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LVM/LUKS should not be architecture-dependant whatsoever, same goes for most filesystems. So a multiboot scenario where you have both 32bit and 64bit Linux installed and they share the same VG or access each others partitions, should be entirely possible. You'll find the most dependencies in terms of software versions. For example recently a bug in the ...


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Your assumption is wrong. The stored data is not encrypted with your passphrase, but with a key that is stored in one out of several (normally eight) key slots. Your passphrase is only used to encrypt/decrypt this key. The key then encrypts/decrypts the data in the LUKS container. When you change that passphrase, the key is re-encrypted with the new ...


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In the end, I've followed the advices of @frostschutz. I've used an encrypted LV as key ! lvcreate -L 4M -n LogVolKey vg cryptsetup luksFormat /dev/vg/LogVolKey (here we set the global passphrase) cryptsetup luksOpen /dev/vg/LogVolKey LogVolKeyDecrypted dd if=/dev/urandom of=/dev/mapper/LogVolKeyDecrypted cryptsetup luksFormat /dev/vg/LogVolXxx (here we ...


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Starting with Fedora upgrade process has moved from the installer to FedUp, which you run from the system to be upgraded. (You can use the RPMs on the DVD media you have, although fetching them from the network is the recommended route.) Further instructions on the FedUp page. Make sure you check a few F18→F20 gotchas on the common bugs page — make sure you ...


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No, LUKS only supports PBKDF2 as the key derivation function. PBKDF2 is built on a cryptographic hash function, and you can select the hash function with --hash, as well as the iteration count via --iter-time. All supported hash functions are equally secure for this use case; a higher iteration count makes the job proportionally harder for the attacker but ...


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You may use whatever hashing algorithm the kernel has in stock, so the answer is in principle yes (if someone bothers to implement it in the kernel) but in practice no.



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