升级维护级别究竟应该怎么升级呢？

dai_zhy

该用什么命令升呢？

zchzy

ibm网站有详细说明的，照着做都很简单,你下载的页面下面就告诉你了。\r\n\r\n例子:Click the link for the Volume 1 package above. \r\nPut the package (a tar.gz file) in /usr/sys/inst.images \r\nExtract the filesets from the package. \r\ncd /usr/sys/inst.images \r\ngzip -d -c 530003_v1.tar.gz | tar -xvf - \r\nBack up your system. \r\nInstall the package by creating a table of contents for install to use. Then update the install subsystem itself. Run SMIT to complete the installation. \r\ninutoc /usr/sys/inst.images \r\ninstallp -acgXd /usr/sys/inst.images bos.rte.install \r\nsmit update_all \r\nRun the oslevel -r command. Depending on the output, do one of the following: \r\nOutput from oslevel -r is 5300-03 \r\n\r\nYour system has all the files it needs. Reboot your system. This maintenance package replaces critical operating system code. \r\n\r\nOR \r\n\r\nOutput from oslevel -r is not 5300-03 \r\n\r\nYour system needs Volume 2 of the maintenance package. Repeat Steps 1 through 5 of the Procedure, clicking the Volume 2 package link and using 530003_v2.tar.gz as the filename in Step 3. After installing Volume 2, reboot your system. This maintenance package replaces critical operating system code.