OpenWrt Forum Archive

Topic: tune2fs -O option. Resizing the rootfs partition.

The content of this topic has been archived on 2 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Post #1
dukenukke
12 Sep 2017, 09:41

Hardware: OlinuxinoMaxi (iMX233)
Software: custom build with BusyBox v1.24.2
I'm trying to resize rootfs at first start to use whole space on the SD card. Currently my image has 500Mb in size, SD card has 8Gb.
This can be done by fdisk and resize2fs utilities as described here:
h t t p ://elinux.org/RPi_Resize_Flash_Partitions
But when I'm trying to run resize2fs, I get following error:

resize2fs: Operation not permitted While trying to add group #5

I'm trying to apply the following approach (thread 68604 of this forum):

tune2fs -O ^has_journal /dev/mmcblk0p3

then recreate partition by fdisk and then:

tune2fs -O dir_index,has_journal,uninit_bg /dev/mmcblk0p3

but executing of tune2fs rises the following error message:

root@OpenWrt:~# tune2fs -O ^has_journal /dev/mmcblk0p3
tune2fs: unrecognized option: O
BusyBox v1.24.2 () multi-call binary.

Does it possible to compile Busybox with tune2fs having -O option? Or is there any other way to resize rootfs partition in OpenWRT?

(Last edited by dukenukke on 12 Sep 2017, 09:44)

Post #2
dl12345
13 Sep 2017, 11:55

You can't do this operation on a live root filesystem anyway. I regularly do this when installing a new image, but always boot some other distro off a USB memory stick and then run the tune2fs and resizefs commands

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