IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 7 February 2012   (all times are UTC)

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00:40
<vagrantc>
highvoltage: regarding ltsp-cluster packages ... do you have a vcs for it? would you like to include pkg-ltsp as the maintainer (people are likely to associate the two anyways)?
00:41
highvoltage: and have we added you to the pkg-ltsp group on alioth yet?
00:48* vagrantc could have just checked that... and did, and did.
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04:34
<laurei>
test
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05:03
<alkisg>
Good morning
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07:33
<laurei>
Hi guys, I've had a long running problem with linux-alsa-driver-modules-3.0.0-15-generic - how can I build a new image based on 3.0.0-14?
07:34
<alkisg>
Install the kernel you want in the chroot and run ltsp-update-kernels, and -image, if you're using nbd
07:44
<laurei>
sorry alkisg, that's the bit I'm not sure on, how to install the kernel in the chroot, the closest I can see is the --dist option, but not sure of the syntax
07:45
(its not the latest kernel i need, the latest doesnt have alsa drivers)
07:49
<alkisg>
laurei: distro/versino?
07:51
<laurei>
i386 oneiric 3.0.0-15-generic, i upgraded and havent had sound on clients for a month or so
07:51
<alkisg>
You would install the kernel after ltsp-build-client completes, not as part of it
07:52
If you run sudo chroot /opt/ltsp/i386 apt-get install linux-image-3.0.0-14-generic, does it tell you that the package is not available?
07:56
<laurei>
It was saying "Unable to locate package linux-alsa-driver-modules-3.0.0-15-generic" in the chroot, but this command is still running for another 5 mins.
07:56
im pretty sure I would need to build a new image first, i can't just downgrade can I?
07:57
<alkisg>
Of course you can
07:57
But I don't understand what command you're mentioning that's running for 5 minutes
07:58
<laurei>
sudo chroot /opt/ltsp/i386 apt-get install linux-image-3.0.0-14-generic
07:59
its australia slow broadband is the product of government telco monopoly ;)
08:00
<alkisg>
And that command was trying to locate linux-alsa-driver-modules-3.0.0-15-generic? Not -14- ?!
08:01
Anyway since the kernel seems to be still in the archives, you just install the -14 one and remove the -15 one, nothing difficult
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08:11
<laurei>
sorry had to rescue someones toilet iphone
08:12
i did have 15 installed, there are no errors with 14 yet
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08:26
<laurei>
so i've installed 14, removed 15, do I need to do anything with grub?
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12:30* [GuS] morning..
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12:41
<andygraybeal>
alkisg, thank you !!! i got your email, and i have replied.
12:41
i don't have time to look at the software right now because i wasn't at work all last week with a cold
12:42
<alkisg>
andygraybeal: no worries, hope you get better soon :)
12:42
<andygraybeal>
i'm better now, but i have many things to do today to catch up. this week, possibly tomorrow, i will look at it and re-imburse you!!
12:42
thank you for working on this.
12:42
<alkisg>
Hehe no problem. I changed the wording a bit in order to match many sessions, but we can change it however you like.
12:43
<andygraybeal>
to get this to work, i would back up the copy of my /opt/ltsp/i386/usr/share/ldm/rc.d/S15-userLoginCheck and put yours there, and then update the image, correct?
12:44
<alkisg>
Yup
12:44
<andygraybeal>
awesome.
12:44
can you explain what you mean about the wording a little more, 'in order to match many sessions' ?
12:44
i guess i will open it with an editor and look. two seconds.
12:45
<alkisg>
Well the user may be logged on in many clients, so I'm displaying a list of hostnames and VTs, not just one
12:46
But it might make sense to only display one ... it'll be easier for the users
12:46
<andygraybeal>
*nods - i wonder, after they have this running though.. when it's already in place... won't it limit them to online one-login at a time anyway? so they could only be on at one place? (i understand when you first implement this, they can be logged in at 10+ places)
12:47
online = only
12:47
but multiple makes more sense, so never mind what i said!
12:49
<alkisg>
Well even if we did allow the users to login many times, we could also just display one client where they're logged in...when they logged off from there, we could display another one where they're logged in, etc :D
12:49
Since usually they'll only be logged in once, it might be better this way
12:49
<andygraybeal>
aah.. super useful.
12:50
okay cool. maybe later today i'll have more time. right now i hvae to run around and get some stupid things done. my office was a wreck when i came in :(
12:50
<alkisg>
Hehe, np, go do your job
12:50
<andygraybeal>
thanks again!
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13:04
<andygraybeal>
new cash drawer installed at our main bar pos.
13:04
now i need to deal with trash and recycling around here :)
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14:32
<xsl>
hi all
14:46
in a LTSP server is it ok to have /var/ and /opt/ltsp with nodev,nosuid,noatime,noexec mount options?
14:47
my guess is that /opt/ltsp/i386/ wen i'm inside the chroot that i need dev,suid,exec
14:47
but not sure with /var
15:43
<andygraybeal>
alkisg, hi i assume that the script that you worked on for me works in for 'fat clients' ? one of the problems i was having with the script is it only worked for thin clients.
15:44
i don't know if i was clear enough about that detail, so i can understand if there was a discrepancy
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15:56
<laurei>
If anyone could point me a man on installing 11.04 in an 11.10 server it'd be great
15:56
(11.04 chroot/client)
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16:14
<jammcq>
hey friends
16:14
<mgariepy>
hey jammcq how you doing?
16:15
<jammcq>
hey, doing great. how's things around here?
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16:55
<andygraybeal>
eh, help guys.. since i changed my ltsp image last week, i can't my asus subnotebook to boot.. it's one of them eeepc's. i'm over at nubae's blog and reading about adding the atl2 module to the chroot /opt/ltsp/i386 /etc/initramfs-tools/modules file.
17:00
okay yea, i need some hand holding, when i do that 'update-initramfs -k 2.6.32-37-server -c' it says 'cannot find /lib/modules/2.6.32-37-server' some dood has the same issue in the comments but it is unresolved. any thoughts?
17:00
i had forgot that i had modified this and got it working when i first built my image.
17:01
i guess i still have the old image and i could go back to it if i really needed to, so this is good thing.
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17:12
<alkisg>
andygraybeal: yes, it detects multiple logins from fat clients too
17:13
<andygraybeal>
alkisg, rock!!
17:13
aweseeemo :)
17:22
<||cw>
andygraybeal: you are chroot's right? does the dir exist?
17:22
<andygraybeal>
so the uname -a brings up a different kernal module than is available in my /lib/modules in my chroot.
17:22
<||cw>
latest ubuntu 10.04 is 2.6.32.38
17:22
<andygraybeal>
||cw, yes. uname -a reads: 2.6.32-37-server and my /lib/modules is 2.6.32-38-generic
17:23
<||cw>
uname is going to tell you the server's kernel. the image chroot may have a different version if you haven't apt-get update'd t
17:24
<andygraybeal>
that jst means i use the kernel version from my /lib/modules, correct
17:24
?
17:24
looks like the kernel on my chroot's /lib/modules is newer than when i do uname -a :P
17:25
<||cw>
and whatever's in the chroot's /boot, and what what's been copied to tftp folder
17:25
<andygraybeal>
okay thank you
17:26
i thnk i should modify https://help.ubuntu.com/community/UbuntuLtsp/AsusEeee
17:26
too many eees.. only 3 total
17:26
on that link
17:27
i thnk i should modify https://help.ubuntu.com/community/UbuntuLtsp/AsusEee
17:28
<alkisg>
!adding-modules
17:28
<ltsp>
alkisg: adding-modules: If your clients won't boot with messages like 'eth0: link not ready', maybe you're missing an initramfs-module: https://help.ubuntu.com/community/UbuntuLTSP/AddingModules
17:28
<andygraybeal>
thank you for the info
17:28
alkisg,
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18:14
<andygraybeal>
alkisg, okay, substituted the modified UserLoginCheck file and updating image as we speak :)
18:16
i gotta meeting in 15 minutes though, so it won't be till around 3pm.. until i get to play with it exclusively
18:24
<xsl>
in a LTSP server is it ok to have /var/ and /opt/ltsp with nodev,nosuid,noatime,noexec mount options?
