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#926 Re: Hardware & System Configuration » [SOLVED] rsyncd - permission issue » 2022-04-30 16:59:54

Hello:

chris2be8 wrote:

First try ls -ld /stuff on groucho (I suspect you are trying to access a dir in the root directory). If it looks as if the ID should be able to write there then try touch /stuff/test1 as that ID to make sure.

I may be confusing you as my user groucho gets used everywhere.

My Devuan box:

groucho@devuan:~$ ls -ld /media/
drwxr-xr-x 8 root root 4096 Mar 16 16:38 /media/
groucho@devuan:~$ 

groucho@devuan:~$ ls -ld /media/stuff
drwxr-xr-x 25 groucho groucho 4096 Apr 28 07:32 /media/stuff
groucho@devuan:~$ 

groucho@devuan:~$ touch /media/stuff/test1 

groucho@devuan:~$ ls -ld /media/stuff/test1 
-rw-r--r-- 1 groucho groucho 0 Apr 30 13:42 /media/stuff/test1
groucho@devuan:~$ 

The NAS:

groucho@OpenWrt:~$ ls -ld /mnt/sda3
drwxr-xr-x    5 root     root          4096 Apr 28 17:53 /mnt/sda3
groucho@OpenWrt:~$

groucho@OpenWrt:~$ ls -ld /mnt/sda3/stuff
drwxrwxrwx    2 groucho  groucho       4096 Apr 29 18:47 /mnt/sda3/stuff
groucho@OpenWrt:~$

groucho@OpenWrt:~$ touch /mnt/sda3/stuff/test1

groucho@OpenWrt:~$ ls -ld /mnt/sda3/stuff/test1
-rw-r--r--    1 groucho  groucho          0 Apr 30 13:44 /mnt/sda3/stuff/test1
groucho@OpenWrt:~$ 
chris2be8 wrote:

... then try rsync -av /media/stuff/firefox.oldfile  rsync://groucho@192.168.1.3:stuff (assuming stuff is in your home dir on groucho).

No.
The /home/groucho dir on the NAS is very limited, just for admin use.
Actually, OpenWRT (mostly used in routers) by default only has root access, no users.

The /mnt/sda3/ partition (~1TB) is where everything gets sent.

root@OpenWrt:~# blkid
/dev/sda1: UUID="xxx" BLOCK_SIZE="1024" TYPE="ext2" PARTUUID="xxx"
/dev/sda2: LABEL="rootfs" UUID="yyy" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="yyy"
/dev/sda3: LABEL="data" UUID="zzz" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="zzz"
root@OpenWrt:~# 
root@OpenWrt:~# mount
--- snip ---
/dev/sda3 on /mnt/sda3 type ext4 (rw,relatime)
--- snip ---
root@OpenWrt:~# 

Thanks for your input.

Best,

A.

#927 Hardware & System Configuration » [SOLVED] rsyncd - permission issue » 2022-04-30 01:00:51

Altoid
Replies: 4

Hello:

I have discovered that the only way to get a half decent link between my Devuan box (GbE port) and my NAS (GbE port) is to use the rsync protocol.
ie: no compression/no encryption with a daemon ie: rsyncd running on one end.

Anyone curious about the details see Can a pocket router go fast?

The problem is that the now ubiquous ssh is only seen a half of what it is: very secure cryptographic network protocol.
What it really is (YMMV) is a very flexible, efficient and easy to use network protocol which also has the ability to be very secure.

Hence the difficulty of being able to use it without encryption.

But I digress.

After a lot of tinkering I have managed to set up an rsync daemon on the NAS as well as the modules required by what I want to do.

eg:

The user is member of the right groups:

:~$ groups
daemon adm mail ftp users network ntp groucho
:~$ 

The modules relate to the directories receiving the data are all owned by the user:

:/mnt/sda3$ ls -l
drwxrwxrwx    4 groucho  groucho       4096 Apr 25 19:03 bkups
drwxrwxrwx    2 groucho  groucho       4096 Apr 29 18:47 stuff
drwxrwxrwx    2 groucho  groucho       4096 Apr 28 17:53 testdir
:/mnt/sda3$ 

