[GH-ISSUE #2866] new version of Slack Desktop (4.0) not working #1791

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opened 2026-05-05 08:27:42 -06:00 by gitea-mirror · 25 comments
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Originally created by @daks on GitHub (Jul 22, 2019).
Original GitHub issue: https://github.com/netblue30/firejail/issues/2866

Hello,

this morning, slack application can't run on firejail, while it was working two days ago. It could be because I upgraded some packages on my Debian Stretch. Slack is version 4.0.0 coming from their repository.
Firejail and firejail-profiles are version 0.9.58.2-2.

When running slack in firejail this is the output

 Reading profile /etc/firejail/slack.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-devel.inc
Reading profile /etc/firejail/disable-interpreters.inc
Reading profile /etc/firejail/disable-passwdmgr.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/whitelist-common.inc
Reading profile /etc/firejail/whitelist-var-common.inc
Warning: networking feature is disabled in Firejail configuration file
Parent pid 18487, child pid 18488
Warning: skipping crypto-policies for private /etc
Private /etc installed in 22.93 ms
2 programs installed in 1.57 ms
Child process initialized in 95.05 ms

Initializing local storage instance at path: /home/eric/.config/Slack/local-settings.json
Creating Slack Application

and it gets stuck there.
It runs well without firejail.
I copied the profile from github but no change.

Thanks for this nice tool, and for any help in solving this problem.

Originally created by @daks on GitHub (Jul 22, 2019). Original GitHub issue: https://github.com/netblue30/firejail/issues/2866 Hello, this morning, slack application can't run on firejail, while it was working two days ago. It could be because I upgraded some packages on my Debian Stretch. Slack is version 4.0.0 coming from their repository. Firejail and firejail-profiles are version 0.9.58.2-2. When running slack in firejail this is the output ``` Reading profile /etc/firejail/slack.profile Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-devel.inc Reading profile /etc/firejail/disable-interpreters.inc Reading profile /etc/firejail/disable-passwdmgr.inc Reading profile /etc/firejail/disable-programs.inc Reading profile /etc/firejail/whitelist-common.inc Reading profile /etc/firejail/whitelist-var-common.inc Warning: networking feature is disabled in Firejail configuration file Parent pid 18487, child pid 18488 Warning: skipping crypto-policies for private /etc Private /etc installed in 22.93 ms 2 programs installed in 1.57 ms Child process initialized in 95.05 ms Initializing local storage instance at path: /home/eric/.config/Slack/local-settings.json Creating Slack Application ``` and it gets stuck there. It runs well without firejail. I copied the profile from github but no change. Thanks for this nice tool, and for any help in solving this problem.
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@rusty-snake commented on GitHub (Jul 22, 2019):

@daks slack use electron, right? Related to #2854 and #2821 try adding the following to slack.local.

ignore seccomp
seccomp.drop @clock,@cpu-emulation,@debug,@module,@obsolete,@raw-io,@reboot,@resources,@swap,acct,add_key,bpf,fanotify_init,io_cancel,io_destroy,io_getevents,ioprio_set,io_setup,io_submit,kcmp,keyctl,mincore,mount,name_to_handle_at,nfsservctl,ni_syscall,open_by_handle_at,pivot_root,remap_file_pages,request_key,setdomainname,sethostname,syslog,umount,umount2,userfaultfd,vhangup,vmsplice
<!-- gh-comment-id:513720691 --> @rusty-snake commented on GitHub (Jul 22, 2019): @daks slack use electron, right? Related to #2854 and #2821 try adding the following to `slack.local`. ``` ignore seccomp seccomp.drop @clock,@cpu-emulation,@debug,@module,@obsolete,@raw-io,@reboot,@resources,@swap,acct,add_key,bpf,fanotify_init,io_cancel,io_destroy,io_getevents,ioprio_set,io_setup,io_submit,kcmp,keyctl,mincore,mount,name_to_handle_at,nfsservctl,ni_syscall,open_by_handle_at,pivot_root,remap_file_pages,request_key,setdomainname,sethostname,syslog,umount,umount2,userfaultfd,vhangup,vmsplice ```
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@daks commented on GitHub (Jul 22, 2019):

