J4400, linux and heartbeat failover
Hi all
I am contemplating getting a sun J4400, with two x4150 servers to make a nfs server which has failover to a standby server in case the primary fails, using Linux and heartbeat
I have read that you can connect two servers to a J-series array, but I have the following questions:
1. Does the J4400 have any disk management built-in or must all be handled by the raid adapters on the connected servers.
2. If both servers are connected to the SAS connections, do they both have access simultaneously to the drives, or is one blocked from access at the physical level?
3. If they are blocked, are the raid adapters in the two servers aware of each other to ensure that only one server can see the drives at any time.
4. If they are blocked, if the primary server fails, how would its raid card 'release' the drives for the other one to be able to take them over.
Anything else I should be aware of for this scenario?
Hi ckoeber,
Hyper-V has support most of Linux distribution but not all because it’s have so many distribution, until now the Gentoo Linux not in the support list, you can refer the following
KB to know more about the detail:
Linux Virtual Machines on Hyper-V
http://technet.microsoft.com/en-US/library/dn531030
Hope this helps.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.
Similar Messages
-
Gentoo Linux and Microsoft Failover Clusters / Hyper-V
Hello,
Hoping there are a few people on the boards familiar with running Gentoo Linux guests under Microsoft FailOver Cluster / Hyper-V hosts.
I have four Gentoo Linux guest VMs (running kernel 3.12.21-r1) running under the Microsoft Failover Cluster system with Hyper-V as the host. All of the Hyper-V drivers are built into the kernel (including the utilities and balloon drivers) and generally they
run without issue.
For several months now, however, I have been having strange issues with them. Essentially they stop responding to network requests after random intervals. However, these intervals aren't a few minutes or hours from each other; more like days or even weeks before
one of them will stop responding on the network side.
The funny thing is that the VMs themselves on the console side still responds. However, if I issue a reboot command on the externally non-responsive VM, the system will eventually get to a stage where all of the services are stopped and then hangs right after
the "mounting remaining system ro" line (or something like that).
The Failover Cluster Manager then reports that the system is "Stopping" but the system never reboots.
I have to completely restart the HOST system so that either (A) the VM in question transfers to another host and starts responding again or (B) when the HOST comes back up I can work with the VM again.
This *ONLY* happens on the Gentoo Linux guest VMs and not my Windows VMs.
Wondering if anyone has hints on this.
Thank you for your time.
Regards, Christopher K.Hi ckoeber,
Hyper-V has support most of Linux distribution but not all because it’s have so many distribution, until now the Gentoo Linux not in the support list, you can refer the following
KB to know more about the detail:
Linux Virtual Machines on Hyper-V
http://technet.microsoft.com/en-US/library/dn531030
Hope this helps.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place. -
UnixODBC connects, but won't select - 64bit Linux and client 10.2.0.1.0
ODBC connects, but won't select - 64bit Linux and 64 bit Oracle instant client 10.2.0.1.0, full install (all files but basiclite).
ODBC can connect to an Oracle database, but cannot describe or select.
sqlplus can connect and select.
Also, ODBC can connect and select using a mysql database.
At end is ODBC trace log, odbcinst.ini and odbc.ini
Using the isql utility from unixODBC version 2.2.10, I get the following
## working tnsnames.ora is located
$ export TNS_ADMIN=/usr/share/oracle/OraHome_1/network/admin
$ LD_LIBRARY_PATH=/usr/lib64/oracle isql -v TESTDB foo bar
| Connected! |
| |
| sql-statement |
| help [tablename] |
| quit |
| |
SQL> describe dual
[IM003][unixODBC][Driver Manager]Specified driver could not be loaded
[ISQL]ERROR: Could not SQLAllocStmt
SQL> select count(*) from dual;
[IM003][unixODBC][Driver Manager]Specified driver could not be loaded
[ISQL]ERROR: Could not SQLAllocStmt
SQL>
Trace appended at end.