The directories from where the data is sent (Devuan box) are all owned by the user:

groucho@devuan:/media$ ls -l /media
total 24
drwxr-x---   2 groucho groucho 4096 Feb  9 19:46 300Gb
drwxr-x---   5 groucho groucho 4096 Jan 30 18:07 bkups
drwxr-x---+  2 root    root    4096 Apr 21 19:57 groucho
drwxr-xr-x   9 groucho groucho 4096 Apr 28 07:25 storage
drwxr-xr-x  25 groucho groucho 4096 Apr 28 07:32 stuff
groucho@devuan:/media$ 

The daemon is running:

:~# service rsyncd status
running
:~# 

The command line is, as far as I can see, correct:

groucho@devuan:~$ rsync -av /media/stuff/firefox.oldfile  rsync://groucho@192.168.1.3:/stuff

But, much to my chagrin, the result is not the expected one:

groucho@devuan:~$ rsync -av /media/stuff/firefox.oldfile  rsync://groucho@192.168.1.3:/stuff
sending incremental file list
firefox.oldfile
rsync: [receiver] mkstemp "/.firefox.oldfile.pPHKBp" (in stuff) failed: Permission denied (13)

sent 85,833,476 bytes  received 134 bytes   24,523,888.57 bytes/sec
total size is 85,812,416  speedup is 1.00
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1207) [sender=3.1.3]
groucho@devuan:~$ 

But not all is bad news:  24,523,888.57 bytes/sec is 3.5x what I was getting using the NAS's native dropbear application.

The /var/log/rsyncd.log file on the NAS reads:

groucho@OpenWrt:~$ cat /var/log/rsyncd.log
2022/04/29 21:35:42 [2557] connect from UNDETERMINED (192.168.1.2)
2022/04/29 21:35:42 [2557] rsync allowed access on module stuff from UNDETERMINED (192.168.1.2)
2022/04/30 00:35:42 [2557] rsync to stuff/ from UNDETERMINED (192.168.1.2)
2022/04/30 00:35:42 [2557] receiving file list
2022/04/30 00:35:42 [2557] rsync: [receiver] mkstemp "/.firefox.oldfile.lNbFmM" (in stuff) failed: Permission denied (13)
groucho@OpenWrt:~$ 

The connection is established, rsync is allowed access to the target folder but when rsync attempts to (having received the file) write a temporary copy at destination, for some reason it it fails and the link is cut

Funny that it does not do a premission check before actually sending the file.

In any case, this seems to be a premission issue, probably the most common one rsync can have.
But I have not been able to find a solution.

Could someone shed some light on this for me?

Thanks in advance.

Best,

A.

#928 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-27 11:53:51

Hello:

GlennW wrote:

... an old 4 port modem/routrer as a switch.

PedroReina wrote:

... a really good piece of advice.

Indeed ...
I had first looked into that option. (See updated post @2022-04-25 17:34:35)

Locally, a used (decent quality) Gb router would cost me a bit more than what I paid for a four/five port unmanaged Gb switch.   
So I got one of those. Plug everything up, power it and that's it. Just works.

It has a metal case and is unobstusive (100*98*25) so that once I threw it under the desk, I forgot all about it.
Slipped my mind and neglected to mention it in the post, maybe the old cache is acting up.

Sorry about that.

Thank you both for your input.

Best,

A.

#929 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-26 19:04:57

Hello:

Ahh ...

Thanks a lot for that. ;^ )
I'll have a look and see what I get from using that method.

Best,

A.

#930 Re: Other Issues » [SOLVED-PENDING] First time r-e-i-s-u-b didn't work » 2022-04-26 16:28:44

Hello:

Head_on_a_Stick wrote:

@OP: create a file at /etc/sysctl.d/reisub.conf ...

Yes.
Creating the file in my box made it work.

And yes, it did work before without the /etc/sysctl.d/reisub.conf file.

Now, how long ago was before, I have not had a chance to use it much, so I really can't say.

O.

#931 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-26 16:03:18

Hello:

Head_on_a_Stick wrote:

... can't actually disable encryption over ssh ...
... use a simple cipher like Blowfish ...

