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Am 11.03.2012 16:38, schrieb Valmor de Almeida: |
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> |
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> Hello, |
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> |
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> I have not looked at encryption before and find myself in a situation |
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> that I have to encrypt my hard drive. I keep /, /boot, and swap outside |
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> LVM, everything else is under LVM. I think all I need to do is to |
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> encrypt /home which is under LVM. I use reiserfs. |
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> I would appreciate suggestion and pointers on what it is practical and |
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> simple in order to accomplish this task with a minimum of downtime. |
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> Thanks, |
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> |
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> -- |
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> Valmor |
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> |
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Is it acceptable for you to have a commandline prompt for the password |
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when booting? In that case you can use LUKS with the /etc/init.d/dmcrypt |
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init script. /etc/conf.d/dmcrypt should contain some examples. As you |
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want to encrypt an LVM volume, the lvm init script needs to be started |
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before this. As I see it, there is no strict dependency between those |
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two scripts. You can add this by adding this line to /etc/rc.conf: |
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rc_dmcrypt_after="lvm" |
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For creating a LUKS-encrypted volume, look at |
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http://en.gentoo-wiki.com/wiki/DM-Crypt |
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You won't need most of what is written there; just section 9, |
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"Administering LUKS" and the kernel config in section 2, "Assumptions". |
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Concerning downtime, I'm not aware of any solution that avoids copying |
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the data over to the new volume. If downtime is absolutely critical, ask |
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and we can work something out that minimizes the time. |
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Regards, |
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Florian Philipp |
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