System Details
SuSE 9.3 64 bit, 2x Xeon, 8Gb RAM, latest SuSE kernel 2.6.11.4-21.9-smp
A 64bit full client(10.1.0.3.0) is installed in /usr/share/oracle/OraHome_1, where the tnsnames.ora file is located (in network/admin)
The 64 bit instant client is installed in /usr/lib64/instantclient_10_2, pointed to by soft-link /usr/lib64/oracle
I also have a 32bit instant client, which is needed by OpenOffice
From a shell with unset ORACLE_HOME, and with no Oracle lib in the ld.config path, all 3 versions are able to connect, and describe dual and select (*) from dual;
export TNS_ADMIN=/usr/share/oracle/OraHome_1/network/admin
# 10.2 64 bit instant client
LD_LIBRARY_PATH=/usr/lib64/oracle /usr/lib64/oracle/sqlplus foo/bar@TESTDB
# 10.2 32 bit instant client
LD_LIBRARY_PATH=/usr/lib/oracle /usr/lib/oracle/sqlplus foo/bar@TESTDB
# 10.1 64 bit full client
LD_LIBRARY_PATH=/usr/share/oracle/OraHome_1/lib /usr/share/oracle/OraHome_1/bin/sqlplus foo/bar@TESTDB
#### LOG AND INI FILES
### odbcinst.ini
[OracleODBC-10g]
Description = Oracle ODBC driver for Oracle 10g
Driver = /usr/lib64/oracle/libsqora.so.10.1
Setup = /usr/lib64/unixODBC/liboraodbcS.so.1
FileUsage =
CPTimeout =
CPReuse =
[ODBC]
Trace = Yes
TraceFile = /tmp/sql.log
ForceTrace = No
Pooling = No
### odbc.ini
[TESTDB]
Application Attributes = T
Attributes = W
BatchAutocommitMode = IfAllSuccessful
CloseCursor = F
DisableDPM = F
DisableMTS = T
Driver = OracleODBC-10g
DSN = TESTDB
EXECSchemaOpt =
EXECSyntax = T
Failover = T
FailoverDelay = 10
FailoverRetryCount = 10
FetchBufferSize = 64000
ForceWCHAR = F
Lobs = T
Longs = T
MetadataIdDefault = F
QueryTimeout = T
ResultSets = T
ServerName = TESTDB
SQLGetData extensions = F
Translation DLL =
Translation Option = 0
Here is the output from ODBC's trace of the isql session
[ODBC][27847][__handles.c][444]
Exit:[SQL_SUCCESS]
Environment = 0x507700
[ODBC][27847][SQLAllocHandle.c][346]
Entry:
Handle Type = 2
Input Handle = 0x507700
[ODBC][27847][SQLAllocHandle.c][464]
Exit:[SQL_SUCCESS]
Output Handle = 0x507ce0
[ODBC][27847][SQLConnect.c][3527]
Entry:
Connection = 0x507ce0
Server Name = [TESTDB][length = 6 (SQL_NTS)]
User Name = [foo][length = 3 (SQL_NTS)]
Authentication = [bar][length = 3 (SQL_NTS)]
UNICODE Using encoding ASCII 'ISO8859-1' and UNICODE 'UCS-2LE'
[ODBC][27847][SQLConnect.c][4101]
Exit:[SQL_SUCCESS]
[ODBC][27847][SQLAllocHandle.c][511]
Entry:
Handle Type = 3
Input Handle = 0x507ce0
[ODBC][27847][SQLAllocHandle.c][641]Error: IM003
[ODBC][27847][SQLError.c][424]
Entry:
Connection = 0x507ce0
SQLState = 0x7fffffffd750
Native = 0x7fffffffd748
Message Text = 0x7fffffffd760
Buffer Length = 500
Text Len Ptr = 0x7fffffffd74e
[ODBC][27847][SQLError.c][461]
Exit:[SQL_SUCCESS]
SQLState = IM003
Native = 0x7fffffffd748 -> 0
Message Text = [[unixODBC][Driver Manager]Specified driver could not be loaded]
[ODBC][27847][SQLError.c][424]
Entry:
Connection = 0x507ce0
SQLState = 0x7fffffffd750
Native = 0x7fffffffd748
Message Text = 0x7fffffffd760
Buffer Length = 500
Text Len Ptr = 0x7fffffffd74e
[ODBC][27847][SQLError.c][461]
Exit:[SQL_NO_DATA]
[ODBC][27847][SQLError.c][504]
Entry:
Environment = 0x507700
SQLState = 0x7fffffffd750
Native = 0x7fffffffd748
Message Text = 0x7fffffffd760
Buffer Length = 500
Text Len Ptr = 0x7fffffffd74e
[ODBC][27847][SQLError.c][541]
Exit:[SQL_NO_DATA]
[ODBC][27847][SQLAllocHandle.c][511]
Entry:
Handle Type = 3
Input Handle = 0x507ce0
[ODBC][27847][SQLAllocHandle.c][641]Error: IM003
[ODBC][27847][SQLError.c][424]
Entry:
Connection = 0x507ce0
SQLState = 0x7fffffffd750
Native = 0x7fffffffd748
Message Text = 0x7fffffffd760
Buffer Length = 500
Text Len Ptr = 0x7fffffffd74e
[ODBC][27847][SQLError.c][461]
Exit:[SQL_SUCCESS]
SQLState = IM003
Native = 0x7fffffffd748 -> 0
Message Text = [[unixODBC][Driver Manager]Specified driver could not be loaded]
[ODBC][27847][SQLError.c][424]
Entry:
Connection = 0x507ce0
SQLState = 0x7fffffffd750
Native = 0x7fffffffd748
Message Text = 0x7fffffffd760
Buffer Length = 500
Text Len Ptr = 0x7fffffffd74e
[ODBC][27847][SQLError.c][461]
Exit:[SQL_NO_DATA]
[ODBC][27847][SQLError.c][504]
Entry:
Environment = 0x507700
SQLState = 0x7fffffffd750
Native = 0x7fffffffd748
Message Text = 0x7fffffffd760
Buffer Length = 500
Text Len Ptr = 0x7fffffffd74e
[ODBC][27847][SQLError.c][541]
Exit:[SQL_NO_DATA]We are having similar issue. Could you please let me know how to resolve this issue. If using 32-bit driver is the only solution, please provide the URL to download this.
