Re: [gentoo-user] Why isn't this SDcard mounting?

[Stroller]

> On 29 Aug 2017, at 16:35, Alan McKinnon <alan.mckinnon@×××××.com> 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.