How to expand the OS disk on the SD card on Maix-II ?

[chayitw]

Hi All,
我使用目前的鏡像版本 "maixpy3-0.3.5_MaixII-Dock_20211216.img",
由於其根目錄僅有254.5M的大小, 所以參考底下這篇說明想試著擴增到2G:
https://www.cnblogs.com/USTHzhanglu/p/15207336.html

   但也僅能擴增到381.8M, 雖然可以開機, 但並沒有成功完成擴增, 底下是操作過程紀錄,
   可以給一些建議嗎? 感謝。

新年快樂
-chayi

BusyBox v1.27.2 () built-in shell (ash)

------run profile file-----

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/ |/ /__ ()_ __ / / ()__ __ ____ __
/ /|/ / _ `/ /\ \ / / /__/ / _ / // /\ \ /
// //_,///_\ //////_,//_\

root@sipeed:/# [framebuffer](240,240, 24bpp)

root@sipeed:/# fdisk -l

Disk /dev/mmcblk0: 29.1 GiB, 31266439168 bytes, 61067264 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: AB6F3888-569A-4926-9668-80941DCB40BC

Device Start End Sectors Size Type
/dev/mmcblk0p1 49152 49663 512 256K Microsoft basic data
/dev/mmcblk0p2 49664 54159 4496 2.2M Microsoft basic data
/dev/mmcblk0p3 54160 578447 524288 256M Microsoft basic data
/dev/mmcblk0p4 578448 609167 30720 15M Microsoft basic data
/dev/mmcblk0p5 609168 61067230 60458063 28.8G Microsoft basic data

root@sipeed:/# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 254.5M 147.8M 101.6M 59% /
tmpfs 29.4M 16.0K 29.4M 0% /tmp
none 29.3M 0 29.3M 0% /dev
/dev/mmcblk0p5 28.8G 48.0K 28.8G 0% /mnt/UDISK
/dev/mmcblk0p5 28.8G 48.0K 28.8G 0% /root
root@sipeed:/# fdisk /dev/mmcblk0

Welcome to fdisk (util-linux 2.25.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): d
Partition number (1-5, default 5): 3

Partition 3 has been deleted.

Command (m for help): d
Partition number (1,2,4,5, default 5): 4

Partition 4 has been deleted.

Command (m for help): d
Partition number (1,2,5, default 5): 5

Partition 5 has been deleted.

Command (m for help): n
Partition number (3-5, default 3): 3
First sector (54160-61067230, default 55296): 54160
Last sector, +sectors or +size{K,M,G,T,P} (54160-61067230, default 61067230): +2G

Created a new partition 3 of type 'Linux filesystem' and of size 2 GiB.

Command (m for help): n
Partition number (4,5, default 4): 4
First sector (4247552-61067230, default 4247552):
Last sector, +sectors or +size{K,M,G,T,P} (4247552-61067230, default 61067230): +1G

Created a new partition 4 of type 'Linux filesystem' and of size 1 GiB.

Command (m for help): n
Selected partition 5
First sector (6344704-61067230, default 6344704):
Last sector, +sectors or +size{K,M,G,T,P} (6344704-61067230, default 61067230):

Created a new partition 5 of type 'Linux filesystem' and of size 26.1 GiB.

Command (m for help): x

Expert command (m for help): n
Partition number (1-5, default 5): 3

New name: rootfs

Partition name changed from '' to 'rootfs'.

Expert command (m for help): n
Partition number (1-5, default 5): 4

New name: swap

Partition name changed from '' to 'swap'.

Expert command (m for help): n
Partition number (1-5, default 5): 5

New name: UDISK

Partition name changed from '' to 'UDISK'.

