On 20/05/2011 09:33, Paul van der Vlis wrote: > You can select the "boot device priority" where you can choose about > devices types (DVD, harddisk, USB, network) but you can choose only one > SATA disk. Study it, and you will see I am right. I've asked it to my > rackserver-vendor, they say: "that's always the case". Hi, what I have done with all my supermicro servers is to buy a tiny USB flash drive (physically small, not capacity small) - I think what I bought might be one of the tiny PNY devices, not sure though The Supermicro boards have internal USB headers mounted on the motherboard, even with a 1U server I have plenty of room to install my USB on the MB (could stick them out the back of the server and cable tie them (or superglue them)) Then I put SysrescueCD on my stick and setup GRUB with a bunch of boot options. In my case I'm under the possibly misguided apprehension that my boot will fail over to the spare disks if one fails. However, I can set the subsequent failover to be my USB stick also. I think I have them set at the moment that the USB stick boots the main drives as normal, but has a boot menu where I can also boot the sysrescueimage if I need to (I use this (over IPMI) for initial system installation and serious maintenance, eg failed grub upgrade or similar). The only other option that I think the big hosting guys use is to have a netboot setup which boots everything and can also offer rescue images, etc. Beyond my skills to setup for my meagre number of servers, but if you have more than a couple of machines this could be a very good solution? For my needs the USB stick option is perfect Sysrescuecd suits me because all my servers are gentoo based - clearly it will work for other distros also, but you might want to evaluate other rescue distros before choosing one? Good luck Ed W -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html