I think that's correct for precise.
(precise2-amd64)root@impulse:/home/bdmurray/source-trees/update-notifier/trunk# do-release-upgrade -p --frontend DistUpgradeViewText Checking for a new Ubuntu release Get:1 Upgrade tool signature [198 B] Get:2 Upgrade tool [1156 kB] Fetched 1156 kB in 0s (0 B/s) authenticate 'trusty.tar.gz' against 'trusty.tar.gz.gpg' extracting 'trusty.tar.gz'
(precise2-amd64)root@impulse:/home/bdmurray/source-trees/update-notifier/trunk# gpg --list-packets /tmp/update-manager-uZ3x6f/trusty.tar.gz.gpg :signature packet: algo 17, keyid 40976EAF437D05B5 version 4, created 1443628514, md5len 0, sigclass 0x00 digest algo 2, begin of digest d0 f7 hashed subpkt 2 len 4 (sig created 2015-09-30) subpkt 16 len 8 (issuer key ID 40976EAF437D05B5) data: [160 bits] data: [160 bits]
I think that's correct for precise.
(precise2- amd64)root@ impulse: /home/bdmurray/ source- trees/update- notifier/ trunk# do-release-upgrade -p --frontend DistUpgradeViewText
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [198 B]
Get:2 Upgrade tool [1156 kB]
Fetched 1156 kB in 0s (0 B/s)
authenticate 'trusty.tar.gz' against 'trusty.tar.gz.gpg'
extracting 'trusty.tar.gz'
(precise2- amd64)root@ impulse: /home/bdmurray/ source- trees/update- notifier/ trunk# gpg --list-packets /tmp/update- manager- uZ3x6f/ trusty. tar.gz. gpg
:signature packet: algo 17, keyid 40976EAF437D05B5
version 4, created 1443628514, md5len 0, sigclass 0x00
digest algo 2, begin of digest d0 f7
hashed subpkt 2 len 4 (sig created 2015-09-30)
subpkt 16 len 8 (issuer key ID 40976EAF437D05B5)
data: [160 bits]
data: [160 bits]