Document how to resize partition

[vmayoral]

Signed-off-by: Víctor Mayoral Vilches [email protected]

[jasvinderkhurana]

@vmayoral , I have a script which I use to increase the partition size, and it does not require any booting or manual inputs, can you pleas evaluate below script as well and let me know your opinion which one is more suitable

#!/usr/bin/env bash
# Short-Description: Resize the root filesystem to fill partition

ROOT_PART=$(mount | sed -n 's|^\(.*\) on / .*|\1|p')
ROOT_DEV=$(echo $ROOT_PART | cut -c 1-12)
PART_NUM=$(echo -n $ROOT_PART | tail -c 1)
MOUNTED=$(mount | sed -n '/^\(.*\)'$PART_NUM' on \/[a-zA-Z0-9].*ext/p')

do_expand_rootfs() 
{
	local target=$1
	local part_num=$2

	if [ -n "${MOUNTED}" ]; then
		echo -e "yes\n100%" | parted ${target} ---pretend-input-tty  resizepart ${part_num} > /dev/null 2>&1
	else
		parted ${target} resizepart ${part_num} 100% > /dev/null 2>&1
	fi
}

ext4_resize() 
{
	if [ "$ROOT_DEV" != "/dev/mmcblk1" -a "$ROOT_DEV" != "/dev/mmcblk0" ]; then
		echo "$ROOT_DEV is not an emmc or sd card. Don't know how to expand"
		exit
	fi

	do_expand_rootfs $ROOT_DEV $PART_NUM && resize2fs $ROOT_PART > /dev/null 2>&1
}

ext4_resize

[jasvinderkhurana]

@vmayoral ,

I got another simple way to resize the partition, please check if that is more useful and we can publish that in "How-to" section:

$ sudo parted /dev/mmcblk1 resizepart 2

Warning: Partition /dev/mmcblk1p2 is being used. Are you sure you want to continue? Yes/No? yes
End? [6442MB]? 100%
Information: You may need to update /etc/fstab.

$ sudo resize2fs /dev/mmcblk1p2

resize2fs 1.45.6 (20-Mar-2020)
Filesystem at /dev/mmcblk1p2 is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 4
The filesystem on /dev/mmcblk1p2 is now 7267455 (4k) blocks long.

[vmayoral]

Looks good to me 👍! Feel free to add it. El El sáb, 22 ene 2022 a las 20:37, jasvinderkhurana < ***@***.***> escribió:

…

@vmayoral <https://github.com/vmayoral> , I got another simple way to resize the partition, please check if that is more useful and we can publish that in "How-to" section: $ *sudo parted /dev/mmcblk1 resizepart 2* Warning: Partition /dev/mmcblk1p2 is being used. Are you sure you want to continue? Yes/No? yes End? [6442MB]? 100% Information: You may need to update /etc/fstab. $ *sudo resize2fs /dev/mmcblk1p2* resize2fs 1.45.6 (20-Mar-2020) Filesystem at /dev/mmcblk1p2 is mounted on /; on-line resizing required old_desc_blocks = 1, new_desc_blocks = 4 The filesystem on /dev/mmcblk1p2 is now 7267455 (4k) blocks long. — Reply to this email directly, view it on GitHub <#32 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAKPYDSBUYWPTTQZGMQEU5DUXMBP3ANCNFSM5JQSKMGQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you were mentioned.Message ID: ***@***.***>