On Tue, Jan 07, 2014 at 09:52:50AM +0100, Josep Lladonosa wrote: > Hello, > > > I have been using bcache for some months. Now I am with 3.12.6 kernel > (stable! :) > Thanks and congratulations for the good work. > > I have in the laptop this configuration: > > /dev/sda7 as backing device (hard drive partition) > /dev/sdb as cache device (SSD) > > 1) I would like to physically swap sda and sdb (a matter of different > bus speeds) in order to improve ata speed for SSD. The fact is that in > a case of this, would I have to "reregister" anything in bcache, or it > will run referenced to UUIDs and so? Everything's referenced with UUIDs, so it'll all just work. > 2) I think I would have to install GRUB into /dev/sdb (it has no > partitions defined). Would it be safe installing GRUB in a cache > device? Future configuration would be /dev/sda for the cache (SSD) and > /dev/sdb for the backing device (hard drive). Bcache doesn't touch the first 4k of the device, so if it's just grub's MBR (512 bytes) that should be fine. I would verify that grub isn't touching more than the first 4k of the device though. -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
