Aria Operations for Logs 8.18.x
When the root (/) partition on the Aria Operations for Logs appliance is full due to the /var/log/messages file being too large, you are not able to change the expired root password and log in.
In order to log in as root and truncate the /var/log/messages file, you will need to enter single user mode.
Restart Guest OS or power on the virtual machine.e to launch the GNU GRUB edit menu. Navigate to the end of the line that starts with linux.rw init=/bin/bash which adds another option to the line.F10 or CTRL+X to boot the appliance.mount -o remount,rw / to mount the partition in read/write mode.ls -lh /var/log/messages to verify the size of the messages file./var/log/messages is several gigabytes in size, truncate it by running this command: truncate -s 0 /var/log/messagessync and press Enter to flush the data to disk.umount / and press Enter.reboot -f and press Enter.