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On Donnerstag 11 Juni 2009, walt wrote: |
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> Okay, my root partition is on /dev/sda (normally), which is a sata |
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> drive connected to the onboard sata controller. |
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> |
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> The problem is that I also have a plug-in ESATA docking station, which |
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> is not always powered on. When it *is* powered on, my kernel names the |
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> disk /dev/sda, and that forces the root device to be named /dev/sdb |
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> instead of sda. Crashing ensues during bootup. |
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> |
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> The machine's BIOS doesn't even recognize the ESATA controller, so |
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> I can't fiddle with anything there. |
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> |
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> Anyone have any ideas how to get a kernel to mount the root partition |
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> based on the pci slot number or something equivalent? |
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> |
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> I've tried using a disk label in fstab instead of a device name, but the |
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> problem is that the kernel mounts the wrong partition before it has a |
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> chance to read fstab. |
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> |
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> I've also tried using rdev to set the root device to the disk's major |
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> and minor numbers but that fails because the kernel switches the minor |
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> device numbers along with the device names. |
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> |
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> Any clues would be much appreciated. |
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|
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afaik you can use labels in grub too. |
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