On 2025-02-16 23:56:43 +0100, Chris Hofstaedtler wrote: > * Michael Stone <mst...@debian.org> [250216 22:45]: > > On Sun, Feb 16, 2025 at 07:05:13PM +0100, Vincent Lefevre wrote: > > > No, w(1) is broken (at least in sid). See the difference between > > > "who" and "w" with systemd 256.7-1, i.e. before the upgrade of > > > systemd that removed utmp support: > > > > That's because someone decided to suddenly remove an interface which has > > been used for decades without any kind of transition plan or replacement. > > Clearly there is a replacement, because the data is there: > > % w > 23:53:23 up 1 min, 2 users, load average: 0.06, 0.03, 0.00 > USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT > ch 192.168.64.1 23:53 1:24 0.00s 0.02s sshd-session: > ch [priv] > ch - 23:53 1:24 0.00s 0.04s > /usr/lib/systemd/systemd --user
No data for xterm. Other terminals are affected too, such as GNOME Terminal. > % loginctl > SESSION UID USER SEAT LEADER CLASS TTY IDLE SINCE > 1 1000 ch - 601 user - no - > 2 1000 ch - 606 manager - no - > > 2 sessions listed. On my Debian/unstable machine, I do not even get the same number of lines as with "w" when mosh is used. No such issue with "who" and old systemd with utmp enabled. > But who: > > % who > % > > Chris > > PS: Lack of tty in the list is IIRC some problem with openssh not > passing the TTY to PAM, but this is a separate thing. But with old system versions (and/or old "w" versions), such as in Debian/stable (bookworm), the tty is shown by "w": joooj:~> w 00:17:55 up 8 days, 1:40, 4 users, load average: 0.02, 0.07, 0.04 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT vinc17 pts/0 2a02:8428:1b1d:4 Wed20 1.00s 4.22s 0.03s w vinc17 pts/4 mosh- 17:29 6:48m 0.97s 0.97s -zsh vinc17 pts/5 mosh- Tue19 5days 0.33s 0.33s -zsh vinc17 pts/6 mosh- Fri23 2days 0.37s 16.97s mosh-server new -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
