Oracle Linux 5.11 Release Notes
Updated September 2014
--------------------------------------------------------------------------
Introduction
This document covers the following topics regarding Oracle Linux 5.11.
* Changes from the upstream release
* New packages added in this release
* Packages added by Oracle
* Kernel and Driver Updates
* Red Hat Compatible Kernel
* Red Hat Compatible Kernel with Bug Fixes by Oracle
* Bug Fixes
* Installation
* Unbreakable Enterprise Kernel
* Introduction
* Notable Changes
* Driver Updates
* Notable Bug Fixes
* Technology Previews
* Compatibility
* Technology Preview Features for Oracle Linux 5
* Known Issues for Oracle Linux 5.11
* Configuring Updates for Oracle Linux 5 Update 11
For the latest updates please refer to the online version of these release
notes available at:
http://oss.oracle.com/el5/docs/
NOTE: An upgrade of Oracle Linux from a beta release is not supported.
Further, an in-place upgrade between major versions of Oracle Linux is not
supported. Oracle does not recommend an upgrade from earlier major
versions of Oracle Linux even though anaconda provides an option to do
this upgrade. A fresh installation is strongly recommended rather than a
system upgrade between major versions.
Changes from the Upstream Release
The following RPMs are modified from the upstream release. All changes are
trademark and look/feel related unless otherwise noted below under the
specific RPM.
* anaconda --- Path of the Distribution changed from RedHat to
Enterprise on the install CDs
* anacron
* audit
* autofs
* basesystem
* booty
* bug-buddy
* clustermon
* cmirror-kmod
* conga
* coreutils
* cpuspeed
* crash
* cyrus-imapd
* device mapper
* device-mapper-multipath
* e2fsprogs
* eclipse
* efax
* eruby
* ethtool
* filesystem
* firefox
* firstboot
* freeipmi
* fuse
* gdb
* gdm
* gfs-kmod
* glibc
* gnbd-kmod
* gnome-desktop
* gnome-session
* gpm
* grub
* gstreamer
* gzip
* httpd
* hypervkpd
* initscripts
* iotop
* iptables
* iptraf
* irqbalance
* iscsi-initiator-utils
* java-1.6.0-openjdk
* java-1.7.0-openjdk
* jpackage-utils
* jsch
* kdbg
* kdeadmin
* kdeartwork
* kdebase
* kdelibs
* kernel
* kexec-tools
* kudzu
* kvm
* libvirt
* libwvstreams
* libxml2
* libxslt
* lsscsi
* lvm2
* mcelog
* memtest86+
* microcode_ctl
* mkbootdisk
* mkinitrd
* module-init-tools
* net-snmp
* nmap
* numactl
* openldap24-libs
* oprofile
* pango
* pciutils
* perl-XML-Simple
* piranha
* pirut
* procmail
* procps
* psacct
* python-virtinst
* qt4
* quota
* rds-tools
* redhat-artwork
* redhat-lsb
* redhat-release
* redhat-rpm-config
* rhgb
* rhpl
* rhpxl
* rpm
* rsyslog
* rsyslog5
* setroubleshoot
* sgml-common
* sgpio
* sos
* squirrelmail
* stunnel
* sysstat
* system-config-bind
* system-config-date
* system-config-httpd
* system-config-kickstart
* system-config-netboot
* system-config-network
* system-config-nfs
* system-config-printer
* system-config-samba
* system-config-services
* system-config-soundcard
* system-config-users
* tcpdump
* tftp
* tog-pegasus
* tux
* udev
* unzip
* util-linux
* w3m
* wireshark
* xorg-x11-drv-evdev
* xorg-x11-server
* xulrunner
* yum
* yum-rhn-plugin
* yum-utils
The following packages have been removed:
* Cluster_Administration
* compat-gcc-295
* crash-spu-commands
* Deployment_Guide
* Global_File_System
* iprutils
* libehca
* libica
* librtas
* libspe2
* openssl-ibmca
* ppc64-utils
* python-rhsm
* redhat-logos
* redhat-release-notes
* redhat-support-lib-python
* redhat-support-tool
* rhn-client-tools
* rhnsd
* s390utils
* subscription-manager
* subscription-manager-migration-data
* Virtualization
* virt-who
* yaboot
The following documentation packages have been removed:
* Deployment_Guide
* Virtualization
* Global_File_System
* Cluster_Administration
New Packages added in this release
There were no new packages added to Oracle Linux 5.11
Packages added by Oracle
The following packages have been added to the release:
* aic94xx-firmware
* atmel-firmware
* bfa-firmware
* enterprise-release
* enterprise-release-notes
* ipw2100-firmware
* ipw2200-firmware
* ivtv-firmware
* iwl1000-firmware
* iwl3945-firmware
* iwl4965-firmware
* iwl5000-firmware
* iwl5150-firmware
* iwl6000-firmware
* iwl6050-firmware
* kernel-uek
* latencytop
* libertas-usb8388-firmware
* netxen-firmware
* ocfs2
* ocfs2-tools
* oracleasm
* oracleasm-support
* oracle-linux
* oraclelinux-release
* oracle-logos
* ql2xxx-firmware
* reflink
* rt61pci-firmware
* rt73usb-firmware
* up2date
* zd1211-firmware
* sg3_utils-1.28-4.el5
* rds-tools-2.0.7-1.12.el5
* rng-utils-4-1.el5
* crash-7.0.4-1.0.0.el5
* kexec-tools-2.0.3-4.0.9.el5
* device-mapper-multipath-0.4.9-64.0.10.el5
* oracle-validated-1.0.0-34.el5
* oracle-validated-1.1.0-20.el5
Kernel and Driver Updates
Oracle Linux 5.11 ships with the following kernel packages
* Unbreakable Enterprise kernel [kernel-uek-2.6.39-400.215.10.el5uek]
* Installed and booted by default
* Red Hat compatible Kernel [kernel-2.6.18-398.el5].
