Hi, I need to create a PV over a /dev/mapper device in order to create a crypted LVM system (*) on a Debian Woody with 2.6.9 kernel. I encrypted a partition (/dev/hda10) using DM-Crypt, getting /dev/mapper/crypt10 device. When trying to create PV, I got the following error: jupiter:/# pvcreate /dev/mapper/crypt10 /dev/mapper/crypt10: Couldn't find device. I know how to temporaly fix the problem by adding the device to /etc/lvm/.cache. But the problem is that I couldn't get it to be permanent. I did several tests modifying /etc/lvm/lvm.conf and re-running "vgchange" to re-read changes, but it didn't work. I've tried different lvm.conf configs like: filter = [ "a|/dev/mapper/crypt.*|" ] (cause I'd like to have crypt10, crypt11 and so on) filter = [ "a|/dev/mapper/crypt10|" ] filter = [ "a/.*/" ] I mixed them with other directives like: scan = [ "/dev" ] scan = [ "/dev/mapper" ] scan = [ "/dev/mapper" "/dev" ] Nevertheless, when running vgscan, .cache is re-built without my crypt device. What am I doing wrong? Is there any limitation on devices scanned by vgscan? I'm using this version of LVM: jupiter:/# lvm version LVM version: 2.00.21 (2004-08-19) Library version: 1.00.15-ioctl (2004-04-07) Driver version: 4.1.0 (*) My idea of Crypted LVM system is to have crypted PVs and then building LVM over them. This way I got total flexibility provided by LVM and the security based on encryption (eg: I can extend/reduce a live&mounted crypted fs on-the-fly). Anyone using a similar setup and could/want to provide more ideas or feeback about this? Saludos, --Roman -- PGP Fingerprint: 09BB EFCD 21ED 4E79 25FB 29E1 E47F 8A7D EAD5 6742 [Key ID: 0xEAD56742. Available at KeyServ] _______________________________________________ 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/
