[meta-xilinx] devtmpfs: error mounting -2

[Emily S]

Hi Mike -

Thanks for the response. When I removed the init-clock recipe from our
custom layer (
https://github.com/kratsg/meta-l1calo/blob/master/recipes-core/init/init-clock_1.0.0.bb)
the board boots fine now. Any thoughts on why this recipe causes problems?
It seemed to work fine a few months ago.

Best,
Emily

On Fri, Mar 15, 2019 at 6:14 AM Mike Looijmans <mike.looijmans at topic.nl>
wrote:

> since error "2" is this:
>
> #define ENOENT 2        /* No such file or directory */
>
> my guess would be that your rootfs does not actually contain a "/dev"
> directory for the filesystem to mount on.
>
>
> On 12-03-19 20:38, Emily S wrote:
> > Hi All -
> >
> > I'm using Yocto version rocko with a custom layer to run on the Zynq+
> SoC on a
> > custom board. When trying to boot I'm getting an error like:
> >
> > [    4.178864] devtmpfs: error mounting -2
> >
> > in the boot output. Even after rolling back to a previous working
> version I
> > still get this error in the boot output. After this error, the boot
> process
> > seems to stop, and I am directly given a terminal input, but no login,
> or
> > anything. The /dev and /proc folders seem to be missing as does
> specifically
> > /etc/network/ among others.
> >
> > I'm booting from an SD card and flashing it using a wic image made with
> the
> > "sdimage-bootpart.wks" from yocto. This method has worked fine before
> now.
> >
> > Are there obvious things I should check to make sure devtmpfs can be
> mounted
> > properly? I have not messed with bootargs or anything since the working
> > version of the OS, so I'm not sure why I am suddenly seeing this error.
> >
> > A comparison output from the working OS and the bad OS can be seen
> below. Any
> > ideas are greatly appreciated!
> >
> > Thanks,
> > Emily
> >
> > *Bad OS: *
> > [    4.125754] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to
> feature
> > incompatibilities
> > [    4.163579] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data
> mode.
> > Opts: (null)
> > [    4.171613] VFS: Mounted root (ext4 filesystem) on device 179:2.
> > [    4.178864] devtmpfs: error mounting -2
> > [    4.182766] Freeing unused kernel memory: 640K (ffffffc000d20000 -
> > ffffffc000dc0000)
> > /bin/sh: can't access tty; job control turned off
> > / #
> >
> > *Working OS: *
> > [    4.089697] EXT4-fs (mmcblk0p2): couldn't mount as ext3 due to
> feature
> > incompatibilities
> > [    5.324662] EXT4-fs (mmcblk0p2): recovery complete
> > [    5.404047] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data
> mode.
> > Opts: (null)
> > [    5.412083] VFS: Mounted root (ext4 filesystem) on device 179:2.
> > [    5.418084] devtmpfs: mounted
> > [    5.421106] Freeing unused kernel memory: 512K (ffffffc000c10000 -
> > ffffffc000c90000)
> >
> > ... (boot continues)
> >
>
>
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