ssh shell/ftp access for PocketBook Pro readers

[rkomar]

That's great! I made a link to your post with the attached zipfile in the first one in this thread, to make it easier for anybody to find. To be honest, my enthusiasm for providing apps for PocketBook devices went down significantly when they started culling functions from InkView and breaking my previous projects. It's good that you provided a build yourself because I probably wasn't going to get around to it with all the extra work required just to get the latest SDK working. Thanks for doing the work.

[CrazyCoder]

Thanks! I didn't try the jailbreak with the 6.10, it likely won't work, so reverted to 6.8 for now to have working SSH access with your instructions for changing /dev/ptmx permissions to get working TTY.

On my FW /usr/dev is actually a tar archive (/usr/dev.tar). So you need to unpack it, change the permissions of the ptmx file to 666 and pack it back for the changes to persist after the reboot.

I also forgot to remove debug logging from ssh/sshd_config in the shared zip. You may want to remove this line: "LogLevel DEBUG".

[rkomar]

Personally, I use utelnetd to get a terminal on my devices. Have you tried that instead of ssh? I still use scp to transfer documents over, though.

[CrazyCoder]

Oh, thanks for the tip! I'll give it a try.

[SERG-987]

Hello!

sonoma@iMac-Sonoma dist % ls ~/.ssh/id_rsa.pub

ls: /Users/sonoma/.ssh/id_rsa.pub: No such file or directory
sonoma@iMac-Sonoma dist % cd /Volumes/Pocket912/applications/pb_sshd/etc/ssh
sonoma@iMac-Sonoma ssh % ls
sshd_config
sonoma@iMac-Sonoma ssh % ssh-keygen -b 1024 -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/sonoma/.ssh/id_rsa):
Enter passphrase for "/Users/sonoma/.ssh/id_rsa" (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /Users/sonoma/.ssh/id_rsa
Your public key has been saved in /Users/sonoma/.ssh/id_rsa.pub
The key fingerprint is:
SHA256:vvgbXKV/MLf88bvA6HCXahFaiM96Cr0R37c7CE0YIvY sonoma@iMac-Sonoma.local
The key's randomart image is:
+---[RSA 1024]----+
| |
| o . . |
| . o o + . |
| E o * |
| .S B + . |
| .oo*.+o=.. |
| . o=o.++*+. |
| .oo++o+oo.o|
| .+*..o ooo=|
+----[SHA256]-----+
sonoma@iMac-Sonoma ssh % ls -h
authorized_keys2 sshd_config
sonoma@iMac-Sonoma ssh % cd
sonoma@iMac-Sonoma ~ % ssh -p 1124 sreader@192.168.1.233
ssh: connect to host 192.168.1.233 port 1124: Connection refused
sonoma@iMac-Sonoma ~ % ssh -p 1124 sreader@192.168.1.233
The authenticity of host '[192.168.1.233]:1124 ([192.168.1.233]:1124)' can't be established.
ECDSA key fingerprint is SHA256:jKWpCYVdw5jNKwRGQJETznygga7YrGFJdpstWAZSkt8 .
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])? y
Please type 'yes', 'no' or the fingerprint: yes
Warning: Permanently added '[192.168.1.233]:1124' (ECDSA) to the list of known hosts.
sreader@192.168.1.233's password:

What is the mistake? PocketBook 912.

[SERG-987]

sonoma@iMac-Sonoma ssh % cat /Volumes/Pocket912/applications/pb_sshd/etc/ssh/authorized_keys2

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQCuFUWywgWqRflqKs2mwg CqQdi3mYJrkkNEkwjT9W9ovD9RPWSH3ghL/gaIYDJc8z9mJS1Pjhup3jMEDgBAjMydD63B66O9h7Q5JyE5gAk B5wA9/ftBPLzeaVlYHFoAn5eszn/xta5RhsCHC7TuH/GI4MyRx+OVSn7b2B7KAj3xAQ== sonoma@iMac-Sonoma.local
sonoma@iMac-Sonoma ssh %

[CrazyCoder]

Did you dry 'reader' login instead of 'sreader'?

[SERG-987]

Originally Posted by CrazyCoder

Did you dry 'reader' login instead of 'sreader'?

Yes.


Here is the solution.

sonoma@iMac-Sonoma ~ % ssh -p 1124 -o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa sreader@192.168.1.233

PTY allocation request failed on channel 0
ls
bin
dev
ebrmain
etc
lib
lost+found
mnt
proc
sbin
sys
tmp
usr
var
df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 26.6M 17.7M 7.5M 70% /
none 128.0M 144.0K 127.9M 0% /var
tmpfs 124.4M 0 124.4M 0% /var/dev/shm
/dev/mmcblk0p3 133.7M 114.7M 19.1M 86% /ebrmain
/dev/mmcblk0p2 612.5M 114.4M 498.1M 19% /mnt/secure
/dev/loop0 105.3M 105.3M 0 100% /ebrmain/cramfs
/dev/mmcblk0p1 952.8M 349.7M 603.2M 37% /mnt/ext1
/dev/mmcblk1 7.3G 2.6G 4.7G 36% /mnt/ext2