[Arm-dev] Extending partition on SD card on Rpi-3

[Robert Moskowitz]

If you have a Linux desktop, try something like gparted.  I have used 
this since I started with Fedora-arm 18.  It makes it easy to resize all 
your partitions.

Since I use Cubieboards, I can build a small mSD card with only the 
uboot on it and put all the partitions on a sata drive.  I believe that 
other Allwinner uboots (for boards with sata) work this way.

So I can drop the image on a sata drive, enlarge and move all the 
partitions and I am ready to go.



On 07/31/2018 09:20 PM, Chris Smith wrote:
> And just to follow up, you can omit the "e2fsck" command. Simply a 
> growpart and then a resize2fs should be sufficient, as I have just 
> tested it.
>
> Thanks,
>
> Chris
>
> On Tue, Jul 31, 2018 at 8:29 PM, Chris Smith <smittyinthesky at gmail.com 
> <mailto:smittyinthesky at gmail.com>> wrote:
>
>     Vamsi,
>
>     I have run into this same issue and have a brief (and rough) guide
>     if you wish to try it out.
>
>     First, run "df -h" and see what your current "/" partition size
>     is. I think with the default image, it's somewhere around 1.8GB.
>
>     Next, you should be able to run "growpart /dev/mmcblkx n" where x
>     likely refers to mmcblk0 and n is the partition number, it should
>     be 3. This will grow your 3rd partition to the maximum available
>     size, but I believe you should be able to specify your 6GB size.
>
>     Once that is complete, run "e2fsck /dev/mmcblk0p3" to verify
>     filesystem integrity and then "resize2fs /dev/mmcblk0p3" to expand
>     the ext4 partition.
>
>     If you run "df -h" after this, you should be able to see your now
>     larger "/" partition.
>
>     Let me know if you have any issues with this. I've been looking
>     for a reason to organize my thoughts on this.
>
>     Thanks!
>
>     Chris
>
>     On Tue, Jul 31, 2018 at 10:10 AM, Pablo Sebastián Greco
>     <pablo at fliagreco.com.ar <mailto:pablo at fliagreco.com.ar>> wrote:
>
>         There is a script called rootfs-expand which should do exactly
>         that.
>         Please let us know who it went.
>
>         Pablo.
>
>         El 31/7/18 a las 10:55, vamsi krishna escribió:
>>         Hi Team,
>>
>>         Being new to the Linux world, I have installed Centos for R
>>         Pi3 on a 16gb microSD card, and partitions are done by
>>         default, leaving less space for root file system. Here is
>>         what I get.
>>
>>         This is the second time I am running into this issue.
>>
>>         Can anyone help me with the steps to increase the size for
>>         /dev/root to 6G please.
>>
>>
>>         Operating System: CentOS Linux 7 (Core)
>>                CPE OS Name: cpe:/o:centos:centos:7
>>                     Kernel: Linux 4.14.27-v7.1.el7
>>               Architecture: arm
>>
>>         [root at rpi ~]# df -h
>>         Filesystem      Size  Used Avail Use% Mounted on
>>         /dev/root       1.4G  999M  347M 75% /
>>         devtmpfs        460M     0  460M  0% /dev
>>         tmpfs           464M     0  464M  0% /dev/shm
>>         tmpfs           464M   12M  452M  3% /run
>>         tmpfs           464M     0  464M  0% /sys/fs/cgroup
>>         /dev/mmcblk0p1  667M   43M  625M  7% /boot
>>         tmpfs            93M     0   93M  0% /run/user/0
>>
>>         Any help is highly appreciated.
>>         -- 
>>         Have a nice day.
>>
>>         Thanks and regards,
>>         Vamsi,
>>         Skype @ kvamsi.k143
>>         +91-9704433304.
>>
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