Update-Related Notes
14
• Upgrading MySQL from SLES9 to SLES10
During the upgrade from SUSE Linux Enterprise Server9 to SUSE Linux Enterprise Server10 also
MySQL is upgraded from 4.x to 5.x. To complete this migration you have also to upgrade your data as
described in the MySQL documentation.
• Migrating from PHP 4 to PHP 5
Although most existing PHP 4 code should work without changes, there are a few
backwards-incompatible changes. Find a list of these changes at: http://www.zend.com/manual/
migration5.incompatible.php
• Switching from Heimdal to MIT Kerberos
MIT Kerberos is now used instead of heimdal. Converting an existing Heimdal configuration
automatically is not always possible. During a system update, backup copies of configuration files
are created in
/etc
with the suffix
.heimdal
. YaST-generated configuration settings in
/etc/
krb5.conf
are converted, but check whether the results match your expectations.
Before starting the update, you should decrypt an existing Heimdal database into a human-readable file
with the command
kadmin -l dump -d heimdal-db.txt
. This way, you can create a list of available principals that you can restore one-by-one using kdc from
MIT Kerberos. Find more information about setting up a KDC in the documentation in the "krb5-doc"
package.
To configure a Kerberos client, start the YaST Kerberos Client module and enter your values for
"Standard Domain", "Standard Realm", and "KDC Server Address".
• MDNS and .local domain names
The .local top level domain is treated as link-local domain by the resolver. DNS requests are send
as multicast DNS requests instead of normal DNS requests. If you already use the .local domain
in your nameserver configuration you will have to switch this option off in /etc/host.conf. Please
also read the host.conf manual page, more information on multicast DNS can be found on http://
www.multicastdns.org.
MDNS can be disabled during installation by booting with the
nomdns
option set.
• Fine-Tuning Firewall Settings
SuSEfirewall2 is enabled by default. That means that by default you cannot log in from remote systems.
It also interferes with network browsing and multicast applications, such as SLP and Samba ("Network
Neighborhood"). You can fine-tune the firewall settings using YaST.
• CD/DVD device name on pSeries changed
With SUSE Linux Enterprise Server 10 SP1, the built-in CD/DVD drive on POWER3/POWER4 pSeries
models p610/p615/p630 will be accessed with the libata kernel driver because it is more reliable. On all
POWER5 models the libata driver is used to allow DLPAR hotplug operatons.
This changes the kernel device name from
/dev/hda
to
/dev/sr0
.
• vsftpd with xinetd