Thanks for this quick answer but the problem is still present with this fix

Reading profile /etc/firejail/slack.profile
Reading profile /etc/firejail/slack.local
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-devel.inc
Reading profile /etc/firejail/disable-interpreters.inc
Reading profile /etc/firejail/disable-passwdmgr.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/whitelist-common.inc
Reading profile /etc/firejail/whitelist-var-common.inc
Warning: networking feature is disabled in Firejail configuration file
Parent pid 27167, child pid 27168
Warning: skipping crypto-policies for private /etc
Private /etc installed in 23.57 ms
2 programs installed in 2.01 ms
Post-exec seccomp protector enabled
Seccomp list in: @clock,@cpu-emulation,@debug,@module,@obsolete,@raw-io,@reboot,@resources,@swap,acct,add_key,bpf,fanotify_init,io_cancel,io_destroy,io_getevents,ioprio_set,io_setup,io_submit,kcmp,keyctl,mincore,mount,name_to_handle_at,nfsservctl,ni_syscall,open_by_handle_at,pivot_root,remap_file_pages,request_key,setdomainname,sethostname,syslog,umount,umount2,userfaultfd,vhangup,vmsplice, check list: @default-keep, prelist: adjtimex,clock_adjtime,clock_settime,settimeofday,modify_ldt,lookup_dcookie,perf_event_open,process_vm_writev,delete_module,finit_module,init_module,_sysctl,afs_syscall,create_module,get_kernel_syms,getpmsg,putpmsg,query_module,security,sysfs,tuxcall,uselib,ustat,vserver,ioperm,iopl,kexec_load,kexec_file_load,reboot,set_mempolicy,migrate_pages,move_pages,mbind,swapon,swapoff,acct,add_key,bpf,fanotify_init,io_cancel,io_destroy,io_getevents,ioprio_set,io_setup,io_submit,kcmp,keyctl,mincore,mount,name_to_handle_at,nfsservctl,open_by_handle_at,pivot_root,remap_file_pages,request_key,setdomainname,sethostname,syslog,umount2,userfaultfd,vhangup,vmsplice,
Child process initialized in 98.29 ms
Initializing local storage instance at path: /home/eric/.config/Slack/local-settings.json
Creating Slack Application

<!-- gh-comment-id:513754870 --> @daks commented on GitHub (Jul 22, 2019): Thanks for this quick answer but the problem is still present with this fix ``` Reading profile /etc/firejail/slack.profile Reading profile /etc/firejail/slack.local Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-devel.inc Reading profile /etc/firejail/disable-interpreters.inc Reading profile /etc/firejail/disable-passwdmgr.inc Reading profile /etc/firejail/disable-programs.inc Reading profile /etc/firejail/whitelist-common.inc Reading profile /etc/firejail/whitelist-var-common.inc Warning: networking feature is disabled in Firejail configuration file Parent pid 27167, child pid 27168 Warning: skipping crypto-policies for private /etc Private /etc installed in 23.57 ms 2 programs installed in 2.01 ms Post-exec seccomp protector enabled Seccomp list in: @clock,@cpu-emulation,@debug,@module,@obsolete,@raw-io,@reboot,@resources,@swap,acct,add_key,bpf,fanotify_init,io_cancel,io_destroy,io_getevents,ioprio_set,io_setup,io_submit,kcmp,keyctl,mincore,mount,name_to_handle_at,nfsservctl,ni_syscall,open_by_handle_at,pivot_root,remap_file_pages,request_key,setdomainname,sethostname,syslog,umount,umount2,userfaultfd,vhangup,vmsplice, check list: @default-keep, prelist: adjtimex,clock_adjtime,clock_settime,settimeofday,modify_ldt,lookup_dcookie,perf_event_open,process_vm_writev,delete_module,finit_module,init_module,_sysctl,afs_syscall,create_module,get_kernel_syms,getpmsg,putpmsg,query_module,security,sysfs,tuxcall,uselib,ustat,vserver,ioperm,iopl,kexec_load,kexec_file_load,reboot,set_mempolicy,migrate_pages,move_pages,mbind,swapon,swapoff,acct,add_key,bpf,fanotify_init,io_cancel,io_destroy,io_getevents,ioprio_set,io_setup,io_submit,kcmp,keyctl,mincore,mount,name_to_handle_at,nfsservctl,open_by_handle_at,pivot_root,remap_file_pages,request_key,setdomainname,sethostname,syslog,umount2,userfaultfd,vhangup,vmsplice, Child process initialized in 98.29 ms Initializing local storage instance at path: /home/eric/.config/Slack/local-settings.json Creating Slack Application ```
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@rusty-snake commented on GitHub (Jul 22, 2019):

