the capture of the image.
17. The system of claim 1 , wherein the pre-boot image handler is configured to cause the at least one processor to change a configuration pointer of a boot loader of the server to point from the existing boot configuration to the pre-boot image to thereby execute the modified boot procedure.