[Bug 1854764] Re: Dell 5280 hangs on warm reboot after upgrading intel-microcode package

OK, just tried the upgrade: $ apt list --upgradable Listing... Done intel-microcode/bionic-updates,bionic-security 3.20191115.1ubuntu0.18.04.1 amd64 [upgradable from: 3.20180312.0~ubuntu18.04.1] linux-headers-generic/bionic-updates 4.15.0.72.74 amd64 [upgradable from: 4.15.0.70.72]

[Bug 1854764] Re: Dell 5280 hangs on warm reboot after upgrading intel-microcode package

Sorry, wrong repository - please ignore the previous post (I was still using the broken package version) Second attempt: $ sudo add-apt-repository ppa:ubuntu-security-proposed/ppa $ sudo apt-get update $ sudo apt install intel-microcode $ sudo reboot $ sudo reboot $ apt policy intel-microcode

[Bug 1854764] Re: Dell 5280 hangs on warm reboot after upgrading intel-microcode package

Thanks for looking into this! $ iucode-tool -S iucode-tool: system has processor(s) with signature 0x00050654 So, yes, you did the conversion correctly. BTW we are using legacy MBR boot mode in case this matters? -- You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 1854764] [NEW] Dell 5280 hangs on warm reboot after upgrading intel-microcode package

Public bug reported: We have brand-new Dell T 5280 workstations (Intel Xeon W-2133 3.6 GHz (3.9 GHz Turbo), 6 Cores) with latest BIOS (1.13.1) and Ubuntu 18.04.3 LTS $ uname -a Linux hostname 4.15.0-70-generic #79-Ubuntu SMP Tue Nov 12 10:36:11 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux $