On Tue, Aug 07, 2007 at 08:01:53PM +0100, Alasdair G Kergon wrote: > > AIX treats the boot LV specially, and ensures > > that its PEs are contiguous at the beginning of the disk(s). > > Nothing is stopping a linux installer doing that today: > --alloc contiguous and specify the extents. (its been a long time but) last time I looked there was no facility to flag an LV in a manner that would accord it treatment from the various utilities appropriate to it's status as a boot volume (such as, for example, not moving about). Of course, when I looked there wasn't any functionality in the utilities that did anything to worry about :-) (but user-space code is easier written than on-disk representations are changed) (unless its already been done ...) by the time anyone gets around to it, the various bios limitation of PCs, etc will all be just a memory. > But if grub supports LVM2 properly (add a trivial mapping layer from LV > extents to physical sectors, then populate it from the LVM2 metadata > across an agreed interface from a library maintained as part of the lvm2 > package) it won't require anything like that of course - the hardest > problem I think is actually for it to identify the right disks to use. (and yet strangely we all manage to boot ... !?!? ) ... or everyone uses a boot-loader that reads filesystems, and they all learn to read LVM too :-) Regards, Paddy _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
