Tiny Core Linux

dCore Import Debian Packages to Mountable SCE extensions => dCore x86_64 => dCore x86_64 Imported Extensions => Topic started by: volkerp on November 05, 2020, 04:23:25 AM

Title: [Solved] dCore-buster64rc and man-db
Post by: volkerp on November 05, 2020, 04:23:25 AM

I didn't have problems viewing manual pages in  dCore-stretch. In dCore-buster64 I ran into a problem I'm unable to solve:

Code: [Select]

tc@box:~$ man man
man: nroff: Bad system call
man: command exited with status 159: (cd /usr/share/man && /usr/lib/man-db/zsoelim) | (cd /usr/share/man && /usr/lib/man-db/manconv -f UTF-8:ISO-8859-1 -t UTF-8//IGNORE) | (cd /usr/share/man && preconv -e UTF-8) | (cd /usr/share/man && tbl) | (cd /usr/share/man && nroff -mandoc -Tutf8)
tc@box:~$

Any advice appreciated. Thanks in advance!

Volker

Title: Re: dCore-buster64rc and man-db
Post by: Rich on November 05, 2020, 09:49:27 AM

Hi volkerp
A couple of ideas. Does it still crash if you start it like this:

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MAN_DISABLE_SECCOMP=1 man man
Try downgrading  man-db  back to the one supplied by  dCore-stretch.

Title: Re: dCore-buster64rc and man-db
Post by: volkerp on November 05, 2020, 05:35:39 PM

Hi Rich,

Quote

Does it still crash if you start it like this:
 

Code: [Select]

MAN_DISABLE_SECCOMP=1 man man

No, it doesn't. You hit the bullseye! Thanks a lot, Rich!
You can the thread mark solved.

Title: Re: [Solved] dCore-buster64rc and man-db
Post by: Rich on November 05, 2020, 08:27:12 PM

Hi volkerp

Quote from: volkerp on November 05, 2020, 05:35:39 PM

... Thanks a lot, Rich! ...

You're very welcome.

Just to add some context to that solution, a  sandboxing  issue was mentioned as the cause of the problem and this
creates a security exception for the man program.

You can probably get this to work automatically by adding this to the  export  section of your  .profile  file:

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export MAN_DISABLE_SECCOMP=1Then logout and login.

Title: Re: [Solved] dCore-buster64rc and man-db
Post by: volkerp on November 06, 2020, 12:36:19 PM

Hi Rich,
you are really very kind and helpful. Thank you very much for your additional elucidations!