I assume that firejail --noprofile slack works.
Then undo the changes in slack.local and try the following, if it works try to figure out what needs to be ignored.
firejail --ignore=private-bin --ignore=private-etc --ignore=private-tmp --ignore=seccomp --ignore=nogroups --ignore=nonewprivs --ignore=noroot slack

<!-- gh-comment-id:513762042 --> @rusty-snake commented on GitHub (Jul 22, 2019): I assume that `firejail --noprofile slack` works. Then undo the changes in slack.local and try the following, if it works try to figure out what needs to be ignored. `firejail --ignore=private-bin --ignore=private-etc --ignore=private-tmp --ignore=seccomp --ignore=nogroups --ignore=nonewprivs --ignore=noroot slack`
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@daks commented on GitHub (Jul 22, 2019):

 firejail --noprofile slack
Parent pid 2916, child pid 2917
Child process initialized in 39.16 ms
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features
Warning: an existing sandbox was detected. slack will run without any additional sandboxing features

not working...

<!-- gh-comment-id:513764761 --> @daks commented on GitHub (Jul 22, 2019): ``` firejail --noprofile slack Parent pid 2916, child pid 2917 Child process initialized in 39.16 ms Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features Warning: an existing sandbox was detected. slack will run without any additional sandboxing features ``` not working...
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@daks commented on GitHub (Jul 22, 2019):

I have no real hurry to make it run without firejail, I'm using the web UI in the meantime, I prefer to wait to have a working firejail profile to sandbox it :)

<!-- gh-comment-id:513764955 --> @daks commented on GitHub (Jul 22, 2019): I have no real hurry to make it run without firejail, I'm using the web UI in the meantime, I prefer to wait to have a working firejail profile to sandbox it :)
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@rusty-snake commented on GitHub (Jul 22, 2019):

Now its interesting, looks like a loop.
sudo rm /usr/local/bin/slack (if you have a firecfg/firejail symlink)
command -v slack
cat $(command -v slack) // if it is a shell script
EDIT:
Do you use firejail as shell? Or firejailing your terminal? (If unsure firejail echo 'Hello World' should show Reading profile /etc/firejail/default.profile)

<!-- gh-comment-id:513766932 --> @rusty-snake commented on GitHub (Jul 22, 2019): Now its interesting, looks like a loop. `sudo rm /usr/local/bin/slack` (if you have a firecfg/firejail symlink) `command -v slack` `cat $(command -v slack)` // if it is a shell script EDIT: Do you use firejail as shell? Or firejailing your terminal? (If unsure `firejail echo 'Hello World'` should show `Reading profile /etc/firejail/default.profile`)
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@daks commented on GitHub (Jul 22, 2019):

I don't think I firejail my shell (fish) or my terminal (urxtc) but

$ firejail echo 'Hello World'
Reading profile /etc/firejail/default.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-passwdmgr.inc
Reading profile /etc/firejail/disable-programs.inc
Warning: networking feature is disabled in Firejail configuration file

** Note: you can use --noprofile to disable default.profile **

Parent pid 13416, child pid 13417
Child process initialized in 132.44 ms
Hello World

Parent is shutting down, bye...

and /usr/bin/slack is not a text file.

<!-- gh-comment-id:513798201 --> @daks commented on GitHub (Jul 22, 2019): I don't think I firejail my shell (fish) or my terminal (urxtc) but ``` $ firejail echo 'Hello World' Reading profile /etc/firejail/default.profile Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-passwdmgr.inc Reading profile /etc/firejail/disable-programs.inc Warning: networking feature is disabled in Firejail configuration file ** Note: you can use --noprofile to disable default.profile ** Parent pid 13416, child pid 13417 Child process initialized in 132.44 ms Hello World Parent is shutting down, bye... ``` and `/usr/bin/slack` is not a text file.
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@daks commented on GitHub (Jul 22, 2019):

it seems that my firefox is firejailed and... ssh?

