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Install an operating system on a drive
Note: To install an operating system (OS) on a drive, you need a USB flash drive, a computer that is
running a Linux OS, a VGA-capable monitor, and a USB keyboard.
CAUTION: The following procedure destroys any existing data on the USB flash drive.
1. Download the installation ISOs from IBM.
2. Insert the USB flash drive into the computer.
3. Determine the name of this drive.
#lsblk
4. Determine that the drive is not mounted.
#mount
5. Copy the ClevOS ISO to the USB flash drive.
#dd if=/{path}/{ClevOS}.iso of=/dev/{drivename} bs=1M
6. When copying is done, remove the USB flash drive from the computer.
7. Power down the device on which you want to install the OS.
• If the device is in an unresponsive state, it can be powered down by PDU or by removing the power
cables.
• If the device is still responding, do the following steps.
a. Log in to the device as localadmin.
b. At the command prompt, type poweroff/
8. Attach the USB keyboard and VGA monitor to the device.
9. Insert the USB flash drive in the remaining USB port.
10. Restart the machine while pressing F11 to enter the boot menu.
11. In the boot menu, select USB Key and press Enter. The device loads the operating system, and the
installer appears.
12. In the installer, choose OS only install. When installation completes, the device reboots.
13. After the device reboots, remove the USB flash drive.
Replace external rear components
Replace a power supply unit
If either of the two power supply units (PSU) fails, the other unit takes the full load and the system can
continue operation without interruption. The Universal Information LED on the control panel flashes
slowly until the failed unit is replaced.
The PSUs can be replaced without powering down the appliance. The redundant feature keeps the
appliance active while the failed PSU is replaced.
1. Push the release tab on the rear of the PSU, as shown in the following figure.
20 IBM Cloud Object Storage System: Accesser 3105 Appliance Manual
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