* Installed by default
* Red Hat compatible Kernel with bug fixes added by Oracle
[kernel-2.6.18-398.0.0.0.1.el5]
* This kernel is available on x86 and x86-64, can only be installed
manually (see below for details)
Note:Oracle Linux 5.11 includes both a 32 bit and a 64 bit Unbreakable
Enterprise Kernel. Both Unbreakable Enterprise kernel and Red Hat
compatible kernel are installed and the system boots with Unbreakable
Enterprise kernel by default. If needed /etc/grub.conf can be modified to
make the system boot with Red Hat compatible kernel by default.
Red Hat Compatible Kernel
This section covers significant changes in the Red Hat compatible kernel
in this release.
Driver Updates from the upstream distribution provider
Storage
* The mptfusion driver has been updated to version 3.04.20, which adds
the following device ID: SAS1068_820XELP
Red Hat Compatible Kernel with Bug Fixes by Oracle
This is the Red Hat compatible kernel with critical bug fixes produced by
Oracle.
Bug Fixes (includes all Oracle bug fixes made to the Red Hat Compatible
Kernel across all releases)
* i386: fix MTRR code [orabug 15862649]
* [oprofile] x86, mm:Add_get_user_pages_fast() [orabug 14277030]
* [oprofile] export_get_user_pages_fast() function [orabug 14277030]
* [oprofile] x86: Fix nmi-unsafe callgraph support [orabug 14277030]
* [oprofile] Use KM_NMI slot for kmap_atomic [orabug 14277030]
* [oprofile] i386 add get_user_pages_fast support [orabug 14277030]
* [kernel] Initialize the local uninitialized variable stats [orabug
14051367]
* [fs] JBD:make jbd support 512B blocks correctly for OCFS2 [orabug
13477763]
* [x86] fxi fpu context corrupt when preempt in signal context [orabug
14038272]
* [mm] fix hugetlb page leak[orabug 12375075]
* fix ia64 build error due to add-support-above-32-vcpus.patch
* [x86] use dynamic vcpu_info remap to support more than 32 vcpus
* [x86] fix lvt0 reset when hvm boot up with noapic param
* [scsi] Remove printk's when doing I/O to a dead device [orabug
12342275]
* [char] ipmi: fix IPMI errors due to timing problems [orabug 12561346]
* [scsi] Fix race when removing SCSI devices [orabug 12404566]
* [net] Redo the broken redhat netconsole over bonding [orabug 12740042]
* [fs] nfs: Fix_put_nfs_open_context() NULL pointer panic [orabug
12687646]
* fix filp_close() race [orabug 10335998]
* make xenkbd.abs_pointer=1 by default [orabug 67188919]
* [xen] check to see if hypervisor supports memory reservation change
[orabug 7556514]
* [net] Enable entropy for bnx2, bnx2x, e1000e, igb, ixgb, ixgbe,
ixgbevf[orabug 10315433]
* [net] Add xen pv netconsole support [orabug 6993043] [bz 7258]
* [mm] Patch shrink_zone to yield during severe mempressure events,
avoiding hands and evictions [orabug 6086839]
* [mm] Enhance shrink_zone patch allow full swap utilization and also be
NUMA-aware [orabug 9245919]
* fix aacraid not to reset during kexec [orabug 8516042]
* [xen]PVHVM guest with PoD crashes under memory pressure[orabug
9107465]
* [xen]PV guest with FC HBA hangs during shutdown [orabug 9764220]
* Support 256GB+ memory for pv guest[orabug 9450615]
* Fix overcommit memory to use percpu_counter for el5 [orabug 6124033]
* [ipmi]Make configurable timeouts for kcs of ipmi [orabug 9752208]
* [ib]Fix memory corruption [orabug 9972346]
* [usb]usbcore: fix endpoint device creation [orabug 14795203]
* [usb]usbcore: fix refcount bug in endpoint removal [orabug 14795203]
Installation
The Red Hat Compatible Kernel with Bug Fixes by Oracle must be manually
installed. To install this kernel, follow these steps:
1. Mount Oracle Linux 5.11 DVD
2. Copy the RPMs from mount_point/Server/oracle_updated to your system
3. Install required kernel using the rpm command, e.g.
# rpm -ihv kernel-2.6.18-371.0.0.0.1.el5.x86_64.rpm
Unbreakable Enterprise Kernel
Introduction
The Unbreakable Enterprise Kernel Release 2 is Oracle's second major
release of its heavily tested and optimized operating system kernel for
Oracle Linux 5 and Oracle Linux 6. It is based on the mainline Linux 3.0
version 3.0.36. It contains a large number of improvements and new
features that have been incorporated into mainline Linux since the first
version of the Unbreakable Enterprise Kernel. Please see the initial
Oracle Unbreakable Enterprise Kernel Release 2 Release Notes for a
detailed description of these changes.
The 2.6.39-400.215.10 release is the fifth quarterly driver update
release, which includes bug and security fixes. The full release notes,
including known issues, can be viewed at Oracle Unbreakable Enterprise
Kernel Release 2 Update 5 Release Notes.
Note: the actual version number displayed by the kernel and on the RPM
packages is 2.6.39. This was done to avoid potential breakage of certain
low-level utilities of the Oracle Linux distribution (also known as the
"plumbing") that potentially can't cope with the new 3.x version scheme.
Regular Linux applications are usually not aware or affected by Linux
kernel version numbers.
Driver Updates
The Unbreakable Enterprise Kernel supports a wide range of hardware and
devices. In close cooperation with hardware and storage vendors, several
device drivers have been updated by Oracle.
Storage drivers
* AACRAID driver updated to 1.2-0[30200]-ms
* Cisco FCoE HBA driver (fnic) updated to 1.5.0.45
* Emulex Fibre Channel HBA driver (lpfc) updated to 0:8.3.7.26.3p
* Intel C600 serieal attached SCSI (SAS) module (isci) updated to 1.0.0
* LSI Fusion-MPT base driver (mptbase) updated to 4.28.20.02
* LSI Fusion-MPT-ioctl driver (mptctl) updated to 4.28.20.02
* LSI Fusion-MPT Fibre Channel host driver (mptfc) updated to 4.28.20.02
* LSI Fusion-MPT IP over Fibre Channel driver (mptlan) updated to
4.28.20.02
* LSI Fusion-MPT SAS driver(mptsas)) updated to 4.28.20.02
* LSI Fusion-MPT SCSI host driver (mptscsih) updated to 4.28.20.02
* LSI Fusion-MPT SPI host driver (mptspi) updated to 4.28.20.02
* LSI Fusion-MPT SAS 2.0 driver (mpt2sas) updated to 17.00.01.00
* LSI Fusion-MPT SAS 3.0 driver (mpt3sas) updated to 3.00.00.00 added.
Supports up to 12 Gb/s host controllers
* MegaRAID SAS driver (megaraid_sas) updated to 06.600.18.00
* Qlogic iSCSI driver (qla4xxx) updated to 5.03.00.03.06.02-uek2.
Supports Open-iSCSI
* Xsigo Core services module driver (xscore) version 6.0.r7269 added.
Required by all Xsigo modules
* Xsigo Virtual HBA driver (xsvhba) verion 6.0.r7269 added
Network drivers
* Broadcom Tigon3 Ethernet adapter driver (tg3) updated to 3.131d.
* Emulex Blade Engine 2 10Gbps adapter driver (be2net) updated to
4.6.63.0u
* Intel Pro/1000 PCI-Express Gigabit network adapter driver (e1000e)
updated to 2.4.14
* Intel Gigabit Ethernet network adapter driver (igb) updated to 4.3.0
* Intel Gigabit Linux driver (igbvf) updated to 2.3.2. Provides
82576-based virtual funtion devices on kernels that support Single
Root I/O Virtualization (SR-IOV)
* Intel 10 Gigabit PCI-Express network adapter driver (ixgbe) updated to
3.15.1
* Qlogic 1/10 GbE Converged/Intelligent Ethernet Adapter driver (qlcnic)
updated to 5.2.43
* Xsigo Core Services module driver (xscore) version 6.0.r7269 added.
Required by all other Xsigo modules.
* Xsigo Virtual Ethernet driver (xve) added
* Xsigo Virtual NIC driver (xsvnic) version 6.0.r7269
Technology Preview
Following features included in the Unbreakable Enterprise Kernel Release 2
are still under development, but are already made available for
testing/evaluation purposes.
