Re: [DNG] Xorg stopped working after upgrade to Beowulf

[viverna]

il devuanizzato spiralofhope  il 26-09-20 
02:45:21 ha scritto:

On Tue, 22 Sep 2020 20:30:53 +0200
viverna  wrote:


or xinit with custom command line, for example:
xinit /home/user/.xinitrc -- /etc/X11/xinit/xserverrc :0 vt2 -keeptty


I had some entertainment dealing with this problem over the years.
When I switched to Devuan I had to tinker a bit.  I can't remember any
of the details, but this is what I ended with in my zsh login script:



string="$TTY"
# I don't know why this works, even though $TTY is actually /dev/pts1
pattern='/dev/tty'
tty_to_use=''
# I could rewrite this in POSIX sh if someone needs
tty_to_use="${string##${pattern}}"
tty_to_use="${string##*${pattern}}"

xinit  /etc/X11/xinit/xinitrc -- /usr/bin/X :$(( tty_to_use - 1 ))  \
vt"$tty_to_use"  -auth "$( \tempfile  --prefix='serverauth.' )"

logout

xinit parameters sometimes needs tuning.
I use my script for start X (don't use startx).
In beowulf just upgraded xinit with usual parameters (ascii works well) 
don't work.

I digged inside startx script and get this:


# Automatically determine an unused $DISPLAY
d=0
while true ; do
   [ -e "/tmp/.X$d-lock" -o -S "/tmp/.X11-unix/X$d" ] || break
   d=$(($d + 1))
done
defaultdisplay=":$d"
unset d


and I added this:


if tty|grep "/dev/tty[0-9]*" >/dev/null ; then
VT="vt`tty|grep "/dev/tty[0-9]*"|sed 's/\/dev\/tty//g'`"
else
printf "Virtual terminal not found.\n"
return 1
fi


Passing $defaultdisplay (display number) and $VT (virtual terminal) X 
start without problem.








If anyone really really wants to dig through my history of desperate
experimentation throughout multiple Linuxes:

https://github.com/spiralofhope/shell-random/commits/master/live/zsh/dot_zsh/4-login.sh

Thanks interesting.

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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[spiralofhope]

On Tue, 22 Sep 2020 20:30:53 +0200
viverna  wrote:

> or xinit with custom command line, for example:
> xinit /home/user/.xinitrc -- /etc/X11/xinit/xserverrc :0 vt2 -keeptty

I had some entertainment dealing with this problem over the years.
When I switched to Devuan I had to tinker a bit.  I can't remember any
of the details, but this is what I ended with in my zsh login script:



string="$TTY"
# I don't know why this works, even though $TTY is actually /dev/pts1
pattern='/dev/tty'
tty_to_use=''
# I could rewrite this in POSIX sh if someone needs
tty_to_use="${string##${pattern}}"
tty_to_use="${string##*${pattern}}"

xinit  /etc/X11/xinit/xinitrc -- /usr/bin/X :$(( tty_to_use - 1 ))  \
vt"$tty_to_use"  -auth "$( \tempfile  --prefix='serverauth.' )"

logout





If anyone really really wants to dig through my history of desperate
experimentation throughout multiple Linuxes:

https://github.com/spiralofhope/shell-random/commits/master/live/zsh/dot_zsh/4-login.sh
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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[Marc Shapiro via Dng]

Actually, it says that it cannot connect to the Wicd daemon, or something
to that effect.

Sorry,
  Marc

On Tue, Sep 22, 2020, 9:52 PM Marc Shapiro  wrote:

> Yes, that solved the issue.  I installed elogind and libpam-elogind,
> rebooted and X now starts up for all three users.
>
> There is only one issue.  For only ONE of the three users, after X starts,
> my dughter's login gets a popup that says the Wicd client cannot be
> started, make sure the user is in the netdev group.  Well, she wasn't in
> the netdev group, so I logged her out, added her to the group, logged her
> back in and verified that she was in netdev, then ran startx.  I am still
> getting the same error.  Is there something else that is required for the
> Wicd client?
>
> Marc
>
>
> On 9/22/20 7:43 AM, Marc Shapiro wrote:
>
> I do use startx from a terminal login, so this sounds like it could be the
> problem.  I'll check it out when I get home, tonight and pass the results
> to the list.
>
> Thanks.
>
> Marc
>
>
>
> On 9/21/20 11:16 PM, wirelessduck--- via Dng wrote:
>
>
>
> On 22 Sep 2020, at 12:36, Marc Shapiro via Dng 
>  wrote:
>
> I have pretty much decided that there is no way to upgrade my Debian
> system to Buster and keep it usable without systemd.  Since I am set up for
> multiboot, including Devuan Ascii, I decided to upgrade that to Beowulf and
> see if that will work for me and the others using this box.
>
> After upgrading (following the instructions for upgrading an existing
> Devuan system), I rebooted the computer.
>
> First, I booted into my Debian Stretch partition to make sure that
> everything was still good, there.  Boot, login, start Xorg. All looks good.
>
> Logout and reboot into Beowulf.
>
> Boot and login went fine.  Starting Xorg, not so well.  Tried all three
> users with no luck.  This worked before the upgrade.  Tried as root.
> Success!  So root can start Xorg, but not an ordinary user.  Any ideas what
> might be wrong.  It looks like a permissions issue, but I don't know enough
> about how X actually starts up to know where to look.  Anything that you
> want me to post to help debug this?
>
> Any help appreciated.
>
>
> Marc
>
>
> If you are starting X from a terminal/tty, the Beowulf release notes
> mention the required configuration to start X as non-root.
>
> https://files.devuan.org/devuan_beowulf/Release_notes.txt
>
> —
> Tom
>
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>
>
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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[Marc Shapiro via Dng]

Yes, that solved the issue.  I installed elogind and libpam-elogind, 
rebooted and X now starts up for all three users.


There is only one issue.  For only ONE of the three users, after X 
starts, my dughter's login gets a popup that says the Wicd client cannot 
be started, make sure the user is in the netdev group.  Well, she wasn't 
in the netdev group, so I logged her out, added her to the group, logged 
her back in and verified that she was in netdev, then ran startx.  I am 
still getting the same error.  Is there something else that is required 
for the Wicd client?


Marc


On 9/22/20 7:43 AM, Marc Shapiro wrote:


I do use startx from a terminal login, so this sounds like it could be 
the problem.  I'll check it out when I get home, tonight and pass the 
results to the list.


Thanks.

Marc



On 9/21/20 11:16 PM, wirelessduck--- via Dng wrote:



On 22 Sep 2020, at 12:36, Marc Shapiro via Dng  
wrote:


I have pretty much decided that there is no way to upgrade my 
Debian system to Buster and keep it usable without systemd.  Since I 
am set up for multiboot, including Devuan Ascii, I decided to 
upgrade that to Beowulf and see if that will work for me and the 
others using this box.


After upgrading (following the instructions for upgrading an 
existing Devuan system), I rebooted the computer.


First, I booted into my Debian Stretch partition to make sure that 
everything was still good, there.  Boot, login, start Xorg. All 
looks good.


Logout and reboot into Beowulf.

Boot and login went fine.  Starting Xorg, not so well.  Tried all 
three users with no luck.  This worked before the upgrade.  Tried as 
root.  Success!  So root can start Xorg, but not an ordinary user.  
Any ideas what might be wrong.  It looks like a permissions issue, 
but I don't know enough about how X actually starts up to know where 
to look.  Anything that you want me to post to help debug this?


Any help appreciated.


Marc


If you are starting X from a terminal/tty, the Beowulf release notes 
mention the required configuration to start X as non-root.


https://files.devuan.org/devuan_beowulf/Release_notes.txt 



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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[viverna]

il devuanizzato Marc Shapiro via Dng  il 22-09-20 16:43:42 
ha scritto:
I do use startx from a terminal login, so this sounds like it could be 
the problem.  I'll check it out when I get home, tonight and pass the 
results to the list.

I installed xserver-xorg-legacy then:
chmod +s /usr/lib/xorg/Xorg

You can change /etc/X11/Xwrapper.config file:
allowed_users=console

man Xwrapper.config for info it should fit your needs

You can start X with:
startx
or you custom script
or ax at https://notabug.org/viverna/ax
or xinit with custom command line, for example:
xinit /home/user/.xinitrc -- /etc/X11/xinit/xserverrc :0 vt2 -keeptty

without use any graphical login manager for X11.

