Re: Make fully encrypted disk without LVM during install
(Incidentally is your first name 'Jetse'?) On Wed, Apr 04, 2012 at 07:37:31PM +0200, J.A. de Vries wrote: Ever tried to put a fully encrypted disk with LVM in another machine, without booting from it? Far worse: I have a 1TB external drive with a DOS partition table, one partition formatted for LVM, with an LVM logical volume on top which is part of an md RAID set, inside the RAID device is another LVM PV for a different volume group. Your point is correct: it is far from user-friendly ☺ However, for this sitation I need something a bit more userfriendly. Preferably a scenario where my customer only needs to enter his password when mounting. That's why I thought of leaving LVM out of the picture altogether. What environment is available in the system that might need to interpret the device? My GNOME desktop can mount LUKS/dm-crypt devices graphically, via nautilus (I think using udisks[1] as the back-end but I can't see the package dependency relationship) [1] http://www.freedesktop.org/wiki/Software/udisks In this situation it has no purpose at all, so why use it then? If you are using the entire disk and don't anticipate needing to shuffle things then there's no point indeed. Cheers -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120405083438.GE2010@debian
Re: Make fully encrypted disk without LVM during install
Hi Jon, Far worse: I have a 1TB external drive with a DOS partition table, one partition formatted for LVM, with an LVM logical volume on top which is part of an md RAID set, inside the RAID device is another LVM PV for a different volume group. Your point is correct: it is far from user-friendly ☺ Ah, another fellow sufferer! To us it is a problem we can overcome, but I'd like to present my customer something that'll be easier to do. What environment is available in the system that might need to interpret the device? My GNOME desktop can mount LUKS/dm-crypt devices graphically, via nautilus (I think using udisks[1] as the back-end but I can't see the package dependency relationship) [1] http://www.freedesktop.org/wiki/Software/udisks Thanks. I hand't seen this, yet. The DE where the disk will be mounted is pure KDE. At the moment version 4.6.3, but they expect to migrite to 4.8 in a couple of weeks. If you are using the entire disk and don't anticipate needing to shuffle things then there's no point indeed. That's the case. Thanks for helping! Grx HdV -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201204051320.35932.hdv.ja...@gmail.com
Re: Make fully encrypted disk without LVM during install
On 01/04/12 08:27, J.A. de Vries wrote: This time I need my disk to be easily portable, so I prefer to have a fully encrypted disk without LVM The system on which you might want to read the disk will need to know how to decrypt it. Do you anticipate hot-plugging it to a running machine, or trying to boot from it? The convenience-partitioning-scheme offered by d-i which uses LVM and encryption also creates a non-encrypted, non-LVM /boot partition, within which the kernel and initramfs are stored. These are set up to understand how to interpret both the encryption and LVM. I'm having trouble seeing why LVM would be much more pain than encryption already brings you, from a portable POV. (I suppose it's one fewer command to type!) signature.asc Description: OpenPGP digital signature
Re: Make fully encrypted disk without LVM during install
Hi Jon, The system on which you might want to read the disk will need to know how to decrypt it. Do you anticipate hot-plugging it to a running machine, or trying to boot from it? In this situation I will have a disk which is used to boot one machine, but does contain data that will be needed on another machine. That machine will definitely not use this disk to boot from, but just as a data disk. I know I could move the data around as an encrypted archive, but my customer wants a solution where the data is only stored on one disk. And yes, they are aware of the potential risks that brings with it. Still, that's how the want it. The convenience-partitioning-scheme offered by d-i which uses LVM and encryption also creates a non-encrypted, non-LVM /boot partition, within which the kernel and initramfs are stored. These are set up to understand how to interpret both the encryption and LVM. I'm having trouble seeing why LVM would be much more pain than encryption already brings you, from a portable POV. (I suppose it's one fewer command to type!) Ever tried to put a fully encrypted disk with LVM in another machine, without booting from it? If you boot from it there's almost no hassle at all. I know it is possible to mount such a disk. I've used the scenario described at http://canonical.org/~kragen/crypted-disk.html often enough. However, for this sitation I need something a bit more userfriendly. Preferably a scenario where my customer only needs to enter his password when mounting. That's why I thought of leaving LVM out of the picture altogether. In this situation it has no purpose at all, so why use it then? Thanks for trying to help. Grx HdV -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201204041937.31311.hdv.ja...@gmail.com
Make fully encrypted disk without LVM during install
Hi all, I plan on installing testing on a brand new disk later this week. Last time I did this I just followed the options the installer offered and ended up with a perfectly fine system on a fully encrypted disk using LVM. This time I need my disk to be easily portable, so I prefer to have a fully encrypted disk without LVM. Not that LVM is a problem in itself, but I could do without the hassle it brings with it when you want to mount that disk on another system where that system will not boot from it. I know it can be done even with LVM, but in this case it is more of a bother than a help because I am quite sure I won't need to resize the partitions. Is there some combination of options in the installer that supports this choice? If there is I am propbably very dense today, because I can't seem to find it. I'd really appreciate it if someone could give me some pointers in the right direction. Grx HdV -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201204010927.12260.hdv.ja...@gmail.com
Re: Make fully encrypted disk without LVM during install
If you only encrypt the disk, the default (at least on the squeeze netinstall disk) is to create a large ext3 partition. Then you don't have an lvm partition... --b On Sun, Apr 1, 2012 at 3:27 AM, J.A. de Vries hdv.ja...@gmail.com wrote: Hi all, I plan on installing testing on a brand new disk later this week. Last time I did this I just followed the options the installer offered and ended up with a perfectly fine system on a fully encrypted disk using LVM. This time I need my disk to be easily portable, so I prefer to have a fully encrypted disk without LVM. Not that LVM is a problem in itself, but I could do without the hassle it brings with it when you want to mount that disk on another system where that system will not boot from it. I know it can be done even with LVM, but in this case it is more of a bother than a help because I am quite sure I won't need to resize the partitions. Is there some combination of options in the installer that supports this choice? If there is I am propbably very dense today, because I can't seem to find it. I'd really appreciate it if someone could give me some pointers in the right direction. Grx HdV -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201204010927.12260.hdv.ja...@gmail.com -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAKmZw+aGB_pYriJEaapMdQpJ=y69J=s9zwnzmhp9b7ycg5h...@mail.gmail.com
