Help with software RAID on system disk

I've been trying to get my OS system disk mirrored using diskutil's software RAID (my server has 2 internal 80GB drives). I did what homework I could and here's where I'm stuck. I'm running 10.4.3.
n506:~ root# uname -a
Darwin n506.local 8.3.0 Darwin Kernel Version 8.3.0: Mon Oct 3 20:04:04 PDT 2005; root:xnu-792.6.22.obj~2/RELEASE_PPC Power Macintosh powerpc
n506:~ root#
According to my research, I needed to boot from an OS disk other than the one I want to mirror, so I installed a second instance of OS X on my second drive, booted on that and ran diskutil enableRAID against the system drive I want to protect. This appeared to work. A new disk device was added (the RAID device) with its only component being the disk I ran enable RAID on. Then I booted from that disk. Here's the problem.
When I run diskutil addToRAID to add the second disk to the raid group, the command does partition the disk the same way the primary is partitioned (according to diskutil list), but the command always fails with this error:
n506:~ root# diskutil addToRAID member disk0 disk2
2006-05-27 23:49:50.012 DiskManagementTool[362] AppleRAIDUpdateSet failed to modify the set (null)
There was an error adding the disk to the RAID (-9960)
n506:~ root#
The system log shows this:
n506:~ root# tail -1 /var/log/system.log
May 27 23:49:50 n506 kernel[0]: AppleRAIDMember::readRAIDHeader: failed, no header signature present on disk0s4.
n506:~ root#
[NOTE: I should add here that, for reasons unknown to me, my system created /dev/disk0 from the drive in the second bay, and /dev/disk1 from the drive in the first bay (the primary disk I'm trying to mirror). I have no idea why OS X set up the devices like that, but I haven't really worried about it]
I've done what research I could and have found no information on this problem. I've tried zero-ing the second disk and rerunning the command (along with rebooting), but I always seem to get this error.
Any help would be greatly appreciated. I've been at it for days now and I'm really frustrated.
G5 server Mac OS X (10.4.3)

If anyone out there is interested in this thread, I upgraded to 10.4.6 and tada:
n506:~ root# diskutil addToRAID member disk0 disk2
The disk has been added to the RAID
n506:~ root# diskutil checkRAID
RAID SETS
Name: Disk1
Unique ID: 1CC5982A-B353-438C-A69F-8D66924449C0
Type: Mirror
Status: Degraded
Device Node: disk2
Apple RAID Version: 2
# Device Node UUID Status
1 disk0s3 219611E9-F35F-48A4-BD4F-F56038094613 2% (Rebuilding)
0 disk1s3 0EDD559B-FEE8-4F73-B94D-AF5590AD8BF2 Online
n506:~ root#

Similar Messages

Moving Thunderbold DAS with software RAID 1 to different Mac

Background: I am preparing to wipe my iMac (currently Mavericks) to then do a clean install of Yosemite. Attached to my iMac is a "WD MyBook Thunderbolt Duo". This external "DAS" drive model is a single enclosure that contains two, 2TB physical drives, and attaches to the iMac with a single Thunderbolt cable. I am not using any WesternDigital software on my iMac! Instead, I have used Disk Utility to manage the drive and have created a single 2TB software RAID 1 array (HFS+Journaled) incorporating both of the 2 physical drives as slices. The RAID 1 volume mounts as "DAS" on my Desktop and currently contains the majority of my media files.
Before beginning the repartitioning, formatting, and doing a clean install of Yosemite on the iMac's internal HDD, I plan on disconnecting the DAS's thunderbolt cable so it's safe from the install process.
Question: What I need to know is what to expect when I eventually reconnect the DAS to the new Yosemite installation. Will my RAID 1 volume "DAS" simply mount on the desktop as expected?
What I don't understand is where software RAID slice and volume configurations are stored. Is the software RAID 1 configuration stored as part of the partition table on the drives themselves or is it stored on the Mac? I am hoping to hear that the software RAID configuration is all on the drives themselves and therefore the drive can be reattached to a new Mac and it will just recognize the configuration and mount the volume normally with no additional effort. Can someone please confirm this to ease my mind (or save me before I go ahead with this).
Sorry to put this in the OS X Server forum but I thought that a software RAID question using Disk Utility would be best answered from the expertise here.
I appreciate any info you can provide.

Yes the software RAID configuration is stored on the drives themselves so it will be safe to disconnect from one Mac and reconnect to a second Mac.
Note to others. Any Mac that supports Thunderbolt is going to be running a new enough version of OS X so as to not cause a problem.

Opening the HDrive with Mac booted from System disk? Any help please?

Is it possible to open the HDrive and look/search for files inside it
while my Mac is started from manufacturer's system disk?
(It seems to me I can do just system reinstall and use dusk utilities but have no way to see what is in the HD)
I am a novice and any tip from experienced users is welcome!
My MacBookPro has OSX 10.6

Thanks Kappy for this reply, which is my first glimpse in really hi tech things!
I started with opening Terminal and
following line appeared :
-bash-3.2#
next to it I entered as you told me:
/sbin/mount -uw /
and clicked on return (here I don't know if it is right thing to do ) and got this :
usage: mount [-dfruvw] [-o options] [-t ufs | external_type] special node
mount [-adfruvw] [-t ufs | external_type]
mount [-afruvw] special | node
followed by another new line:
-bash-3.2#
( I tried to to type lines as accurately as possible because I can copy them in Terminal but have nowhere to paste them - the laptop in question works only when booted from CD.)
So, from this point I don't know how to proceed - where to enter the line you recomended: cp /Users/stephanie /Volumes/Backup/stephanie
and what are the exact steps to perform...
Also I don't quite understand what is "Home folder" -is it the administrator account folder which I named when installed the system for first time?
In my computer it is named "steph77"
Also some extra info that may assist you:
My external drive is named "LaCIE" and is plugged in the MacBook.
My internal hard drive to which I want access is named "MacHD" and my account
steph77 is inside it.
Can you help me with the steps to accomplish my task?
It is my first time meeting with command line and am a bit lost but very determined to learn it!
Thanks in advance Kappy , waiting for your reply !
Stephanie.

Server 10.5 on PPC with software RAID not bootable?

I read in this article (http://docs.info.apple.com/article.html?path=ServerAdmin/10.5/en/c5sa15.html) that "No PPC-based Macs support booting from software RAID volumes."
I believe that this is not true! From my software dealer i was told there should be no problems to do this. I called Apple and the guy i spoke with also told me that it works fine. I actually now have set up a software RAID1 (PPC G5 2.3Ghz, 2x500GB HD) from wich i boot and it does work!
My question is: Are there any risks to continue running this installation?
/Andreas

One risk is you can't partition an Apple software RAID 1 in Boot and Data volumes so you could potentially have either overwrite "the other". An "overfull" share can damage the system and vice versa.
And write performance can suffer because writes aren't simultaneous (?).
Another risk is the server woun't tell you when one disk fails so if you don't notice when the other one also fails the data on the first one is old (backups are essential as usual). Or if thinking "there is a "failover" disk available" when it too already have failed a while ago (but ofcourse no worse than having only 1 drive and no mirror).
Depending on the cause of failiure, software/glitch or mechanical, the disks can be in different "shape" if you have to try restoring the data.
A good idéa is have an extra drive (firewire?) you backup (one way synch replacing/removing old files/removed files) to every night.

Help with Degraded RAID?

I have a RAID array established (mirrored aka RAID 1 across two external Firewire drives, and it's not being used as my system volume.) The array has been in place for quite some time, and I've recovered from several failures previously (note to self: don't buy any more firewire drives that don't come back on after a power failure.)
I've just recovered from another failure, where the RAID set refused to recognize the existing drive as previously belonging to the set. I re-added the drive to the array and the drive was successfully rebuilt.
So far, so good. So what's the problem? The array is listed as "degraded." I tried following the advice listed here:
http://docs.info.apple.com/article.html?artnum=106987
Executing the command "diskutil checkRAID" reveals the results at the end of this message. What can I do about the duplicate node 2? All of the diskutil commands require the Device Node as a parameter, and they don't recognize "2" or "Unknown" as a valid value.
Help would be much appreciated ...
RAID SETS
Name: Backup
Unique ID: 59256911-7EF5-4FA4-B355-776D8187E8C7
Type: Mirror
Status: Degraded
Device Node: disk2
Apple RAID Version: 2
# Device Node UUID Status
1 disk1s10 536A7B2E-5F78-420E-AD36-98E4F21E01A5 Online
2 disk3s3 3E52C861-2ABF-4446-BAC6-C09DE2E95D86 Online
2 Unknown Missing/Damaged
----------------------------------------------------------------------

