Ron Blizzard wrote, On 07/30/2010 05:16 PM:
On Fri, Jul 30, 2010 at 8:33 AM, Todd Denniston Todd.Denniston@tsb.cranrdte.navy.mil wrote:
Best use for LVM I have seen... Reducing the number of times you need to enter the LUKS pass phrase to once per boot, i.e., one LUKS containing an LVM of / and Swap so that the system can boot with one entry of the pass phrase and if you then have other partitions, such as an independent /home, /etc/crypttab can be used (with appropriately constructed and protected cryptpassphrase files).
At this point I don't even know what a LUKS pass phrase is -- is this something I'm liable to run into on a home desktop computer?
Depends on how much you value not letting other folks at your data, with out your permission after you have properly powered down the machine. :)
LUKS is used with encrypted partitions/filesystems. I have only used it at the partition level. It is most easily setup at install time, because anaconda gets the incantations correct for you.
Suggested further reading: http://wiki.centos.org/HowTos/EncryptedFilesystem http://wiki.centos.org/TipsAndTricks/EncryptedFilesystem/Scripts http://en.wikipedia.org/wiki/Linux_Unified_Key_Setup