Is there a way to manually assign usb drives to a specified device label. Is there a way to force two usb drives to be labeled as
/dev/sdc and /dev/sdd?
I decided to build an archive server for the purpose of backing up other fedora/CentOS desktops at the office. I built a machine and have installed CentOS 7.3 on it with all updates current. I also purchased a 3.0 usb sata drive cabinet (Orico ORICO 9548U3-BK) and installed two
5T black WD drives. There was no problem installing the usb cabinet or the drives. I formatted each drive with xfs as /dev/sdc and
/dev/sdd, and then combined them into a software mirrored raid with mdadm as /dev/md0.
Everything was working perfectly until I removed the terminal, keyboard and mouse and tried to reboot the machine. It took a while to figure out, but when the mouse and keyboard were removed the boot process assigns the usb drives differently which makes /dev/md0 created by mdadm fail.
My fstab file looks like :
/dev/mapper/CentOS_poar-root / xfs defaults 0 0
UUID=f915a354-28bf-4110-bec9-3767ef1fe52c /boot xfs defaults 0 0
/dev/mapper/CentOS_poar-home /home xfs defaults 0 0
/dev/mapper/CentOS_poar-u /u xfs defaults 0 0
/dev/mapper/CentOS_poar-swap swap swap defaults 0 0
/dev/sda /u0 btrfs defaults 0 0
# entries below were combined into one mirrored raid system
#/dev/sdc /u1 xfs defaults 0 0
#/dev/sdd /u2 xfs defaults 0 0
/dev/md0 /u1 xfs defaults 0 0
This works perfectly when a usb mouse and a usb keyboard are attached, but when I remove the mouse and keyboard the system will not boot because the usb drives are relabeled as /dev/sda and /dev/sdb.
The only way I have been able to make this archive server function is to keep a mouse and keyboard plugged in to the system, and even with the keyboard and mouse attached I can not do a software reboot, I am required to turn off the power supply for a couple of seconds and then turn it back on before I hit the power switch on the computer. I have played with the bios setting until my eyes are blurry, but have not been able to solve the problem. I am using a ASUS H110M-E/M.2 LGA
1151 Intel H110 HDMI SATA 6Gb/s USB 3.0 Micro ATX Motherboard.
My thought is that if I could force the usb drives to be labeled as
/dev/sdc and /dev/sdd whether the mouse and keyboard are attached or not, I might be able to fix the problem
Anyone have any ideas?
Thanks for your responses!!!!