> > >I am trying to make an install on two disks using lvm; but I want to do a >stripe of the two disks. I know lvm has raid0 functionality, > yes it has, but it's not that good as raid0, raid0 is faster
> but in the install tool it is not clear how to do this, > it doesn't support it, you can create only linear LV's with it, but you can mount already created one's in case they are over soft-raid forget it, the kernel doesn't have compiled in raid (autodetect) so you can not start the VG's >since all you can select is to "Add to >LVM", but it is not clear if it will stripe or concatenate the PV partitions. > well it can do only linear one's > >What I am trying is to setup a partition of type LVM "fd" on each drive, > LVM is "8e" or "0x8e " , "fd" or "0xfd" is for soft raid > and >then add them to the same LVM (in fact all of this wording should be changed, >for example instead of "add to LVM", it should say "add to volume group"), >where I would later create /usr, /home, etc. > it should be fully remade, not just the naming sheme, but also the lvm-code it doesn't support extending or reducing of LV's and that's not the only PB >Since I was not sure this would stripe the two partitions in the vg, I then >tried to create a raid0 stripe out of two raid partitions, and add that >resulting md to the vg; but this craps out the install interface and creates a >vg that can not be removed. I can go a little further, if I format the md as >ext2 or whatever, before changing its type to LVM, since apparently it has to >**actually** create the meta device and start the raid modules in order to >format the partition. The current install tool needs a lot of work as far as >raid and lvm is concerned. > well raid is ok, exept if you wont to make a VG over it but the LVM part .... and the kernel shoud have built in raid support, in order raid autodetect to work and the lvm-tools are pretty old > >Anyway, how do I do this? Would I have to to all this manually from the shell >just before the filesystems tool (and how would I continue the install?) or is >the install tool capable of this. All I want is a LVM volume group that is >striped along to PV, or alternatively, a LVM volume group with one PV which is >a two stripe raid 0 meta device. I would then put all my partitions except / >and /boot on this volume group. > the best solution for me is create the soft raid and start it, and than make a VG over it or you can create a striped LV's from console or make a small install on a normal partition, create the LV's (striped or over raid-0) transfer /usr /var /tmp ... to LV's and install the remaining packages