# rsync -e "ssh -o compression=no -c blowfish" -a -stats ~/media/bckups root@192.168.1.3:/mnt/sda3

I'm afraid that dropbear does not do blowfish.

~$ rsync -e "ssh -o compression=no -c blowfish" -a --stats /media/bckups root@192.168.1.3:/mnt/sda3
Unknown cipher type 'blowfish'
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(235) [sender=3.1.3]
~$ 

See: https://dropbear.nl/mirror/CHANGES

CBC ciphers, 3DES, hmac-sha1-96, and x11 forwarding are now disabled by default.
They can be set in localoptions.h if required.
Blowfish has been removed.

Head_on_a_Stick wrote:

... without encryption use rsh instead, as supplied by the rsh-client & rsh-server packages ...

Unfortunately, I have not found the rsh package in the OpenWRT repository so that's a dead end.

Looking around for similar situations, I found this:

https://www.glidk.com/2021/12/22/benchm … ppy-router

It's a post by a chap using a small travel router with a lower spec than the WD-MBL:

Brand/Name		WD-MBL		GL-AR750
CPU:			PowePC 44x     Qualcomm Atheros
Model:			APM82181	QCA9531
CPU Cores:		1		1
CPU MHz:		800		650       <----- #
Flash Mb:		512		16
RAM MB:			256		128       <----- #
BogoMIPS:		1600		432.53    <----- # 

It would seem that he achieved speeds using just the rsync protocol and bypassing ssh.
I don't undertand how he's set this up and cannot find how to contact the guy.

The WD-MBL, save for the HDD/SD card difference, seems to be much heftier.
Could I be able to get at least his 10.0Mb/s?

Can you make any sense of what he's done there?

Thanks in advance.

A.

#932 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-25 20:37:23

Hello:

thierrybo wrote:

... backup my desktop and nas with rclone ("rsync for the cloud") ...

Hmm ...
Sorry, I don't do anything cloudy and have no trust in that type of thing.
But that's just me, YMMV.

Notwithstanding, thank you very much for your input. ;^)

Best,

A.

#933 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-25 20:34:35

Hello:

Head_on_a_Stick wrote:

Disable encryption for rsync operations over ssh ...

Altoid wrote:

My box has an on-board 82566DM-2 Gigabit Network adapter.     
The WD My Book NAS has a Gigabit Ethernet port.

---

Altoid, several days later wrote:

Forgot to mention that at this point I purchased/installed a four/five port unmanaged Gb switch (TL-SG105).

---

Part of this problem had to do with the CAT5e cables I was using.
Found out when I used ethtool to check the on-board ethernet adapter on the NAS and saw it was reporting 100M:

root@OpenWrt:~# ethtool eth0
Settings for eth0:
--- snip ---
    Advertised auto-negotiation: Yes
    Advertised FEC modes: Not reported
    Speed: 100Mb/s    <-------------------------- #####
    Duplex: Full
--- snip ---
root@OpenWrt:~# 

With a set of new CAT5e cables and properly negotiating 1000Mb/s between my box and the NAS, I tested the link with iperf:

root@OpenWrt:~# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size:  128 KByte (default)
------------------------------------------------------------
[  4] local 192.168.1.3 port 5001 connected with 192.168.1.2 port 35408
[ ID] Interval       Transfer     Bandwidth
[  4]  0.0-10.0 sec   771 MBytes   645 Mbits/sec
root@OpenWrt:~# 
groucho@devuan:~$ iperf -c 192.168.1.3
------------------------------------------------------------
Client connecting to 192.168.1.3, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.1.2 port 35408 connected with 192.168.1.3 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   771 MBytes   646 Mbits/sec
pcl@devuan:~$ 

Good enough, I guess.

But I was expecting something like the 94Mb /s I get between the NAS and my netbook which has a 10/100 ethernet adapter.
ie: if with a 10/100 connection I can get 94% of 100M, I was expecting at least 85% from the box to NAS connection at 1000M - 850 Mbits /s instead of 645 Mbits /s.

I'm assuming it is proportional, it probably isn't.

