HardyReleaseNotes

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These release notes document known issues with Ubuntu 8.04 LTS and version 8.04 of Kubuntu and Xubuntu.

= System Requirements =

The minimum memory requirement for Ubuntu 8.04 is 384MB of memory for desktop CDs, and 256MB for other installation methods. (Note that some of your system's memory may be unavailable due to being used for the graphics card.)

With only the minimum amount of memory available, the installation process will take longer than normal, but will complete successfully, and the system will perform adequately once installed. Low-memory systems may be able to use the desktop CD to install by adding the `only-ubiquity` boot option to run just the installer rather than the whole desktop.

= Installation =

== OpenOffice.org database, Java, math support ==

 * For reasons of disk space, the database and math components of Open``Office.org, as well as Java integration support, are not included on the installation CDs. To get the full Open``Office.org suite after install, you can select "Open``Office.org Database" from the '''Applications -> Add/Remove''' menu, or install the `openoffice.org` metapackage using the package manager.

== iSCSI partitions ==

 * The open-iscsi package is now a maintained option in Ubuntu 8.04 LTS, and iSCSI NAS partitions can be configured right from the installer. At this time, however, the root and boot filesystems should be placed on a local partition, with /usr on the same filesystem as root.

= Upgrading =

Users of Ubuntu 7.10 or Ubuntu 6.06 LTS can upgrade to Ubuntu 8.04 by a convenient automated process. Complete instructions may be found at http://www.ubuntu.com/getubuntu/upgrading.

== Route metrics ==

 * ifupdown now sets the default route metric to 100 for interfaces with no metric option set in /etc/network/interfaces. This change makes no difference for most users, but may affect a few users with complex networking requirements. If you rely on the previous default route metric of 0 (zero), edit /etc/network/interfaces and set the metric option explicitly for your interface, for example: {{{
iface eth0 inet static
        address 192.168.0.2
        network 192.168.0.0
        broadcast 192.168.0.255
        netmask 255.255.255.0
        gateway 192.168.0.1
        metric 0
}}}

== Network Manager ==

 * In Ubuntu 8.04, network-manager only manages interfaces that are marked for roaming. Thus, all interfaces that were previously managed by network-manager will be set to roaming mode during upgrade. Technically, this takes any interface stanzas using the `dhcp` method with no options and that are marked `auto`, and removes them from /etc/network/interfaces. If you rely on your interfaces being started by ifupdown when the system starts up, you need to re-enable them in /etc/network/interfaces manually, or disable roaming in '''System''' -> '''Administration''' -> '''Network'''.

== NFS mount support ==

 * To mount NFS filesystems, you must now install the `nfs-common` package.

== /bin/sh is now dash ==

 * To improve overall system performance, the /bin/sh shell in Ubuntu 6.10 and later is dash, rather than bash as it was in Ubuntu 6.06 LTS. This may cause compatibility problems for local shell scripts. Please see DashAsBinSh for more information.

== UltraSPARC disk label changes ==

 * Users upgrading to Ubuntu 8.04 LTS on UltraSPARC from Ubuntu 6.06 LTS should manually re-run fdisk on all disks. fdisk will warn if the disk label needs to be updated; follow its instructions. New installations of Ubuntu 8.04 will automatically use the new disk label format.

= Other known bugs =
See [:HardyHeron/ReleaseNotes].

HardyReleaseNotes (last edited 2010-01-28 06:51:08 by minbar)