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Error 12 when installing FreeNAS \ FreeBSD
Hi All,
I'm currently in the process of writing a website that uses a seperate nas server to store the large video files that are needed. I have come across freenas instead of using windows 2003 server. I'm trying to install it on my development server which is a dell poweredge 4400. Old I know but it still kicks the bucket!!! It has a dual PIII Xeon 667mhz processors 4gb ram with 5 scsi hard drives @ 8.9
Gb each. 2 are setup in Raid 1 and the other 3 in Raid 5.
When I put the cd in and the server boots it goes through the boot up sequence and then boots from the cd. It starts loading the relavent kernels and it comes up with a selection screen of 5 options which I select:
boot [Default]
Straight after this screen it goes though a lot of text on screen very quickly so I can't see it but it comes up with: -
Fatal Trap 12: Page fault while in kernel mode
Fault Code: Supervisor write, page not present
Trap Number: 12
What am I doing wrong please as it would be great to get FreeNAS working.
Many Thanks
Lee
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by: gheistPosted on 2008-12-20 at 01:53:20ID: 23217632
This error usually means that either your system is overclocked or you have bad RAM modules.
To diagnose/resolve - reset BIOS to defaults and let memtest86 run for a day or two. Then use addresses to calculate bad ram chip and remove that.
If problem persists after you find ram is OK - that could be PCI card loose in slot.
What computer was doing before? Windows is less stressing to computer core elements than UNIX/Linux/BSD.
It could be broken amr RAID BIOS (update is broken as well likely)
If you are sure hardware is OK try to boot standard FreeBSD CD (4x CD-RWs tend work in old TEAC 224 CD drives)
With FreeBSD you will get debug information of failing driver to report to FreeBSD, if you get none then report FreeNAS bug.
If still stuck try OpenFiler - its Linux.
8.9Gb disks should be examined with smartmontools for defects (attached as plain disks)
If you really are in fileserving business let me suggest 2-port SATA2 controller with two terabyte-sized SATA disks. Old RAID is slow, contains bad batteries etc.
Detail on Trap 12 - it means that system could not address some page in memory, that is page descriptor table was altered by something not accounted in kernel.