* Kernel module signing facility: Applies cryptographic signature
checking to modules on module load, checking the signature against a
ring of public keys compiled into the kernel. GPG is used to do the
cryptographic work and determines the format of the signature and key
data.
* Transcendent memory: Transcendent Memory (tmem for short) provides a
new approach for improving the utilization of physical memory in a
virtualized environment by claiming underutilized memory in a system
and making it available where it is most needed. From the perspective
of an operating system, tmem is fast pseudo-RAM of indeterminate and
varying size that is useful primarily when real RAM is in short
supply. To learn more about this technology and its use cases, see the
Transcendent Memory project page on oss.oracle.com:
http://oss.oracle.com/projects/tmem/
Compatibility
Oracle Linux maintains user-space compatibility with Red Hat Enterprise
Linux, which is independent of the kernel version running underneath the
operating system. Existing applications will continue to run unmodified on
Unbreakable Enterprise Kernel Release 2 Update 5 and no re-certifications
are needed for RHEL certified applications.
The Oracle Linux team works closely with 3rd party hardware and software
vendors to minimize impact on interoperability during releases but in
order to introduce new drivers there are instances where changes must be
made. In this release, there are changes to the kernel ABI which requires
3rd party kernel modules on the system be recompiled. Before installing
this update, please verify the support status of this release with your
application vendor(s).
Technology Preview Features for Oracle Linux 5
The following Technology Preview features are currently not supported
under Oracle Linux 5 and may not be functionally complete.
* Distributed File System (DFS)
* LSI 12 Gb/s adapters with the MegaRAID SAS driver
* CDTB (Clustered database) based on Samba's Trivial Database (TDB)
* Kerberos support for CIFS mounts
* FreeIPMI
* TrouSerS and tpm-tools
* eCryptfs
* Stateless Linux
* AIGLX
* FireWire
* Device Failure Monitoring of RAID sets
* SGPIO Support for dmraid
* Kernel Tracepoint Facility
* Software based Fibre Channel over Ethernet (FCoE)
* iSER Support
* glibc new MALLOC behaviour
These features are not suitable for production use. However, these
features are included to provide the feature with wider exposure.
Known Issues for Oracle Linux 5.11
1. Red Hat compatible Kernel with Oracle bug fixes will be updated to
standard Red Hat compatible kernel during ISO upgrade
The Oracle Linux ISO has the patched Red Hat compatible kernel but
it is not in the iso repodata, therefore if the ISO is used to
upgrade, the kernel will be updated to the Red Hat compatible
version of the latest release (the non-patched). This is expected
behavior.
2. Red Hat compatible Kernel will be updated to standard Red Hat
compatible kernel with Oracle bug fixes during ULN upgrade
If a 5.10 system running the Red Hat compatible kernel registers to
the 5.11 ULN channel, the kernel will be updated to the Red Hat
compatible with Oracle bug fixes version of the latest release. This
is expected behavior.
3. Error: "qemudStaretup:1728: Unable to create cgroup for driver: No
such device or address"
Use the following steps to workaround this error:
mkdir /dev/cgroup
mount -t cgroup none /dev/cgroup -o cpu, memory, devices
4. YUM command error occurs after system is removed from ULN
After removing a system from the list in ULN and running 'yum
update' on the server console, the following error is displayed:
AttributeError: 'module' object has no attribute 'RhnServerException'
To work around this issue remove /etc/sysconfig/rhn/systemid and run
'yum update' again
5. dmsg error: "rtc_cmos: probe of rtc_cmos failed with error -16. Error:
Driver 'pcspkr' is already registered, aborting...kudzu[1373] general
protection ip:8056c78 sp:bfed96b0 error:0 in kudzu[8048000+26000]"
This is a known issue that is seen with Oracle Linux 5 32-bit
para-virtualized guests created using virt-install
6. UDEVD to be updated to use oom_score_adj to disable OOM on 2.6.39-UEK2
This change will set oom_score_adj, if available otherwise if this
fails, it will fall back to the old oom_adj
7. Installation completes successfully but grub.conf file is empty and
system will not successfully boot.
This occurs when trying to install the bootloader to a cciss device.
To correct this, edit the drive order by moving /dev/cciss/c0d0
ahead of /dev/sda
8. Missing openIB drivers (sdp/ulp) for Infiniband in UEK (R1/R2)
When attempting to load the openIB service the error "Loading OpenIB
kernel modules:FATAL: Module ib_sdp not found" is displayed. This is
an artifact of the ib_sdp driver from OpenIB not being included in
the UEK. If you are using OpenIB, you should use the Red Hat
compatible kernel.
9. Service TUX failed to start on Oracle Linux systems running the UEK
When attempting to start tux service (service tux start) the system
reports multiple errors for "No such file or directory" and ends
with "TUX not implemented in this kernel" TUX is not shipped as part
of the UEK and this is expected behavior.