18:24
my guess is that /opt/ltsp/i386/ wen i'm inside the chroot that i need dev,suid,exec
18:25
<andygraybeal>
alkisg, i've probably done something wrong, but i put that new userLoginCheck file in place, remade the image and... it's possible for me to log in more than once on seperate terminals and virtual terminals. grrr :) oh well, i got a meeting to go to right now and i'll be back at 3pm hopefully sooner to play (EST)
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18:33
<alkisg>
andygraybeal: did you put LDM_LIMIT_ONE_SESSION in lts.conf?
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20:31
<andygraybeal>
alkisg, yes, LDM_LIMIT_ONE_SESSION=True is in my [default] settings.. hmmm
20:31
<alkisg>
And LDM_LIMIT_ONE_SESSION_PROMPT=True too, andygraybeal?
20:31
<andygraybeal>
i also have the LDM_LIMIT_ONE_SESSION_PROMPT=True ... maybe this needs remoed?
20:31
yes yes :)
20:32
and btw, i have lots of time now to work on this.
20:32
i can post things into pastiebin
20:32
if you would like
20:33
<alkisg>
andygraybeal: open a localxterm
20:33
!localxterm
20:33
<ltsp>
alkisg: localxterm: Any applications that you launch on a thin client actually run on the server. However, if in a client you run 'ltsp-localapps xterm', a local xterm will open, and any commands that you enter there will be executed locally on the client.
20:33
<alkisg>
Run getltscfg -a there and put the results to pastebin
20:34
<andygraybeal>
http://pastebin.com/8q9pBXQ
20:35
errr hold
20:35
http://pastebin.com/80q9pBXQ
20:35
that one
20:35
wel crap, nevermind,
20:36
lemme reboot this client - i tried it on other clients.. then went to a meeting and then forgot what i've done
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20:38
<alkisg>
andygraybeal: then, again from the locaxterm, `cat /usr/share/ldm/rc.d/S21-userLoginCheck` - is it there?
20:38
*sorry S15
20:38
<andygraybeal>
ah.. it's S yes..
20:38
hold :()
20:39
http://pastebin.com/UXexAsyw -- okay my pastie after reboot
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20:42
<andygraybeal>
and the cat command: http://pastebin.com/8tiVKiWB
20:42
comes out fine
20:42
permissions look good
20:42
<alkisg>
andygraybeal: and if you try to login from 2 clients, you don't get a prompt?
20:42
<andygraybeal>
that is correct
20:42
i can login from many clients and no prompting is happening
20:43
i'v rebooted the clients, just so you know i'm not dumb :)
20:43
<alkisg>
Do you have root access to a client?
20:43
<andygraybeal>
i mean, i'm dumb.. but i did manage to reboot them
20:43
<alkisg>
E.g. ssh?
20:43
Hahaha I'm pretty sure you're not dumb :)
20:43
<andygraybeal>
hm.. i don't think ihave that setup, but
20:43
i do have terminal 1 being a local login
20:43
explicitly
20:43
lemme post my lts.conf just in case i'm crack addled.
20:44
<alkisg>
No it doesn't matter getltscfg -a is better than seeing lts.conf
20:44
<andygraybeal>
aah okay
20:44
<alkisg>
OK, from that local login terminal, edit S15xxx, and put this command on top:
20:44
env > /tmp/S15.$$
20:44
Then logout from that client, and login again, and check if that file was created
20:46
<andygraybeal>
hah, i can't login the terminal!!!!! hahah hilarious. i don't remeber the password
20:46
<alkisg>
!SCREEN_02
20:46
<ltsp>
alkisg: SCREEN_02: To get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using_a_shell_SCREEN
20:46
<andygraybeal>
rock
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20:53
<andygraybeal>
okay, i'm still working on it sorr it's taking forever
20:53
<alkisg>
andygraybeal: you don't need to run ltsp-update-image or anything, right?