Well, I still don't know what happened originally. Perhaps I recovered the array pre-10.4 and some state was unhappy when I upgraded to Tiger? I'd still like to know the cause, but here's what I did to cure it ...
I backed the whole array up using Disk Utility. Just to be safe.
I used "diskutil destroyRAID" for which the documentation is nothing short of terrifying. I pretty much expected all the volumes to be wiped and to have to restore the whole thing. I was pleasantly surprised to find that the two volumes in the mirror were simply disconnected and both were intact duplicates of one another.
I unmounted one of the two copies, used "diskutil enableRAID mirror" to turn the other one into a single-set RAID and used Disk Utility to add the unmounted disk back into the array and started the rebuild.
All appears to be well again. This was under 10.4.6 so your mileage may vary. When in doubt, back EVERYTHING up first.

Mac Pro with software raid and upgrading to Snow Leopard

Not sure if anyone else has experienced this but here goes. I have a mac pro with 4 500G drives using the onboard software raid. When I insert the Snow Leopard disk and try to install, it fails to find the raid. Is there a trick to get this to work?

Thank you SSSOOO much Greg818. I was pulling my hair out over this problem. I even went so far as to do a full Leopard install with Snow Leopard update on a USB drive and them cloned it over to my RAID 0 array using SuperDuper hoping that this would solve the problem. It seemed to in the sense that the clone went fine but then when I would try and boot from the array I would get the Apple Logo and spinning wheel but it just kept spinning and spinning until finally the Apple logo was replaced by the Do Not Enter symbol(you know the circle with the slash through it).
So came here and found this thread. Your solution worked like charm!!! Once again thank you so much... you saved me from being bald.

Course for help with X Raid

Hi All,
My boss has given my the OK to go on courses for get up to scratch with X Serve so I'm going to go on the Mac OS X Server Essentials 10.5 4 day course but I also want to know X Raid setup. Is there anything else that go on to help with this?

Hi
If you are thinking the course covers the XServe then you might be mistaken. OSX Server is not the XServe, its any apple hardware that meets OSX Server's minimum requirements. It may well be mentioned on the course?
The XServe is dedicated hardware built for Server use although you can install OSX Client on it if you wish. To that end and as far as I know there are no specific courses for hardware other than Apple Certified Technician. This used to be ACPT and ACDT before apple unified the hardware courses under one umbrella.
As for the XServe RAID - apart from the fact that it is a discontinued product and has been for the last 2-3 months - I don't think there has ever been a specific course for it? Leastways not this side of the pond. There are plenty of manuals/user guides available for both products either on the Apple website or on the disks that come with both models.
http://www.apple.com/support/manuals/xserve/
http://www.apple.com/support/manuals/macosxserver/
Tony

Help with non-RAID HDD setup for 975X

I have built lots of computers of the years, but I have very limited experience with SATA. I am not wanting to use RAID, but I plan on having 2 computers hooked up to 2 of the 4 Intel ICH7 SATA connections and then on the ICH7 PATA controller I plan on having 1 HDD and 1 DVD+R. I plan on going in to the BIOS and setting SATA mode to AHCI (or should it be IDE?) and then "On chip Serial ATA" to Enhanced so that I get the use of all four SATA and the single PATA. Then I plan on disabling the Onboard JMB361. If I do this, will I need to install any drivers to get the system to see the HDD or DVD+R? When I boot up with a Norton Ghost floppy, will I need drivers on their to see the SATA and/or PATA drives?
If I ever decide to use the JMB361, I know there is a driver, but it seems that all instructions are to install it as you are installing windows (hitting F6). How do you install it if your system is already up and running? Is required for it to work properly, or is this just so that it can be seen when booting from CD-ROM or floppy? The manual that came with this board isn't very clear. It claims that the JMB361 can only have a master hooked up to the PATA connector, but all of the specifications I have seen elsewhere on the MSI website says that this board is capable of 4 total PATA devices (Master & Slave for the ICH7 and Master & Slave for the JMB361). Thanks.

Quote
Iam not wanting to use RAID, but I plan on having 2 computers hooked up to 2 of the 4 Intel ICH7 SATA connections and then on the ICH7 PATA controller I plan on having 1 HDD and 1 DVD+R. I plan on going in to the BIOS and setting SATA mode to AHCI (or should it be IDE?) and then "On chip Serial ATA" to Enhanced so that I get the use of all four SATA and the single PATA.
That should not be a problem. Set SATA mode to AHCI and enable "Force Gen.II" to enable full speed for your S-ATA drives. These settings do not affect the P-ATA drive that is connected to the ICH7-IDE-Port. In order to install Windows XP SP2 properly on one of your AHCI-enabled-SATA hard drives you need to point Windows to a disk that contains the ICH7-AHCI-SATA driver (F6). No additional drives will be needed to use the P-ATA drive that is connected to the ICH7-IDE-Port.
AHCI mode is necessary in order to support performance features like NCQ.
Quote
Then I plan on disabling the Onboard JMB361. If I do this, will I need to install any drivers to get the system to see the HDD or DVD+R? When I boot up with a Norton Ghost floppy, will I need drivers on their to see the SATA and/or PATA drives?
You can savely disable JMB361 as long as there are no drives connected to the IDE-Port or the S-ATA-Port that belongs to JMicron-Chipset. JMicron drivers are only necessary, when JMB361 is enabled and drives are connected.
Quote
When I boot up with a Norton Ghost floppy, will I need drivers on their to see the SATA and/or PATA drives?
I am not sure how Norton Ghost Floppy works, because I never used it. If it boots into some kind of DOS-Mode or any OS-mode prior to Windows XP/2000 you might have a problem seeing the S-ATA drives if they run in AHCI-mode because there are no DOS-based ICH7-AHCI-drivers.
Quote
If I ever decide to use the JMB361, I know there is a driver, but it seems that all instructions are to install it as you are installing windows (hitting F6). How do you install it if your system is already up and running? Is required for it to work properly, or is this just so that it can be seen when booting from CD-ROM or floppy? The manual that came with this board isn't very clear. It claims that the JMB361 can only have a master hooked up to the PATA connector, but all of the specifications I have seen elsewhere on the MSI website says that this board is capable of 4 total PATA devices (Master & Slave for the ICH7 and Master & Slave for the JMB361). Thanks.
You should be able to install the JMB361-driver after Windows-Installation. It is required to assure the proper function of all drives connected to the JMicron-Chipset.
The IDE-controller (IDE2) that belongs to JMicron chipsets only supports one Master Drive. Only 3 IDE-drives can be hooked up to the mainboard simultanously.

Help with NAS (Network Audio System) setup.

Anyone having any ideas how to set up this? I couldn't find any documentation, no howtos, no help, just an obscure nasd.con.eg in the package.
Has anyone managed to set up a client and a server for this system, it'd be really useful to me...

Idd, seeking is hard and really hacky (:D) to implement with the two process solution. :\ You can use the
extern-movie.sh 10.0.0.4 movie.mkv 124
to seek where you want in the files, but you'd have to exit the script, then restart the script in the middle of a movie ... :\ Writing a plugin for MPlayer might kinda defeat the simplistic design of rsound. Shouldn't be hard to implement though. I made an rsound client in python in like 5 mins, so shouldn't be too hard.
As for NAS: http://linux.die.net/man/1/nasd this helped a little, but it really looks like legacy software. "When the Network Audio System server starts up, it takes over /dev/audio."
I've been trying to get nas up and running, and it wasn't hard to get it to play some stuff with mplayer, but it feels quite broken using the default config + mplayer. Might be my alsa emulation of course, but mplayer showed hickups, erratic framerate (-autosync 100 helped against this), bad sound quality, and a couple of crashes.
You could try this from the command line. Shouldn't need to set-up any config file yet.
sudo nasd -aa
And running this in another shell:
mplayer <movie> -ao nas
Try it locally, not sure how to set up nas to connect to extern servers. :\
Last edited by Themaister (2010-01-04 18:47:10)