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( // /)   |  ; -.|_ _\.-~   /   /
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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[Ian Zimmerman]

On 2020-09-22 11:10, Steve Litt wrote:

> Second, a more security-respecting solution is there might be a group,
>  which your users can belong, that allows them to run X. Perhaps
> group video ??? I just looked at /usr/bin/Xorg on my Void box and it's
> not suid anything. I performed some ls commands that show no suid
> owner, group or everyone that pertain to X:

Unfortunately, I don't think this will help.

The problem is not just file system accesses, but specialized ioctl
system calls, which are reserved for root. They were supposed to be
cleaned up with the switch to kernel side modesetting (KMS), but some
remain. And to make this even more opaque and frustrating, this depends
on the driver used, hence on the hardware.

This is the only reason why I use xdm. I feel that between xdm and a
setuid Xorg, the former is the lesser evil when configured right,
ie. listening only on a unix socket.

This (longish) sub-thread from my gentoo days may be relevant:

https://archives.gentoo.org/gentoo-user/message/15777398d780425417e5f5414dc903c1

-- 
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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[fraser kendall]

On Tue, 22 Sep 2020 07:43:42 -0700
Marc Shapiro via Dng  wrote:

> I do use startx from a terminal login

Me too, and usually without problems.  However, I have always had to
add 

needs_root_rights=yes

to /etc/X11/Xwrapper.config

And lately I cannot startx on three beowulf/xfce4 desktops, I have to
startxfce4 (and the panel's not that stable either).

Best wishes

fraser

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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[Steve Litt]

On Mon, 21 Sep 2020 19:36:33 -0700
Marc Shapiro via Dng  wrote:


> Boot and login went fine.  Starting Xorg, not so well.  Tried all
> three users with no luck.  This worked before the upgrade.  Tried as
> root. Success!  So root can start Xorg, but not an ordinary user.
> Any ideas what might be wrong.

Hi Marc,

I don't use Devuan much, and haven't used Debian since March 2015, but
I have some ideas from my general wanderings through Linux.

First of all, there's an ancient fix, passed from father to son
throughout the ages, of making X or Xorg or one of the shellscripts
that calls it suid root.

Second, a more security-respecting solution is there might be a group,
to which your users can belong, that allows them to run X. Perhaps
group video ??? I just looked at /usr/bin/Xorg on my Void box and it's
not suid anything. I performed some ls commands that show no suid
owner, group or everyone that pertain to X:


[slitt@mydesk trumptoll]$ ls -l /usr/bin | grep -v ^[-ld]
total 3005208
[slitt@mydesk trumptoll]$ ls -l /usr/bin | grep -v ^...[-x]
total 3005208
-rwsr-xr-x 1 root root 71960 Feb 14  2020 chage
-rwsr-xr-x 1 root root 39056 Jul 29 10:50 chfn
-rwsr-xr-x 1 root root 30864 Jul 29 10:50 chsh
-rwsr-xr-x 1 root root 30768 Jan 20  2019 contain
-rwsr-xr-x 1 root root 22592 Jan  1  2019 dcrontab
---s--x--x 1 root root 43176 Feb  3  2020 doas
-rwsr-xr-x 1 root root 26984 Feb 14  2020 expiry
-rwsr-xr-x 1 root root 34952 Jan  5  2019 fusermount
-rwsr-xr-x 1 root root 34968 Jun 17 16:15 fusermount3
-rwsr-xr-x 1 root root 67704 Feb 14  2020 gpasswd
-rwsr-xr-x 1 root root 55360 Jul  4 19:09 ksu
-rwsr-xr-x 1 root root 59536 Jul 29 10:50 mount
-rwsr-sr-x 1 root root 43864 Dec 25  2019 mount.cifs
-rws--x--x 1 root root129824 Jul 20 14:05 mount.nfs
-rwsr-xr-x 1 root root 37208 Feb 14  2020 newgidmap
-rwsr-xr-x 1 root root 14480 Jul 29 10:50 newgrp
-rwsr-xr-x 1 root root 37208 Feb 14  2020 newuidmap
-rwsr-xr-x 1 root root 59760 Feb 14  2020 passwd
-rwsr-xr-x 1 root root 30784 Aug  8  2019 pkexec
-rwsr-xr-x 1 root root 48832 Jun 27  2017 pmount
-rwsr-xr-x 1 root root 22576 Jan 20  2019 pseudo
-rwsr-xr-x 1 root root 35200 Jun 27  2017 pumount
-rwsr-xr-x 1 root root470104 Feb  7  2020 screen-4.8.0
-rwsr-xr-x 1 root root 40488 Feb 14  2020 sg
-rwsr-xr-x 1 root root 14456 Nov 21  2016 slock
-rwsr-xr-x 1 root root 18528 Jul  4 07:25
spice-client-glib-usb-acl-helper -rwsr-xr-x 1 root root 71824
Jul 29 10:50 su ---s--x--x 1 root root161904 Jul 23 17:13 sudo
-rwsr-xr-x 1 root root116888 Nov 29  2018 udevil
-rwsr-xr-x 1 root root 34960 Jul 29 10:50 umount
-rwsr-xr-x 1 root root 38984 Mar 20  2019 unix_chkpwd
-rwsr-x--- 1 root xbuilder 22616 Jul  2 10:57 xbps-uchroot
[slitt@mydesk trumptoll]$ ls -l /usr/bin | grep -v ^..[-x]
total 3005208
-rwxr-sr-x 1 root cgred14496 Oct 16  2018 cgexec
-rwxr-sr-x 1 root _mlocate 39064 Sep  7  2018 mlocate
-rwxr-sr-x 1 root root497616 Apr 27 05:38 mlterm
-rwsr-sr-x 1 root root 43864 Dec 25  2019 mount.cifs
-r-xr-sr-x 1 root _smtpq  228176 Jul  4 19:09 smtpctl
-rwxr-sr-x 1 root tty  34960 Jul 29 10:50 wall
-rwxr-sr-x 1 root tty  22672 Jul 29 10:50 write
[slitt@mydesk trumptoll]$ 


