Unable to restore files with Deja Dup on Kubuntu 18.04
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I made a backup of my home folder on Kubuntu 16.04 to an external hard drive using Deja Dup and a passphrase.
I then installed Kubuntu 18.04, formatting my hard drive entirely. I didn't copy any gpg keys across since I thought the passphrase would be all that I need, and indeed from this wiki it seems that is correct:
https://wiki.gnome.org/Apps/DejaDup/HowItWorks#Encryption
However, now I'm getting the following error when trying to restore:
GPGError: GPG Failed, see log below:
===== Begin GnuPG log =====
gpg: WARNING: "--no-use-agent" is an obsolete option - it has no effect
gpg: AES encrypted data
gpg: gcry_kdf_derive failed: Invalid data
gpg: encrypted with 1 passphrase
gpg: decryption failed: No secret key
===== End GnuPG log =====
It seems the problem is No secret key, but I am not sure how that key would be generated or why it is needed, since I only used a passphrase?
I then went and decrypted the difftar files myself, and then tried to do a restore with those, but that ended up giving me the following error:
Invalid data - SHA1 hash mismatch for file:
duplicity-inc.{datetime}.to.{datetime}.vol1.difftar
Calculated hash: some_checksum
Manifest hash: a_different_checksum
So, why did my restore not just ask for the passphrase and successfully decrypt with that? Does it need the username, computer name or some other parameters to be the same or is this a bug with Deja Dup/duplicity?
16.04 18.04 backup gnupg deja-dup
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
add a comment |
I made a backup of my home folder on Kubuntu 16.04 to an external hard drive using Deja Dup and a passphrase.
I then installed Kubuntu 18.04, formatting my hard drive entirely. I didn't copy any gpg keys across since I thought the passphrase would be all that I need, and indeed from this wiki it seems that is correct:
https://wiki.gnome.org/Apps/DejaDup/HowItWorks#Encryption
However, now I'm getting the following error when trying to restore:
GPGError: GPG Failed, see log below:
===== Begin GnuPG log =====
gpg: WARNING: "--no-use-agent" is an obsolete option - it has no effect
gpg: AES encrypted data
gpg: gcry_kdf_derive failed: Invalid data
gpg: encrypted with 1 passphrase
gpg: decryption failed: No secret key
===== End GnuPG log =====
It seems the problem is No secret key, but I am not sure how that key would be generated or why it is needed, since I only used a passphrase?
I then went and decrypted the difftar files myself, and then tried to do a restore with those, but that ended up giving me the following error:
Invalid data - SHA1 hash mismatch for file:
duplicity-inc.{datetime}.to.{datetime}.vol1.difftar
Calculated hash: some_checksum
Manifest hash: a_different_checksum
So, why did my restore not just ask for the passphrase and successfully decrypt with that? Does it need the username, computer name or some other parameters to be the same or is this a bug with Deja Dup/duplicity?
16.04 18.04 backup gnupg deja-dup
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
add a comment |
I made a backup of my home folder on Kubuntu 16.04 to an external hard drive using Deja Dup and a passphrase.
I then installed Kubuntu 18.04, formatting my hard drive entirely. I didn't copy any gpg keys across since I thought the passphrase would be all that I need, and indeed from this wiki it seems that is correct:
https://wiki.gnome.org/Apps/DejaDup/HowItWorks#Encryption
However, now I'm getting the following error when trying to restore:
GPGError: GPG Failed, see log below:
===== Begin GnuPG log =====
gpg: WARNING: "--no-use-agent" is an obsolete option - it has no effect
gpg: AES encrypted data
gpg: gcry_kdf_derive failed: Invalid data
gpg: encrypted with 1 passphrase
gpg: decryption failed: No secret key
===== End GnuPG log =====
It seems the problem is No secret key, but I am not sure how that key would be generated or why it is needed, since I only used a passphrase?
I then went and decrypted the difftar files myself, and then tried to do a restore with those, but that ended up giving me the following error:
Invalid data - SHA1 hash mismatch for file:
duplicity-inc.{datetime}.to.{datetime}.vol1.difftar
Calculated hash: some_checksum
Manifest hash: a_different_checksum
So, why did my restore not just ask for the passphrase and successfully decrypt with that? Does it need the username, computer name or some other parameters to be the same or is this a bug with Deja Dup/duplicity?
16.04 18.04 backup gnupg deja-dup
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
I made a backup of my home folder on Kubuntu 16.04 to an external hard drive using Deja Dup and a passphrase.
I then installed Kubuntu 18.04, formatting my hard drive entirely. I didn't copy any gpg keys across since I thought the passphrase would be all that I need, and indeed from this wiki it seems that is correct:
https://wiki.gnome.org/Apps/DejaDup/HowItWorks#Encryption
However, now I'm getting the following error when trying to restore:
GPGError: GPG Failed, see log below:
===== Begin GnuPG log =====
gpg: WARNING: "--no-use-agent" is an obsolete option - it has no effect
gpg: AES encrypted data
gpg: gcry_kdf_derive failed: Invalid data
gpg: encrypted with 1 passphrase
gpg: decryption failed: No secret key
===== End GnuPG log =====
It seems the problem is No secret key, but I am not sure how that key would be generated or why it is needed, since I only used a passphrase?
I then went and decrypted the difftar files myself, and then tried to do a restore with those, but that ended up giving me the following error:
Invalid data - SHA1 hash mismatch for file:
duplicity-inc.{datetime}.to.{datetime}.vol1.difftar
Calculated hash: some_checksum
Manifest hash: a_different_checksum
So, why did my restore not just ask for the passphrase and successfully decrypt with that? Does it need the username, computer name or some other parameters to be the same or is this a bug with Deja Dup/duplicity?
16.04 18.04 backup gnupg deja-dup
16.04 18.04 backup gnupg deja-dup
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
edited Feb 18 at 15:03
skepticscript
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
asked Feb 16 at 19:19
skepticscriptskepticscript
1201111
1201111
add a comment |
add a comment |
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