On 10/15/2014 06:43 PM, Dan McGhee wrote: > In combatting the HP-Microsoft-UEFI coalition on my laptop, complete gory > details after I get it figured out, I am prepared to take drastic action with > what’s on my internal drive (/dev/sda). But I want to make sure I can boot > LFS from an external disk (/dev/sdb) and backup what I have done so far. > > Although it’s not convenient, I can get to grub on /dev/sdb, but when it > loads the LFS kernel, I get a KERNEL PANIC because the only device that’s > loaded at the time is /dev/sda. Booting to LFS on /dev/sda from /dev/sdb > works wonderfully. > > ISTR from reading something, sometime, somewhere that when attempting to do > this I need to delay the kernel process somehow until there’s a UDEV trigger > to attach /dev/sdb. But I can’t remember, nor can I find, how to do this. I > *think* the kernel command line option for this is “root delay,” but I’m not > sure. It it is, what is a good time? 1 sec, 2 sec? Or is there any other > command line option for this. I see a number of them for usb stuff, but I > don’t think they apply to what I want to do. > > Thanks, > Dan >
You need to build the "USB Storage" driver into kernel. -- Note: My last name is not Krejzi.
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