最近我了解了 BitTorrent Speed 功能和 BTT 加密货币 ( https://www.bittorrent.com/token/bittorrent-speed/ )，并想在 Ubuntu 上使用它。
我知道默认的 Ubuntu 风格默认捆绑了传输，但似乎只有 BitTorrent Classic（我相信它曾经被称为 uTorrent）和 BitTorrent Web 支持 BitTorrent Speed 功能。两者都仅适用于 Windows。我已经尝试在 WINE 下运行安装程序，但都崩溃了。
是否有支持 BitTorrent Speed 功能的 Ubuntu 20.04（或一般的 Linux）本机 BitTorrent 客户端？
每当我运行M-x package-refresh-contentsor时，我都会收到此错误M-x package-list-packages，这与 Emacs 密钥环更新有关：
Failed to verify signature archive-contents.sig:
No public key for 066DAFCB81E42C40 created at 2020-12-16T17:05:02-0500 using RSA
Command output:
gpg: Signature made Wed 16 Dec 2020 05:05:02 PM EST
gpg: using RSA key C433554766D3DDC64221BFAA066DAFCB81E42C40
gpg: Can't check signature: No public key
我正在尝试按照http://elpa.gnu.org/packages/gnu-elpa-keyring-update.html中的步骤手动更新 ELPA 密钥环。我无法使用M-x package-install RET gnu-elpa-keyring-update RET（它说[No match]当我发出该命令时）安装包。
在同一页面中，列出了手动修复此问题的三种不同方法。我尝试了前两个，但都不起作用。
$ gpg --homedir ~/.emacs.d/elpa/gnupg --receive-keys 066DAFCB81E42C40
gpg: keyserver receive failed: General error
$ gpg --homedir ~/.emacs.d/elpa/gnupg --quick-set-expire 474F05837FBDEF9B 1y
gpg: "474F05837FBDEF9B" is not a fingerprint
现在，我该如何尝试第三种方式（暂时禁用签名验证）？
一些系统细节：
$ emacs --version
GNU Emacs 25.2.2
Copyright (C) 2017 Free Software Foundation, Inc.
GNU Emacs comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of GNU Emacs
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.
$ uname -a
Linux jetson 4.9.140-tegra #1 SMP PREEMPT Tue Oct 27 21:02:37 PDT 2020 aarch64 aarch64 aarch64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
尝试rock-dkms为 AMD ROCm 安装 KFD 驱动程序时出现以下错误：
$ sudo apt install rock-dkms
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
rock-dkms-firmware
The following NEW packages will be installed:
rock-dkms rock-dkms-firmware
0 upgraded, 2 newly installed, 0 to remove and 14 not upgraded.
Need to get 0 B/11.6 MB of archives.
After this operation, 243 MB of additional disk space will be used.
Do you want to continue? [Y/n]
Selecting previously unselected package rock-dkms-firmware.
(Reading database ... 304692 files and directories currently installed.)
Preparing to unpack .../rock-dkms-firmware_1%3a3.10-27_all.deb ...
Unpacking rock-dkms-firmware (1:3.10-27) ...
Setting up rock-dkms-firmware (1:3.10-27) ...
Selecting previously unselected package rock-dkms.
(Reading database ... 305096 files and directories currently installed.)
Preparing to unpack .../rock-dkms_1%3a3.10-27_all.deb ...
Unpacking rock-dkms (1:3.10-27) ...
Setting up rock-dkms (1:3.10-27) ...
Loading new amdgpu-3.10-27 DKMS files...
Building for 5.4.0-56-generic
Building for architecture x86_64
Building initial module for 5.4.0-56-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/rock-dkms-firmware.0.crash'
Error! Bad return status for module build on kernel: 5.4.0-56-generic (x86_64)
Consult /var/lib/dkms/amdgpu/3.10-27/build/make.log for more information.
dpkg: error processing package rock-dkms (--configure):
installed rock-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
rock-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)
以下是 的内容/var/lib/dkms/amdgpu/3.10-27/build/make.log。
我在 Ubuntu 20.04.1 LTS x86_64 上。安装了两个 GPU：AMD Radeon RX Vega 64 和 NVIDIA GeForce GTX 1060 6 GB。
$ uname -a
Linux basecamp 5.4.0-56-generic #62-Ubuntu SMP Mon Nov 23 19:20:19 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
$ lspci -v | grep VGA
0a:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XL/XT [Radeon RX Vega 56/64] (rev c1) (prog-if 00 [VGA controller])
0b:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1060 6GB] (rev a1) (prog-if 00 [VGA controller])
任何帮助，将不胜感激。