> On 29 Aug 2017, at 16:35, Alan McKinnon <[email protected]> wrote: >> >> Is it udev that's responsible for populating the dev nodes? >> (is that the right terminology?) >> >> How do I force it to reconstruct the partition table? Surely one should >> expect to be able to format or partition a removable drive and have the dev >> nodes created without the necessity of rebooting? > > run partprobe and see if that makes a difference. It forces the kernel > to re-organize it's idea of what partitions are available. > > I would have thought SD Cards were treated like regular hotpluggable > devices like USB storage, but maybe not. I'd be interested to see the > results of running partprobe.
$ sudo partprobe -s /dev/sda: gpt partitions 1 2 3 4 5 /dev/sdb: msdos partitions 1 $ The following is also dumped to /var/log/messages: Aug 29 17:31:13 alrai sudo[20565]: stroller : TTY=pts/1 ; PWD=/home/stroller ; USER=root ; COMMAND=/bin/bash -c partprobe Aug 29 17:31:13 alrai sudo[20565]: pam_unix(sudo:session): session opened for user root by (uid=0) Aug 29 17:31:13 alrai kernel: sdb: sdb1 Aug 29 17:31:13 alrai kernel: sdb: sdb1 Aug 29 17:31:13 alrai sudo[20565]: pam_unix(sudo:session): session closed for user root However no new device nodes are added in /dev. This is a headless system, mostly used as a file server. It doesn't run a desktop (although I've run X11 apps using xpra a few times in the past). I've never done anything to set up hotplugging. Stroller.