I've just finished running the same rsync job that took over 18 hours (first time/empty destination) the last time I ran it ie: before switching all the patch cables for new CAT5e ones and as a result getting the iperf speeds reported above, 646 Mbits/sec

All through the job, my conky panel reported a speed of ~7.45MiB /s

    Incoming: 114KiB /s
    Outgoing: 7.46MiB /s

These were the NAS's CPU/Memory loads during the job:

PID   Owner  CPU   Mem    Process
 213  root    9%    0%    kswapd0
1904  root   67%    0%    Dropbear
1905  root    0%    7%    rsync  --server
1906  root   22%   13%    rsync  --server

My guess is that NAS's CPU is totally maxed out.
ie: just kswap 9% + dropbear 67% + rsync 22% =>>> 98%

dropbear is the SSH2 server/client included in OpenWRT installation image, only 82k.
Evidently, with this hardware* a 67% CPU load is rather expensive to run.

*Applied Micro APM82181 @800 MHz + 256 MB RAM

Head_on_a_Stick wrote:

... use rsh instead of ssh (but only do the latter on a local network ...

I don't really neeed encryption as it is all local traffic.
ie: going nowhere else but from a back-up drive inside my box to the NAS under my desk.

But I do need rsync.
I use ssh to login to the NAS, how do I disable encryption?

Have never used/heard of rsh, have to look it up.

Thank you very much for your input.

Best,

A.

#934 Re: Hardware & System Configuration » Log4j vulnerabilty - Yet again » 2022-04-25 13:59:36

Hello:

Head_on_a_Stick wrote:

... fixed the bug with patches that introduced more bugs?

Yes ...
Which would mean that maybe they really didn't fix anything.

ie: just made it worse.

Fortunately I was able to purge that from my box.

Best,

A.

#935 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-22 11:18:31

Hello:

PedroReina wrote:

... had been very similiar to yours ...

Probably with the same infamous Telefonica ADSL routers. 8^|

PedroReina wrote:

You are correct ...
... with 4 up to 16 ports.

Great.
But I have no need for more than 4 ports at the moment.
Unless I get a very good price for one with more.

Thanks a lot for for your input.

Best,

A.

#936 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-22 07:45:35

Hello:

fsmithred wrote:

For the initial transfer, maybe you can bypass the router ...

Yes, that would work.
But it's rather a hassle to do the setup.

fsmithred wrote:

... you could add a faster router ...

I've been looking at second hand 4/5 port gigabit routers and desktop switches to plug in all my gear ie: box, netbook and NAS.
Nothing into the router save the new router/switch.

That way the link from box to NAS would go through the GB router/switch and not through the telco router with the 100M ports.
Am I correct?

If so, maybe just a 'dumb' desktop switch would do the trick?

fsmithred wrote:

Not sure about how the phone works but it might be possible ...

I am having a contentious issue with the local telco regarding VoIP, which they are intent in shoving down my throat.
I don't want it but they insist, to the point of threatening to cut my land line and leave me without a phone.

So I'd rather not muck with the ADSL router's setup.
They have a habit of resetting it remotely and screwing up the DNS settings pointing to a VM running inside my box (Pi-Hole+Unbound).

Think a 'dumb' switch may do well enough?

Thanks for your input.

Best,

A.

#937 Re: Other Issues » [SOLVED] rsync operation takes ages » 2022-04-22 00:03:39

Hello:

fsmithred wrote:

... 11MB/s with rsync or sftp on the local network, Cat6 with gigabit router.

My telco provided ADSL router config page says that LAN/WAN speed in both ports (my box and the NAS) is 100M/Full.

My box has an on-board 82566DM-2 Gigabit Network adapter.     
The WD My Book NAS has a Gigabit Ethernet port.

Seems the problem is the bloody router as everything goes through there.
No wonder.

Can't change the telco router. I'd lose my landline.

Any suggestions?

Thanks in advance.

Best,

A.

#938 Other Issues » [SOLVED] rsync operation takes ages » 2022-04-21 19:58:02

Altoid
Replies: 18

Hello:

For backing up what I have in my box I use two applications: Timeshift and BackInTime.

Timeshift takes system snapshots and BackInTime takes /user/home snapshots with the usual exclusions.
It has always worked quite well.

