Emerson ATCA-S201 Manuale Utente
RTM-ATCA-SXXX Overview
6806800H62B
ATCA‐S201 Installation and Use Guide
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8. Administrators may login as root. There is no password, and the ‘root’ user will
be asked to create one.
root password reset procedure (method 2)
This procedure is useful when the user has access to the serial console port and can
operate the U-boot environment. This secondary method allows you to clear the
operate the U-boot environment. This secondary method allows you to clear the
root password without removing the blade from the chassis but does require a
power cycle and some familiarity with U-boot.
1. Establish a connection to the serial port (RS232)
2. Reboot the blade:
# reboot
# reboot
3. Stop the normal boot sequence; enter the U-boot menu.
(see section 3.6.1)
4. Type the following series of U-boot commands:
uboot=> setenv resetroot 1
uboot=> run flashboot
uboot=> run flashboot
The above commands will continue the boot sequence and trigger the blades Linux
file system to clear the root password. No other passwords are cleared. Do not use
saveenv after setting resetroot, otherwise the root password will be reset on every
re-boot.
re-boot.