Linux gahfndev02 2.6.9-42.0.3.ELsmp #1 SMP Mon Sep 25 17:24:31 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux
SQL*Plus: Release 10.2.0.1.0 - Production on Mon Jan 22 16:56:41 2007 -
OmniPortlet, Linux and graphs a problem?
I have the OmniPortlet working under Linux and made a tab report against emp. Worked fine.
I then set the style to chart instead. Now I cant press OK on the portlet definition page or edit or view the page. I just get "Internal server error".
In the portalTools application log file i get:
at com.evermind[Oracle9iAS (9.0.2.0.0) Containers for J2EE].util.ThreadP
oolThread.run(ThreadPoolThread.java:64)
10/17/03 2:39 PM omniPortlet: [id=1066394357837ApplicationServerThread, instance
=114401_OMNIPORTLET_387111] JDBCUtils.getMetadata QueryStringAfterParamSubstitut
ion=select * from scott.emp
10/17/03 2:39 PM omniPortlet: [id=(null), instance=(null)] WARNING: Request has
exceeded its warning timeout of 20000ms. Request details are: id=1066394357837Ap
plicationServerThread providerId=387111 portletId=100 portletName=OmniPortlet po
rtletInstance=114401_OMNIPORTLET_387111 user=PORTAL
10/17/03 2:40 PM omniPortlet: [id=(null), instance=(null)] ERROR: Request has ex
ceeded the kill timeout of 80000ms - trying to interrupt the request, request de
tails are: id=1066394357837ApplicationServerThread providerId=387111 portletId=1
00 portletName=OmniPortlet portletInstance=114401_OMNIPORTLET_387111 user=PORTAL
In the portal application log file there are lots of these:
10/17/03 2:34 PM portal: FetchGroup caught uncaughtException=java.lang.ThreadDea
th in thread name=content-fetcher40, starting a new fetcher. 27 total threads in
this group. Parent Groups : applicationServerThreadGroup=76, main=114, system=1
20, end.
10/17/03 2:40 PM portal: id=1066394357837ApplicationServerThread Stall Timeout r
eached. Interrupting Fetcher name=content-fetcher48 label=webPortlet url=http://
ska57.data.skanska.se:7778/portalTools/omniPortlet/providers/omniPortlet time=51
260ms timeout=51000ms process=Dispatching
10/17/03 2:40 PM portal: HeartBeat retrying to stop a Fetcher name=content-fetch
er48 timeout=51000ms process=Dispatching
10/17/03 2:40 PM portal: FetchGroup caught uncaughtException=java.lang.ThreadDea
th in thread name=content-fetcher48, starting a new fetcher. 27 total threads in
this group. Parent Groups : applicationServerThreadGroup=76, main=114, system=1
20, end.
Any ideas?
I believe I hav DISPLAY set up right in the right conf-files (but who nows)...
Kind regards
Tomas Albinsson
Stockholm, SwedenSorry for the delay, I couldn't access the server any sooner.
Which version of OmniPortlet are you using ?Version: 9.0.2.6.1 June 27 2003
In the config page it says that DISPLAY is not configured.
I've set it for OC4J_Portal in $MID_HOME/opmn/conf/opmn.xml. I've also set it in $MID_HOME/portal/902dcm/opmn.xml and in $MID_HOME/portal/9023dcm/opmn.xml.
I ran dcmctl updateConfig and restarted the midtier but it's still "not configured" in the config page.
The application.log also complain about the DISPLAY not being set.
Any suggestions? Are there other files?
My sysadmin has said DISPLAY should be localhost:1.0
The data is just ename and salary from scott.emp but it must be the DISPLAY that's causing my problems.
Tomas -
Help, new to Linux and need help installing 8i
I am new to Linux and some of this stuff..
Yet,I have gotten the JDK116_v5 installed and working on my box.
I have cut a cd for Oracle8i and need help..
I have also recopiled my kernal as well...
Does any one know where I can get help...
nullAl Pivonka (guest) wrote:
: I am new to Linux and some of this stuff..
: Yet,I have gotten the JDK116_v5 installed and working on
: my box.
: I have cut a cd for Oracle8i and need help..
: I have also recopiled my kernal as well...
: Does any one know where I can get help...
Try http://www.akadia.com/html/dod-frame.html for Redhat.
http://www.suse.de/~mha/oracle/ for SuSE
Also peruse these
http://www.akadia.com/html/dod-frame.html
http://jordan.fortwayne.com/oracle/
Colin.
null -
Connection failover and transaction failover
Connection failover and transaction failover
I need to know more about a behavior in a RAC cluster. When a node goes down that is executing one of my transaction through JDBC , does the connection and transaction failover to a new node without me needing to restart tran or reconnect ?
Please provide some insight
ThanksTransactions are NOT automatically rolled back. The application must do this otherwise the session will get disconnected.
If you code TAF, all sessions will failover to the backup connection. You can specify that select statements are automatically re-executed after the failover. Insert/update/delete transactions must be explicitly rolled back and resubmitted by the application.
IF you are using an ORacle Connection pool, the connection pool will automatically cleanup connections to the failed instance, abort inflight transactions. The application will either retry or it will propagate the error to the end user.
