This article will show you how, when presented with this situation, to manually load your kernel and find out what went awry. First thing is to briefly explain how Grub loads itself and the kernel. GRUB in a nutshell When the server is powered on, the server’s BIOS finds the primary bootable device and loads the initial bootstrap program from the master boot record ( MBR then transfers control to Grub Stage 1. Stage 1 resides in the MBR and because it is very small code, it basically loads the next Stage from a defined location on the disk within the first 1024 cylinders. Stage 1 can load Stage 2 directly, but it’s normally set up to load Stage 1.5. Grub Stage 1.5 is located in the first 30 kilobytes of hard disk immediately following the MBR and before the first partition. Stage 1.5 can contain any drivers needed and it then loads Stage 2. Stage 2 will then load the default configuration file and any other modules needed. These files are located on a SLES server in the /boot/grub/ directory. Once Grub has loaded, it normally presents a graphical interface where you can select which kernel to load. There are other options that can be configured, but we’ll stick with the SLES defaults here. Grub then loads the kernel into memory and passes control to that kernel. Or so it should Manual Load Process Now, aside from a drastic failure in hardware, seeing the prompt below causes one to scratch one’s head in confusion and perhaps state a few unmentionable explicatives. grub> But, seeing this prompt has it’s upside. We know the server is not dead, Grub cannot find its files for some reason. We’ll try to get the menu back first. On SLES, by default, Grub files reside in /boot/grub/ directory. But, we need to know what disk device and partition. We can use “find” and Grub will tell us. grub> find /boot/grub/stage1 (hd0,1) Now that we know that on hard disk 0, partition 1 (the.
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by kb3gtn » Sat Aug 03, 2013 11:02 pm THIS SETUP GUIDE Works with the kernel driver implementation only This setup guide was broken by libusb transition. You must use libusb for now. [b] LIBUSB implementation setup guide to come soon. Please use: for setups now. OLD STUFF Below - The gnuradio build instruction I think are still valid. This is a quick guide I put together for setup the blade RF on a (?)ubuntu 13.04 AMD64 system. These instructions are not well tested at this time, feedback and corrections are welcome. Someone was talking about converting this into a script one could just run. I just got my board in, and the setup instructions I found to be a bit scattered brain. So this is an attempt to consolidate the knowledge. THIS SETUP GUIDE Works with the kernel driver implementation only LIBUSB implementation setup guide to come soon. Change List: : based on suggestions from lousyg corrected missing./ on cmake added updated information about redhat based distros. Correct init_board.sh script to only load the FPGA Once the FX3 flash has been loaded, you don't need to touch it, unless there is an upgraded flash image. Fixed some typos. - START Pete's Blade RF build/install instructions (as of tested (k)ubuntu 13.04 linux- -generic x86_64 Peter Fetterer (kb3gtn) This procedure builds the nuand code / FX3.
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