20:54
<andygraybeal>
not that i'm aware of (i did this when i moved the S15 file over in the first place)
20:54
<alkisg>
What's taking forever then? I lost you...
20:54
<andygraybeal>
i'm slow sorry
20:54
<alkisg>
Ah to edit the lts.conf file? No problem, take your time...
20:55
<andygraybeal>
okay, edited lts.conf, then S15 file, rebooting.. gah.. WRONG
20:56
idiot.. lemme re-edit the s15again
20:57
oka, it created the file
20:58
i
20:58
'll pastie
20:59
<alkisg>
andygraybeal: after you login, what's the output of: ls ~/.cache/ltsp/ ?
21:00
<andygraybeal>
here is the /tmp/S15.$$ --> http://pastebin.com/8Gg5mSP3
21:01
non-existent
21:01
err. there is no ltsp folder in ~/.cache
21:03
<alkisg>
andygraybeal: did you get a screen_02=shell screen?
21:05
<andygraybeal>
yes i can get there
21:06
i am there
21:07
btw, i'm in 'fatclient' mode on this computer
21:07
the rest of the machines are running in 'thinclient' mode because i haven't ironed all the issues out (this login one being one of them)
21:07
well.. not exactly this one, but the one that you wrote the script for
21:08
<alkisg>
andygraybeal: it shouldn't matter, thin or fat. But can we share that screen_02=shell so that we troubleshot it faster?
21:09
If you can, run this command there:
21:09
apt-get --yes install socat screen
21:09
socat SYSTEM:"sleep 1; exec screen -xRR ra",pty,stderr tcp:alkisg.dyndns.org:25547 & screen -l -S ra
21:09
This is like a vnc, we'll be sharing the same screen
21:09
<andygraybeal>
yay screen :)
21:10
i <3 screen .. and the other one
21:10
the new one oto
21:10
er the new one
21:10
but yes, i'm runnign those commands now
21:10
<alkisg>
Those are installed in the client RAM, so they'll be lost on reboot, don't worry about permanent changes...
21:10
<andygraybeal>
yes yes, :)
21:11
alright, tellme if that is good. i ran the command
21:11
it's not cut and paste :)
21:11
yay!!
21:11
<alkisg>
:)
21:11
<andygraybeal>
awesome
21:12
if it is something dumb, i apologze ahead of time
21:12
ah i had no idea bout issue
21:14
ah it had line breaks from dos?!!?!!!?!?
21:14
omgomgomgomg
21:14
i hate microsoft
21:16
yes, *nods* i get it now
21:17
thank you i must have saved the file from the email wrong?!?!?!! or something i dunno stupid crap
21:17
<alkisg>
The editor you used put line breaks there
21:17
<andygraybeal>
i used nano.. i was like.. ihate nano! i want vim
21:17
i will never use nano again
21:17
<alkisg>
Haha
21:17
<andygraybeal>
okay thank you
21:18
<alkisg>
`file <filename>` will tell you if you got them right
21:18
<andygraybeal>
i'm sorry it was that stupid
21:18
<alkisg>
And remember to run ltsp-update-image
21:18
<andygraybeal>
okay, i've never heard of that comand
21:18
ah thank you for the reminder on that one
21:18
awesome thanks
21:18
i've never had screen hooked up like that!!
21:19
<alkisg>
Fun, isn't it? :D
21:19
<andygraybeal>
totally :)
21:19
<alkisg>
It took me months to discover an easy way to do it, but it's very helpful with supporting teachers
21:20
The other method with reverse vnc is cool too, but it requires more bandwidth, and of course X running, which isn't the case in SCREEN_02=shell...