See the whitepaper on the OTN RAC page (otn.oracle.com/rac) Workload Management with Oracle RAC for more information. -
This is not a question, but rather a personal guide that has proved to be running successfully.
I would like to thank numerous sources, including Christopher Murphy's suggestions at:
Re: Repairing Boot Camp after creating new partition
Before proceeding, there are certain concepts needs to know:
Why Boot Camp does NOT allow further partitioning of drives after Windows has installed?
Answer: Because the way Apple configures the Mac to be recognized as non UEFI capable system on Windows.
Quote from Christopher Murphy based on the above line:
However, Windows on Macs right now use CSM-BIOS mode in Mac firmware that presents BIOS to Windows rather than EFI. Windows thinks it's on a BIOS computer, and therefore mandates the use of MBR for boot disks, rather than GPT. So that's why we have this hybrid MBR+GPT approach on Mac with Windows on it. You inherit the limitations of MBR, which is four primary partitions.
So what does it means?
It means that OSX + EFI + Recovery HD + Boot Camp partition = 4 primary partitions and thus any attempt to modify the disk will render booting issues of either system.
For more info on GPT (GUID Partition Table disks VS Master Boot Record or MBR in short, you may visit: http://msdn.microsoft.com/en-us/library/windows/hardware/dn640535%28v=vs.85%29.a spx)
So, how to overcome it?
The general guideline is to install ALL GPT ready OS first then create a Data partition, before installing Windows (Which is again, NOT supported GPT due to EFI configuration by Apple where end-users are not able to modify it).
Interestingly, since Mac Pro 2013 Late supports only Windows 8 and above, thus it is not known if this CSM-BIOS applies to it or not.
Do take note that GPT disks in Windows can only be booted when the system meets the 2 requirements:
http://msdn.microsoft.com/en-us/library/windows/hardware/dn640535%28v=vs.85%29.a spx#gpt_faq_win7_boot
1) Windows x64 version (Which is a must for newer Macs. If you cannot go to Boot Camp 5, then you need Windows 7 x86 or 32bit version)
2) UEFI system. However, Windows sees all Macs (With the possibility of Mac Pro 2013 Late is an exception. To be determined) as BIOS, or rather NON-UEFI system.
In short, booting on GPT disks is not possible for Mac in Windows.
Summary,
It is tested that a combination of the following will not work:
- OSX + Windows + Linux
- Windows + OSX + Linux
- Windows + Linux + OSX
Usually it can create the system un-bootable or OSX refused to install due to the system does not recognize such partitions and / or Disk Utility refused to format a free space. An example screen-shot is provided below:
The error message is shown as
Title: "Failed to erase volume" Message: "Failed to wipe volume, as an error occurred: MediaKit has reported that the device does not have enough free space to execute the requested operations."
The second thing is about the preparations we need.
1) 1X Windows 7 or 8 DVD or USB thumbdrive
1A) If you uses a DVD to install, you will need another thumbdrive to load the BootCamp drivers for Windows as well as may requires an external DVD drive for newer Macs
2) 1X Linux DVD of your choice. Personally I choose Fedora 20.
So ready? Let's go.
1. Using Disk Utility, shrink the OSX's partition size to what is needed. For me, I give OSX 150GB. Do NOT create any new partition.
Disk Utility should see something like below whereby only OSX partition is left with desired disk space. The remaining space are to be unused disk space for the moment.
Note: Click on the top most item that should start with the size of your HDD / SSD. Then clicked on "Partition" and specify the desired OSX size. Hit "Apply" after that.
2: Download Boot Camp drivers only via Boot Camp Assistant. The USB thumbdrive shall be used later after Linux's installation.
Boot Camp Assistant should see this:
I have only selected "Download latest Windows Support Files from Apple"
3. Insert Linux DVD, reboot Mac into EFI mode (The left most first "EFI mode").
Note 1: Before rebooting, please plugged in an Ethernet adapter because Wi-Fi drivers is not installed.
Note 2: For Thunderbolt adapters, it must be plugged in before reboot as hot-swapping is not supported under Linux. More on the tips at the end of this article.
Note 3: Press and hold "Option" after the screen turns black. Release Option key after you see the image as below:For the unfortunate part that did not make it on time to edit the images:
9. Install the Windows Support software from your CD/USB drive to gain full functionality of your computer. Reboot and go to Windows again.
Note 1: You may choose to eject disc at this point of time. For Apple SuperDrive users, you will need to wait until the drivers (i.e. Boot Camp support files) is installed and rebooted before ejecting is reasonably possible (As I failed to figured out how to right click without the drivers)
Note 2: Unlike Windows 7 on KBase article TS4599 Keyboard/trackpad inoperative, black screen, or alert messages when installing Windows 7, USB stick can be plugged in after the Windows installation is done. This is because Windows 7 (And probably Windows 7 with SP1 DVD) does not have a built in USB 3 drivers when it was released back in 2009 where USB3 has not arrived then.
Note 3: Due to TPM, Bitlocker is not supported without the use of thumbdrives.