I don't have time right now to remove myself from group video, kill X,
re-login, run X, and see if I can't run X, but I think group video is
something to check.

SteveT

Steve Litt 
Autumn 2020 featured book: Thriving in Tough Times
http://www.troubleshooters.com/thrive
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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[Marc Shapiro via Dng]

I do use startx from a terminal login, so this sounds like it could be 
the problem.  I'll check it out when I get home, tonight and pass the 
results to the list.


Thanks.

Marc



On 9/21/20 11:16 PM, wirelessduck--- via Dng wrote:



On 22 Sep 2020, at 12:36, Marc Shapiro via Dng  
wrote:


I have pretty much decided that there is no way to upgrade my Debian 
system to Buster and keep it usable without systemd.  Since I am set 
up for multiboot, including Devuan Ascii, I decided to upgrade that 
to Beowulf and see if that will work for me and the others using this 
box.


After upgrading (following the instructions for upgrading an existing 
Devuan system), I rebooted the computer.


First, I booted into my Debian Stretch partition to make sure that 
everything was still good, there.  Boot, login, start Xorg. All looks 
good.


Logout and reboot into Beowulf.

Boot and login went fine.  Starting Xorg, not so well. Tried all 
three users with no luck.  This worked before the upgrade.  Tried as 
root.  Success!  So root can start Xorg, but not an ordinary user.  
Any ideas what might be wrong. It looks like a permissions issue, but 
I don't know enough about how X actually starts up to know where to 
look. Anything that you want me to post to help debug this?


Any help appreciated.


Marc


If you are starting X from a terminal/tty, the Beowulf release notes 
mention the required configuration to start X as non-root.


https://files.devuan.org/devuan_beowulf/Release_notes.txt 



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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[wirelessduck--- via Dng]

> On 22 Sep 2020, at 12:36, Marc Shapiro via Dng  wrote:
> 
> I have pretty much decided that there is no way to upgrade my Debian system 
> to Buster and keep it usable without systemd.  Since I am set up for 
> multiboot, including Devuan Ascii, I decided to upgrade that to Beowulf and 
> see if that will work for me and the others using this box.
> 
> After upgrading (following the instructions for upgrading an existing Devuan 
> system), I rebooted the computer.
> 
> First, I booted into my Debian Stretch partition to make sure that everything 
> was still good, there.  Boot, login, start Xorg. All looks good.
> 
> Logout and reboot into Beowulf.
> 
> Boot and login went fine.  Starting Xorg, not so well.  Tried all three users 
> with no luck.  This worked before the upgrade.  Tried as root.  Success!  So 
> root can start Xorg, but not an ordinary user.  Any ideas what might be 
> wrong.  It looks like a permissions issue, but I don't know enough about how 
> X actually starts up to know where to look.  Anything that you want me to 
> post to help debug this?
> 
> Any help appreciated.
> 
> 
> Marc