Need Help with Internal RAID

I'm working with 1080i HD footage (captured from a Canon HV30) and output through an Intensity Pro PCIe card to a 1080p display while working on Final Cut Studio 2. I have two separate monitors outputing 1920 x 1080.
I'm working on a 2.8GHZ Quad-Core Intel Xeo Mac Pro with 10GB of RAM and a 320GB Hard Drive. Quicktime stumbles over 1080 footage from FCP, skipping frames, so I need to stripe some drives, internally if possible (there's three slots available for drives).
I already own an additional 1.5TB SATA hard drive, and am wondering...
What size drives would be ideal to handle 1080 footage? Would 500GB drives be enough, 1TB, or 1.5TB? Should the drives all be the same size?
Do I need a PCIe card to stripe these drives together or is the OSX Disk Utility sufficient?
Will I need to stripe three drives, or is two sufficient? Should I stripe together the main drive too or stripe the drives separate from the main hard drive?
Help on any one of these questions would be appreciated. Thanks for reading.

Ok, now that you have freed up some space on your system HD, the next thing would be to do a little system maintenance.
First, shut down your Mac and restart it. Don't just log out. Shut it down. Power it off. Then restart. In System Preferences, turn off Time Machine if you have it running. Also put your system HD in the Spotlight privacy list (aka System Preferences > Spotlight > Privacy > Prevent Spotlight from Searching These Locations.)
Then, if you don't already have one, download a utility like Cocktail, Onyx, MacJanitor, etc. and run it. (You have Leopard, so make sure you download the appropriate version of the utility.) Make sure there are NO other applications running when you run the utility. When you run it, accept all the default operations and also check the option to clear the system cache; you want to clear the system cache. Also set it to shut down your Mac after running. (If there is no such option, you should manually shut down your Mac after the utility runs - and I mean shut down, not just log off.) The first time you restart after running the utility & clearing the system cache, your Mac will take longer than normal to boot; don't worry, that only happens the first time, as your system will be rebuilding the system cache.
Next, you should probably delete any render files that currently exist and re-render your video.
Then try exporting your video again, and see what happens.

Help with plan for new system

I was hoping to get a little expert advice on the system that I am planning on building. I was looking at picking up the "MSI Z68A-GD80 (B3)" motherboard, along with an Intel 510 SSD 120 gb drive. I am planning on partitioning the SSD into two drives, one for the max 64 gb ISRT cache, and the other with the rest of the space for the win7 prof 64 bit OS drive.
So my question is if the splitting of the SSD is possible like I mentioned?
and next, what should I pick for a data/app drive? I am not sure whether to go with my usual 2 drive raid-0 setup, or simply get one drive since I will be using ISRT. Any suggestions?
Another note, after I read about booting from USB devices, I plan on skipping the floppy drive
Thank you for any input.

Booting of USB device can be set as a priority in BIOS.
SSD is like any HDD, just do the partitioning during setup.
RAID wise, it is up to your preference. Speed or Mirroring or Balance?

