[yocto] [OE-core] Questions about udev rule and systemd-udev，relevant to mounting block device

[Hongzhi, Song]

Hi all,

Does anyone have suggestion for me?

Thanks.

Hongzhi.Song


On 2018年03月01日 18:35, Hongzhi, Song wrote:
>
> Defect:
>
>     The exiting method of automount of udev in /oe-core/meta/ /is using
>
> /automount.rules/ which call /mount.sh/ that using //bin/mount/ to 
> mount device.
>
> But systemd-udevd detaches /mount()/ operations done within the service
>
> from the rest of the system with MountFlag=slave， this means host can
>
> not access device. (e.g. Executing /mkfs.ext4 /dev/sda1// prompts
>
> //dev/sda1 is apparently in use by the system; will not make a 
> filesystem here!/)
>
>
> Solution:
>
>     Systemd upstream suggest that the best way is to use "systemd-mount"
>
> in udev rules, which will request the mount operation to be executed 
> by PID 1.
>
> And I have tested it was effective.
>
>
> Uncertain：
>
>     The exiting method is designed for /SysV-init /which is not 
> compatible to
>
> systemd-udev, at least that's what I think. So I think that we should 
> design
>
> a new rule or organizational structure to be suitable for systemd-udev 
> and
>
> to mount deferent device. Dose anyone help do this? Or I can make some
>
> improvements on the basis of the existing with "systemd-mount".
>
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20180302/8a88a483/attachment.html>