From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?ISO-8859-1?Q?J=E9r=F4me?= Pouiller <jezz@sysmic.org>
Date: Tue, 03 Jan 2017 12:39:06 +0100
Subject: [Buildroot] [1/2] first_boot_rootfs_resizer: New Package.
In-Reply-To: <20161202101028.26736-1-daggs@gmx.com>
References: <20161202101028.26736-1-daggs@gmx.com>
Message-ID: <3158593.OjcTtQLqz9@sagittea>
List-Id: <buildroot.busybox.net>
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To: buildroot@busybox.net

Hello,

On Friday 02 December 2016 12:10:27 daggs wrote:
[...]
> +	p2_start=`fdisk -l ${DEV} | grep ${PART} | awk '{print $2}'`
> +	p2_finish=`fdisk -l ${DEV} | grep sectors | awk '{printf $5}'`
> +
> +	fdisk ${DEV} <<EOF
> +p
> +d
> +2
> +n
> +p
> +2
> +$p2_start
> +$p2_finish
> +p
> +w
> +EOF

This script always resize 2nd partition, isn't? Is it the expected 
behavior? I think it should resize last partition.

For information, I wrote a similar script for a customer some time ago: 

for part in 4 3 2 1; do
    for file in ${device}${part} ${device}p${part}; do
        if [ -e $file ]; then
            echo ',+,' | sfdisk -q -L -D -uM -N $part $device
            [ $? -eq 0 ] || exit 1
            resize2fs -p $file
            [ $? -eq 0 ] || exit 1
            e2fsck -f $file
            [ $? -le 1 ] || exit 1
            exit 0
        fi
    done
done

Also note, we did use this script during flash procedure, not during 
first boot. Therefore, we do not need to detect first boot (and I think 
it is safer).

BR,

-- 
J?r?me Pouiller, Sysmic
Embedded Linux specialist
http://www.sysmic.fr