How to resize root directory on Redmi Note7

[zhaiker]

I used the obsolete Redmi Note7 to change the DC direct power supply, and used OTG to build a home Nas but the root directory space is not enough after installing the admin panel, how can I expand the root directory space?

[OtaDr]

From what did you install ?
directly https://ubuntu.com/download/server/arm ?

if so, then when installing Ubuntu in the step of selecting the disc you can set ( change ) the size of /

[zhaiker]

@OtaDr Installation of Ubuntu Touch via Termina l

[OtaDr]

I'm just guessing can you run the installation like on a PC or is it fully automatic?

[gucong]

我也用redmi note 7，我将system分区扩展到了12G。

#* 把Ubuntu Touch的parted存到电脑上
$ adb shell which parted
/usr/sbin/parted
$ adb pull /usr/sbin/parted ./

#* 手机重启到recovery，比如TWRP或OrangeFox
$ adb reboot recovery

#* 稍等片刻，等待手机进入recovery，

#* 将电脑上存的parted传入recovery
$ adb push ./parted /sbin

#* 进入 adb shall，启动parted
$ adb shell
$ chmod 755 /sbin/parted
$ sudo parted /dev/mmcblk0

#* 默认单位改成B
(parted) unit B

#* 查看目前分区状况
(parted) print

#* 将system分区及其以后的分区信息妥善保存，比如这样：
#* 63 1140850688B 13958643711B 12817793024B ext4 system
#* 64 13958643712B 16106127359B 2147483648B ext2 vendor
#* 65 16106127360B 17179869183B 1073741824B ext4 cust
#* 66 17179869184B 62491773951B 45311904768B ext4 userdata

#* 删除vendor分区
(parted) rm 64
#* 删除cust分区
(parted) rm 65
#* 删除userdata分区
(parted) rm 66

#* 查看目前分区状况
(parted) print

#* 将system分区的结尾位置改成13GiB，
(parted) resizepart 63 13GiB
(parted) print

#* 重建vendor分区，位置为13GiB~15GiB
(parted) mkpart vendor ext2 13GiB 15GiB
(parted) print

#* 重建cust分区，位置为15GiB~16GiB
(parted) mkpart cust ext4 15GiB 16GiB
(parted) print

#* 重建userdata分区，位置为16GiB~以前的结尾位置
(parted) mkpart userdata ext4 16GiB 45311904768B
(parted) print

退出
(parted) quit