history bug

[Youri Andropov]

Hi there.

Can anyone help me : I want to use ksh93 as shell, but :

Code:

freenas# history
-ksh93: hist: history file cannot open [Read-only file system]

FreeNAS is installed on a 8 GB usb thumb drive :

Code:

freenas# mount
/dev/ufs/FreeNASs1a on / (ufs, local, read-only)
devfs on /dev (devfs, local, multilabel)
/dev/md0 on /etc (ufs, local)
/dev/md1 on /mnt (ufs, local)
/dev/md2 on /var (ufs, local)
/dev/ufs/FreeNASs4 on /data (ufs, local, noatime, soft-updates)

Code:

freenas# ls /dev/da0*
/dev/da0        /dev/da0s1      /dev/da0s1a     /dev/da0s2      /dev/da0s3      /dev/da0s4

 

[cyberjock]

Uh.. you shouldn't be doing anything on the FreeNAS install. So what you are doing is already unapproved and not supported.

 

[Youri Andropov]

Is "history" unapproved and not supported ?! Are you kidding me ?

 

[Nindustries]

It's because the thumb drive is mounted read-only, to preserve the lifespan. (Except a partition for the settings)

Sent from my GT-I9300 using Tapatalk

 

[cyberjock]

No, trying to change the shell to ksh93 is unsupported. Nothing should be getting installed, edited, or deleted from the command line that affects any data on the USB. "history" works just fine... observe:

[root@freenas] ~# history
1 1:21 history

That error means your installation media is bad or someone was doing things they shouldn't be doing. I'll let you figure out which one is the case.

 

[Nindustries]

Oh, didnt even see the ksh93!
Don't mind me then

Sent from my GT-I9300 using Tapatalk

 

[Youri Andropov]

I'm just using ksh93 in my putty console. If not supported, why is it embedded in freenas distrib ?
My diagnostic is that "history" fails because freenas cannot write the "/.sh_history" file, because of the read-only "/" mount.

Your history works, but are you using a thumb drive too ? Can you type "mount" ?
What about mounting "/" as read-write ?

 

[cyberjock]

/ is read-only, but only kind of.

The OS thinks it's writeable, and it uses RAM to pretend it's writeable. But the USB stick is actually read-only, so anything you write to / or below doesn't go to the USB stick. So on reboot it's gone again.

You can mount / as writeable, and you'll be horribly sorry with the consequences. That's one of those things that we again say aren't recommended, etc. FreeNAS is an appliance. It's meant to be used as an appliance and nothing else. If this isn't acceptable for your use-case you may want to use FreeBSD instead.

As for why it's in the freenas distribution, I don't know. I won't pretend to make up excuses for why stuff is or isn't on the installation. Some of it is abandoned stuff. But, if you look through the manual you'll find no mention of using ksh93. That pretty much means you're doing stuff that isn't recommended or supported.

 

[Youri Andropov]

Ok, so even with ksh, history should work ?
My USB thumb drive is new, freenas is recently installed, so should I reinstall ?

I'm just trying to figure out if I have hardware or software issues.

 

[Nindustries]

Ok, so even with ksh, history should work ?
My USB thumb drive is new, freenas is recently installed, so should I reinstall ?

I'm just trying to figure out if I have hardware or software issues.

You don't, you're just not supposed to work in your freenas installation. Only on the jails.

 

[dlavigne]

I'm confused on how you're trying to use ksh. Are you switching to that shell in the Shell of the web GUI? Are you logging in as a user that has ksh selected as their shell in Users?

 

[Youri Andropov]

I connect with putty using SSH protocol.
I have modified the root user within the GUI to use ksh93 as default shell.
The GUI allows it, so I suppose this is supported, right ?

But I note that CTRL+P, arrow up and various keyboard shortcut don't work, as well as the history command.
When I switch to the 'bash' shell, history works...

 

[dlavigne]

While in the SSH session, what path does the SHELL variable point to if you type env ?

 

[Youri Andropov]

SHELL=/usr/local/bin/ksh93

 

[dlavigne]

That looks good. Which version of FreeNAS?

 

[Youri Andropov]

latest, 9.2.1.3
same problem with 9.2.1.4-beta

 

[dlavigne]

Please create a bug report at bugs.freenas.org and post the issue number here.

 

[Youri Andropov]

https://bugs.freenas.org/issues/4776