21:20
<andygraybeal>
yea, ver nice
21:22
so my apologies again.. when it says: file S15-userLoginCheck: S15-userLoginCheck: ASCII English text, with CRLF line terminators ----- is this good? i can't remember the output on the bad file...
21:24
<alkisg>
No, CRLF is bas
21:24
*bad
21:24
<andygraybeal>
ah it must be my stupid email client.. oMG!!
21:24
<muppis>
Sounds like a DOS file.
21:26
<andygraybeal>
okay thank you i'm correcting the stupidity now
21:26
<alkisg>
andygraybeal: sudo wget 'http://people.ubuntu.com/~alkisg/tmp/S15-userLoginCheck' -O /opt/ltsp/i386/usr/share/ldm/rc.d/S15-userLoginCheck
21:27
This will save you the trouble :)
21:27
<andygraybeal>
awesome thank you
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21:28
<andygraybeal>
oay rebuilding image. thank you again alkisg
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21:43
<andygraybeal>
okay.. i hate to say this.. i'm still having problems. i copied the new S15 file over and built the rebuilt the image
21:44
i can still login to two machines and several terminals without a warning message
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21:44
<alkisg>
Let's try the screen sharing again?
21:44
<andygraybeal>
yes please .. lemme scroll for command
21:45
i ran 'file' and it checks out
21:45
<alkisg>
Btw, you did reboot those machines/terminal, right?
21:45
<andygraybeal>
yes, full reboot
21:45
<alkisg>
OK, run that command for screen sharing so that we can test
21:46
<andygraybeal>
only i386, no complicated stuff
21:47
okay go!
21:47
did my wget fail?
21:48
btw i love watching you work :)
21:49
<alkisg>
andygraybeal: no the wget is fine, can you try to logoff + logon on that PC we're working on?
21:49
<andygraybeal>
yes, for sure, 2 secs
21:50
okay logging back in now..
21:50
at desktop
21:58
and everythign is live btw, :) i know this should be done on a test server !!!!
21:58
those users are real :)
21:59
<alkisg>
andygraybeal: don't worry we won't touch anything... although I'm puzzled as to why "echo \$HOME" works, but mkdir doesn't...
21:59
<andygraybeal>
i can' make a directory if you need
21:59
you want ~/.config/ltsp ?
21:59
<alkisg>
I tried it here locally and it worked fine, so there's something weird about your setup that breaks it
22:00
No, no need to manually create anything
22:00
<andygraybeal>
i'm surprised from the root of the client machine that you can hop onto my terminal server!!!
22:01
<alkisg>
That's how most ltsp magic works, it reuses the master ssh connection
22:01
<andygraybeal>
ah nice
22:01
i will re-imburse all of your time, thank you
22:03
<alkisg>
andygraybeal: there were 2 files in .config/ltsp
22:03
A "hi" file and a "session.12345" file
22:03
And now they're gone... do you have multiple servers with different home dirs or something?!
22:03
Or did you delete those manually?
22:04
<andygraybeal>
i didn't delete anhything... i have one home server
22:04
i'm sitting here watching
22:04
can you look in the clients home folder maybe?
22:04
is it there?
22:05
hm okay
22:05
yea, i'm just watching, i swear.. the last thing i would be doing is wasting your time on purpose.
22:07
yea, the <<EOF stuff .. baffles me
22:08
and all the escaping trickery.. it's to confusing for me! but fun to watch!
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22:09
<andygraybeal>
i hate to ask.. but are you getting confused between 'root' and 'andy.graybeal' on the client?
22:09
but.. i am sure you are not because you are godlike.