10. After running yum update there are multiple errors in the
yumupdate.log indicating a failure to read modules kvm.ko, kvm-amd.ko,
ksm.ko, kvm-intel.ko with the message "no such file or directory"
The error messages are generated due to bad symbolic links in the Red
Hat compatible kernel and are considered harmless.
11. HVM with PV Drivers Upgrade Issue: Cannot Update Bootloader
configuration
When upgrading a VM using the HVM with PV Drivers Domain type on
Oracle Enterprise Linux 5.11 from previous versions using the ISO
media, the option to upgrade the boot loader configuration may not be
available. This is due to a difference in the way the kernel detects
the disk devices that prevents it from detecting the existing
configuration. There are two ways to work around the problem:
- Use yum to upgrade the systems to 5.11 instead of an ISO
- Choose the "create new bootloader" option
After the upgrade, old kernel entries that refer to removed kernel
packages may remain in the grub.conf configuration file. Make sure to
boot to the 5.11 kernel and remove the invalid entries.
12. No networking after upgrading an Oracle Linux 5 HVM guest on Oracle VM
2.2.2
Upgrading an existing Oracle Linux 5 Update 6 or Update 7 guest
which is running in HVM mode on Oracle VM 2.2.2 may result in the
network interface(s) being disabled after the reboot post-upgrade.
To resolve this issue, ensure that the network interfaces are set to
"paravirtual" in Oracle VM Manager.
Alternatively, to maintain the emulated devices inside the guest,
add xen_emul_unplug=never to the kernel boot line in
/boot/grub/grub.conf and reboot the guest.
13. No networking after upgrading an Oracle Linux 5 HVM with PV Drivers
guest on Oracle VM 2.2.2 or 3.0
Upgrading an existing Oracle Linux 5 Update 6 or Update 7 guest
which is running in HVM with PV Drivers mode on Oracle VM 2.2.2 or
3.0 may result in the network interface(s) being disabled after the
reboot post-upgrade. To resolve this issue, rename the
/etc/sysconfig/network-scripts/ifcfg-eth0.bak file to
/etc/sysconfig/network-scripts/ifcfg-eth0 and reboot the guest.
14. Warnings appear in dmesg on first boot
After an initial install of Oracle Linux 5.11, the following warning
may appear one or more times in the output of dmesg:
warning: process `firstboot' used the deprecated sysctl system call with 1.23.
This warning can be safely ignored.
15. New multipath settings requires changes to /etc/multipath.conf
Oracle Linux 5.11 includes a new version of device-mapper-multipath.
This new version requires manual changes to the /etc/multipath.conf
file. In the multipath.conf, the line with prio_callout needs to be
replaced by the keyword prio, and a simple string, not an executable
pathname, used for the parameter to prio. Valid settings for prio
are:
* alua
* ontap
* const
* random
* emc
* rdac
* hds
* tpg_pref
* hp_sw
* weighted
16. Multipath failure causes flush of all multipath devices (12760775)
In some multipath failure cases, the multipath maps can get flushed
when all paths fail, and multipath -l displays no information on the
status of your multipath devices. This has been reported with 2.6.39
UEK kernels using NetApp LUNs, but not when running 2.6.18 series
kernels with the same storage LUNs.
17. Error inserting cxgb3i module (13493043)
iscsi offload via cxgb3i on a server with Chelsio T3 Network
Controller will fail with following error if ofa kernel package is
installed
fatal: error inserting cxgb3i - unknown symbol t3_l2e_free
Use following workaround steps to fix the issue:
* Remove cxgb3i dependent module from memory if any loaded , i.e
# rmmod libcxgbi cxgb3
* Uninstall ofa package,
# rpm -e ofa-2.6.32-300.10.1.el6uek-1.5.1-4.0.47.x86_64
* Load cxgb3i module
# modprobe cxgb3i
18. Slow performance on 10Gb Ethernet Interfaces The default networking
tuning parameters may be too low for some 10Gb Ethernet interface
drivers. If you are experiencing less than expected network
performance, change the following NIC parameters:
* rx-usecs: 1
* rx-frames: 0
To:
* rx-usecs: 10
* rx-frames: 10
19. dbus-daemon warning in dmesg on 32-bit systems
On 32-bit Oracle Linux systems, you may see the following warning in
dmesg:
warning: `dbus-daemon' uses 32-bit capabilities (legacy support in use)
This is only a warning and can be safely ignored.
20. iTCO_wdt warning in dmesg
Some server hardware may not support the Intel TCO watchdog drivers.
The following warning may be seen in dmesg:
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
iTCO_wdt: failed to reset NO_REBOOT flag, reboot disabled by hardware
iTCO_wdt: No card detected
intel_rng: FWH not detected
To disable this TCO WatchDog Timer Driver and suppress this warning
at boot time add the line "blacklist iTCO_wdt" to
/etc/modprobe.d/blacklist-watchdog".
