From 797c3ac668cbff65336197a0641bf45c235d281a Mon Sep 17 00:00:00 2001 From: Dieter Plaetinck Date: Wed, 5 Aug 2009 21:53:24 +0200 Subject: notes about what we do and dont support, blockdevice/filesystem-wise. + nice example for user on how to use the interactive filesystem thing --- doc/official_installation_guide_en | 39 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'doc') diff --git a/doc/official_installation_guide_en b/doc/official_installation_guide_en index 827e793..25c637c 100644 --- a/doc/official_installation_guide_en +++ b/doc/official_installation_guide_en @@ -332,6 +332,15 @@ you want to retry. want to undo or redo a certain scheme. You will be prompted for this if you forget. +Notes: + +* AIF can help you set up new dm_crypt and lvm volumes, but not (yet) softraid. +* AIF currently doesn't help you creating volumegroups that span multiple + physical volumes. (if you need this -unlikely- : use vgcreate) +* AIF supports reusing filesystems, but only if it can find the blockdevice. + If you want to reuse a filesystem that is on top of lvm/dm_crypt/softraid, + you'll need to bring up the volumes yourself. + ##### Auto-Prepare Auto-Prepare will automatically partition a hard drive of your choice @@ -380,6 +389,36 @@ swap). If anything is found, you can go back to fix these issues, or continue at which point everything will be setup the way you asked. +For example, if you want a setup that uses LVM on top of dm_crypt, you would: + +* make sure that you have a 2 partitions: a small one for the unencrypted + boot (about 100M) and one for the rest of the (encrypted) system. + (do this in "Manually partition hard drives") +* on your /dev/sdX1, make an ext2 filesystem with mountpoint /boot +* on your /dev/sdX2, make a dm_crypt volume, with label sdX2crypt + (or whatever you want) +* /dev/mapper/sdX2crypt will appear. Put a LVM physical volume on this +* /dev/mapper/sdX2crypt+ appears. This is the representation of the + physical volume. Put a volumegroup on this, with label cryptpool + (or whatever you want) +* /dev/mapper/cryptpool appears. On this volumegroup you are able to put + multiple logical volumes. Make 2: + * one with size 5G: label this cryptroot + * one with size 10G: label this crypthome +* 2 new volumes appear: + * /dev/mapper/cryptpool-cryptroot: on this blockdevice, you can put your + root filesystem, with mountpoint /. + * /dev/mapper/cryptpool-crypthome is the blockdevice on which you can put + the filesystem with mountpoint /home. +* If you want swapspace, make a logical volume for swap and put + a swap volume on it. +* That's it! If you select 'done' it should process the model and create + your disk setup the way you specified. + The cool part is that you can pick relatively small + values for your volumes to start with, and if you need more space later + you can grow the logical volume and the filesystem on top of it. + + ##### Rollbacks The rollback function will do everything necessary to "undo" changes you -- cgit v1.2.3-54-g00ecf