fail install: unknown intel pch(0xa2c5)detected in i7 7700k(asus z270 borad)

[sickfox]

It failed to install centos 7 in my new computer, get message like:

[2.002093] Unknown Intel PCH(0xa2c5) detected
[2.002096] Warning: Intel Kabylake processor with unknow PCH - this hardwar has not undergone upstream testing, Please consult http://wiki.centos.org//FAQ for more infomation

stop here:
[ OK ] Reached target Paths.
[ OK ] Reached target Basic System.
total five [ OK ] printed

install media is Centos 7 (1611) in USB media
it had beed installed in my dell T20 ,with no error occurs.
thanks for help.

[TrevorH]

When you see the initial boot menu which has options for "Install CentOS 7", "Verify Media and install..." and "Troubleshooting", highlight the top one and press the tab key. The remove "quiet" (and rhgb if it's present) from that and boot up. See if you see more messages than you currently do.

[sickfox]

When you see the initial boot menu which has options for "Install CentOS 7", "Verify Media and install..." and "Troubleshooting", highlight the top one and press the tab key. The remove "quiet" (and rhgb if it's present) from that and boot up. See if you see more messages than you currently do.

press or hold the tab key? both got nothing special happened,got the same messages
(selected the button "Install CentOS 7")

the whole messages is :

[2.002093] Unknown Intel PCH(0xa2c5) detected
[2.002096] Warning: Intel Kabylake processor with unknow PCH - this hardwar has not undergone upstream testing, Please consult http://wiki.centos.org//FAQ for more infomation

[ OK ] Started Device-Mapper Multipath Device Controller
Starting Open-iSCSI...
[ OK ] Started Open-iSCSI.
Starting dracut initqueue hook...
[ OK ] Started Show Plymouth Boot Screen
[ OK ] Reached target Paths.
[ OK ] Reached target Basic System.
_

[TrevorH]

Highlight the menu entry, hit tab just once and it should put the kernel command line on the bottom of the screen and the cursor at the end. Just backspace to delete "quiet" from it and press enter to start the install.

[sickfox]

Highlight the menu entry, hit tab just once and it should put the kernel command line on the bottom of the screen and the cursor at the end. Just backspace to delete "quiet" from it and press enter to start the install.

oh,got!(in centos, is press the key 'e' to edit the menu)

after press enter, got the message:

.....
[ OK ] Started Open-iSCSI
Starting dracut initqueue hook...
[ 8.335743] alg: No test for crc32 (crc32-pclmul)
[ 8.345092] MXM: GUID detected in BIOS
[ 8.345523] fb: conflicting fb hw usage nouveaufb vs EFI VGA - removing generic driver


my graphics card is gtx1070( asus gtx 1070 O8G si), is something wrong with it ?

[TrevorH]

Possibly that card is too new for the open source nouveau driver that ships with the CentOS kernel. Try using the Troubleshooting menu which has an option to install in plain VGA mode and see if that will work. If it does then the problem is likely in nouveau and once you are installed and yum update'ed to the latest 3.10.0-514.10.1.el7 kernel, install the ELRepo kmod-nvidia package and see if it works correctly with the proprietary nvidia driver.

[sickfox]

Possibly that card is too new for the open source nouveau driver that ships with the CentOS kernel. Try using the Troubleshooting menu which has an option to install in plain VGA mode and see if that will work. If it does then the problem is likely in nouveau and once you are installed and yum update'ed to the latest 3.10.0-514.10.1.el7 kernel, install the ELRepo kmod-nvidia package and see if it works correctly with the proprietary nvidia driver.

It seem to work now, thank for helps.

I don't have any vga output, but I switch the hdmi to the motherborad's one. And it get another error.

Failed to start switch root,
Warning: /dev/root does not exist

I modified the start menu,change the boot img
inst.stage2=hd:/dev/sdb4 (sdb4 is my usb media)

and it works now! Wonderful!