Expert command (m for help): r

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Re-reading the partition table failed.: Resource busy

The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8).

root@sipeed:/# reboot
root@sipeed:/# Stopping ntpd: done
Stop dropbear: OK
Stopping telnetd: start-stop-daemon: warning: killing process 840: No such process
FAIL
Stopping network...
Saving random seed... done.
disable android usb
sh: write error: No such device
Stopping app...
killall: python3: no process killed
Stopping logging: OK
save /etc/asound.conf ...
Unload mpp modules
module is not loaded
module is not loaded
module is not loaded
umount: none busy - remounted read-only
The system is going down NOW!
Sent SIGTERM to all processes
Sen[30]HELLO! BOOT0 is starting!
[32]BOOT0 commit : e3b2a9e
[35]board init start
[37]set pll start
[40]set pll end
[41][pmu]: bus read error
[44][pmu]: bus read error
[46]board init ok
[48]chip id check OK
[50]DRAM BOOT DRIVE INFO: V0.41
[53]DRAM CLK = 528 MHz
[55]DRAM Type = 2 (2:DDR2,3:DDR3)
[59]DRAMC read ODT off.
[61]DRAM ODT off.
[63]DRAM SIZE =64 M
[70]DRAM simple test OK.
[72]rtc standby flag is 0x0, super standby flag is 0x0
[77]dram size =64
MESSAGE: [0x0] TEE-CORE: OP-TEE version: sun8iw19p1_v0.6.0-14-gf6954e7 #1 2019年 11月 21日 星期四 01:34:42 UTC arm
ERROR: [0x0] TEE-CORE:platform_standby_fdt_parse:126: no pmu node
ERROR: [0x0] TEE-CORE:sunxi_twi_parse_from_dt:84: no pmu node
------run rc.preboot file-----
setup console
fbv - The Framebuffer Viewer
/home/res/logo.png
140 x 140
swapon: /dev/mmcblk0p4: Invalid argument
Setting up swapspace version 1, size = 1073737728 bytes
------run rc.modules file-----
------run rc.final file-----
Load mpp modules
insmod: can't insert '/lib/modules/4.9.118/videobuf2-core.ko': No such file or directory
insmod: can't insert '/lib/modules/4.9.118/videobuf2-memops.ko': No such file or directory
insmod: can't insert '/lib/modules/4.9.118/videobuf2-v4l2.ko': No such file or directory
load /etc/asound.conf ...
alsactl: set_control:1461: Cannot write control '2:0:0:codec trigger playback time value:0' : Operation not permitted
alsactl: set_control:1461: Cannot write control '2:0:0:codec trigger capture time value:0' : Operation not permitted
Starting app...
enable android usb
Initializing random number generator... done.
Starting network...
Starting telnetd: OK
Start dropbear: OK
Starting ntpd: done

BusyBox v1.27.2 () built-in shell (ash)

------run profile file-----

---

/ |/ /__ ()_ __ / / ()__ __ ____ __
/ /|/ / _ `/ /\ \ / / /__/ / _ / // /\ \ /
// //_,///_\ //////_,//_\

root@sipeed:/# [framebuffer](240,240, 24bpp)

root@sipeed:/# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 254.5M 147.8M 101.6M 59% /
tmpfs 29.4M 16.0K 29.4M 0% /tmp
none 29.3M 0 29.3M 0% /dev
/dev/mmcblk0p5 26.1G 48.0K 26.1G 0% /mnt/UDISK
/dev/mmcblk0p5 26.1G 48.0K 26.1G 0% /root
root@sipeed:/# fdisk -l

Disk /dev/mmcblk0: 29.1 GiB, 31266439168 bytes, 61067264 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: AB6F3888-569A-4926-9668-80941DCB40BC