ps ax|grep firejail
 5711 pts/10   S+     0:00 /usr/bin/firejail /usr/bin/ssh srv1
 5712 pts/10   S+     0:00 /usr/bin/firejail /usr/bin/ssh srv1
 9719 ?        S      0:00 /usr/bin/firejail /usr/bin/firefox
 9720 ?        S      0:00 /usr/bin/firejail /usr/bin/firefox
15037 pts/11   S+     0:00 grep --color=auto firejail
15886 pts/5    S+     0:00 /usr/bin/firejail /usr/bin/ssh srv2
15887 pts/5    S+     0:00 /usr/bin/firejail /usr/bin/ssh srv2
<!-- gh-comment-id:513798857 --> @daks commented on GitHub (Jul 22, 2019): it seems that my firefox is firejailed and... ssh? ``` ps ax|grep firejail 5711 pts/10 S+ 0:00 /usr/bin/firejail /usr/bin/ssh srv1 5712 pts/10 S+ 0:00 /usr/bin/firejail /usr/bin/ssh srv1 9719 ? S 0:00 /usr/bin/firejail /usr/bin/firefox 9720 ? S 0:00 /usr/bin/firejail /usr/bin/firefox 15037 pts/11 S+ 0:00 grep --color=auto firejail 15886 pts/5 S+ 0:00 /usr/bin/firejail /usr/bin/ssh srv2 15887 pts/5 S+ 0:00 /usr/bin/firejail /usr/bin/ssh srv2 ```
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@rusty-snake commented on GitHub (Jul 22, 2019):

try removing name slack from slack.profile and add join-or-start slack

<!-- gh-comment-id:513800256 --> @rusty-snake commented on GitHub (Jul 22, 2019): try removing `name slack` from slack.profile and add `join-or-start slack`
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@daks commented on GitHub (Jul 22, 2019):

still the same

$ slack
Reading profile /etc/firejail/slack.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-devel.inc
Reading profile /etc/firejail/disable-interpreters.inc
Reading profile /etc/firejail/disable-passwdmgr.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/whitelist-common.inc
Reading profile /etc/firejail/whitelist-var-common.inc
Warning: networking feature is disabled in Firejail configuration file
Parent pid 18756, child pid 18757
Warning: skipping crypto-policies for private /etc
Private /etc installed in 53.10 ms
2 programs installed in 3.42 ms
Child process initialized in 142.00 ms
Initializing local storage instance at path: /home/eric/.config/Slack/local-settings.json
Creating Slack Application
<!-- gh-comment-id:513803867 --> @daks commented on GitHub (Jul 22, 2019): still the same ``` $ slack Reading profile /etc/firejail/slack.profile Reading profile /etc/firejail/disable-common.inc Reading profile /etc/firejail/disable-devel.inc Reading profile /etc/firejail/disable-interpreters.inc Reading profile /etc/firejail/disable-passwdmgr.inc Reading profile /etc/firejail/disable-programs.inc Reading profile /etc/firejail/whitelist-common.inc Reading profile /etc/firejail/whitelist-var-common.inc Warning: networking feature is disabled in Firejail configuration file Parent pid 18756, child pid 18757 Warning: skipping crypto-policies for private /etc Private /etc installed in 53.10 ms 2 programs installed in 3.42 ms Child process initialized in 142.00 ms Initializing local storage instance at path: /home/eric/.config/Slack/local-settings.json Creating Slack Application ```
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@rusty-snake commented on GitHub (Jul 22, 2019):

I don't have more ideas, lets wait if someone else have an idea.

<!-- gh-comment-id:513816188 --> @rusty-snake commented on GitHub (Jul 22, 2019): I don't have more ideas, lets wait if someone else have an idea.
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@FOSSONLY commented on GitHub (Jul 22, 2019):

I would suggest to replace fish with dash or bash, to solve that problem. The fish shell is experimental and non-standard (not posix compatible with some weird behavior), and there are other threads related to firejail, where could be solved by dropping fish.

<!-- gh-comment-id:513984232 --> @FOSSONLY commented on GitHub (Jul 22, 2019): I would suggest to replace fish with dash or bash, to solve that problem. The fish shell is experimental and non-standard (not posix compatible with some weird behavior), and there are other threads related to firejail, where could be solved by dropping fish.
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@daks commented on GitHub (Jul 23, 2019):

In fact I'm using fish.
I launched bash to execute slack in firejail and I have the same problem.
I'm not sure it has any influence.

<!-- gh-comment-id:514089130 --> @daks commented on GitHub (Jul 23, 2019): In fact I'm using fish. I launched bash to execute slack in firejail and I have the same problem. I'm not sure it has any influence.
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@FOSSONLY commented on GitHub (Jul 23, 2019):

Launched in which way? Would chsh be used to change the standard login shell? After that step you need to relogin/restart. This is important.