10. Using Disk Management to determine the given drive letter for the DATA partition (DO NOT DELETE and RECREATE partition or else you can goodbye to booting Linux and OSX). Disk Management will not allow you to format it as exFAT / FAT32 in graphical way.
Note: You may remove or modify some of the disk letters in Disk Management. However, do NOT remove / modfify the drive letter for the partition with 200MB size in HFS. This is because it will disallow booting of Linux and neither could Windows nor OSX can do anything EXCEPT to reinstall Linux only.
11. Open Command Prompt in Administrator Mode (Important!!), and key in the following command:
format F: /FS:exFAT
Give this volume a label after it has successfully formatted before hitting "Enter" again.
Note: Mine Data partition was assigned as F drive. Please make necessary adjustment to "F:" should your Data partition is assigned to other letters.
12. After that, Setup your Data partition structure as you like.
Tip: Minimally create the important folders such as:
- Music
- Documents
- Movie (Videos)
- Downloads
- Pictures
All these folders are commonly used by the 3 OSes. I do NOT recommend changing of /home (OSX and / or Linux) and / or user home directory (Windows) either partially or as a whole.
This is because of compatibility issue.
On a side note, iTunes Media Library used in OSX and Windows are NOT able to be use interchangably due to hard-coded path used.
13. Useful troubleshooting in Fedora / Linux:
With references to these:
http://chaidarun.com/fedora-mbp
http://anderson.the-silvas.com/2014/02/14/fedora-20-on-a-macbook-pro-13-late-201 3-retina-display/
http://unencumberedbyfacts.com/2013/08/16/linux-on-a-macbook-pro-101/
I would like to highlight a few important points:
1) Wi-Fi driver:
http://rpmfusion.org/Configuration
Note 1: The sound driver should be installed at Out of Box Experience. However, the Wi-Fi is not.
Note 2: Install both free and non-free repository. By the way, some other software like VLC can only be found after the Free Repository is installed.
Search for "akmod-wl" in Gnome-Package-Installer in order to install Wi-Fi drivers
Note 3: For those who do not have Ethernet adapters and their Mac does NOT have a built-in Ethernet port, it is recommended to get one. This is because Fedora 20 does not have a good support for iPhone USB tethering. Unsure for Andriod / Blackberry / Windows Phone users.
2) Grub Menu:
It will show several options to boot into OSX, even of the capability to boot into x86 or x64 mode. However, neither of them is bootable except Linux and the rescue.
Hence, it is recommended to remove the items by hand in this file:
/boot/efi/EFI/fedora/grub.cfg
Command to be used:
"sudo gedit /boot/efi/EFI/fedora/grub.cfg"
Parts to be removed:
- For any extra kernels, delete the target entry by locating the line "menuentry" under "/etc/grub.d/10_linux" sector to one line above the next "menuentry".
It is recommended to keep one main kernel, and one recovery at the minimal.
- For other OS, delete all the entry (Since neither it can works) under "/etc/grub.d/30_os-prober" sector without removing the lines starts with ###.
Auto Mount exFAT partition:
- After installing extra packages for exFAT support (Since it is not supported by Fedora 20 from a default installation), you may wish to edit "/etc/fstab" in order to mount the exFAT partition during boot time.
Command to be used:
"sudo gedit /etc/fstab"
Add the following line in gedit:
UUID=702D-912D /run/media/Samuel/DATA exfat defaults 1 2
Note 1: For DATA partition, OSX & Boot Camp partition, Fedora defaults mounts under: "/run/medua/<Username with case sensitive>/<Partition Label Name>"
Note 2: UUID is unique ID. You can find out the UUID by:
Step 1: First determine the DATA partition number:
"sudo gdisk /dev/sda"
Step 2: Determine the UUID of this partition number:
"sudo blkid /dev/sda8"
Reference 1: http://manpages.courier-mta.org/htmlman5/fstab.5.html
Reference 2: http://liquidat.wordpress.com/2007/10/15/short-tip-get-uuid-of-hard-disks/
3) Overheating CPU
Solution is to issue the following command in Linux terminal: su -c "echo -n 1 > /sys/devices/system/cpu/intel_pstate/no_turbo"
4) System resumes immediately after suspend
Solution is to issue the following command in Linux terminal: su -c "echo XHC1 > /proc/acpi/wakeup"
5) What does not works well out of box:
- Both GNOME and KDE's fonts are too small to be readable for out of box experience. Additional configuration is a need. (Some of the info can be found on "More Tips" later)
- Thunderbolt hotplugging is NOT supported under Windows and Linux so far. Neither FaceTime HD camera works as well.
- The red light in Headphone jack is always on. I do not have luck in switching off the light without losing the sound.
Note 1: It is determined that the module "snd_hda_intel" is used by both cards (HDMI and normal output)
Note 2: It is also known that blacklisting it can switch off the redlight at the price of muting the system.
Note: Based on this article, http://support.apple.com/kb/TS1574
A Mac (Except Mac Pro) needs servicing when there is a red light while the system fails to detect internal speakers. However, this article does NOT applies to this issue.
