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Tham khảo tài liệu 'professional information technology-programming book part 125', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Next you ll be asked if you intend to run the X Window System X.org . If you say yes here a system-level setting for the AGP aperture will be adjusted according to your detected hardware. This makes it more efficient to display graphics but it could be a theoretical security risk attacks via the graphics processor . All things considered it s not much of a security concern but if you aren t going to run X.org on this machine or if you have a graphics adapter that uses a proprietary bus or a non-AGP interface such as PCI or PCI Express there is absolutely no sense in turning it on. The default here is no so if you want to enable it type yes and press Enter. The following option Change the default console to com0 is for serial terminalsyou don t want to change this unless you will be primarily administering this machine over a serial terminal. The default is no. Finally you ll be asked to set the local time zone. Type a question mark and press Enter to see the list. When you ve identified the name of your time zone type it in and press Enter. Many of the time zones are shown as a list of prefixesfor example US . Type the prefix associated with your location press Enter and you ll be prompted for the subtime zone. The installer will then finish and you ll be directed to use the halt command. Do so and when the system is halted eject the CD or floppy you booted from then press Enter to reboot into OpenBSD. Now skip down to the section on post-install configuration. Chapter 4. Upgrading from OpenBSD 3.9 OpenBSD supports upgrades only from the release immediately prior to the one you want to install. In this case that version is 3.9 so if you are using a release that is older than 3.9 there are no guarantees that this process will work for you. The method listed here is the quickest easiest and most predictable method of upgrading. You could alternatively download the OpenBSD 4.0 source code via CVS and build the entire operating system from scratch but it ll take a long