Device Start End Sectors Size Type
/dev/mmcblk0p1 49152 49663 512 256K Microsoft basic data
/dev/mmcblk0p2 49664 54159 4496 2.2M Microsoft basic data
/dev/mmcblk0p3 54160 4247551 4193392 2G Linux filesystem
/dev/mmcblk0p4 4247552 6344703 2097152 1G Linux filesystem
/dev/mmcblk0p5 6344704 61067230 54722527 26.1G Linux filesystem

root@sipeed:/# resize2fs /dev/root
resize2fs 1.42.12 (29-Aug-2014)
Filesystem at /dev/root is mounted on /; on-line resizing required
old_desc_blocks = 1, new_desc_blocks = 1
resize2fs: Invalid argument While checking for on-line resizing support
root@sipeed:/# fdisk -l

Disk /dev/mmcblk0: 29.1 GiB, 31266439168 bytes, 61067264 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: AB6F3888-569A-4926-9668-80941DCB40BC

Device Start End Sectors Size Type
/dev/mmcblk0p1 49152 49663 512 256K Microsoft basic data
/dev/mmcblk0p2 49664 54159 4496 2.2M Microsoft basic data
/dev/mmcblk0p3 54160 4247551 4193392 2G Linux filesystem
/dev/mmcblk0p4 4247552 6344703 2097152 1G Linux filesystem
/dev/mmcblk0p5 6344704 61067230 54722527 26.1G Linux filesystem

root@sipeed:/# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 381.8M 147.8M 228.8M 39% /
tmpfs 29.4M 16.0K 29.4M 0% /tmp
none 29.3M 0 29.3M 0% /dev
/dev/mmcblk0p5 26.1G 48.0K 26.1G 0% /mnt/UDISK
/dev/mmcblk0p5 26.1G 48.0K 26.1G 0% /root
root@sipeed:/#

[junhuanchen]

look this https://github.com/USTHzhanglu/Tina-Image-Scripts

[chayitw]

look this https://github.com/USTHzhanglu/Tina-Image-Scripts

hi @junhuanchen ,
謝謝, 這個問題我自己解掉了, 剛看了一下您提供的連結, 發現很棒, 它考慮的更多、更詳盡,
如果有人單純是要做rootfs磁區擴增(分區擴容), 底下是我的方式以及一些紀錄,
也提供給社區成員參考看看。
謝謝,
chayi

@chayitw

To expand the OS disk on the SD card on Maix-II

主要參考網址: https://www.cnblogs.com/USTHzhanglu/p/15207336.html

1. 燒錄鏡像v831-m2dock-maixpy3-0.4.0-20220114.img到SD卡。

   (原本的磁區大小為)
   Device Start End Sectors Size Type
   /dev/mmcblk0p1 49152 49663 512 256K Microsoft basic data
   /dev/mmcblk0p2 49664 57855 8192 4M Microsoft basic data
   /dev/mmcblk0p3 57856 844287 786432 384M Microsoft basic data
   /dev/mmcblk0p4 844288 62333918 61489631 29.3G Microsoft basic data

2. 取出SD卡到一般的UNIX系統，來擴充磁區大小:
   $sudo fdisk /dev/sdb

   (比如擴增成如下, p3在模組上由384M擴增為20G)
   Device Start End Sectors Size Type
   /dev/mmcblk0p1 49152 49663 512 256K Microsoft basic data
   /dev/mmcblk0p2 49664 57855 8192 4M Microsoft basic data
   /dev/mmcblk0p3 57856 42000383 41942528 20G Linux filesystem
   /dev/mmcblk0p4 42000384 62333918 20333535 9.7G Linux filesystem

   (預計在模組上會看到如下根目錄/變為19.9G)
   root@sipeed:/# df -h
   Filesystem Size Used Available Use% Mounted on
   /dev/root 19.9G 283.1M 19.6G 1% /
   tmpfs 29.4M 16.0K 29.4M 0% /tmp
   none 29.3M 0 29.3M 0% /dev
   /dev/mmcblk0p4 9.7G 24.0K 9.7G 0% /mnt/UDISK
   /dev/mmcblk0p4 9.7G 24.0K 9.7G 0% /root

