Przed aktualizacją oprogramowania upewnij się, że zainstalowałeś wszystkie poprzednie erraty dla swojego systemu.

By używać Red Hat Network (RHN) z Red Hat Enterprise Linux 2.1, 3, lub 4, uruchom program aktualizacji Red Hat Update Agent poleceniem

[root@host ~]# up2date

Jeśli chcesz dowiedzieć się jak dokładnie działa i operować up2date, zajrzyj do manuala:

[root@host ~]# man up2date

 

By używać Red Hat Network (RHN)  z Red Hat Enterprise Linux 5, uruchom graficzne narzędzie aktualizacji:

[root@host ~]# pup

Jeśli preferujesz konsolowe rozwiązanie, wpisz w niej:

[root@host ~]# yum update

Aby dowiedziedzieć się o yumie więcej, przeczytaj manual:

[root@host ~]# man yum
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Maybe you can do it yourself. It takes expertise to get the most from open source software (e.g., identifying the most stable versions of the various components, working with the upstream community to ensure your versions and any updates are supported by the community, obtaining hardware and software enablement and support from all of the various independent hardware and software vendors, etc.). Alternative versions of and difficult to use for enterprise computing.

These often represent development projects, not enterprise solutions. Red Hat creates value by leveraging the innovations provided by the open source development model to engineer and support a world-class operating system.Red Hat is a single point of accountability — managing bug fixes, security patches, maintenance updates, new features, system management technology, and support

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Ważne: Dla w pełni zwirtualizowanych gości RHEL4 zainstaluj najnowszą wersję up2date.

Poniższa procedura zadziała zarówno dla w pełni jak i parawirtualizowanych gości.

System hostujacy (dom0) musi zostać zarejestrowany w RHN. Uczyń to w standardowy sposób.

Na stronie System Properties (właściwości systemu), zasubskrybuj system bazowy do właściwego Virtualization Channel (kanału wirtualizacji). Wirtualizacja pozwala pozwala na rejestrację do 4 gości Xen, podczas gdy Virtualization Platform pozwala na ich nieskończoną ilość.

Upewnij się, że rhn-virtualization-common i rhn-virtualization-host są zainstalowane na systemie hostującym. Jeśli nie są, uruchom: [root@host /]# yum install rhn-virtualization-common rhn-virtualization-host

Zainstaluj gościa Xen.

Upewnij się, że gość Xena jest uruchomiony. W poleceniu xenguest to nazwa systemu gościa. [root@host /]# xm create xenguest

W linii komend systemu hostującego wpisz: [root@host /]# rhn_check

W linii komend systemu hostującego wpisz: [root@host /]# rhn-profile-sync

W systemie gościa Xen wpisz: [root@host /]# rhn_register

Teraz gość Xen pokaże się w zarejestrowanych, zwirtualizowanych systemach.

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Many of our most successful customers also have Linux-savvy people in-house. When Red Hat handles these customers’ support, it frees their experts to concentrate on strategic, high-value projects.

This saves you from having to expend valuable resources on issues that are less strategic to your company.

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A Red Hat Enterprise Linux subscription is a commercial service delivered by Red Hat. The subscription      includes:                                                     

1. Delivery of software that has been tested and certified for integration with hardware and software providers;
2. Software updates and upgrades through Red Hat Network;                             
3. Telephone and/or web support;                    
4. intellectual property protections in the event of infringement claims.                                

While our license agreement doesn’t restrict your ability to copy and distribute the software in your organization, you are required by the enterprise agreement to purchase a subscription for each system consistent with its function and service level.                       

If you determine that you don’t need the benefits that come with a tested and certified enterprise-grade operating system, along with the support, software maintenance, and intellectual property assurances that a Red Hat subscription provides, there are community versions of Linux available, including Fedora.
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A Red Hat subscription is much more than telephone support — you get access to proven, enterprise-ready technology. Red Hat Enterprise Linux is a market-leading, stable, tested operating system that features:          

1. The widest choice of supported hardware systems and software applications.      
2. Access to new features, fixes, and security patches.                                                               
3. Access to major upgrades at no additional charge.

We also offer basic solutions for customers who don’t anticipate needing phone support. Więcej ...

Having subscriptions for each one of your systems allows you to contact Red Hat for each system. We have found a price at which our customers feel that payment reflects the value of the support each server will receive.

Red Hat’s business is built on this exchange of value. If, based on your business needs for a particular server, you anticipate the need to speak directly with a Red Hat support representative and/or to receive an immediate response to a support issue, then you should purchase a standard or premium-level subscription. Purchasing basic support for a server — which entitles you to contact Red Hat only via the web and comes with a 2-business-day response time — but requesting ment for another server violates the terms of the Red Hat Enterprise Agreement.

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