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发表于 2012-5-12 14:03:07
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本帖最后由 kaluoota 于 2012-5-12 14:05 编辑
Algorithm for usage of VCS 2011+ on CentOS 6.0+ =>
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1. In "/etc/redhat-release" being "root / sudo(if applicable)" ==>
-> Comment the existing version using "#" character in the above file [without quotes]
-> Enter the following : "CentOS release 5.7 (Final)" <- Without quotes as the very "First Line"
-> Save and exit as root (NO re-boot is required)
-> Start using the VCS 2011+ assuming proper license is available for that machine / (over)network
2. After sims complete, either being bored of VCS(or Synopsys in general) or job complete =>
-> Replace the original CentOS version line in the above file as the very "First Line"
-> Retain the CentOS release 5.7 (Final) line, but commented using "#" character and as second(2nd)
line without quotes as well
-> Save and exit as root (or sudo if applicable)
3. Use CentOS normally as usual
4. Don't ever "upgrade/update/install" anything in the present OS(6.0+) when above file has Centos 5.7[+/-]
as entry, otherwise even the kernel will get overwritten if updated while having 5.7 as entry even
through the OS might be 6.0+
5. If Kernel of Centos 6.0+ is overwritten with kernel of Centos 5.7+, NO issues : =>
-> Using YUM, "re-install" kernel to come back to Centos 6.0+(6.1/6.2/6.x) and reboot
-> All is well :-D
6. Take extreme care of => "/etc/redhat-release" file in RHEL/CentOS environment !!!
7. Even RHEL engineers can use the above algorithm because => CentOS is a carbon copy of => RHEL |
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