[OE-core] [PATCH] base-files: remove symbolic link from /etc/mtab to /proc/mounts

[Guo Chunrong-B40290]

Hello,

I add libhugetlbfs package into my rootfs and run the below command in my board .
root at p1021rdb:~# hugeadm --create-mounts
    hugeadm:WARNING: Unable to add entry /var/lib/hugetlbfs/pagesize-4MB to /etc/mtab, error: Invalid argument
    hugeadm:WARNING: Unable to add entry /var/lib/hugetlbfs/pagesize-16MB to /etc/mtab, error: Invalid argument
root at p1022ds:~# ls /etc/mtab -l
lrwxrwxrwx 1 root root 12 Jul 31 07:28 /etc/mtab -> /proc/mounts
root at p1022ds:~# ls /proc/mounts 
/proc/mounts
root at p1022ds:~# ls /proc/mounts -l
lrwxrwxrwx 1 root root 11 Jul 31 07:58 /proc/mounts -> self/mounts



thanks,
chunrong



-----Original Message-----
From: openembedded-core-bounces at lists.openembedded.org [mailto:openembedded-core-bounces at lists.openembedded.org] On Behalf Of ChenQi
Sent: Wednesday, July 31, 2013 4:47 PM
To: openembedded-core at lists.openembedded.org
Subject: Re: [OE-core] [PATCH] base-files: remove symbolic link from /etc/mtab to /proc/mounts

On 07/31/2013 04:19 PM, Chunrong Guo wrote:
>      *If /etc/mtab is a symlink to /proc/self/mounts,
>       mounting fails because addmntent returns an error.
>       As a consequence, the Private directory is unusable
>       because /proc/self/mounts is read-only feature.

Could you please detail your environment a little bit?
Where does this error come from?

Besides, if you're going to make this change, please take a read-only rootfs into consideration. There should be more to fix.

Best Regards,
Chen Qi

> Signed-off-by: Chunrong Guo <B40290 at freescale.com>
> ---
>   meta/recipes-core/base-files/base-files_3.0.14.bb |    1 -
>   1 files changed, 0 insertions(+), 1 deletions(-)
>
> diff --git a/meta/recipes-core/base-files/base-files_3.0.14.bb 
> b/meta/recipes-core/base-files/base-files_3.0.14.bb
> index 054fefa..1843bdd 100644
> --- a/meta/recipes-core/base-files/base-files_3.0.14.bb
> +++ b/meta/recipes-core/base-files/base-files_3.0.14.bb
> @@ -100,7 +100,6 @@ do_install () {
>   	install -m 0644 ${WORKDIR}/host.conf ${D}${sysconfdir}/host.conf
>   	install -m 0644 ${WORKDIR}/motd ${D}${sysconfdir}/motd
>   
> -	ln -sf /proc/mounts ${D}${sysconfdir}/mtab
>   }
>   
>   do_install_basefilesissue () {

_______________________________________________
Openembedded-core mailing list
Openembedded-core at lists.openembedded.org
http://lists.openembedded.org/mailman/listinfo/openembedded-core