Yeah! Need add command  nomodeset after rhgb quite in grub configAfter that all work!
HelloPlease help me solving problemsWe have several servers Dell PowerEdge R610/620.Now, I have the task install on this servers CentOS 7 with kernel 4.4.First time i'm upgrade all firmware on last version.Second install CentOS 7 in UEFI modeIdrac virtual console worked.Then i'm upgrade kernel in CentOS 7 on 4.4 version with help this comand:rpm --import [URL] -Uvh [URL] --enablerepo=elrepo-kernel install -y kernel-ltgrub2-set-default 0grub2-mkconfig -o /boot/grub2/grub.cfgsystemctl rebootAfter restart virtual concole work on UEFI loading, but after select kernel 4.4 on grub virtual console have only black screen.But SSH work fine, and i can use host!Why this ?I try this:1. Disabled C1E and C state option on CPU2. I try restart idrac after load OS3. I try use VNC mode console, but there was identical problem, black screen on OSAttention on kernel 3 all work fine!I find same R610 host with CentOS 7 kernel 4, but with BIOS mode and old firmware on this hosts virtual console fine too!How fix this problem, how fix on UEFI mode ?Now i have this host with problem:PowerEdge R620Operating System CentOS LinuxOS Version release 7.7.1908 (Core) Kernel 4.4.219-1.el7.elrepo.x86_64BIOS Version 2.9.0Firmware Version 2.65.65.65Lifecycle Controller Firmware 2.65.65.65
idrac Virtual Console + CentOS 7 kernel 4.4 = black screen