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

Also consider that the /boot partition may not be larger enough for more 
than 3 kernels.  Note that we are having kernels problems over on 
fedora28.  I have 6 kernels until I am confident that they have finally 
fixed the weird problems we are seeing.  Now Centos would probably not 
be in a kernel of the week mode, so we may NOT need a larger /boot 
partition.

But after my Fedora experience I will probably increase /boot by 50%....

Also swap is pretty small if you are running a lot of server tasks. But 
then that does depend on how much real memory on your board.



On 07/31/2018 10:47 PM, Robert Moskowitz wrote:
> 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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