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Old 11-01-2020, 04:30 AM   #1
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Can't install tarsnap on Ubuntu groovy 20.10

I followed the directions to install tarsnap backup at but "sudo apt-get install tarsnap" fails with "E: Unable to locate package tarsnap" during the "Initial setup" step:

chris@mortar:~$ wget
--2020-11-01 02:40:40--
Resolving (
Connecting to (||:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1810 (1.8K) [application/pgp-signature]
Saving to: ‘tarsnap-deb-packaging-key.asc’

tarsnap-deb-packagi 100%[===================>] 1.77K --.-KB/s in 0s

2020-11-01 02:40:40 (77.9 MB/s) - ‘tarsnap-deb-packaging-key.asc’ saved [1810/1810]

chris@mortar:~$ gpg --list-packets tarsnap-deb-packaging-key.asc | grep signature
:signature packet: algo 1, keyid FC72A10BF6B692AA
:signature packet: algo 17, keyid 38CECA690C6A6A6E

chris@mortar:~$ sudo apt-key add tarsnap-deb-packaging-key.asc
[sudo] password for chris:
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).

chris@mortar:~$ file tarsnap-deb-packaging-key.asc
tarsnap-deb-packaging-key.asc: PGP public key block Public-Key (old)

chris@mortar:~$ echo "deb$(lsb_release -s -c) ./" | sudo tee -a /etc/apt/sources.list.d/tarsnap.list
deb ./

chris@mortar:~$ sudo apt-get update
Hit:1 groovy InRelease
Hit:2 groovy-updates InRelease
Hit:3 groovy-backports InRelease
Ign:4 ./ InRelease
Err:5 ./ Release
404 Not Found [IP: 80]
Get:6 groovy-security InRelease [108 kB]
Get:7 groovy-security/main amd64 DEP-11 Metadata [2,580 B]
Get:8 groovy-security/universe amd64 DEP-11 Metadata [1,804 B]
Reading package lists... Done
E: The repository ' ./ Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

chris@mortar:~$ sudo apt-get install tarsnap
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package tarsnap

I'm not familiar enough with Ubuntu to figure this out. Thanks for any help.
Old 11-05-2020, 12:19 AM   #2
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I'd try:
apt search tarsnap
sometimes it needs a version number at 'apt-get install'?

Add: did you also see:
sudo dpkg -i tarsnap_*.deb

Last edited by jamison20000e; 11-05-2020 at 12:26 AM. Reason: Added why that's usually my first try


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