我正在遵循指示使用命令行和 GnuPG 从 Debian、Ubuntu 或 Mint 安装制作中尾巴，基于Debian，U盘。
已完成最后一行失败的所有步骤gpg: error reading key: public key not found，而预期输出到命令sig! 0x9C31503C6D866396 2015-02-03 Stefano Zacchiroli <[email protected]>gpg --keyid-format 0xlong --check-sigs A490D0F4D311A4153E2BB7CADBB802B258ACD84F
masi@masi:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 8.7 (jessie)
Release: 8.7
Codename: jessie
masi@masi:~$ wget https://tails.boum.org/tails-signing.key
--2017-02-26 08:47:14-- https://tails.boum.org/tails-signing.key
Resolving tails.boum.org (tails.boum.org)... 204.13.164.188
Connecting to tails.boum.org (tails.boum.org)|204.13.164.188|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 459593 (449K) [application/pgp-keys]
Saving to: ‘tails-signing.key’
tails-signing.key 100%[=====================>] 448.82K 351KB/s in 1.3s
2017-02-26 08:47:17 (351 KB/s) - ‘tails-signing.key’ saved [459593/459593]
masi@masi:~$ gpg --import < tails-signing.key
gpg: key 58ACD84F: public key "Tails developers (offline long-term identity key) <[email protected]>" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
gpg: no ultimately trusted keys found
masi@masi:~$ su
Password:
root@masi:/home/masi# apt-get install debian-keyring
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libx265-79 linux-image-4.6.0-0.bpo.1-amd64 linux-image-4.7.0-0.bpo.1-amd64
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
debian-keyring
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 52.4 MB of archives.
After this operation, 58.0 MB of additional disk space will be used.
Get:1 http://ftp.fi.debian.org/debian/ jessie/main debian-keyring all 2015.04.10 [52.4 MB]
Fetched 52.4 MB in 35s (1,458 kB/s)
Selecting previously unselected package debian-keyring.
(Reading database ... 316032 files and directories currently installed.)
Preparing to unpack .../debian-keyring_2015.04.10_all.deb ...
Unpacking debian-keyring (2015.04.10) ...
Setting up debian-keyring (2015.04.10) ...
root@masi:/home/masi# gpg --keyring=/usr/share/keyrings/debian-keyring.gpg --export [email protected] | gpg --import
gpg: key 6D866396: public key "Stefano Zacchiroli <[email protected]>" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
gpg: no ultimately trusted keys found
root@masi:/home/masi# gpg --keyid-format 0xlong --check-sigs A490D0F4D311A4153E2BB7CADBB802B258ACD84F
gpg: error reading key: public key not found
操作系统：Debian 8.7
硬件：华硕 Zenbook UX303UB
答案1
您尚未导入您尝试检查签名的 Tails 密钥：
$ gpg --recv-key A490D0F4D311A4153E2BB7CADBB802B258ACD84F
$ gpg --check-sigs A490D0F4D311A4153E2BB7CADBB802B258ACD84F
pub rsa4096 2015-01-18 [C] [expires: 2018-01-11]
A490D0F4D311A4153E2BB7CADBB802B258ACD84F
uid [ unknown] Tails developers (offline long-term identity key) <[email protected]>
sig! 9C31503C6D866396 2015-02-03 Stefano Zacchiroli <[email protected]>
sig!3 DBB802B258ACD84F 2015-09-27 Tails developers (offline long-term identity key) <[email protected]>
sig!3 DBB802B258ACD84F 2016-08-30 Tails developers (offline long-term identity key) <[email protected]>
sig!3 DBB802B258ACD84F 2015-01-18 Tails developers (offline long-term identity key) <[email protected]>
uid [ unknown] Tails developers <[email protected]>
sig!3 DBB802B258ACD84F 2015-09-27 Tails developers (offline long-term identity key) <[email protected]>
sig!3 DBB802B258ACD84F 2016-08-30 Tails developers (offline long-term identity key) <[email protected]>
sub rsa4096 2015-01-18 [S] [expires: 2018-01-11]
sig! DBB802B258ACD84F 2016-08-30 Tails developers (offline long-term identity key) <tails@bgpg: 9 good signatures
gpg: 1124 signatures not checked due to missing keys
oum.org>
sub rsa4096 2015-01-18 [S] [expires: 2018-01-11]
sig! DBB802B258ACD84F 2016-08-30 Tails developers (offline long-term identity key) <[email protected]>
sub rsa4096 2016-08-30 [S] [expires: 2018-01-11]
sig! DBB802B258ACD84F 2016-08-30 Tails developers (offline long-term identity key) <[email protected]>
好吧，你做到了，但你是以普通用户的身份进行的，同时尝试以 root 身份检查签名。您现在有两个密钥环，一个包含您的用户帐户中的 Tails 密钥，另一个包含根帐户中的 Debian 开发人员密钥。
sudo这是您应该使用和的原因之一很少发现自己拥有一个交互式 root shell。