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WB5 root password recovery/en: различия между версиями
Новая страница: «==Root password recovery procedure on Wiren Board 5== # Plug the USB-UART adapter to the controller. The connection is described in detail on the page Debug_UAR…»
(Новая страница: «<!--{{DISPLAYTITLE:WB6 root password recovery}}-->») |
(Новая страница: «==Root password recovery procedure on Wiren Board 5== # Plug the USB-UART adapter to the controller. The connection is described in detail on the page Debug_UAR…») |
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| (не показана 1 промежуточная версия этого же участника) | |||
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<!--{{DISPLAYTITLE:WB6 root password recovery}}--> | <!--{{DISPLAYTITLE:WB6 root password recovery}}--> | ||
[[File:Stop_autoboot.png|thumb | 400px| | [[File:Stop_autoboot.png|thumb | 400px| uboot autoboot stop]] | ||
[[File:Stop_autoboot_commands.png|thumb | 400px|Stop_autoboot_commands.png| | [[File:Stop_autoboot_commands.png|thumb | 400px|Stop_autoboot_commands.png| Entering commands]] | ||
== | ==Root password recovery procedure on Wiren Board 5== | ||
# | # Plug the USB-UART adapter to the controller. The connection is described in detail on the page [[Debug_UART|Debug UART]]. Note that in the latest versions of the controller, the UART debug port is represented as a microUSB connector, so no additional USB-UART Converter is required. | ||
# | # Turn on the power of the controller and in the UART-console quickly press any key. | ||
# ''' | # '''Very fast''' sequentially enter the commands (it is better to copy them in advance to the clipboard):<br/><code>setenv optargs rootwait fixrtc single init=/bin/sh</code><br/><code>run bootcmd</code><br/>If the commands enter slowly (manually), the interrupted boot process will continue. | ||
# | # Load and get the system prompt <code>#</code> | ||
# | # Mount the root filesystem<br/><code>mount -n -o remount,rw /dev/mmcblk0p2 /</code><br/>and get the message <code> EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)</code> | ||
# | #Mount the partition from the configuration backup:<br/><code>mount /dev/mmcblk0p6 /mnt/data</code><br/>and get the message <code>EXT4-fs (mmcblk0p6): mounted filesystem with ordered data mode. Opts: (null)</code> | ||
# | #Enter the command <code>passwd</code> and change the password. Successful password change: <code>passwd: password updated successfully</code> | ||
# | #Copy the new password to the configuration backup section:<br/><code>cp /etc/shadow /mnt/data/etc</code> | ||
# | #Unmount all:<br/><code> # sync</code><br/><code> # umount /mnt/data</code><br/><code> # umount /</code> | ||
# | #Turn off and turn on the power again. The password is changed. | ||