[Arm-dev] Extending partition on SD card on Rpi-3
Robert Moskowitz
rgm at htt-consult.com
Wed Aug 1 12:15:26 UTC 2018
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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