New System: Gigabyte Mother board. 32 G Ram 6 core AMD processor. ext4 FS ?? Disk: 0. SSD 240G sda cibtaubs o/s 1. WD 2 TB sdb contains /usr/local & /engr, /engr/users 2. WD 2 TB sdc contains /mariadb, & company library 3. WD 2 TB sdd contains /backup for other machines 4. WD 2 TB sde contains ... 5. Plextor DVD Mother board has 6 ports. These are physical disks setup during install, using a manual install. After install is complete, system reboots, everything works but there is no sde present in fstab and it is not mounted. According to RH website we are not exceeding any published limits. There is nothing abut this problem with GigaBye MB. This system does not use logical anything or any raid? Any clues as to what is going on. Don't know how to decode disk definition in fstab? My discription is how I set it up. Thank You Larry Linder fstab# UUID=1aa38030-b573-4537-bc9d-83f0a9748c9b / ext4 defaults 1 1 UUID=0f5a32b3-4f87-4d44-9c87-76da4ae6e5f5 /boot ext4 defaults 1 2 UUID=22E1-6183 /boot/efi vfat umask=0077,shortname=winnt 0 0 UUID=8137d36b-5bf7-4499-8c00-b62486bfe24b /engr ext4 defaults 1 2 UUID=d46c96a4-aad3-4cf0-a73c-826f8426d553 /home ext4 defaults 1 2 UUID=0636e7dd-b750-44da-97af-36e8b5296030 /mc_1 ext4 defaults 1 2 UUID=4f73b695-ef2a-4c7a-a535-88e2146d4f20 /mcdb ext4 defaults 1 2 UUID=6fd9460d-f036-4b67-b464-7017deb91f7d /mc_4 ext4 defaults 1 2 UUID=bec01426-038b-4600-8af9-7641bfd3f5cb /mc_lib ext4 defaults 1 2 UUID=48907d16-332e-40dd-a1f6-5dc240cc061a /opt ext4 defaults 1 2 UUID=937d8f1e-4d9c-4ed0-abbb-c37ea0336869 /tmp ext4 defaults 1 2 UUID=aee46348-f657-4132-87cb-7d1df890472b /usr ext4 defaults 1 2 UUID=544e3db7-f670-4c5d-903a-176b05d63bcf /usr/local ext4 defaults 1 2 UUID=8fca9d68-579a-475b-85f2-3ea08967cc93 /var ext4 defaults 1 2 UUID=2b39c434-723b-494e-8e3f-db5a8c4a1a14 swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 ~