Up to now, all the generated snapshots were stored on a separate 2.5" SATA 500Gb drive rigged into the box.
It has one partition and two directories: /media/bkups/backintime and /media/bkups/timeshift.

This was not the ideal solution and after procrastinating for the longest while got a 1TB NAS to back-up the contents of that 500Gb drive.
The back-up drive inside the box is 38% used ie: 174GiB / 457GiB according to my conky panel.

Late yesterday I set about doing the first rsync from my box to the NAS.

[root@devuan ~]# rsync -a -stats ~/media/bckups root@192.168.1.3:/mnt/sda3

I started it @22:55 last night and it is still going ...   @17:00 ! 

I understand that a first sync to an empty drive takes much longer and that file size ie: a great many small files can make the operation last a lot longer.

But it's been almost 18 hours.
Maybe I should have cp'd everything over first?

The conky panel says:

Outgoing: 6.57MiB /s      total: 410GiB

Does that not seem like a lot of overhead?

Thanks in advance,

A.

#939 Hardware & System Configuration » Log4j vulnerabilty - Yet again » 2022-04-21 10:57:08

Altoid
Replies: 2

Hello:

For those who have not purged log4j from their systems:

Originally mentioned here (late December 2021) at Dev1 by hevidevi here ...

https://dev1galaxy.org/viewtopic.php?id=4715

... and then press here:

https://www.theregister.com/2022/03/16/ … net_log4j/

We now have this:

https://www.theregister.com/2022/04/20/ … j_patches/

Jessica Lyons Hardcastle @ The Register wrote:

Amazon Web Services has updated its Log4j security patches after it was discovered the original fixes made customer deployments vulnerable to container escape and privilege escalation.

The vulnerabilities introduced by Amazon's Log4j hotpatch – CVE-2021-3100, CVE-2021-3101, CVE-2022-0070, CVE-2022-0071 – are all high-severity bugs rated 8.8 out of 10 on the CVSS.

A.

#940 Re: Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-19 14:22:02

Hello:

Head_on_a_Stick wrote:

/usr/local/bin/ is not in your user's PATH ...

Yes. v

Altoid wrote:

I did not want to get into fussing with PATH.
I still have to find where it is set ...  8^|

Head_on_a_Stick wrote:

No idea ...

It is not in the *.img and editing /etc/*preinit did not work.
You have to create /etc/profile.d and populate it accordingly.

Thanks for your input.

Best,

A.

#941 Re: Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-19 10:15:38

Hello:

hevidevi wrote:

Thanks ...

You're welcome.

hevidevi wrote:

... a try myself.

Obviously, the use you can give it depends on the hardware you run it on.
eg: I use a MyBook Live which has a SATA HD instead of firmware.

As this would be OT/non Devuan, feel free to contact me.

Best,

A.

#942 Re: Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-18 17:13:18

Hello:

hevidevi wrote:

... a way to create a regular user on this OpenWrt ...

Yes.

It is not as straight forward as in a regular distribution because the tools are not installed by default.
In these router firmwares such as OpenWRT (an OS by any other name), space is at a premium.

So if it is not needed, it is not in the image to install.
And if you need it, make sure it is not in BusyBox before you install it.

That said, first you have to install at least these files from the OpenWRT repository:

To manage groups in your system.

shadow-groups
shadow-groupadd
shadow-groupdel

To manage users in your system:

shadow-useradd
shadow-userdel
shadow-usermod

You may also want to install sudo to put your user in /etc/sudoers.d/ with strict premissions for specific tasks that require elevated privileges.

You then proceed more or less as would be usual in a regular distributions.
Some things you'll have to do by hand.

There are quite a few more shadow-* files available but I still have to see what they are about.
eg: shadow-login, shadow-logout.d, shadow-passwd, etc. 

Unfortunately, the wiki pages about OpenWRT packages are all but empty.

Check this page: https://openwrt.org/docs/guide-user/base-system/users

groucho@OpenWrt:~$ whoami
groucho
groucho@OpenWrt:~$
groucho@OpenWrt:~$ groups
adm ftp users network ntp groucho
groucho@OpenWrt:~$ 

Edit: keep in mind that a regular user ie: not root can only log in via ssh.