Help with rescuing data from faulty disk

Sorry the long wall of text, I wanted to explained everything as detailed as possible to not mess with the chronological order (TL; DR down below!)
Ok, here's the thing. I have two hard drives, a ssd [sda] (for the OS [arch linux, ubuntu and win7], munchkin 240gb) and a sata 3 one ([sdc] wd, 1 tb) that I use for everything else. A couple of weeks ago I found there were progressive, unexpected and random behaviour particularly with windows, random freezes, no bsod, ecc... I finally found that the second hard drive was the culprit so I decided stop using a buy a new disk (while sending the faulty to RMA, since it's barely one year old, and I don't do nothing out of ordinary), I got a seagate with 1 tb.
I honestly didn't want to mess too much about the data and wanted to save the most without wasting time, so I decided to try to clone the whole disk with dd according to the wiki (Disk Cloning). I imagined that the "bad sectors" were from the ntfs partition, so I went with that. Clearly I could get corrupt files in linux too, but my guess was that the most important data was safe, because I had been using it for the last couple of days without problems. The process ended with a lot of I/O errors, but in the end it showed the same number of `in` and `out`. I regenerated the UUID for the new cloned disk and each partition, modified the fstab and restarted (fingers crossed).
I could log into arch linux without problems, used it for a while, restarted a second time (that windows habit that I still found hard to overcome) and everything was okay (yes I made sure I was actually on the new disk). Next was windows time, which to my surprise worked fine too, I even played a while. After patting myself in the back, I rebooted the machine thinking in how much work I would like to have done today, and there were an error that apparead on the login screen, just a ms before I pressed enter, I think I read it was referring to another partition of sda. The system got stuck in the middle of the "log in screen" and loading x with a black screen, nothing else. Waited a while, losing hope I pushed the RESET button.
Now, it was stuck during the boot up process, after "killing rf radio" or something. It was obviously stuck somewhere else... (that message had appeared there since I built the pc) it read though that the /var partition was clean, same with the root partition, next I tried with "recovery" kernels, and each other kernel I had still in grub; but the problem persisted. Tried with ubuntu, had to change fstab again, rebooted, tried to enter, stuck on the loading screen with the big purple background. I couldn't get anything else past that, neither to get a decent log.
I don't know why (or maybe because I was desperate) I entered the uefi/bios settings and found that the time was localtime instead utc.... weird I thought and I blamed windows (though, I had the registry hack working for a while) and imagined that I updated something that removed that *fixed* the blessed fix. Since I remember having issues with partitions not being correctly mounted once because of time issues, I thought it was a problem with the time... nope, nothing changed.
I tried again with the recovery kernel of the ubuntu install, I could drop on the root shell, and tried to fix the clock time after remounting, same with mounting the /var partition (ubuntu doesn't use that one), it threw that "bad superblock error", but fsck ran saying the filesystem was clean and it was mount normally later. Somewhere between, I mounted the home partition, no errors, gave a quick navigation. I tried to install ntpd to follow the "troubleshoot" from the Time arch wiki page, but HA, no internet.
Rebooted again, and from the menu from "ubuntu recovery", allowed me to enable networking. Quite nice I thought, and pressed enter. It politely informed that I needed to mount the system (root partition) in read/write instead read-only. I happily said yes (I already had remounted the ubuntu root as rw, and worked ok), but stopped at the home partition taking about 10 minutes in "phase 2", suddenly started throwing a lot of errors, about missing inodes, files pointing nowhere, etc. It put a lot of files into lost+found directory. Oh, there it was... I thought, let's go into Arch Linux then...
Now the system booted up quite fast, and I was welcomed by the black screen asking coldly for my login information, I wrote the credentials, pressed enter, aaaaand PAH, "/home/pablo" change directory failed: No such file or directory. HA, funny I thought, lsblk, the partition was mounted, ls -l /home/... WHAT? the folder wasn't there.
I looked for the lost+found folder inside the home directory, and it had a lot of directories and files called DXXXXXX.RCN, and IXXXXXX.RCN and some symbolic links. The directories had files inside, the IXXXXX are actually files, ecc.
Right now, I'm lost... I'm not scared about the data, because it's still living happily (?) on the bad disk, but I still need to recover it, so I can filter it later allowing to write zeros to the fault disk and send it for a replacement. Is there any chance to recover the data? (I rather not going into around 100 files/directories with cryptics names), or maybe use another method to "recover" the data from the previous disk? using cp or rsync? Any good experience or advice on this?
PS.- Sorry for the epic story, I hope I don't scare readers or other fellow members.
TL; DR
+ I have 2 disks (ssd [OS {win7, arch and ubuntu}] and sata3 [data])
+ Sata3 disk started to fail on windows (users folder it's on the sata3), arch/ubuntu never had a problem
+ I bought a new one, and I'm trying to send the old one for a RMA
+ Clone the disk according to the wiki and rebuilt the UUID
+ Change fstab to use the new cloned disk
+ Worked fine for a couple of times
+ Used windows, played, everything fine
+ Entered arch, now I couldn't it got stuck without showing any errors
+ Tried every kernel and recovery image without success
+ With Ubuntu I could drop into a root shell
+ Mounted home partition, no problems
+ Tried to activate networking, started to run fsck and threw a lot of errors (I remember I read something about "offset" not correcting) and moved files to lost+found directory
+ Arch Linux started, but I couldn't log because /home/pablo doesn't exist anymore and it seems everything lives now in the lost+found directory with weird names like DXXXXXX and IXXXXXXX
Aftermath: I have the original data, safe (?) on the bad disk (like I said, I never had any problem in my home partition). I really don't want to be nit picky about what I can save, I'll be happy to save as much as I can, but I don't mind losing corrupt files (that's why I thought cloning with filling with zeros would be enough). I just want to ditch the bad disk and send it to wd for a replacement.
End of TL; DR
2014/07/29: Added a TL; DR section
Last edited by pablox (2014-07-29 13:55:46)

