archlinux 开启指纹登陆

1、安装 fprintd

sudo pacman -S fprintd --noconfirm

resolving dependencies...
looking for conflicting packages...

Packages (2) libfprint-0.7.0-1  fprintd-0.8.0-1

Total Download Size:   0.23 MiB
Total Installed Size:  0.95 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 libfprint-0.7.0-1-x...     0.0   B  0.00B/s 00:00 [----------------------]   0% libfprint-0.7.0-1-x...   109.7 KiB   164K/s 00:00 [###############-------]  72% libfprint-0.7.0-1-x...   152.0 KiB   661K/s 00:00 [######################] 100%
 fprintd-0.8.0-1-x86_64     0.0   B  0.00B/s 00:00 [----------------------]   0% fprintd-0.8.0-1-x86_64    82.6 KiB  2.02M/s 00:00 [######################] 100%
(0/2) checking keys in keyring                     [----------------------]   0%(1/2) checking keys in keyring                     [###########-----------]  50%(2/2) checking keys in keyring                     [######################] 100%
(0/2) checking package integrity                   [----------------------]   0%(1/2) checking package integrity                   [##############--------]  64%(2/2) checking package integrity                   [######################] 100%
(0/2) loading package files                        [----------------------]   0%(1/2) loading package files                        [##############--------]  64%(2/2) loading package files                        [######################] 100%
(0/2) checking for file conflicts                  [----------------------]   0%(1/2) checking for file conflicts                  [###########-----------]  50%(2/2) checking for file conflicts                  [######################] 100%
(0/2) checking available disk space                [----------------------]   0%(1/2) checking available disk space                [###########-----------]  50%(2/2) checking available disk space                [######################] 100%
:: Processing package changes...
(1/2) installing libfprint                         [----------------------]   0%(1/2) installing libfprint                         [######################] 100%
(2/2) installing fprintd                           [----------------------]   0%(2/2) installing fprintd                           [######################] 100%
:: Running post-transaction hooks...
(1/3) Reloading system manager configuration...
(2/3) Reloading device manager configuration...
(3/3) Arming ConditionNeedsUpdate...

2、运行 fprintd-enroll 录入指纹信息，默认是为当前用户录入右食指指纹

fprintd-enroll

不过你也可以用 -f 选项指定录入哪个手指的指纹

for finger in {left,right}-{thumb,{index,middle,ring,little}-finger};
do
    fprintd-enroll -f "$finger"
done

3、使用 fprintd-verify 可以验证录入的指纹

使用 fprintd-list 查看已经录入的指纹

使用 fprintd-delete 删除已经录入的指纹

4、配置 /etc/pam.d/system-local-login 中的本地登陆认证方法

在第一行加上 auth sufficient pam_fprintd.so 表示优先使用指纹登陆

sed -i  "/^$/aauth      sufficient pam_fprintd.so" /etc/pam.d/system-local-login

#%PAM-1.0

auth      sufficient pam_fprintd.so
auth      include   system-login
account   include   system-login
password  include   system-login
session   include   system-login