21. Unbreakable Enterprise Kernel firmware must be manually installed
prior to upgrade
Due to a change in the way firmware is loaded between the Red Hat
Compatible Kernel and the Oracle Unbreakable Enterprise Kernel, you
may need to manually install the correct UEK kernel firmware package
if you want to boot a previous kernel version after upgrading to
Oracle Linux 5.11 . For example, to install the firmware for
kernel-uek-2.6.39-300.10.1, download the correct RPM package from
the Unbreakable Linux Network and run the following command:
# rpm -ivh --force kernel-uek-firmware-2.6.39-300.10.1.el5uek.noarch.rpm
22. Memory limited for Oracle Linux 5.11 Paravirtualized Guests
Oracle Linux 5.11 paravirtualized guests running on Oracle VM with
the Unbreakable Enterprise Kernel have a memory limit of 480GB.
Setting the memory beyond this value may cause the paravirtualized
network interfaces to fail.
23. Oracle Linux 5.11 32-bit guest in HVM with PV Drivers mode with more
than 1 vCPU hangs on boot
Attempting to boot a 32-bit HVM guest with PV Drives with more than
1 virtual CPU may fail. To resolve this issue, boot the guest with a
single virtual CPU and append tsc=reliable parameter to the kernel
boot line in
/boot/grub/grub/conf
You can then boot the guest with multiple virtual CPUs.
24. kexec/kdump may not work on some server platforms
Certain server platforms may not support the default kdump
parameters. To test this, enable kdump and issue:
echo c > /proc/sysrq-trigger
If your server hangs indefinitely, you may need to disable the
"reset_devices" parameter for kdump. To do this, edit
/etc/sysconfig/kdump and remove the "reset_devices" parameter from
the KDUMP_COMMANDLINE_APPEND variable.
25. Using yum to upgrade previous update from Unbreakable Linux Network
(ULN)
yum package need to be updated before upgrading previous update
releases of Oracle Linux 5 to Oracle Linux 5 Update 8 using yum from
ULN. Please use the following steps to upgrade:
# yum update yum
# yum update
26. Default kernel after upgrade
In certain upgrade scenarios the Unbreakable Enterprise Kernel may
not be the default boot kernel. Update /etc/grub.conf to make the
latest Unbreakable Enterprise Kernel as the default boot kernel.
27. Missing kernel module ib_iser.ko
Starting OpenFabrics Enterprise Distribution 1.4.2-5 version (ofa
package), ib_iser kernel module is not built as part of ofa package.
If the ofa package installed on the system tries to load ib_iser.ko,
the following message will be displayed on the console
ib_iser: disagrees about version of symbol ib_fmr_pool_unmap
ib_iser: Unknown symbol ib_fmr_pool_unmap
These messages can be ignored as ib_iser.ko is no more needed.
28. Upgrade failure for the full install of Oracle Linux 5
If any of the following packages are installed on the system
kmod-cmirror
kmod-cmirror-xen
kmod-gfs
kmod-gfs-xen
kmod-gnbd
kmod-gnbd-xen
Upgrade of Oracle Linux 5 system may fail with the following error
An error occurred while installing packages.
Please examine /root/install.log on your
installed system for detailed information
to workaround this problem, remove above packages before upgrade.
These packages can be installed after the upgrade.
29. Failed to stat /dev/mapper/* message during boot of paravirtualized
guests
Following messages during boot of paravirtualized guest can be
ignored
Failed to stat /dev/mapper/no
Failed to stat /dev/mapper/block
Failed to stat /dev/mapper/devices
Failed to stat /dev/mapper/found
These errors are expected as dmraid utility returns 'no block
devices found' because an ioctl to get serial numbers on pv devices
returns -EINVAL."
30. Spurious udev messages during restore of a failed path (11682171)
When failed paths are restored in a multipath configuration, you may
see udevd-work error messages in /var/log/messages. The failed paths
do get restored despite these messages.
31. Default NFS v4 mount options
The default NFS mount option has changed to NFS v4. To mount an NFS
volume using NFS v3 (the default using the Red Hat Compatible
Kernel), use the following mount options:
-o vers=3,mountproto=tcp
32. Serial console not working for a paravirtualized guest (10059184)
Please use the following steps to configure the serial console in a
paravirtualized guest (PV) using the Unbreakable Enterprise kernel
(updates are in the guest):
1. change the kernel boot parameter 'console=xvc0' to
'console=hvc0' in the /etc/grub.conf:
kernel /vmlinuz-2.6.32-300.10.1.el5 ro root=/dev/sd0 console=tty0 console=hvc0
2. add an 'hvc0' entry to /etc/inittab:
co:2345:respawn:/sbin/agetty hvc0 9600 vt100-nav
3. add an 'hvc0' entry to /etc/securetty
.