I can see three possibilities:
1. The new HDD is broken as well.
2. The Linux partition contained a little garbage from old HDD's errors and that confused Linux and caused it to corrupt the partition further by writing more garbage to it.
3. The garbage from old HDD's errors contained on the Windows partition confused Windows and caused it to corrupt the Linux partition by overwriting it with garbage.
1. Rather unlikely if the HDD is new, but still worth checking. Install smartmontools and run smartctl -a /dev/new-hdd. On the "SMART attributes" list, check if any of "Reallocated_Sector_Ct", "Reallocated_Event_Count", "Current_Pending_Sector", "Offline_Uncorrectable" have RAW_VALUE other than zero or if the "SMART Error Log" contains any entries. If the attributes are all zero and the error log is empty, everything is fine.
2. Make new image of the old HDD. Make sure that Windows and Linux partitions don't overlap each other due to HDD read error. Run fsck on the Linux partition before mounting it to ensure that it doesn't contain errors which could lead to further errors. If it doesn't, it should be safe to mount and use it.
3. You said that Windows partition certainly contains error. Don't run Windows and don't mount this partition in Linux without running some NTFS checker (Windows tools on some other Windows system or ntfsck on Linux) and fixing all errors contained there. Alternatively, you can reinstall Windows on the new HDD and manually copy all the files you care about that are still readable from the old HDD. BTW, don't modify anything on the old HDD, as this would likely corrupt its other contents in the same way that modifying its copy corrupted other parts of its copy.
Last edited by mich41 (2014-07-30 22:30:11)

Getting a new G5 - need help with software from old G5

I am about to purchase a new G5 for my home... However I would like to have all of the exact same software and programs that are currently installed on my work computer that is being retired. With out having all of my original software disks, Is it possible to simply transfer all software from old computer to new computer? Or do I have to reinstall everything from original install disks?
PowerPC G5 Mac OS X (10.3.9)

cochrandesigns-
A new machine? Lucky!
You could swap the drive.
Apple does include the Migration Assistant with all of their machines. You simply hook up the two machines via a firewire cable, boot the old machine into Target Disk Mode while holding down the T key, and the Assistant does the rest.
In fact, when you turn the computer on for the first time it should ask if there is anything to transfer and then walk you through the steps.
Luck-
-DaddyPaycheck

Help with starting raid on the k9a2 platnium

ok well i just got a k9a2 platnium
specs- amd 9950 BE edition
4gb of 800mhz ddr2 cas 3
2x 80 gb hard drives
1x 640gb hard drive
ati hd 4870
k9a2 platnium
750 watt corsair psu
ok. i finished my computer. and i wanted to raid the two 80's. but for some reason it would never show up as a single drive when i install windows vista ultimate 64bit.
so i installed my vista on the 640gb hd.
how do i raid 0 my two 80 gb.
What i did now-
plugged in the two sata(the 80 gb's) into the red slots.
installed the raid driver for windows vista
booted computer. and press CTRL+F
pressed 2. and put my two 80's in raid 0 mode. i dunno what to put for the other options such as striping and stuff.
thats all i did for now.
can someone help me