<!-- gh-comment-id:514181539 --> @FOSSONLY commented on GitHub (Jul 23, 2019): Launched in which way? Would chsh be used to change the standard login shell? After that step you need to relogin/restart. This is important.
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@daks commented on GitHub (Jul 24, 2019):

After chsh and restarting my X session, same problem.

<!-- gh-comment-id:514522628 --> @daks commented on GitHub (Jul 24, 2019): After chsh and restarting my X session, same problem.
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@rusty-snake commented on GitHub (Jul 24, 2019):

https://slack.engineering/rebuilding-slack-on-the-desktop-308d6fe94ae4

<!-- gh-comment-id:514529946 --> @rusty-snake commented on GitHub (Jul 24, 2019): https://slack.engineering/rebuilding-slack-on-the-desktop-308d6fe94ae4
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@j1r1k commented on GitHub (Jul 25, 2019):

Seems to be working after adding ignore private-etc to slack.local. So private-etc in slack.profile needs to be updated (but I don't have time to investigate more now).

<!-- gh-comment-id:514970468 --> @j1r1k commented on GitHub (Jul 25, 2019): Seems to be working after adding `ignore private-etc` to `slack.local`. So `private-etc` in `slack.profile` needs to be updated (but I don't have time to investigate more now).
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@Fred-Barclay commented on GitHub (Aug 5, 2019):

It should be fixed now --just add debian_version to the private-etc line.

Cheers!
Fred

<!-- gh-comment-id:518048406 --> @Fred-Barclay commented on GitHub (Aug 5, 2019): It should be fixed now --just add `debian_version` to the `private-etc` line. Cheers! Fred
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@reinerh commented on GitHub (Aug 5, 2019):

Wow, that's crazy. The program doesn't work if it can't determine the version of the distribution?

<!-- gh-comment-id:518209027 --> @reinerh commented on GitHub (Aug 5, 2019): Wow, that's crazy. The program doesn't work if it can't determine the version of the distribution?
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@j1r1k commented on GitHub (Aug 5, 2019):

Thanks for finding this, I submited PR fixing this in fedora as well.

<!-- gh-comment-id:518210584 --> @j1r1k commented on GitHub (Aug 5, 2019): Thanks for finding this, I submited PR fixing this in fedora as well.
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@j1r1k commented on GitHub (Aug 5, 2019):

Thanks for finding this, I submited PR fixing this in fedora as well.

My bad, it actually does not fix it in fedora, I forgot to get rid of the ignore private-etc override. I will look into it later.

<!-- gh-comment-id:518211278 --> @j1r1k commented on GitHub (Aug 5, 2019): > Thanks for finding this, I submited PR fixing this in fedora as well. My bad, it actually does not fix it in fedora, I forgot to get rid of the `ignore private-etc` override. I will look into it later.
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@rusty-snake commented on GitHub (Aug 5, 2019):

Fedora has also fedora-release, os-release, redhat-release, system-release
(ls -l /etc/*release).

<!-- gh-comment-id:518216017 --> @rusty-snake commented on GitHub (Aug 5, 2019): Fedora has also `fedora-release`, `os-release`, `redhat-release`, `system-release` (`ls -l /etc/*release`).
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@j1r1k commented on GitHub (Aug 5, 2019):

Fedora has also fedora-release, os-release, redhat-release, system-release
(ls -l /etc/*release).

Thanks for pointing out. It works on fedora with all release files listed.

<!-- gh-comment-id:518220802 --> @j1r1k commented on GitHub (Aug 5, 2019): > Fedora has also `fedora-release`, `os-release`, `redhat-release`, `system-release` > (`ls -l /etc/*release`). Thanks for pointing out. It works on fedora with all release files listed.
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@rusty-snake commented on GitHub (Aug 5, 2019):

No idea what they did that a program totally breaks without OS release infos?
maybe we need more on other distros.

<!-- gh-comment-id:518221677 --> @rusty-snake commented on GitHub (Aug 5, 2019): No idea what they did that a program totally breaks without OS release infos? maybe we need more on other distros.
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@daks commented on GitHub (Aug 7, 2019):

Thanks, I added a "slack.local" with the "private-etc" from the commit and it works :)

<!-- gh-comment-id:519135337 --> @daks commented on GitHub (Aug 7, 2019): Thanks, I added a "slack.local" with the "private-etc" from the commit and it works :)
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Reference: github-starred/firejail#1791
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