và tập tin (trong đó có tất cả các trình điều khiển trợ giúp phần cứng các tập tin). • kernel-doc - kernel-doc gói phần mềm (có sẵn trên đĩa CD-2 của phân phối Red Hat Linux) có chứa một tập lớn các tài liệu mô tả hạt nhân và trình điều khiển. | You can of course automate this process with cron. To create an amdump schedule similar to the regular dump schedule discussed in an earlier section do the following. While logged in as root enter the crontab command with the -e option crontab -e This brings up the root crontab file in an editor. Add the following lines to the end of the file 0 22 0 usr sbin amdump normal 0 22 1 usr sbin amdump incremental 0 22 2 usr sbin amdump incremental 0 22 3 usr sbin amdump incremental 0 22 4 usr sbin amdump incremental 0 22 5 usr sbin amdump incremental 0 22 6 usr sbin amdump incremental Save and exit the file. The cron daemon will now run amdump at 10 00 . 22 00 in military time every day of the week. This example assumes that a second incremental configuration has been created. You can do this by creating a subdirectory named incremental under etc amanda and populating it with appropriately modified and disklist files. You also need to create a subdirectory named incremental under usr adm amanda so that amanda has somewhere to write the logfiles for this configuration. It may be a bit of work to get it all in place but once you do Amanda can make your network backups much easier to manage. It is perhaps overkill for a small office but in a large enterprise network situation it enables Red Hat Linux to act as a powerful backup server. Using the pax Archiving Tool Over the years a variety of UNIX operating systems have arisen resulting in a variety of similar but incompatible file archiving formats. Even tools that go by the same name may use slightly different storage formats on different systems. This can lead to big problems when trying to archive and retrieve data in a multiplatform environment. Fortunately there is a solution. The pax program is a POSIX standard utility that can read and write a wide variety of archive formats. An RPM package for pax is included with Red Hat Linux. If it is not already installed copy the file from your
