Users Guide

Recover Linux password
If you lose or forget your Linux administrator password, you can reconfigure it from the CLI using the system-user
linuxadmin password {clear-text-password | hashed-password} command in CONFIGURATION mode. Save
the password using the write memory command. For example:
OS10(config)# system-user linuxadmin password Dell@Force10!@
OS10(config)# exit
OS10# write memory
For more information, see Linuxadmin user configuration.
If you lose both OS10 user and Linux admin passwords so that you cannot log in to the CLI, you must recover the linuxadmin
password from GRUB:
1. Connect to the serial console port. The serial settings are 115,200 baud, 8 data bits, and no parity.
2. Reboot or power up the system.
3. Press ESC at the Grub prompt to view the boot menu. The OS10-A partition is selected by default.
+-------------------------------------+
|*OS10-A |
| OS10-B |
| ONIE |
+-------------------------------------+
4. Press e to open the OS10 GRUB editor.
a. Use the arrow keys to navigate to the end of the line that has set os_debug_args= and then add init=/bin/
bash.
+---------------------------------------------------------+
|setparams 'OS10-A' |
| |
| set os_debug_args="init=/bin/bash" |
| select_image A |
| boot_os |
| |
+---------------------------------------------------------+
5. Press Ctrl + x to reboot your system. If Ctrl + x does not cause the system to reboot, press Alt + 0. The system boots to a
root shell without a password.
6. At the root prompt, enter usermod -s /bin/bash linuxadmin to enable the linuxadmin user.
root@OS10: /# usermod -s /bin/bash linuxadmin
7. Verify the linuxadmin password status by entering the passwd -S linuxadmin command.
If the password is locked, L is displayed following linuxadmin in the command output. Unlock the password by entering
the passwd -u linuxadmin command.
root@OS10:~# passwd -S linuxadmin
linuxadmin L 10/01/2018 0 99999 7 -1
root@OS10:~# passwd -u linuxadmin
passwd: password expiry information changed.
8. If the OS10 version is 10.5.1.0, then run the following command.
root@OS10: /# sed -ibak '31,41s/^/#/g' /opt/dell/os10/
bin/recover_linuxadmin_password.sh
1772
Troubleshoot Dell EMC SmartFabric OS10