Emerson ATCA-S201 Manuel D’Utilisation
RTM-ATCA-SXXX Overview
6806800H62B
ATCA‐S201 Installation and Use Guide
22
Power-On
(Soft Reset)
Jumper 1: All FW Code retrieved
from “Customer”
Flash
Flash
Fetch “u-boot.bin”
from flash device
Jumper 1: All FW Code retrieved
from “Factory”
Flash
Flash
-Pause-
bootdelay
countdown
Key Pressed
No key
Pressed
Run contents of bootcmd
Fetch “uImage”
Linux OS Kernel
Fetch “rootfs”
Linux file system and
Applications
(iSCSI/NAS/Management)
Enter u-boot Prompt mode
Network boot
Manual IP network config
Flash recovery/rescue
Jumper 2:
Normal position
Normal position
Use encrypted Password file
Jumper 2:
Password reset
Password reset
Clear root password only
Normal boot sequence
Exception boot sequence
Exception boot sequence
Key
Figure 6 ATCA Blade boot sequence diagram
Note: ATCA-S201 jumper locations are illustrated in chapter 9 of this manual.
3.1.2 Flash boot device contents
As mentioned in the previous section, the ATCA-S201 contains two flash images,
which are preloaded with code at manufacturing. Each code image is divided into
four major functional sections. Overtime, the customer may periodically updated
individual sections with new code revisions, as outlined below:
individual sections with new code revisions, as outlined below:
U-boot code
Linux kernel code
File system code
User configuration settings
U-boot.bin
uImage
Rootfs.ext.gz.uboot
Flash contents
Source file name
Figure 7 Boot-Flash device contents