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1. Features

USB storage mount

USB storage does not automatically mount. The supported file system is FAT. To use USB storage, first mount the device using the

following steps:

Create a mount directory for the USB.

ONIE:/ # mkdir /mnt/usb

View the fixed disks using fdisk.

ONIE:/mnt # fdisk -l

For internal storage:

Disk /dev/sda: 15.8 GB, 15829303296 bytes

255 heads, 63 sectors/track, 1924 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot

/dev/sda1

For USB storage:

Disk /dev/sdb: 30.9 GB, 30942946304 bytes

64 heads, 32 sectors/track, 29509 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot

Mount the device /dev/sdb to the /mnt/usb directory.

ONIE:/ # mount -t vfat /dev/sdb /mnt/usb

NOTE:

The following message displays if the /mnt/usb directory is missing: mount: mounting /dev/sdb

on /mnt/usb failed: No such file or directory.

NOTE:

The following message displays if the USB device is not seen: mount: mounting /dev/sdb on /mnt/usb

failed: No such device or address.

OPTIONAL: Add a device to the file systems table using the fstab command and mount the file systems.

ONIE:/ # vi /etc/fstab

# FSTAB entry for the ONIE-BOOT partition mounted on /boot

LABEL=ONIE-BOOT /mnt/onie-boot ext4

/dev/sdb

ONIE:/ # mount -a

The mount -a command mounts all the file systems as indicated in the /etc/fstab file.

Before you install an OS

After powering on the S4200-ON Series (S4248FB-ON and S4248FBL-ON) switch, it goes through a power-on self-test (POST).

POST runs every time the switch is initialized and checks the hardware components to determine if the switch is fully operational before

booting. After POST, the switch uses the Grub bootloader.

To select an entry, use the up and down arrow keys. Press Enter to select an operating software (OS) or enter e to edit the commands

before booting. Enter c for a command line. The selected entry runs automatically in the operating system.

Management ports

Start

End

1925

Start

End

/mnt/usb

vfat

Blocks

Id System

15458303+ ee EFI GPT

Blocks

Id System

defaults,rw,errors=remount-ro 0

defaults