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Joseph wrote: |
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> On 11/16/10 21:04, Dale wrote: |
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>> Joseph wrote: |
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>>> My ASUS A8V motherboard went down so I change it with another ASUS MB |
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>>> M2NPV along with CPU. Both CPU's were AMD so no need to change flags. |
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>>> Have two hard drives both SATA 200G and 500G |
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>>> However, after trying to boot I get: |
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>>> |
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>>> VFS: Cannot open root device "sda3" or unknown-block (0,0) |
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>>> |
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>>> In grub.conf I have: |
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>>> root (hd0,0) |
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>>> kernel /boot/kernel-current root=/dev/sda3 pci=noapi noapci |
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>>> When I boot strap and run, df -h it shows all the partition correctly |
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>>> but all showing as: |
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>>> Size: 46G used: 30G avail: 15G |
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>>> |
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>>> So it would seem to me the kernel does not recognized correctly large |
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>>> disk drives; but it this kernel worked correctly with previous |
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>>> motherboard (the one that failed). BIOS is showing both hard drives |
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>>> size: 200G and 500G |
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>>> What to look for? |
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>>> |
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>> |
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>> I would start by checking the kernel config. Make sure you have your |
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>> drive chipset BUILT INTO the kernel and whatever drivers you use for the |
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>> file system root is on also BUILT IN. Keep in mind, you can't build |
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>> those as modules. They have to be in the kernel itself. |
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>> |
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>> As to the different sizes, not sure. Maybe someone who has seen that |
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>> will have additional ideas. May be driver related, may be something |
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>> else. |
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>> |
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>> Dale |
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>> |
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>> :-) :-) |
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> |
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> The BIOS sees both HD but, boot sector is working OK as grub comes up |
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> but then I get a message: |
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> |
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> VFS: Cannot open root device "sda3" or unknown-block (0,0) |
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> please append a correct "root=" boot option; here are the available |
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> partitions: |
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> 0300 4191302 hda driver: ide-cdrom |
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> |
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> So it seems kernel does not see the sata drives, but how it is |
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> possible? Boot partition is on sda |
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> |
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> Someone suggested that BIOS is seeing different logical layout of |
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> cylinders/ heads. |
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> In BIOS setup there a choice of IDE mode, AHCI mode, etc |
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|
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It sounds to me like you don't have the drivers for the chipset. If you |
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leave those out or they are modules, it can't see the drives. |
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|
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Keep in mind, just because grub sees the drives does not mean the kernel |
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does. They are two separate things. Grub only passes info on to the |
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kernel. Once you select what you want to boot, grub is out of the picture. |
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|
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Dale |
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|
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:-) :-) |
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