[gentoo-user] swap partition on Raspberry

[gentoo-user] swap partition on Raspberry

[fruktopus]

Hello,

i am setting up gentoo a Raspberry (B) following the gentoo wiki [1],
first i prepare the SD-Card. The wiki links to the instructions over at
embedded linux wiki [2].

I wonder about the disk layout.

Q1: Do i need a swap partition, and if yes is 512m ok?

The gentoo wiki creates one, the elinux wiki not.

Q2: Also the Raspberry is likely to be powered down without warning. To
my belief jounarled filesystems can handle this. I plan to use JFS since
it works well on my desktop as well. Is there something I could have in
mind?

Q3: The gentoo wiki briefly mentions to use squashfs for /usr/portage.
What will be the benefits of this?

[1] http://wiki.gentoo.org/wiki/Raspberry_Pi
[2] http://elinux.org/RPi_Advanced_Setup

  frukto

Re: [gentoo-user] swap partition on Raspberry

[Jan Hönig]

[-- Attachment #1: Type: text/plain, Size: 2060 bytes --]

Hello,
well i have set my Raspberry (B) with ArchLinuxArm. I decided againts
gentoo, because of the long compilling time (for example git takes a long
time). Maybe i try gentoo on my second sd card...

A1: I have set an extra swap partition. I followed this guide for resizing
my main partition (i have a 16 GB sd card class 10) and setting the wap
partition (or rather swap file?): Raspberry Pi – Partition an größere
Sd-Karte anpassen [1]
It is in german, but i think that if you are using gentoo, you should be
able to follow just the commands, knowing what they do.
I am not sure, how much swap you need, because you maybe need space for
compilation of programs. Because of this fact i would encourage you to set
a swap. How much swap you need/can give depends on the sd card. (I
wouldnt't make 1GB swap on a 4GB card).
I look forward to hearing more of you, because there are not that many
people, talking about gentoo on raspberry (or rather i didn't found many).

Can't answer A2, and A3, not enough knowledge.

hrom

[1] Setup Partitions on Raspberry
Pi<http://sparky0815.de/2012/05/raspberry-pi-partition-an-grosere-sd-karte-anpassen/>


On Fri, Jun 7, 2013 at 1:39 PM, fruktopus <fruktopus@gmail.com> wrote:

> Hello,
>
> i am setting up gentoo a Raspberry (B) following the gentoo wiki [1],
> first i prepare the SD-Card. The wiki links to the instructions over at
> embedded linux wiki [2].
>
> I wonder about the disk layout.
>
> Q1: Do i need a swap partition, and if yes is 512m ok?
>
> The gentoo wiki creates one, the elinux wiki not.
>
> Q2: Also the Raspberry is likely to be powered down without warning. To
> my belief jounarled filesystems can handle this. I plan to use JFS since
> it works well on my desktop as well. Is there something I could have in
> mind?
>
> Q3: The gentoo wiki briefly mentions to use squashfs for /usr/portage.
> What will be the benefits of this?
>
> [1] http://wiki.gentoo.org/wiki/Raspberry_Pi
> [2] http://elinux.org/RPi_Advanced_Setup
>
>   frukto
>
>

[-- Attachment #2: Type: text/html, Size: 2721 bytes --]

Re: [gentoo-user] swap partition on Raspberry

[William Kenworthy]

On 07/06/13 23:46, Jan Hönig wrote:
> Hello,
> well i have set my Raspberry (B) with ArchLinuxArm. I decided againts
> gentoo, because of the long compilling time (for example git takes a long
> time). Maybe i try gentoo on my second sd card...
> 
> A1: I have set an extra swap partition. I followed this guide for resizing
> my main partition (i have a 16 GB sd card class 10) and setting the wap
> partition (or rather swap file?): Raspberry Pi – Partition an größere
> Sd-Karte anpassen [1]
> It is in german, but i think that if you are using gentoo, you should be
> able to follow just the commands, knowing what they do.
> I am not sure, how much swap you need, because you maybe need space for
> compilation of programs. Because of this fact i would encourage you to set
> a swap. How much swap you need/can give depends on the sd card. (I
> wouldnt't make 1GB swap on a 4GB card).
> I look forward to hearing more of you, because there are not that many
> people, talking about gentoo on raspberry (or rather i didn't found many).
> 
> Can't answer A2, and A3, not enough knowledge.
> 
> hrom
> 
> [1] Setup Partitions on Raspberry
> Pi<http://sparky0815.de/2012/05/raspberry-pi-partition-an-grosere-sd-karte-anpassen/>
> 
> 
> On Fri, Jun 7, 2013 at 1:39 PM, fruktopus <fruktopus@gmail.com> wrote:
> 
>> Hello,
>>
>> i am setting up gentoo a Raspberry (B) following the gentoo wiki [1],
>> first i prepare the SD-Card. The wiki links to the instructions over at
>> embedded linux wiki [2].
>>
>> I wonder about the disk layout.
>>
>> Q1: Do i need a swap partition, and if yes is 512m ok?
>>
>> The gentoo wiki creates one, the elinux wiki not.
>>
>> Q2: Also the Raspberry is likely to be powered down without warning. To
>> my belief jounarled filesystems can handle this. I plan to use JFS since
>> it works well on my desktop as well. Is there something I could have in
>> mind?
>>
>> Q3: The gentoo wiki briefly mentions to use squashfs for /usr/portage.
>> What will be the benefits of this?
>>
>> [1] http://wiki.gentoo.org/wiki/Raspberry_Pi
>> [2] http://elinux.org/RPi_Advanced_Setup
>>
>>   frukto
>>
>>
> 


using 256M - doesnt use it much but it currently just plays videos on
framebuffer.

Be careful using ext file systems and stock 4G cards - runs out of
inodes on large compiles.  I installed from a gentoo image off the net
and rebuilt it.  When I get time I'll do my own from scratch but its
working ...

BillK