GPG签名报错error: gpg failed to sign the data:

环境: Ubuntu24.04

今天在学习给github添加gpg签名，签名时提示

error: gpg failed to sign the data:
[GNUPG:] KEY_CONSIDERED 6Axxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2
[GNUPG:] BEGIN_SIGNING H10
[GNUPG:] PINENTRY_LAUNCHED 591451 curses 1.2.1 - xterm localhost:10.0 - 0/0 -
gpg: signing failed: Inappropriate ioctl for device
[GNUPG:] FAILURE sign 8xxxxxxx
gpg: signing failed: Inappropriate ioctl for device

fatal: failed to write commit object

想起之前整vscode远程开发环境时在.bashrc里写过export DISPLAY="localhost:11.0" ，手动export不好使，查到设置

export GPG_TTY=$(tty)

添加到.bashrc，再登录git commit -S 就能弹出输入phrase界面。

顺便说一下如何添加GPG密钥

1.生成密钥

gpg --full-generate-key

前三个回车，然后输入y，输入用户名和邮件地址(github邮件地址)，输入O。

2.导出GPG公钥

gpg --export -a [email protected]

将输出的内容复制，粘贴到github settings->SSH AND GPG Keys->New GPG key

客户端需要做的，查看密钥ID

gpg -k --keyid-format LONG

设置默认签名密钥，将xxxxx换成密钥ID。

git config --global user.signingkey xxxxx

需要签名时 -S即可签名

git commit -S -m "hello"

如需默认自动签名，可

git config --global commit.gpgsign true