33. Setting serial console in a hardware virtualized (HVM) guest
To set the serial console a hardware virtualized (HVM) guest use the
following settings in the guest:
* On the kernel boot line in grub.conf, add:
console=tty0 console=ttyS0,57600n8
* add the following to /etc/securetty
ttyS0
* add the following to /etc/inittab
co:2345:respawn:/sbin/agetty ttyS0 57600 vt100-nav
34. Console appears to hang while booting on certain systems (10094052)
On some hardware, the console may appear to hang during the boot
process after starting udev. But the system does boot up properly
and is accessible. A workaround to this problem is to add nomodeset
as a kernel boot parameter in /etc/grub.conf:
kernel /vmlinuz-2.6.32-300.10.1.el5uek.x86_64 ro root=/dev/sd0 nomodeset
35. Unable to start X (10056679)
On some hardware, startup of the X environment may fail after
upgrading to Unbreakable Enterprise Kernel with following Error:
Fatal server error:
Cannot run in framebuffer mode. Please specify busIDs for all
framebuffer devices.
To workaround this issue reconfigure X using command "X -configure"
and use generated configuration file to start X environment.
36. Higher memory is required for crashkernel option
With the Unbreakable Enterprise Kernel a higher memory setting is
required for crashkernel option in /etc/grub.conf file. Booting with
crashkernel=128M@16M will result in following error:
crashkernel reservation failed - memory is in use
Minimum value for crashkernel option is 128M@32M. Based on the
system configuration a higher value may be required. If kdump
service loading fails increase the second value (32M). If the system
hangs or crashes with out of memory during dumping core increase the
first value (128M)
37. NFS: Error message displayed while mounting an NFS filesystem
(10070721)
The following error may be encountered while mounting an NFS
filesystem:
"SVC: FAILED TO REGISTER LOCKDV1 RPC SERVICE (ERRNO 97)."
This is an informative message and can be ignored
38. Unable to remove directory during boot
The following message during boot can be ignored as SELinux does not
allow to recreate the login subdirectory and hence directory should
not be removed for dovecot:
Error :
"rm: cannot remove `/var/run/dovecot/login': Is a directory "
39. Upgrade ocfs2 and oracleasm kernel modules
ocfs2 and oracleasm kernel modules will not be automatically updated
during upgrade of Oracle Linux 5 as package name for these modules
contains kernel version in it. These packages need to be updated
manually after the upgrade.
40. device-mapper-multipath package for Red Hat compatible kernel
Unbreakable Enterprise Kernel requires kpartx and
device-mapper-multipath RPMs that are newer than those provided for
the Red Hat compatible kernel. By default
device-mapper-multipath-0.4.9-64.0.10.el5 and
kpartx-0.4.9-64.0.10.el5 are installed. These updated versions of
kpartx and device-mapper-multipath are supported with the Red Hat
compatible kernel. The original RPMs for the Red Hat compatible
kernel (kpartx-0.4.7-63.el5 and
device-mapper-multipath-0.4.7-63.el5) are also included on the
Oracle Linux 5.11 ISO in directory Server/oracle_updated.
41. Workaround to use pirut and system-config-packages to manage packages
Pirut and system-config-packages cannot be used to manage, install,
and uninstall software packages. Follow the steps below to resolve
the issue
* Mount the DVD iso of the desired update of Oracle Linux Release
5.
Command for mounting the DVD media inserted in /dev/cdrom
# mount -r -o loop -t iso9660 /dev/cdrom /mnt
Command to mount iso image file
# mount -o loop /mnt
* Create yum repository configuration file
/etc/yum.repos.d/dvd.repo with following contents
[dvd]
name=OEL5DVD
baseurl=file:///mnt/Server
enabled=1
gpgcheck=1
gpgkey=file:///mnt/RPM-GPG-KEY file:///mnt/RPM-GPG-KEY-oracle
* Clear and update the yum cache
# yum clean all
# yum update
* Run pirut/system-config-packages to manage software packages
42. Conflicting packages
The following packages can not co-exist due to file conflict
* ant and ant17
* freeradius and freeradius2
* postgres and postgresql84
* samba and samba3x
* tcsh and tcsh617
* bind and bind97
* php and php53
* unixODBC and unixODBC64
* rsyslog and rsyslog5
* mysql, mysql51, mysql55 (only one can be installed on a given
server)
43. Unresolved dependency during update using up2date
If updating from Oracle Linux 5 GA or RHEL 5 GA using up2date, you
may encounter the following error:
Unresolvable chain of dependencies:
xen-3.0.3-64.el5 requires xen-hypervisor-abi = 3.1
This happens because a kernel-xen package update is needed by the
xen package, but 'kernel*' is part of the up2date pkgSkipList. To
get around this, add 'xen;xen-devel;' to the pkgSkipList line in
/etc/sysconfig/rhn/up2date and then run up2date. You can update the
xen and kernel-xen packages together later via 'up2date --force xen
kernel-xen'.
