CentOS 6.3 Released

The new version of CentOS 6.3 has become access for updates from the updates repository. For version 6.2, the update was installed without any problems and is currently being tested on a test server and on a non-business-critical live server. While the flight is normal, however, some of the nuances described in the press release are alarming.

As global changes are indicated:

• libreoffice now comes as an office default package. The specified office suite is installed with the “Desktop” installation type. If OpenOffice is already installed on the system, when updating via yum update , the installer will remove OpenOffice and put libreoffice in its place. [ link ]
• As in RHEL, the matahari API has been deprecated. If you decide to continue using matahari, the 6.3 updates are still available, but in upcoming releases this API set will be excluded from RHEL and, accordingly, from CentOS. [ link ]
• Added utilities for migrating physical and virtual machines from their current format to the Virtual KVM Machine format. The packages are called virt-p2v (physical to virtual) and virt-v2v (virtual to virtual).

Known notes and problems:

• The installer requires at least 392MB of RAM. If the RAM is less than 652MB, then the text mode of the installer will be automatically selected. Compared to the GUI, the text installer is limited in its capabilities. Main limitations: there is no possibility to configure partitions, there is no choice of storage type and choice of packages [ link ] To bypass the restrictions you need to collect your KickStart: documentation .
• 32-bit distributions (CentOS-6.3-i386-netinstall.iso and CentOS-6.3-i386-bin-DVD1.iso) do not offer a memory test (memtest) during installation. The test is available only in 64-bit distributions.
• On systems with a RAM of less than 2Gb, the message “Insufficient memory to configure kdump!” May appear during the installation process. It can be ignored.
• The i386 and x86_64 distributions are split into 2 DVDs. The installation of the Basic server and the Basic desktop can be made from DVD-1.
• If ethernet interfaces do not come up with the default NetworkManager, follow the recommendations for this link .
• There is a problem with using 802.1q VLANs on 802.3ad interfaces on certain network adapters. Description . The CentOS-Plus kernel released with 6.3 contains a patch that fixes this problem. The fix is ​​temporary and will last until the problem is resolved in RHEL.
• There is a problem with loading CentOS on some systems with EFI support enabled. [ link ]
• If you upgrade CentOS from 6.2 to 6.3, then the system may freeze on reboot if certain conditions match. For example, this can happen if you apply only security updates from CentOS 6.3. To fix this problem, boot the system with the “enforcing = 0” option and update the selinux policy to at least version 3.7.19-155.el6_3.
• Some packages have the suffix .centos in the name and do not contain updates. The following SRPMSs are subject to this problem: bash, emacs, gtk2, pango, at-spi, gtk2-engines, libcanberra, libgail-gnome, libwmf, Packagekit. [ link ]

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Source:

• The full version of the press release is available on the official website: [ link ]
• Red Hat 6.3 press release: [ link ]