I don't understand where you're at or what you're trying to acheive here ???
You've formatted the 640gb disk, so now where is your OS?
There was absolutely no need to do that, what myself and BOSSKILLER are trying to get you to do is to create a partition on your RAID array, so WIndows can use it, this is done by clicking on 'Drive Management' in your Computer Management screen. (right-click My Computer and select Manage)
The RAID array will appear as one 'disk' in the disk list (lower right window), but will be empty, just right-click inside it, and select Create Partition, and then format it.
[My screenshot below is from my computer, but I only have one hard disk, and no array, but your array will be shown in the lower right hand panel, will show as 160gb (2x 80gb)]
If you still cannot get the grasp of this, I suggest you get someone who knows how to do this to help you.

Help with partitions and file systems [SOLVED]

Hi, i have been using Ubuntu for a while, and now i want to move to Arch. I've probed it in a PC and i like so i want to make que change.
But, before installing Arch, I have 2 doubts. I red the beginners guide and also the instalation guide. There it says that if better to have diferents partitions for /, /boot/, /home, /usr, /var, y /tmp
Usually, i alwayes used something like this:
* /boot (32megas)
* /swap (512 megas)
* /root (6 a 8 gigas)
* /home (80 gigas aprox)
It's really better to also have partitions for /var, /usr y /tmp? o some of them? and, in that case, wich size should i give them? because i don't want to make them too small, but i don't want to waste disk space neither.
Adn that takes me to my second question, wich filesystem is better for each partitionn? in many places, i read taht JFS its good for /var or that XFS if better for /home and big files
I thinked to use something like this:
* /boot (ext2)
* / (JFS)
* swap
* /home (XFS)
Is a good design? or should i use other filesystem like reiserfs, etc... and for /var, /usr and /tmp partition, wich one should i use?
Thank you
Ps: This Pc is gonna be a desktop pc
Ps2: sorry for my bad english. it is not my real lenguage
Reason of edit: added the swap partition. I forgot it
Last edited by Thalskarth (2008-12-21 20:11:00)

thanks everybody for the help,
kaola_linux wrote:@Thalskarth - it's better to have /var especially if you're using ext3 or other filesystems which was designed for larger files as your partition for /home and /. Having a seperate partition for /var would be nice (backup purposes and reinstalling without downloading the entire package whole over again). 5gb would be sufficient for your /var, anyway you can always resize it to your needs.
so, a 5gb partition in reiserfs would be OK for a /var
Inxsible wrote:
Lot of people also use XFS which is known to have better performance with huge files. I think EXT3 offers a good balance...because I am never sure whether my home partition will have all huge files or not..same with my external drive...so i just use EXT3
If you have a specific partition for movies or some video/audio editing that you do..you may wanna consider XFS too. I don't do all that...so I have never used XFS. I wouldn't know the exact performance difference between ext3 and XFS.
Yes, in many places i red that XFS is better for big files. But i couldn't fine wich is the meaning of "big file". Does it mean a 200 mg file? or a 4.4gb one??
the same applies to reiserFs, what is a small file? a 1mg one or a 4kb one?
I have alwayes used ext3, i thinked in XFS and JFS just to give them a try.
amranu wrote:I have no idea about better filesystems, all my partitions are ext3 (soon to be ext4)
Inxsible wrote:One thing that makes me wanna keep EXT3 is that EXT4 is coming out (soon?) and you can upgrade from 3 to 4 without having to reformat and having to make backups of your current data.
really is cominf soon? i didn't think in ext4 beacuse many places said that was in development for many years... meybe they were a bit out-of-date
Edit: i search in the wiki and it says that since 11 october 2008, ext4 is "stable" and is been included since kernel 2.6.28 as stable realase, is to early to prove it? or it better to wait a while??
thanks.
and, does anyone try the JFS one?
Last edited by Thalskarth (2008-12-03 00:14:56)

Help with software RAID on system disk

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