When I connect board by consol to computer it shows loading OS but I can not type any word or password by Keyboard.
I have some benna pi M21 ultra but 3 from them have this problem.
Could you guide me How solve my problem ?
This is important for me
Try to catch all the messages with “minicom” or another terminal program and publish it on some pastebin.com or similar portal. We will take a look at it.
Yes I can not type any thing and my keyboard do not work in this state .
please explain more this message.
“Second thing - there may some problem with the filesystem on your SD card, because kernel mounted it as a read-only.”
Do you use minicom? If yes - have you checked those options I mentioned?
The filesystem (ext4?) on SD card may be corrupted - and because of that the kernel remounted it as a read-only to don’t allow any modifications on this filesystem and corrupt it more.
No minicom is quite different program. I don’t use putty but you can try to look for similar options like in minicom. I mean - turn off all the flow control in putty options.
Thank you. i searched it . it works like Putty . Minicom is a text-based serial port communications program.
but I can not enter User name and password . could you suggest a solution that check UBOOT ?
I test it my hard ware part of uart is correct with out SD . The problem is with SD CARD .
Do you know about this message
" ext4_mb_generate_buddy:755: group 1, 1 clusters in bitmap, 0
in gd [ 68.820096] EXT4-fs (mmcblk0p2): Remounting filesystem read-only"