[Alasdair, I've copied you because I don't know if you're subscribed to fedora-devel-list and thought this might be interesting to you, for the rest of the thread, you can start at http://www.redhat.com/archives/fedora-devel-list/2004-July/msg00251.html ] On Mon, 2004-07-05 at 23:20, Nils Philippsen wrote: > On Mon, 2004-07-05 at 21:54, W. Michael Petullo wrote: > > >> I am working on implementing encrypted root filesystem support to > > >> mkinitrd. See > > >> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124789 for more > > >> information and an patch. > > > > > I looked at the patch any I see the problem that you need to call > > > mkinitrd with certain arguments in order for this to work. This > > > should just kind of determine the parameters (i.e. read them from a > > > config file written while creating the encrypted root device) used on > > > the current root fs and apply them automatically so that calls to > > > mkinitrd from e.g. the kernel pkgs' %post scripts work. > > > > Okay, that's a great point. Where should the configuration file be? / > > etc/sysconfig/rootfs would get my vote. > > ACK as far as I'm concerned. Thinking about it again, I'm rather for using the same fstab like list I mentioned in my original post (well as soon as something like that is specified), e.g. a file /etc/dmtab which would contain this: <realdevicename> <dmdevicename> <type> <options ...> in our case e.g. with key on a USB stick: /dev/sda5 crypt-dev-sda5 crypt authtype=filesystem,keydev=/dev/sdb4,keypath=efsk,keymat_fstype=vfat,cipher=aes-plain[,iv_offset=...,sector_offset=...] or a mere passphrase for a logical volume (for this case the installer should forbid using "crypt" as the VG name ;-): /dev/mapper/vg00-lv_root crypt-lvm-vg00-lv_root crypt authtype=passphrase,cipher=aes-plain[,...] or for swap: /dev/sda7 crypt-dev-sda7 crypt authtype=random,cipher=aes-plain Alasdair, what do you think would be best to store such fixed, not automatically determinable realdev->dmdev mappings -- such an fstab like file or rather separated config files /etc/device-mapper/<module>.conf, or ...? Nils -- Nils Philippsen / Red Hat / nphilipp@xxxxxxxxxx "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -- B. Franklin, 1759 PGP fingerprint: C4A8 9474 5C4C ADE3 2B8F 656D 47D8 9B65 6951 3011
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