I think there may be a file in the repository that would add something to the UI to be able to add another user.
Can't recall if it was OpenWRT or the WD software.

If you find anything interesting, please let let me know.

Best,

A.

#943 Re: Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-18 16:36:38

Hello:

Head_on_a_Stick wrote:

... could have moved /root/shutdown to /usr/bin/ ...

Originally I had it in /usr/local/bin.
As I could not get it to work unless I used ./, I moved it.
I did not want to get into fussing with PATH.
I still have to find where it is set ...  8^|

Head_on_a_Stick wrote:

... could have added /root/ to PATH ...

Hmm ...
I may have a thing for abusing cat ...
But I do know that is not a thing to do.

Head_on_a_Stick wrote:

... placing the actual script itself at /usr/bin/shutdown seems more sensible.

OK.
It works well as it is but I'll move it to its proper place later today.

Thanks for your input.

Best,

A.

#944 Re: Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-17 20:21:16

Hello:

Head_on_a_Stick wrote:
# mv /usr/bin/closebook.sh /usr/bin/shutdown

Perfect.  8^)
Thank you very much.

Could you tell me what I was doing wrong?
Was it having script to call another one?

Thanks in advance,

A.

#945 Re: Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-17 16:56:08

Hello:

hevidevi wrote:

... maybe in your closebook.sh script you should not declare the PATH=/bin:/sbin ...

I put it in just in case the system path has some issue.
Belt and suspenders thing.

But that would not seem to be the problem because the script is found and the executables in it are run properly.

What is not being found is the script that calls closebook.sh unless I run it as ./shutdown.

I just realised that the /root folder is not in the system PATH variable:

root@OpenWrt:~# $PATH
-ash: /usr/sbin:/usr/bin:/sbin:/bin: not found
root@OpenWrt:~# 

This one:

root@OpenWrt:~# ls
shutdown
root@OpenWrt:~# 

Which you can see here:

root@OpenWrt:/# ls
bin         dev         lib         mnt         proc        # root #        srv         tmp         var
boot        etc         lost+found  overlay     rom         sbin        sys         usr         www
root@OpenWrt:/# 

No idea as to how to follow up.
Surely it is not a good idea to have the root folder in the path.

Thanks for your input.

Best,

A.

#946 Hardware & System Configuration » [SOLVED] Script $PATH question » 2022-04-17 14:17:58

Altoid
Replies: 12

Hello:

Still playing around with my new My Book Live thingy, trying to set up a solution to the lack of a shutdown command in this PowerPC 44x processor.
This is the OpenWRT installed on the unit:

~# uname -a
Linux_book 5.4.179 #0 Wed Feb 16 20:29:10 2022 ppc GNU/Linux
~# 

I wrote a script to shut down the board gracefully:

root@OpenWrt:/usr/bin# cat closebook.sh
#!/bin/sh
# script to stop drive and shut down MBL
# gives ~15s from blue led <on> to unplug unit
PATH=/bin:/sbin

sync && wait && hdparm -Y /dev/sda && wait && halt
root@OpenWrt:/usr/bin# 

The script is executable:

root@OpenWrt:~# ls -l /usr/bin/closebook.sh
-rwxr-xr-x    1 root     root           166 Apr 17 08:40 /usr/bin/closebook.sh
root@OpenWrt:~# 

Once the front LED goes from green to blue, you have to physically disconnect power to the board within ~15s, otherwise a watchdog will sense the new situation and proceed to reboot the board.

For the time being, I call the /usr/bin/closebook.sh from ~/ with another script:

root@OpenWrt:~# cat shutdown 
#!/bin/sh
sh -c '/usr/bin/closebook.sh'
root@OpenWrt:~# 

The script is executable:

root@OpenWrt:~# ls -l shutdown
-rwxr--r--    1 root     root            40 Apr 17 10:07 shutdown
root@OpenWrt:~# 

It works as intended and have not had an instance where the plug was pulled late or where the watchdog reboot caused any issues.
Unsurprisingly, not shutting down in this manner will always cause dmesg to print this:

[    0.907630] EXT4-fs (sda2): warning: mounting unchecked fs, running e2fsck is recommended
[    5.802598] EXT4-fs (sda1): warning: mounting unchecked fs, running e2fsck is recommended

The main problem is that while /dev/sda1 but can be unmounted to run e2fsck, /dev/sda2 holds the rootfs and cannot be unmounted:

root@OpenWrt:~# blkid
--- snip ---
/dev/sda2: LABEL="rootfs" UUID="ff313567-e9f1-5a5d-9895-3ba130b4a864" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="228c756a-02"
--- snip ---
root@OpenWrt:~# 

But I digress ...

