![]() ![]() It'll be still pulled in and started, but the system will not wait for the device to show up and be unlocked, and boot will not fail if this is unsuccessful. This device will not be a hard dependency ofĬryptsetup.target. In particular, if the device is used for a mount point, it'll be unlocked automatically during boot, unless the mount point itself is also disabled with This means that it will not be automatically unlocked on boot, unless something else pulls it in. Local-fs.target, while the service to configure the network is usually only startedĬryptsetup.target. Otherwise, a dependency loop might be created where the mount point will be pulled in by Option should also be used for the mount point. Hint: if this device is used for a mount point that is specified in The service unit to set up this device will be ordered between It will be started after the network is available, similarly to Marks this cryptsetup device as requiring network. When this mode is used, the following options are ignored since they are provided by the LUKS header on the device: ![]() Specifies the timeout for the device on which the key file resides and falls back to a password if it could not be mounted. The default is to try all key slots in sequential order. If the key slot does not match the given passphrase or key, but another would, the setup of the device will fail regardless. Specifies the key slot to compare the passphrase or key against. This option is ignored in plain encryption mode, as the key file size is then given by the key size. Seeįor possible values and the default value of this option. Specifies the maximum number of bytes to read from the key file. Specifies the number of bytes to skip at the start of the key file. This option is only relevant for LUKS devices. Use a detached (separated) metadata device or file where the LUKS header is stored. Specifies the hash to use for password hashing. This improves performance on SSD storage but has security implications. A cipher with unpredictable IV values, such asĪllow discard requests to be passed through the encrypted block device. The following options are recognized:įor possible values and the default value of this option. The fourth field, if present, is a comma-delimited list of options. May prevent boot completion if the system does not have enough entropy to generate a truly random encryption key. Otherwise, the field is interpreted as an absolute path to a file containing the encryption password. "-", the password has to be manually entered during system boot. If the field is not present or the password is set to The third field specifies the encryption password. The second field contains a path to the underlying block device or file, or a specification of a block device via The first field contains the name of the resulting encrypted block device the device is set up within ![]() When no mode is specified in the options field and the block device contains a LUKS signature, it is opened as a LUKS device otherwise, it is assumed to be in raw dm-crypt (plain mode) format. Setting up encrypted block devices using this file supports three encryption modes: LUKS, TrueCrypt and plain. The first two fields are mandatory, the remaining two are optional. ![]() Each of the remaining lines describes one encrypted block device. Crypttab - Configuration for encrypted block devicesįile describes encrypted block devices that are set up during system boot.Ĭharacter are ignored. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |