Pierre M.R. wrote: > Dr.-Ing. Edgar Alwers wrote: >> On Monday 18 March 2013 00:37:25 Michael Shell wrote: >> >>> Anyway, before you do anything, what we want to see what name the >>> Toshiba and sda partitions are given when the Toshiba drive is >>> already connected during boot. >>> >>> However, there is a big problem with getting that crucial information >>> isn't there? Namely, that you can't just get it from a dmesg because >>> the system will fail to boot. >> We partially solve this problem taking pictures of the boot messages: we put >> a >> rootdelay= 50. >> Kernel-1.jpg shows the boot process before the delay, Kernel-2.jpg shows the >> process after delay, until panic. ( LFS partition, external disk connected ) >> >> You may find also the partition tables for sda and for the external disk sdb >> as well as the dmesg results in the included files >> >> Regards, >> Edgar >> >> >> http://dl.dropbox.com/u/8734485/Kernel_Panic_2/dmesg-sda-sdb-18032013 >> http://dl.dropbox.com/u/8734485/Kernel_Panic_2/Gparted-sda.png >> http://dl.dropbox.com/u/8734485/Kernel_Panic_2/Gparted-sdb.png >> http://dl.dropbox.com/u/8734485/Kernel_Panic_2/Kernel-1.JPG >> http://dl.dropbox.com/u/8734485/Kernel_Panic_2/Kernel-2.JPG > Kernel-1.JPG shows sda-1to8 and sdb-1to11. I would conclude that, in > this case, the laptop boots from the external HD. > > Pierre A workaround is to compile an LFS kernel with usb system as *modules* so that the kernel can't know about the external HD before mounting root fs and loading the usb modules.
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