   相關細節請見文末。

3. 進行 e2fsck & resize2fs以讓FileSystem大小相符
   $sudo umount /media/chayi/(rootfs)
   $sudo e2fsck -f /dev/sdb3
   $sudo resize2fs /dev/sdb3

4. 回到模組，開機成功且擴充完成。

附錄

A.有關第2項相關細節操作供參考:

$sudo fdisk /dev/sdb

Welcome to fdisk (util-linux 2.31.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

命令 (m 以獲得說明)： p
Disk /dev/sdb: 29.7 GiB, 31914983424 bytes, 62333952 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: AB6F3888-569A-4926-9668-80941DCB40BC

所用裝置 Start 結束 磁區 Size 類型
/dev/sdb1 49152 49663 512 256K Microsoft basic data
/dev/sdb2 49664 57855 8192 4M Microsoft basic data
/dev/sdb3 57856 844287 786432 384M Microsoft basic data
/dev/sdb4 844288 62333918 61489631 29.3G Microsoft basic data

命令 (m 以獲得說明)： d
分割區編號 (1-4, default 4): 3

Partition 3 has been deleted.

命令 (m 以獲得說明)： d
分割區編號 (1,2,4, default 4): 4

Partition 4 has been deleted.

命令 (m 以獲得說明)： n
分割區編號 (3,4, default 3): 3
First sector (57856-62333918, default 59392): 57856
Last sector, +sectors or +size{K,M,G,T,P} (57856-62333918, default 62333918): +20G

Created a new partition 3 of type 'Linux filesystem' and of size 20 GiB.
Partition #3 contains a ext4 signature.

Do you want to remove the signature? [Y]es/[N]o: y

The signature will be removed by a write command.

命令 (m 以獲得說明)： p
Disk /dev/sdb: 29.7 GiB, 31914983424 bytes, 62333952 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: AB6F3888-569A-4926-9668-80941DCB40BC

所用裝置 Start 結束 磁區 Size 類型
/dev/sdb1 49152 49663 512 256K Microsoft basic data
/dev/sdb2 49664 57855 8192 4M Microsoft basic data
/dev/sdb3 57856 42000383 41942528 20G Linux filesystem

Filesystem/RAID signature on partition 3 will be wiped.

命令 (m 以獲得說明)： n
Selected partition 4
First sector (42000384-62333918, default 42000384):
Last sector, +sectors or +size{K,M,G,T,P} (42000384-62333918, default 62333918):

Created a new partition 4 of type 'Linux filesystem' and of size 9.7 GiB.

命令 (m 以獲得說明)： x

專家命令 (m 以獲得說明)： n
分割區編號 (1-4, default 4): 3

New name: rootfs

Partition name changed from '' to 'rootfs'.

專家命令 (m 以獲得說明)： n
分割區編號 (1-4, default 4): 4

New name: UDISK

Partition name changed from '' to 'UDISK'.

專家命令 (m 以獲得說明)： r

命令 (m 以獲得說明)： w
The partition table has been altered.
Failed to remove partition 4 from system: 裝置或系統資源忙碌中
Failed to update system information about partition 3: 裝置或系統資源忙碌中
Failed to add partition 4 to system: 裝置或系統資源忙碌中

The kernel still uses the old partitions. The new table will be used at the next reboot.
Syncing disks.
(如有上述訊息, 重插拔SD卡即可看到partions被更新。或先umount後再來進行fdisk也可以)

B.有關第3項相關細節供參考:

$sudo umount /media/chayi/(rootfs)
$sudo e2fsck -f /dev/sdb3
e2fsck 1.44.1 (24-Mar-2018)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/sdb3: 4137/6000 files (0.0% non-contiguous), 72667/98304 blocks

$sudo resize2fs /dev/sdb3
resize2fs 1.44.1 (24-Mar-2018)
Resizing the filesystem on /dev/sdb3 to 5242816 (4k) blocks.
The filesystem on /dev/sdb3 is now 5242816 (4k) blocks long.