Changes

Orange Pi Zero 2W

2,564 bytes added, 17:17, 25 September 2023

→‎Method to prohibit automatic expansion of rootfs partition capacity in TF card

<li>First, burn the Linux image of the development board into the TF card on the '''Ubuntu computer''' (Windows is not available), and '''then unplug and insert the TF card again'''.</li>

<li>Then the Ubuntu computer will usually automatically mount the partition of the TF card. If the automatic mounting is normal, use the ls command to see the following output.

{| class="wikitable" style="width:800px;"

|-

|

test@test:~$ '''ls /media/test/opi_root/'''

bin    boot    dev    etc    home    lib    lost+found    media    mnt    opt    proc    root    run sbin    selinux    srv    sys    tmp    usr    var|}</li>

<li>Then switch the current user to the root user on the Ubuntu computer

{| class="wikitable" style="width:800px;"

|-

|

test@test:~$ '''sudo -i'''

[sudo] test ~~的密码:~~ 的密码：root@test:~'''#'''|}</li>

<li>Then enter the root directory of the Linux system in the TF card and create a new file named '''.no_rootfs_resize'''

{| class="wikitable" style="width:800px;"

|-

|

root@test:~# '''cd /media/test/opi_root/'''

root@test:/media/test/opi_root/# '''cd root'''

root@test:/media/test/opi_root/root# '''touch .no_rootfs_resize'''

root@test:/media/test/opi_root/root# '''ls .no_rootfs*'''

'''.no_rootfs_resize'''|}</li>

<li>Then you can uninstall the TF card, then pull out the TF card and insert it into the development board to start. When the Linux system starts, when the '''.no_rootfs_resize''' file is detected in the '''/root''' directory, rootfs will not be automatically expanded.</li>

<li>After disabling the automatic expansion of rootfs, you can enter the Linux system and you can see that the total capacity of the rootfs partition is only 4GB (the image tested here is the desktop version), which is much smaller than the actual capacity of the TF card, indicating that the automatic expansion of rootfs has been successfully disabled.

{| class="wikitable" style="width:800px;"

|-

|

orangepi@orangepi:~$ '''df -h'''

<pspan style="margin-right: 80px;">Filesystem Size Used Avail Use% Mounted on</pspan> <pspan style="margin-right: 110px;">udev 925M 0 925M 0% /dev</pspan> <pspan style="margin-right: 100px;">tmpfs 199M 3.2M 196M 2% /run</pspan> <pspan style="margin-right: 25px;color:#FF0000">'''/dev/mmcblk0p1 ''''''4.0G ''''''3.2G ''''''686M ''''''83% /'''</pspan> |}</li><li>If you need to re-expand the capacity of the rootfs partition in the TF card, just execute the following command and then restart the Linux system of the development board.{| class="wikitable" style="background-color:#ffffdc;width:800px;" |-| <~~/li></ol~~big> '''Note, please execute the following command under the root user.'''</big>|}{| class="wikitable" style="width:800px;" |-|

root@orangepi:~# '''rm /root/.no_rootfs_resize'''

root@orangepi:~# '''sudo reboot'''

|}

After restarting, enter the Linux system of the development board again and you will see that the rootfs partition has been expanded to the actual capacity of the TF card.

{| class="wikitable" style="width:800px;"|-|root@orangepi:~# $ '''df -h''' Filesystem Size Used Avail Use% Mounted on udev 925M 0 925M 0% /dev tmpfs 199M 3.2M 196M 2% /run '''/dev/mmcblk0p1 ''''''15G ''''''3.2G ''''''12G ''''''23% /''' |}</li></ol>

~~~~

=== Method to manually expand the capacity of rootfs partition in TF card ===

Admin

Bureaucrats, Administrators

8,367

edits

Wiki-Orange Pi β

Changes

Orange Pi Zero 2W

Wiki-Orange Pi ^β