5A) More Tips:
Install gnome-tweak-tool for more customization
Search for: "gnome-package" to install:
Install Gnome Package Installer for advanced package repository
Install Gnome Package Updater for advanced updates to be install (Whereby Fedora's App Store alike might not show the relevant updates)
14. Verify if disk is still GPT:
Use Gdisk to determine if the disk is pure GPT:
http://ubuntuforums.org/showthread.php?t=1742682
Command: sudo gdisk -l /dev/sda (The entire hard drive)
You should see the MBR is "Protective" instead of anything else.
15. Congrats, the system is ready for triple boot. (I forgot to eject my Windows DVD when the photo was taken)
Note 1: You cannot set the default startup disk in Linux due to the lack of Boot Camp Control Panel in Linux.
Neither is changing startup disk recommended in Windows due to the inability to display correctly.
For me, I click "Cancel" whenever I am on this tab (Feel free to make other Boot Camp adjustments in other tabs).
Only OSX I know that can show the startup disk options correctly.
Note 2: For some reason, OSX likes to auto mount the EFI partition everytime it boots up. It is not known to have any issue for ejecting other disks or mounting disks via Disk Utility.
Note 3: It is not determined if any Firmware or System upgrades will cause issues. It is only known that all 3 OS's regular updates should not be an issue.
System Updates excludes Mac OSX 10.9.3 updates to OSX 10.9.4 type as I had done it on a OSX 10.9.4 Mac or Windows 8.1 to Windows 8.1 Update 1 since my Windows DVD comes with Update 1.
System Upgrades refers to OSX Mavericks to Yosemite, Fedora 20 to Fedora 21, Windows 8.1 Update 1 to Windows 8.2 / Windows 9 for that matter.
Note 4: Reset SMC and / or PRAM will NOT affect your ability to boot any of the OS (OSX, Recovery HD, Fedora & Windows 8)
Yup, that is it! -
[SOLVED-partly] Linux and no internet connection
Well, since mid November I have nothing but problems with my Arch Linux machine. I can't get any internet connection on that machine. I have a network at home with 2 windows machines (XP & Vista), a Windows 2003 server running as an Exchange server and DNS server and Domain controller and ps3, xbox 360 and Wii. The two windows machines run on a static IP, the ps3, xbox 360 and Wii run on dhcp. All machines run on LAN through a switch except the Wii it runs on wireless. Now my Arch Linux machine also runs on static IP set up as described in the installation guide via rc.conf, hosts and resolv.conf. As mentioned earlier since mid November I haven't been able to get any internet connection on that machine. I haven't changed anythnig in my setup on the machine or the network. when i start the machine for the first time during a day I actually do the get internet connection and network connection but if I restart then I lose it. I am not able to ping the gateway or the DNS server. I can get interrnet back again I turn off the machine and turn off the motherboard and let the machine cool off for 20 minutes. Then if I turn it on again I have internet again but if i'll have to restart then the problem reappears.
After two weeks with this issue I decided to get network card but that didn't help either I still had the problem. Then I simply bought a new machine (DELL Studio) and did a fresh installation of Arch and STILL the problem exists and it is driving me FREAKING CRAZY NOW!!! I tried to my machine on dhcp but still the same issue. internet on first boot, reboot no internet or network, shutdown machine and motherboard (unplug machine) --> internet again after waiting 20 minutes. None of my other machines running windows or the consoles have problems getting internet. I've tried to run distros on the machines (Ubuntu Live CD) but I have the same problem. I am very close to going back to windows and I REALLY don't want to (been using Linux since 2003) but this problem here is a show stopper/EPIC FAIL. I am very very happy with Arch Linux and really don't want to change distro either. I need suggestions now on what I can look for in order to find the problem. I've already changed network cards, bought a new machine and even bought new switch because we thought it might be the switch causing the problems (8 port switch) because turning off the switch would give me my internet back. Again it is only my Linux machine that is having the connection problems none of the other machines have those.
PLEASE HELP!!!
Kind Regards
André
Last edited by fettouhi (2008-12-19 07:27:01)Well, I celebrated a bit to fast after 30 minutes or so I lost internet connection but not by restarting. I didn't use the computer for like 30 minutes and when I did tried to open a browser nothing happended. I tried then to ping the gateway and the server but couldn't reach them. So I turned off the computer completely for 20 minutes and then I started again and chenged the DNS address from my server to the DNS addresses I get directly from my ISP. So I'm going around the server now and seems to work for now. This morning I could start the machine and restart it 2 times and every time I had internet. Hope this solves it for now, still don't understand what the problem is though.
Regards
André -
Share files between Arch Linux and XP Home
Hi, I have an Arch Linux desktop and a XP Home Laptop both connected to a Billion 7401 ADSL Router to get to the internet. If I am using any computer sometimes I have a need to use files from the other one, and from an external HDD connected to the XP laptop. I have been googling for the last 3 weeks but could not find a concrete solution to this issue, maybe because I don't understand much about networking or p2p, and samba. Looks like I have to spend more money on either another computer to be setup as a server or on a router or hub or switch? But I thought my Billion Router is already a router? I wonder if you can please help me to solve this problem or point me to a good link? Thanks a lot.
