# pacman -S linux
resolving dependencies...
looking for conflicting packages...
Packages (1) linux-5.9.1.arch1-1
Total Installed Size: 79.03 MiB
Net Upgrade Size: 0.00 MiB
checking keyring...
checking package integrity...
loading package files...
checking for file conflicts...
checking available disk space...
:: Processing package changes...
reinstalling linux...
:: Running post-transaction hooks...
(1/4) Arming ConditionNeedsUpdate...
(2/4) Updating module dependencies...
(3/4) Updating linux initcpios...
Can't load key from file '/path/to/db.key'
140046324300800:error:02001002:system library:fopen:No such file or directory:crypto/bio/bss_file.c:69:fopen('/path/to/db.key','r')
140046324300800:error:2006D080:BIO routines:BIO_new_file:no such file:crypto/bio/bss_file.c:76:
(4/4) Signing Kernel for SecureBoot