The thing is that to run the script I have to do it with ./, otherwise it is not found:

root@OpenWrt:~# shutdown
-ash: shutdown: not found
root@OpenWrt:~# 

This even though I am running it as root and it is located in what would be home directory:

root@OpenWrt:~# ls
shutdown
root@OpenWrt:~# 

The system's $PATH:

root@OpenWrt:~# $PATH
-ash: /usr/sbin:/usr/bin:/sbin:/bin: not found
root@OpenWrt:~# 

I'm sure it is a $PATH issue ...

What am I doing wrong?

Thanks in advance,

A.

#947 Re: Hardware & System Configuration » [SOLVED] Bash history configuration » 2022-04-15 22:44:59

Hello:

hevidevi wrote:

... that system would have to enable some sort of admin ...
... possible to build busybox ash, bash with certain flags to enable ...

Could be.
But the idea is to avoid building anything with/for OpenWRT as it would complicate eventual sysupgrades.

I found this:
https://forum.sailfishos.org/t/busybox- … sh/6808/11

Not really a big deal.
When I finally get this NAS figured out and running as I want, I won't be needing access all the time like I'm having to do now.
I'll mark this thread solved.

Thanks for your input.

A.

#948 Re: Off-topic » Why don't we just fork systemd and remove unneccessary bloat? » 2022-04-15 22:32:39

Hello:

golinux wrote:

Why would anyone want systemd in the first place?

Indeed ...
+1  8^D

systemd is the absolute opposite of basic Linux philosophy.
ie: Write programs that do one thing and do it well.   

A.

#949 Re: Hardware & System Configuration » [SOLVED] Bash history configuration » 2022-04-14 14:32:57

Hello:

hevidevi wrote:

try these in your .bashrc if you do not already have them.

export HISTSIZE=10000
export HISTFILESIZE=10000
export HISTCONTROL=ignorespace:ignoredups

Hmm ...
I don't have a user set up on this system.
Maybe that's the reason? Have not had time to set up sudo either yet.

Edit:

I keep forgetting that this is a small footprint OS for embedded systems, a very different type of Linux.
That means that I should look in the right place and not bug my fellow Dev1 members.

OpenWRT does not use bash but ash.

From: https://forum.openwrt.org/t/enable-bash-history/70815

Ash (mainly the dash fork) is also fairly popular in embedded Linux systems. dash version 0.3.8-5 was incorporated into BusyBox 3, the catch-all executable often employed in this area, and is used in distributions like DSLinux, Alpine Linux 1, Tiny Core Linux and Linux-based router firmware such as OpenWrt, Tomato and DD-WRT.

and

ash is provided by busybox, which provides all basic shell & Linux default app features in OpenWrt.
You can enable the history feature in busybox and recompile a personal version of it for yourself, so that you can have ash that remembers history.

ash is part of the firmware image and while I can install the bash package, it will not survive a system upgrade.

There seems to be a work-around, I'll have to investigate further.

Thanks a lot for your input.

Best,

A.

#950 Hardware & System Configuration » [SOLVED] Bash history configuration » 2022-04-14 14:07:55

Altoid
Replies: 4

Hello:

Playing around with SSH and my new My Book Live thingy, i have found a few things I'm used to do not work as expected.

This is the OpenWRT installed on the unit:

~# uname -a
Linux_book 5.4.179 #0 Wed Feb 16 20:29:10 2022 ppc GNU/Linux
~# 

 

dmesg shows this:

One of those things is the bash history I use a lot.
It is an important part of my slow-ish training to eventually master the use of the terminal as much as possible.
eg: the history does not survive a reboot of the system.

How can I fix this?

Thanks in advance,

A.

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