Fedora 27: Kernel upgrade to 4.14.8-300....no boot
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 Server is Lenovo RD640 
 o/s: Fedora 27
 installed kernel: 4.13.9.300Tried upgrading to 4.14.8-300...the system gets to the grub screen where I can see both available kernels...screen goes black...after waiting a few minutes, I ctrl-alt-del, reboot, choose 4.14..9-300 Anyone have a Lenovo server with upgraded kernel? 
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 Just curious, is this bare metal or a HV host? 
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 @dashrender said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Just curious, is this bare metal or a HV host? HV host 
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 Does selecting a previous kernel work okay? 
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 @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Does selecting a previous kernel work okay? Yes, but I only have 2 to choose from. 
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 @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Does selecting a previous kernel work okay? Yes, but I only have 2 to choose from. What's the journal say the problem is? Usually it says what's preventing boot 
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 @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Does selecting a previous kernel work okay? Yes, but I only have 2 to choose from. What's the journal say the problem is? Usually it says what's preventing boot I started looking through that journal & gave up! 
 I was doing this at 2AM on Xmas eve.
 I'll try again later today after biz hours.Is there a way to filter the journal output? 
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 @Tim_G Don't you have a Lenovo box w KVM on it? 
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 @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Does selecting a previous kernel work okay? Yes, but I only have 2 to choose from. What's the journal say the problem is? Usually it says what's preventing boot I started looking through that journal & gave up! 
 I was doing this at 2AM on Xmas eve.
 I'll try again later today after biz hours.Is there a way to filter the journal output? I usually look for red text or whatever it is. If none, then you gotta scan it for with your eyes for errors or warnings. 
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 @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @Tim_G Don't you have a Lenovo box w KVM on it? I don't have Lenovo anything. 
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 Looked through the journal, there aren't any errors that would cause it to not boot. 
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 "kk4ewt" on the fedora irc channel was helping me troubleshoot. On the same hardware, I can "live usb" Fedora 27 WS LXDE w 4.14.8-300 but this same kernel with F27 Server will not boot! 
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 I think I found the "issue".... 
 Under Manual Partitioning, for root (/) and boot (/boot), I'd been setting the file system to XFS.
 I just did a test install using root as XFS & boot set to ext4.
 I am now able to upgrade the kernel to 4.14.11-300
 ** My other installs with SuperMicro hardware do not have this problem
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 @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: I think I found the "issue".... 
 Under Manual Partitioning, for root (/) and boot (/boot), I'd been setting the file system to XFS.
 I just did a test install using root as XFS & boot set to ext4.
 I am now able to upgrade the kernel to 4.14.11-300
 ** My other installs with SuperMicro hardware do not have this problemThat's weird, I've been using XFS for / and /boot all along... perhaps it's SuperMicro related. 
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 @tim_g said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: That's weird, I've been using XFS for / and /boot all along... perhaps it's SuperMicro related. This problem only exists with my 2 Lenovo servers. 
 All of my SuperMicro boxes are fine with XFS for / and /boot.
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 @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Server is Lenovo RD640 
 o/s: Fedora 27
 installed kernel: 4.13.9.300Tried upgrading to 4.14.8-300...the system gets to the grub screen where I can see both available kernels...screen goes black...after waiting a few minutes, I ctrl-alt-del, reboot, choose 4.14..9-300 Anyone have a Lenovo server with upgraded kernel? I've experienced the boot issue while using 4.14.11, I had to turn off Kernel Page Table Isolation (KPTI). 
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 @black3dynamite said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Server is Lenovo RD640 
 o/s: Fedora 27
 installed kernel: 4.13.9.300Tried upgrading to 4.14.8-300...the system gets to the grub screen where I can see both available kernels...screen goes black...after waiting a few minutes, I ctrl-alt-del, reboot, choose 4.14..9-300 Anyone have a Lenovo server with upgraded kernel? I've experienced the boot issue while using 4.14.11, I had to turn off Kernel Page Table Isolation (KPTI). What flavor of hardware? 
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 @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @black3dynamite said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: @fateknollogee said in Fedora 27: Kernel upgrade to 4.14.8-300....no boot: Server is Lenovo RD640 
 o/s: Fedora 27
 installed kernel: 4.13.9.300Tried upgrading to 4.14.8-300...the system gets to the grub screen where I can see both available kernels...screen goes black...after waiting a few minutes, I ctrl-alt-del, reboot, choose 4.14..9-300 Anyone have a Lenovo server with upgraded kernel? I've experienced the boot issue while using 4.14.11, I had to turn off Kernel Page Table Isolation (KPTI). What flavor of hardware? On my very old lab server running Hyper-V 2012 R2. 
 Hardware: PowerEdge 2950
 CPU: Intel Xeon E5430
 VM: Fedora 27