If you are starting X from a terminal/tty, the Beowulf release notes mention 
the required configuration to start X as non-root.

https://files.devuan.org/devuan_beowulf/Release_notes.txt

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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[Ludovic Bellière]

Hello Marc,

You may have an old funky config left over from ASCII/stretch. I'd
invite you to consult the logs (/var/log) to see how Xorg is failing,
and at the same time checkout /etc/X11 to make sure everything is
"standard". Xorg is supposed to be started by your login manager (slim,
gdm, ...), which will as root. What you may have encountered is that
Xorg, as a user process, do not have the proper rights to use specific
paths and then fails.

As it is we know as much as you tell us: Xorg fails to start after
upgrade to Beowulf. Without more information, we'll be unable to help
further.

You could chose to go for the nuclear option: remove anything Xorg
related and then manually remove all left over files in the relevant
directories.

Ludovic

On 22/09/20 04:36, Marc Shapiro via Dng wrote:
> I have pretty much decided that there is no way to upgrade my Debian
> system to Buster and keep it usable without systemd.  Since I am set up
> for multiboot, including Devuan Ascii, I decided to upgrade that to
> Beowulf and see if that will work for me and the others using this box.
> 
> After upgrading (following the instructions for upgrading an existing
> Devuan system), I rebooted the computer.
> 
> First, I booted into my Debian Stretch partition to make sure that
> everything was still good, there.  Boot, login, start Xorg. All looks good.
> 
> Logout and reboot into Beowulf.
> 
> Boot and login went fine.  Starting Xorg, not so well.  Tried all three
> users with no luck.  This worked before the upgrade.  Tried as root. 
> Success!  So root can start Xorg, but not an ordinary user.  Any ideas
> what might be wrong.  It looks like a permissions issue, but I don't
> know enough about how X actually starts up to know where to look. 
> Anything that you want me to post to help debug this?
> 
> Any help appreciated.
> 
> 
> Marc
> 
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Re: [DNG] Xorg stopped working after upgrade to Beowulf

[terryc]

On Mon, 21 Sep 2020 19:36:33 -0700
Marc Shapiro via Dng  wrote:

> I have pretty much decided that there is no way to upgrade my Debian 
> system to Buster and keep it usable without systemd.  Since I am set
> up for multiboot, including Devuan Ascii, I decided to upgrade that
> to Beowulf and see if that will work for me and the others using this
> box.
> 
> After upgrading (following the instructions for upgrading an existing 
> Devuan system), I rebooted the computer.
> 
> First, I booted into my Debian Stretch partition to make sure that 
> everything was still good, there.  Boot, login, start Xorg. All looks
> good.
> 
> Logout and reboot into Beowulf.
> 
> Boot and login went fine.  Starting Xorg, not so well.  Tried all
> three users with no luck.  

Further information please.
Exaxcly how are you tryig to start X?
Any error messages.
Which DM dispay manager; xdam, gdm, kdm or ?) are you using and which
desktop?

FYI I've run xdm for ages, well since debian-spud and the whole gdm/kdm
debacles and over that time I've run tvm, light, ice and now xfce4 for
jessie-ascii & beowuff and it just worked on all the systems with heads.

So, we'll need a bit more information pls.

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[DNG] Xorg stopped working after upgrade to Beowulf

[Marc Shapiro via Dng]

I have pretty much decided that there is no way to upgrade my Debian 
system to Buster and keep it usable without systemd.  Since I am set up 
for multiboot, including Devuan Ascii, I decided to upgrade that to 
Beowulf and see if that will work for me and the others using this box.


After upgrading (following the instructions for upgrading an existing 
Devuan system), I rebooted the computer.


First, I booted into my Debian Stretch partition to make sure that 
everything was still good, there.  Boot, login, start Xorg. All looks good.


Logout and reboot into Beowulf.

Boot and login went fine.  Starting Xorg, not so well.  Tried all three 
users with no luck.  This worked before the upgrade.  Tried as root.  
Success!  So root can start Xorg, but not an ordinary user.  Any ideas 
what might be wrong.  It looks like a permissions issue, but I don't 
know enough about how X actually starts up to know where to look.  
Anything that you want me to post to help debug this?


Any help appreciated.


Marc

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