我正在全新安装Ubuntu Mate 18.04,系统本身没有问题,但我正在运行dmesg来查看错误和警告。我喜欢尝试让所有问题都得到处理,即使它们现在并没有引起明显的问题。
我有运行驱动程序390.48的Nvidia卡。
我已经处理了大多数问题,但是弹出四次的问题是这样的:
PKCS#7 signature not signed with a trusted key
这是dmesg中的+/-三行,表示其中两次出现的上下文(第二条实际捕获了两次):
[ 1.157284] ata3: SATA max UDMA/133 abar m2048@0xdf34b000 port 0xdf34b200 irq 126
[ 1.157285] ata4: SATA max UDMA/133 abar m2048@0xdf34b000 port 0xdf34b280 irq 126
[ 1.157535] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[ 1.168128] PKCS#7 signature not signed with a trusted key
[ 1.168135] nvidia: loading out-of-tree module taints kernel.
[ 1.168138] nvidia: module license 'NVIDIA' taints kernel.
[ 1.168138] Disabling lock debugging due to kernel taint
和:
[ 1.175479] nvidia-nvlink: Nvlink Core is being initialized, major device number 238
[ 1.175681] nvidia 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem
[ 1.175734] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 390.48 Thu Mar 22 00:42:57 PDT 2018 (using threaded interrupts)
[ 1.180047] PKCS#7 signature not signed with a trusted key
[ 1.181035] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 390.48 Wed Mar 21 23:48:34 PDT 2018
[ 1.181409] PKCS#7 signature not signed with a trusted key
[ 1.181814] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
问题所在的行是PKCS行,我知道驱动程序会“污染”内核。从上下文来看,PKCS警告似乎与Nvidia驱动程序有关。那是预期的吗?这是从Ubuntu存储库获得的驱动程序,而不是独立于Nvidia的驱动程序(如果有所不同)。通常,我可以查找Nvidia特定的错误和警告(通常是无害的),但是我没有找到任何内容。