Hello all,
On 2021-03-23 4:09 p.m., Paul H. Hargrove via cfarm-users wrote:
I can reproduce Pierre's issues with nohup and screen on the CFarm
machine, but not when ssh'ed into my own M1-based MacMini.
I know that doesn't help at all finding a solution, but it is hopefully
reassuring to know it *can* work.
While I don't know the reason for the failure,
I can suggest an alternative:
The homebrew versions ( /opt/homebrew/bin/screen ,
/opt/homebrew/bin/gnohup ) do work as expected.
I found two old posts mentioning similar issues,
so it's likely not specific to the M1 or the latest OS:
NoHup:
https://github.com/ChrisJohnsen/tmux-MacOSX-pasteboard/blob/master/Usage.md#beyond-pasteboard-access
GNU Screen:
https://superuser.com/questions/207654/gnu-screen-freezes-when-starting-session-over-ssh-works-locally-whats-wrong
and a relevant answer on same page, mentioning the call to
"vprocmgr_detach_from_console": https://superuser.com/a/208685
Indeed, the apple version call it (and the gnu/homebrew version does not):
===
% nm /usr/bin/nohup
/usr/bin/nohup (for architecture arm64e):
U ___error
U ___stderrp
0000000100000000 T __mh_execute_header
U __vprocmgr_detach_from_console
U _dup2
U _err
U _errx
U _execvp
U _exit
U _fprintf
U _fwrite
U _getenv
U _getopt
U _isatty
U _lseek
U _open
U _optind
U _signal
U _snprintf
===
It is a custom Apple addition:
https://opensource.apple.com/source/shell_cmds/shell_cmds-149/nohup/nohup.c.auto.html
Hope this helps.
- assaf gordon
P.S.
There's always "tmux" :)
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