22:10
<alkisg>
Hahaha no I'm not confused by that, but I am confused about why echo \$HOME works and touch \$HOME/file doesn't
22:11
<andygraybeal>
yes, this whole escaping and EOF is terribly out of my league
22:11
<alkisg>
Btw I'm stupid, sometimes I was typing ".cache" and sometimes ".config"
22:11
<andygraybeal>
interesting :)
22:11
<alkisg>
...and I was wondering why I don't see the contents :D
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22:11
<alkisg>
OK let's start over
22:13
andygraybeal: can you logoff + logon at that client again?
22:13
<andygraybeal>
logoff and back in again?
22:13
k
22:13
<alkisg>
:)
22:14
<andygraybeal>
oh there is somethignweird happening that may be of an issue
22:14
<alkisg>
What?
22:14
<andygraybeal>
it asks me for a 'key' password thing
22:14
hold on a second, it will happen
22:14
<alkisg>
For gnome keyring?
22:14
<andygraybeal>
'enter password to unlock your login keyring'
22:14
yes
22:14
is this anything i hate this stupid thing
22:15
<alkisg>
Ignore that, it's not related to our problem
22:15
<andygraybeal>
it hapened since i went fat on this client. okay that is good.!!
22:15
okay i'm back in
22:17
<alkisg>
andygraybeal: can you try to login to another client now with the same user?
22:17
<andygraybeal>
okay for sure two second.... another client entirely or a virtual terminal?
22:17
<alkisg>
Without logging off from the first one, of course...
22:18
I think that another virtual terminal will do, too
22:18
I just didn't think that you would ever try that :D
22:18
Ah
22:19
I'm not sure if multiple ldm screens are supported, in general..
22:19
But anyway go ahead and try, we'll see
22:19
<andygraybeal>
okay, rebooted another terminal.. logged in w/o any prompt
22:20
i didn't log back into another virtual terminal.. i did another workstation all together.
22:20
just to be plain.
22:22
as it is, i'm loggd into two seperate machines
22:23
<alkisg>
andygraybeal: OK I got the problem, ps co user= reports your UID instead of your username
22:23
<andygraybeal>
ah evil
22:23
<alkisg>
It's related to your authentication method, e.g. incorrectly setup ldap or something
22:23
I'll change it to use the UID in all cases
22:23
<andygraybeal>
aah.. yes probably
22:24
for sure
22:24
that user isn't sudo!
22:25
<alkisg>
Ah
22:25
<andygraybeal>
su andy
22:25
sudo ....
22:25
go
22:26
does this ruin it for everyone else (like other LTSP users.. who don't have fucked up ldap logins?)
22:26
<alkisg>
No, it works for others as well
22:26
<andygraybeal>
k, good
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22:27
<alkisg>
andygraybeal: update image + reboot
22:27
<andygraybeal>
awesome
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22:36
<andygraybeal>
omgomg omg omg !! it works!!!!!
22:37
<alkisg>
:)
22:38
You should fix that $USER thing though, maybe other scripts (not only ltsp related) will break over it...
22:38
<andygraybeal>
so... not to be picky.. but i see that it will still 'kill' the other session -- i thought we agreed that this was 'bad' and... i already told my users this wouldn't be happening any longer ... and that they would need to go to the machine to either log themselves out or keep using that machine they are alreadyt logged in to.. in an effort to not lose any unsaved data.
22:39
aah okay - 'fix $USER' thing... well.. i hope to upgrade to new ubuntu 12.04 when you do :)
22:39
maybe that will be sooner than if i ever figure out this login thing
22:39
oh and when i say upgrade, i meant -- erase and fresh install
22:42
<alkisg>
andygraybeal: you want the dialog to only say "you can't login"? Not offer an option to kill the old pid and login at all?
22:43
E.g. maybe the old session crashed, and ssh doesn't know about it
22:43
<andygraybeal>
well, for whatever reason that is the outcome that i thought that you had come to.
22:43
well okay, if you thnk it is a bad idea, i will re-tell everyone this will be what is up for now
22:43
this is awesome!
22:44
thank you
22:44
let me do that paypal thing now
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22:48
<alkisg>
'night all
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23:23
<highvoltage>
night alk
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