44. /ETC/MULTIPATH/WWIDS is missing after multipath-root install on OL5.11
When installing onto a multipath root disk, the file
/etc/multipath/wwids is not automatically generated at boot time,
because the root disk (which is itself on multipath) is still in
read-only mode at the time multipath services start up. This will
result in a warning message displayed to the console at boot time:
Cannot open file [/etc/multipath/wwids] readonly: No such file or directory
This message is a warning that can be ignored safely; it does not
affect the runtime operation of multipathd or
device-mapper-multipath. To squelch this warning message, after the
system has booted, it is possible to generate the missing wwids file
with this command (executed as root):
multipath -l
A future errata update should include a complete fix for this issue.
45. "Warning: at security/security.c:51 security_ops_task_setrlimit()" in
/var/log/messages after upgrading from Oracle Linux 5.10 to 5.11
This warning message is harmless and does not affect the functions
of the system. This message is generated to let developers of LSM
modules (security packages such as SELinux or comparable solutions
like AppArmor or Tomoyo) know about a quirk in the way LSM modules
implement protection for the setrlimit syscall in Oracle Linux 5.
46. Error: "FATAL: Could not load /lib/modules/2.6.18-363.el5/modules.dep:
no such file or directory"
This error may be seen when upgrading from 5.10 to 5.11 in systems
with over 4GB memory. This warning message is harmless and does not
affect the functions of the system.
47. Error: be2net 0000:c1:00.0: opcode 125-1 failed: status 4-0
This error may be seen when attempting to use the latest Emulex
OneConnect 10Gbps NIC cards. Please check with the vendor to verify
supported hardware on Oracle Linux 5.11
48. Error: mount.ocfs2: Transport endpoint is not connected while mounting
/dev/sda1 on /ocfs. Check dmesg for more information on this error
This error is generated when there is a race window in
dlm_do_recovery() between dlm_remaster_locks() and
dlm_reset_recovery. This has been resolved in this release.
49. Update rng-utils to provide rdrand instructions
Newer hardware, Ivy Bridge and later, have a rdrand instruction that
can be used to provide entropy for /dev/random, which keeps
/dev/random topped up. This is typically useful when applications
stall trying to read from /dev/random. This utility can be used with
systems using Intel processors enabled for this instruction. To
detect in UEK, use the following command:
"grep rdrand /proc/cpuinfo"
Note: Older kernels, such as the Red Hat Comptible Kernel (RHCK),
may not recognize rdrand in /proc/cpuinfo.
Configuring Updates for Oracle Linux 5 Update 11
Unbreakable Linux Network
Oracle Linux offers an option to keep your operating system up to date
with latest operating system patches using up2date or yum.
To register with ULN, use the following command:
# up2date --register
To access Linux updates via Unbreakable Linux Network, you must purchase a
Linux support subscription. For more information please visit
http://linux.oracle.com.
During ULN registration the server will be automatically registered with
two channels: the latest channel for the base repository as well as the
latest channel for the Unbreakable Enterprise Kernel Release 2. If you
have upgraded from a previous release and do not wish for the UEKR2 to be
installed, you will need to manually unsubscribe the server from this
channel.
The Unbreakable Linux Network includes Oracle-specific software packages,
for example Oracle's ASMlib userspace package and the Oracle Instant
Client. To enable access to these packages, login to the Unbreakable Linux
Network and subscribe to the "Oracle Software" channel.
Note: Prior to using up2date, import the RPM-GPG-KEY for Oracle Linux:
# rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY
Public Yum
Oracle now provides all errata and updates for Oracle Linux via the public
yum service. This service does not require a Linux support subscription,
but only includes updates to the base distribution and does not include
Oracle-specific software. To enable updates via public-yum, please visit
http://public-yum.oracle.com and follow the instructions on that website.
By default, all new installs of Oracle Linux 5 Update 11 are automatically
configured to use the public-yum update service. No modification is
required to use this service. The public-yum service is automatically
disabled when a server is registered with the Unbreakable Linux Network.
Installation Media
Note: Oracle Linux 5 Update 11 now contains two distinct repository
sources on the installation media. To configure yum to use the
installation media as a yum source, create the following file
/etc/yum.repos.d/Media.repo with content similar to the following:
[ol5_base_media]
name=Oracle Linux 5 Update 11 Base Media
baseurl=file:///media/Server
gpgcheck=0
enabled=1
[ol5_uek_media]
name=Oracle Linux 5 Update 11 UEK Media
baseurl=file:///media/UEK2
gpgcheck=0
enabled=1
You may need to adjust the baseurl parameter to match where you mount the
ISO media on your server.