夸克开发板在SD卡模式扩容

操作前进入root,以免发生一些奇怪的问题

首先安装 cloud-utils

apt-get install cloud-utils

推荐重启

reboot

# 查看磁盘信息

root@Quark-N:~# fdisk -l
Disk /dev/mmcblk0: 14.9 GiB, 15931539456 bytes, 31116288 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: dos
Disk identifier: 0x41efd092

Device         Boot   Start      End  Sectors  Size Id Type
/dev/mmcblk0p1        49152   131071    81920   40M 83 Linux
/dev/mmcblk0p2       131072  2588671  2457600  1.2G 83 Linux
/dev/mmcblk0p3      2588672 19455999 16867328    8G 83 Linux


Disk /dev/mmcblk1: 14.7 GiB, 15758000128 bytes, 30777344 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: dos
Disk identifier: 0x41efd092

Device         Boot   Start      End  Sectors  Size Id Type
/dev/mmcblk1p1        49152   131071    81920   40M 83 Linux
/dev/mmcblk1p2       131072  2588671  2457600  1.2G 83 Linux
/dev/mmcblk1p3      2588672 30777343 28188672 13.5G 83 Linux


Disk /dev/mmcblk1boot1: 4 MiB, 4194304 bytes, 8192 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


Disk /dev/mmcblk1boot0: 4 MiB, 4194304 bytes, 8192 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

root@Quark-N:~# parted -l
Error: /dev/mmcblk1boot0: unrecognised disk label
Model: Generic SD/MMC Storage Card (sd/mmc)   
Disk /dev/mmcblk1boot0: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Model: MMC 016GB0 (sd/mmc)
Disk /dev/mmcblk1: 15.8GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      25.2MB  67.1MB  41.9MB  primary  fat16
 2      67.1MB  1325MB  1258MB  primary  ext4
 3      1325MB  15.8GB  14.4GB  primary  ext4


Error: /dev/mmcblk1boot1: unrecognised disk label
Model: Generic SD/MMC Storage Card (sd/mmc)   
Disk /dev/mmcblk1boot1: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Model: SD SU16G (sd/mmc)
Disk /dev/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      25.2MB  67.1MB  41.9MB  primary  fat16
 2      67.1MB  1325MB  1258MB  primary  ext4
 3      1325MB  9961MB  8636MB  primary  ext4

可以看到 /dev/mmcblk0的 /dev/mmcblk0p3只有8G,这是原版镜像的默认分区信息,我的SD卡有14G空余

# 通过 growpart 增大分区3
root@Quark-N:~# growpart /dev/mmcblk0 3
CHANGED: partition=3 start=2588672 old: size=16867328 end=19456000 new: size=28527583,end=31116255

# 检查扩容是否成功
root@Quark-N:~# parted -l /dev/mmcblk0
Error: /dev/mmcblk1boot0: unrecognised disk label
Model: Generic SD/MMC Storage Card (sd/mmc)                             
Disk /dev/mmcblk1boot0: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Model: MMC 016GB0 (sd/mmc)
Disk /dev/mmcblk1: 15.8GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      25.2MB  67.1MB  41.9MB  primary  fat16
 2      67.1MB  1325MB  1258MB  primary  ext4
 3      1325MB  15.8GB  14.4GB  primary  ext4


Error: /dev/mmcblk1boot1: unrecognised disk label
Model: Generic SD/MMC Storage Card (sd/mmc)                             
Disk /dev/mmcblk1boot1: 4194kB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags: 

Model: SD SU16G (sd/mmc)
Disk /dev/mmcblk0: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      25.2MB  67.1MB  41.9MB  primary  fat16
 2      67.1MB  1325MB  1258MB  primary  ext4
 3      1325MB  15.9GB  14.6GB  primary  ext4

可以看到3号分区完成扩容

继续扩容文件系统

# 创建临时目录
root@Quark-N:~# mkdir /tmp/d

# 挂载目录
root@Quark-N:~# mount /dev/mmcblk0p3 /tmp/d

root@Quark-N:~# resize2fs -f /dev/mmcblk0p3
resize2fs 1.42.13 (17-May-2015)
Filesystem at /dev/mmcblk0p3 is mounted on /tmp/p3; on-line resizing required
old_desc_blocks = 33, new_desc_blocks = 55
The filesystem on /dev/mmcblk0p3 is now 14263788 (1k) blocks long.

重启

reboot

完成~