SSHFS is another more Linux native option for sharing files (and it can be compatible with XP too using special programs).
http://en.wikipedia.org/wiki/SSHFS
http://wiki.archlinux.org/index.php/Sshfs
As I understand it XP Home uses simple file sharing which can be really insecure depending on your needs. Once when I ran a computer with Linux and was needing to set up a samba share I discovered massive issues since (at the time) I was connecting regularly over a shared wireless network among untrusted persons. I ended up looking into using SSH tunneling to overcome the issues associated with XP Home's Simple File sharing and that is when I came across SSHFS.
Whatever you do make sure to read this about XP Home's "Simple Filesharing"
http://www.centerlineit.com/index.php?v … q&Itemid=9
It's important you understand it.
Last edited by davidm (2010-04-12 04:01:34) -
[SOLVED]Arch Linux, and Windows 8.1 Dual Boot issue
Hi guys. I recently bought a new laptop, and decided to run Arch Linux and Windows 8.1. I installed Windows 8.1 first as recommended by the beginners guide, and then installed Arch Linux. I made sure UEFI was enabled in my BIOS, and made sure everything was on a GPT partition. The install itself went fine. My laptop loads grub, and Arch Linux shows up and boots, but there is no option to boot into Windows 8.1. The only way I can boot into Windows 8.1 is by accessing my motherboard, and choosing to launch the windows boot manager instead of the grub launcher. How can I get Windows 8.1 to show up in grub? Thanks in advance guys.
Last edited by Painguy (2014-08-20 20:19:37)Painguy wrote:
-----------Edit------------------
Yeah just ran this after installing os prober
grub-mkconfig -o /boot/grub/grub.cfg
and it works now. Sorry for the crazy posts guys. Thanks for the suggestions and help.
Yeah I'm sure I'm doing something wrong lol. I did not install OS-Prober. I think that's where the issue is. I'm missing the menu entry in grub.cfg right? Do I just run os prober or do I have to manually edit grub.cfg.
If that's not the case then here is what I did up until now. What I did was start with a blank SSD drive. I used cgdisk to make the disk use a GPT partitioning scheme. I installed windows 8.1 and checked in windows to make sure it boots into UEFI-GPT mode and it does. I then installed arch linux using the beginners guide. I made sure to use cgdisk to create any extra partitions, and installed GRUB to the efi partition that windows had created ( I did not format this partition ). I then finished the installation and rebooted, and Grub only shows arch linux. I don't think I'm dealing with anything MBR related. I made sure I used the GPT partitioning scheme....i think lol.
All you need to do is run os-prober then run grub-mkconfig. It should pick up Windows at that point. -
How to set owner-only access file permissions both on Linux and Windows
Hi everybody.
I have the following problem. I need to store some private user information in file system. So I need to set owner-only access permissions for some directory in user home. I did not find API for doing this. As I understand this is platform specific thing. Could anybody tell me how can I do this both on Linux and Windows?
Thank you in advance.More ideas just came back to me (of something I did before)
Each OS requires a different control.
For Windows you will need to set the .policy file for each user (a pain if you have more than a dozen of clients) granting access (R or RW) to files/directories.
Then you have to write some native code (access via JNI) to access/modify your authorization.
A more professional solution that I used was J-Integra (other similar tool exist).
Basically it is a bridge between Java and COM. It magically give you access to the COM API from Java (and vice versa).
In my case it was to read/write/modify Winword documents transfered between PC and server.
From memory you have to run the com2java.exe to build the bridge (classes in Java language) between the 2 families. Compile those classes and you have a "driver" for the COM (Microsoft Objects).
Here I must confess my ignorance on Microsoft.
Those COM objets must give you some easy/integrated access to the API for LDAP or Microsoft Active Directory Service (for centralize control with more complex setup). -
Installing linux and unix on my macbook pro without using vmware
I was browsing through the forum and bumped into a topic where the best advice for installing linux application is the following:
http://macdevcenter.com/lpt/a/7073
However, I have not tested this out therefore I am pretty reluctant to put this on my laptop which is currently running MAC OS X 10.5.8. (4gb ram). If anyone have done this please let me know.
1) My question: Is this a reliable method to run linux applications on MAC OS natively using the x11 from Apple?
Note: I have vmware and I personally don't prefer booting a separate OS on my computer just to use one or two apps. However if that is the only solution I already have ubuntu running on my vmware. Also I wanted to completely wipe off my vmware and the ISO images (ubuntu and win xp) to free up the space in my hard drive. If I have to use ubuntu which may be a "safer solution" than run linux applications on my hard drive then I will stick to the vmware method.
If someone could give me some insight in this topic then I would greatly appreciated their help.
p.s. I want to install xilinx web-pack and other useful softwares that are only available in linux, ubuntu and win xp/vista/w7. My goal is to completely transform my laptop from dual booting ubuntu and win xp to just run mac snow leopard (in the near future).
Thanks in advance,
Pirakalan S.
Message was edited by: Pirakalan S.Basically I want to run linux and unix applications without running vmware on my mac os x. I heard there is a way to use x11 and FinkCommander (http://finkcommander.sourceforge.net/) application. However, I am unable to figure out how to install programs such as xilinx ise (http://www.xilinx.com/ise/logicdesignprod/foundation.htm) on my MacBook Pro using FinkCommander. In addition, xilinx ise runs on linux and windows however not mac.
