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The error just means it cannot find any device called /dev/sda4, but can |
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only find your CD (sr0). |
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|
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I get this when booting from a usbkey and I need to tell the kernel to wait |
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5-10 seconds before detecting hdds. I also had this error when I used a |
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config from my "normal" computers onto an older computer that used IDE and |
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PATA (these were disabled in kernel). |
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|
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Good luck! |
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|
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|
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On Wed, Apr 25, 2012 at 4:17 PM, James <wireless@×××××××××××.com> wrote: |
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|
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> Hello, |
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> |
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> OK, I manage quite a few gentoo systems. |
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> ONE of them is being a BIT _ _ ! and I cannot |
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> figure out what is obviously simple.... |
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> |
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> I have already migrated most system that I manage |
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> to the 3.2.12 kernel (not testing kernels for me |
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> at this time). |
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> |
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> Background: The system is an old HP AMD dual core laptop: |
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> AMD Turion(tm) 64 X2 Mobile Technology TL-56 |
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> |
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> The error message is this: |
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> |
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> Root-NFS: no NFS server address |
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> VFS: Unable to mount root fs via NFS, try floppy |
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> VFS: Cannot open root device "sda4" or unknown block (2,0) |
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> Please append a correct "root=" boot option; |
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> here are the available partitions: |
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> oboo 1048575 sr0 driver:sr |
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> |
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> Kernel panic - not syncing : VFS : Unable to |
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> mount root fs on unknown block(2,0) |
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> PID:1,comm : swapper /0 |
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> Not tainted 3.2.12-gentoo#2 |
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> |
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> The other (3) series kernels boot and run just fine: |
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> from grub.conf: |
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> #0 |
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> title= Linux 3.2.1-gentoo |
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> root(hd0,1) |
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> kernel /boot/kernel-3.2.1-gentoo root=/dev/sda4 |
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> #1 |
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> title= Linux 3.2.12-gentoo |
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> root(hd0,1) |
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> kernel /boot/kernel-3.2.12-gentoo root=/dev/sda4 |
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> #2 |
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> title= Linux 3.0.6-gentoo |
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> root(hd0,1) |
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> kernel /boot/kernel-3.0.6-gentoo root=/dev/sda4 |
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> |
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> I can even scp over a kernel from a single processor AMD64 |
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> laptop and it boots and runs just fine. |
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> |
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> |
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> When I make a new kernel, I do what I have done for years |
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> with Gentoo: |
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> |
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> cd /usr/src |
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> rm linux |
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> ln -sf <latest.kernel> linux |
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> cd linux |
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> make menuconfig <save any changes> |
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> make && make models_install |
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> |
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> cp System.map /boot/System.map-3.2.12-gentoo |
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> cp arch/x86_64/boot/bzImage /boot/kernel-3.2.12-gentoo |
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> cp .config /boot/config-3.2.12-gentoo |
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> |
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> |
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> So all I can think of is NFS is the difference? |
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> I cannot seem to flesh out way the new kernel will |
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> not boot on this system and many others are just fine.... |
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> |
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> maybe I'm missing support for the "sr" driver ? |
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> |
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> ideas? |
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> |
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> James |
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> |
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> |
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> |
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> |
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> |
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> |