> I attempted to install CentOS 7 x86_64 on my machine that has the > following hardware: > > Motherboard: ASRock X99 Taichi > BIOS: AMI v P1.40 08/04/2016 > CPU: Intel Core I7-5820K > RAM: 64 GB (8 x 8 GB DIMM) > Optical: LG Blu Ray 25 G / 50 G burner > Storage: 2 - 120GB PNY CS1311 SSD 4 - 4 TB Western Digital > hard drives > The 2 SSD drives are divided into 3 software RAID-1 > devices: > /dev/sda1 | /dev/sdb1 = /dev/md0 (2 GB) > /dev/md0 /boot > /dev/sda2 | /dev/sdb2 = /dev/md1 (77 GB) LVM > /dev/VG_opsys > /dev/vg_opsys/lv_root / 8 GB > /dev/vg_opsys/lv_archive /archive 2 GB > /dev/vg_opsys/lv_opt /opt 2 GB > /dev/vg_opsys/lv_tmp /tmp 5 GB > /dev/vg_opsys/lv_usr /usr 12 GB > /dev/vg_opsys/lv_usr_local /usr/local 2 GB > /dev/vg_opsys/lv_var /var 8 GB > /dev/sda3 | /dev/sdb3 = /dev/md2 (32 GB) LVM > /dev/vg_sysswap > /dev/vg_sysswap/lv_sysswap swap 16 GB > 4 - 4 TB Western Digital hard drives > The 4 WD drives are divided into a single software > RAID-10 device: > /sdc1 | /sdd1 | /sde1 | /sdf1 = /dev/md3 (7.28 > TB) LVM /dev/vg_jpd1data > /dev/vg_jpd1data/lv_dbmsu00 /dbmsu00 160 > GB > /dev/vg_jpd1data/lv_websoft /websoft 70 GB > ... ETC ... > > I like this configuration so I thought ... > > Installation attempt 1: > Machine had been running CentOS 6.10 x86_64 with no problems at all. But > I wanted to do some things on this machine and I didn't want to have to > do a upgrade next year. I backed up all of the data on another machine > so I wouldn't suffer a data loss. > Inserted the CentOS 7 DVD and rebooted - for whatever reason it didn't > see the DVD. > > Installation attempt 2: > Rebooted and selected F11 for the boot menu and selected the SATA device > for the Blu Ray (BTW, there was another selection that allowed me to > boot UEFI for the Blu Ray). > The installation continued and when I got the the storage screen I > selected all 6 storage devices. When I got to the point where I tried to > select all of the file systems (BTW, the /boot device was listed as > unknown) I wanted format the volumes /boot, OpSys, and swap and I wanted > to just mount the devices defined on the RAID-10 device. When I tried to > accept the definitions the install just hung at the point. I had to > power off the machine. One thing you could try is looking at the different virtual consoles where you can see what the installer is doing. Just press Alt&Ctrl&F1(-6) to see them. You should see there where it hangs. Regards, Simon