In simple words I want to solely use Leapord (not snow leapord) to run applications such xilinx ise (which is only available on windows platform or linux).
I recently shifted from windows xp platform to mac and I rarely use vmware after making the shift. Therefore, I am trying to find a solution where I don't require vmware at all, my plan is to remove vmware from my hard drive.
I just restated what I stated in the previous post in a simpler manner, sorry for any miscommunication on the earlier post. I am looking for a step by guide to install linux applications on my mac. I am at a process of learn linux at the moment so I am kind of slow when it comes to linux and mac. Especially when it comes to installing using command line not GUI.
I just want to know if there is a solution out there for running linux based applications to run on my mac. -
New Note 790189.1 - Oracle Clusterware and Application Failover Management
Hi all,
please, note the newly created Metalink Note 790189.1 - Oracle Clusterware and Application Failover Management if you want to use Oracle Clusterware as a general purpose cluster solution. The note intends to clarify and to explain the current situation in regards to the supportability of applications managed by Oracle Clusterware.
In environments not including Oracle RAC, Oracle Clusterware still provides the level of high availability that is commonly known to be achievable for applications and databases managed in (failover) cluster environments. These environments can include Oracle Single Instance Databases, Oracle Application Servers, Oracle Enterprise Manager components, third party databases, or any other kind of application. (For more information on Oracle Clusterware 11g in general, please, refer to [Oracle Clusterware homepage|http://otn.oracle.com/clusterware].)
Metalink Note 790189.1 - Oracle Clusterware and Application Failover Management is tightly integrated with the information on application failover management available on the [Oracle Clusterware homepage|http://otn.oracle.com/clusterware] and discusses typical questions like
* Terminology
* Script supportability and preconfigured agents
* How to prove that action scripts work outside of Oracle Clusterware
* Supportability of the Oracle Database Single Instance example scripts
* How do I know whether a certain script is supported as a preconfigured agent?
Metalink Note 790189.1, however, does not change the level of support that has been introduced for these kind of configurations as of Oracle Database 10g Release 2: "Generally, Oracle does not support action scripts in the strict terms of supporting individual code fragments. Oracle fully supports the integration of individual action scripts proven to run outside of Oracle Clusterware into the Oracle Clusterware management stack. Supported operations therefore typically involve crs_* commands such as crs_profile, crs_register, crs_setperm, crs_getperm, crs_start, crs_stop, and crs_relocate invoked on custom resources. If actions scripts are used as part of a preconfigured agent, Oracle or the application provider who provides the agent will support the integration of this agent, while only the application provider will provide support for the individual action scripts."
Just for your information. Thanks,
Markusnot meant to be a question - rather an announcement.
-
Differences between Oracle Linux and CentOS
Dear ALL
I need differences between Oracle Linux and Cent OS, which is the better OS to install Oracle11gR2.
Kindly send me the benefits and percentage if anybody can...
Thanks.11gR2 is not certified to be installed on CentOS, so from that perspective alone, OEL is the only choice.
http://docs.oracle.com/cd/E11882_01/install.112/e24321/pre_install.htm#CIHFICFD
HTH
Srini -
Data Guard Broker and Cold Failover clusters
Hi,
I wanted to use Data Guard Broker to control primary/standby systems on AIX clusters but found that without Oracle clusterware it is not supported on failover of a database to another node (unless you drop and recreate the configuration which in my opinion is not support at all!).
The 11g documentation states that DG Broker offers support for single instance databases configured for HA using Oracle Clusterware and "cold failover clusters".
Does anyone know whether this support for cold failover clusters in 11g means "proper support" i.e the configuration detects that the hostname has changed and automatically renames it so it continues to work?, or is the support in 11g the same as that in 10g?.
Thanks,
AndyHi Jan,
We already use virtual hostnames.
When I set up the configuration the hostname for the databases default to the server name. The only way I know of changing this is to disable the configuration, then use the "edit database...set property" command but when I enable the configuration again it reverts back to its previous value.
regards,
Andy
Maybe you are looking for
-
When i open iPhoto, it shows my iPod touch is connected even though it's not.
When I open iPhoto, it shows that my iPod touch 4th generation is connected under the devices tab even though it is not. Here is a screen shot of what it looks like. Then when I plug in my iPod, iPhoto still will not open, i still get the same scree
-
How to get input controls to populate in a cell in webi
Hi I have a table and a graph and I have input controls set up for those. I would also like to create a blank cell and populate it with the selected input control. What formula do I use to obtain that? Josh
-
Simple but complete PI/XI scenario
Hello, I have just started learning about PI/XI. Now I have access to a PI 7.1 system and would like to start "learning by doing" instead of just reading about stuff. I would like to start with something simple like a file to mail scenario where I am
-
Videos in 720p and in 1080p don't seem HD on my 13" rMBP
Is this normal?
-
HT4623 is it possible to purchase the software for SIRI to be downloaded on an iphone 4g?
is it possible to purchaes the SIRI software to download on an iphone 4g?