Step 4: (Optional) Configuring the Autostart Feature

The EVFS autostart feature allows you to enable and mount EVFS volumes automatically at system startup without manual intervention. You must use the autostart feature for EVFS volumes that have file systems mounted at system startup (file systems with entries in the /etc/fstab file).

CAUTION: Using the autostart feature requires you to store passphrases, and stored passphrases are security risks.

Use the following procedure to configure the autostart feature:

a.Enable EVFS in the /etc/rc.config.d/evfs file. Change the value for EVFS_ENABLED to 1 as follows:

EVFS_ENABLED = 1

b.Modify the entries in the /etc/evfs/evfstab file for the EVFS volumes that you want enabled at system startup. You must add a key ID and the boot_local or boot_remote option. The syntax for each entry is as follows:

v volume_path evfs_volume_path user_name.key_name options

where:

 

 

v

Specifies that the entry is for an EVFS volume. The EVFS

 

subsystem automatically adds this field to the

 

/etc/evfs/evfstab file when you create the EVFS volume

 

device files.

 

volume_path

The path for the underlying LVM, VxVM, or physical volume

 

block device file, such as /dev/vg01/lvol5,

 

/dev/vx/dsk/rootdg/vol05, or /dev/dsk/c2t0d1. The

 

EVFS subsystem automatically adds this field to the

 

/etc/evfs/evfstab file when you create the EVFS volume

 

device files.

 

evfs_volume_path

Specifies the absolute pathname for the EVFS volume block

 

device file, such as /dev/evfs/vg01/lvol5,

 

/dev/evfs/vx/dsk/rootdg/vol05, or

 

/dev/evfs/dsk/c2t0d1. The EVFS subsystem automatically

 

adds this field to the /etc/evfs/evfstab file when you

 

create the EVFS volume device file.

user_name.key_name

A valid key ID (user name and key pair name) for this EVFS

 

volume. The key pair must have a stored passphrase.

 

EVFS uses the stored passphrase to decrypt the private key,

 

then uses the private key to enable the EVFS volume.

options

Following are the valid options for the autostart feature:

 

boot_local

Causes EVFS to enable the EVFS volume

 

 

before local file systems in /etc/fstab are

 

 

mounted and before NFS and other

 

 

networking subsystems are started. Use this

 

 

flag if the private key and stored passphrase

 

 

used to enable the volume are located on the

 

 

root disk of the local system.

 

boot_local2 Enable the EVFS volume after local file

 

 

systems in /etc/fstab are mounted and

 

 

before NFS and other networking

subsystems are started. Use this flag if the private key and stored passphrase used to

72 Configuring an EVFS Volume

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HP UX Encrypted Volume and Filesystem (EVFS) manual Optional Configuring the Autostart Feature