Re: [PATCH] mkefidisk: change filesystem to be writeable on grub

[randy.e.witt@linux.intel.com]

>
> On Qui, 2015-02-26 at 13:44 -0800, Randy Witt wrote:
>> On 02/26/2015 11:29 AM, Bruno Bottazzini wrote:
>> > This patch changes grub configuration so the filesystem will be
>> writeable
>> > instead, just read only when running the script.
>> > ---
>> >   scripts/contrib/mkefidisk.sh | 2 +-
>> >   1 file changed, 1 insertion(+), 1 deletion(-)
>> >
>> > diff --git a/scripts/contrib/mkefidisk.sh
>> b/scripts/contrib/mkefidisk.sh
>> > index b96b7d4..9b84831 100755
>> > --- a/scripts/contrib/mkefidisk.sh
>> > +++ b/scripts/contrib/mkefidisk.sh
>> > @@ -342,7 +342,7 @@ if [ -e "$GRUB_CFG" ]; then
>> >   	sed -i "s/ LABEL=[^ ]*/ /" $GRUB_CFG
>> >
>> >   	sed -i "s@ root=[^ ]*@ @" $GRUB_CFG
>> > -	sed -i "s@vmlinuz @vmlinuz root=$TARGET_ROOTFS ro rootwait quiet @"
>> $GRUB_CFG
>> > +	sed -i "s@vmlinuz @vmlinuz root=$TARGET_ROOTFS rw rootwait quiet @"
>> $GRUB_CFG
>> >   fi
>> >
>> >   # Look for a gummiboot installation
>> >
>>
>> This change basically reverts
>> http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=24cd3ddeb70a3d3f2985ec71c87ae0108f3d2777
>> by Darren. It also doesn't change the ro option when using gummiboot
>> instead.
>>
>> What is this change trying to fix?
>
> Hello Randy,
>
> I got the following message:
>  "file system is read-only"
>
> if I try to touch a file that is not on /tmp, or when I start a systemd
> service that tries to write on the file system.
>
> After some research, I go it fixed by changing to read/write on the
> script that was with read only.
>
> I thought this would be useful for someone else.

Thank you for taking the time to do this. If things still don't work after
checking /etc/fstab, let us know.

> Reading the patch you sent me, Darren says that a proper fstab will ensure
> the rootfs is rw.
> Maybe I'm missing this. I will look for this to make sure that my fstab
> OK.
>
> Thanks
>
>
>
>
>