Introducing the DEF's Pack kernel chooser.

Linux-SWAT · Nov 14, 2011

Hi.

You can grab it here :

http://openpandora.free.fr/openpandora/def_pack/def_pack_kernel/

(if asked, i will tweak my homepage to avoid confusion with original OP page, just realized the name i choosed is too close :/)

I compiled some custom kernels, and the first choice is the original/unmodified HF6 kernel, so you can come back to it whenever you want.

Feel free to test (at your own risks) and ask me some more configs.

Enjoy.

11 december 2011 :

v0.5

-Longer timeouts to let the copy finish on slow SD cards

--== The DEF's Pack kernels ==--

Thanks to OP team :

http://pandorawiki.o...ness_Developers

Other guys :

http://pandorawiki.o...ware_Developers

And other other guys :

http://pandorawiki.o...ndex#Forum_Mods

And other other other guys :

http://boards.openpandora.org

Very special thanks to Notaz

Thanks to Patrick Volkerding :

http://slackware.com

And Stuart Winter

http://www.armedslack.org

Thanks to all LQ.org answerers :

http://www.linuxquestions.org

And, of course, Richard Stallman and Linus Torvalds.

##########

Hi !

Warning :

This package is in beta cycle.

Use it at your own risks.

Enjoy,

Linux-SWAT,

also known as DEF.

##########

Functionalities (what this pack does) :

This package is intended to give you a wide choice of 2.6.27 kernels.

##########

3 december 2011 :

v0.4

-Added Realtek 8192cu.ko and 8712u.ko modules.

-Added "depmod -ae" at end of modular kernels install.

##########

19 november 2011 :

v0.3

-Kernels + modules are now compressed, resulting in a much smaller archive.

##########

14 november 2011 :

First beta release v0.2

Available kernels :

#1 official - The official OP kernel

#2 official-nodebug - The official OP kernel without debugging options

#3 DEF's kernel - A newly compiled kernel (slim and fast, 5s less to boot, utf-8 support, etc.) :

-Removed Initial RAM filesystem and RAM disk (initramfs/initrd) support.

-Removed Forced module loading.

-Removed Forced module unloading.

-Removed Module versioning support.

-Removed Source checksum for all modules.

-Removed Support for Large Single Files.

-Added Preemptible Kernel (may drain battery faster although first tests shows estimated battery time stays the same).

-Removed IP: kernel level autoconfiguration (!).

-Added all bunch in Network packet filtering framework (Netfilter) as modules.

-Added 802.1d Ethernet Bridging as a module.

-Added 802.1Q VLAN Support as a module.

-Added all bunch in QoS and/or fair queueing as modules.

-Removed mac80211 debugging features.

-Added Plan 9 Resource Sharing Support (9P2000) as a module.

-Added Multiple devices driver support (RAID and LVM).

-Added RAID-0 (striping) mode and RAID-1 (mirroring) mode as modules.

-Added Device mapper support as a module.

-Added Bonding driver support as a module (may be fun with two usb adapters).

-Added a bunch of WLAN drivers.

-Added the 224-color Pandora Linux logo (you have to add psplash=false to your autoboot.txt in order to see it).

-Enabled utf8 for FAT32 (!!!warning, for now, FAT32 partitions are mounted case-sensitive!!!).

-Compiled NFS client as a module, not inside (!) the kernel.

-Compiled CIFS support as a module, not inside (!) the kernel.

-Selected utf8 as native language.

-Compiled Codepage 437 (United States, Canada) and NLS ISO 8859-1 (Latin 1; Western European Languages) as modules.

-Added Codepage 850 (Europe), Japanese charsets (Shift-JIS, EUC-JP), NLS ISO 8859-15 (Latin 9; Western European Languages with Euro) and NLS UTF-8 as modules.

-Added ReiserFS, JFS and XFS support.

-Disabled kernel debugging.

-Fully-enabled crypto modules.

#4 non-modular-nodebug - The official OP kernel, non-modular and without debugging options (warning : no Wi-Fi)

#5 non-modular-ultralight - A very slim, non-modular kernel (warning : no Wi-Fi)

#####

10 February 2011 :

First steps on.

Farox · Nov 17, 2011

Thanks a lot for your work.

I have HF 5 on my Pandora ( i know it's old...) . Can i install it safely or first i need to switch to HF6 ?

Thanks

gruso · Nov 17, 2011

Disclaimer: I don't know a lot about what I'm asking.

I'm led to believe that we may get better performance for sound & music production on the Pandora if we had a real time kernel. I've wondered if it would help with some of the laggy MIDI issues we have. Is this within the scope of what you're doing? If so, do you think it's worth trying?

milkshake · Nov 17, 2011

so allthough u gave a listed of what was added/removed from your kernal what benefits could I expect to find from this new custom kernal?

Linux-SWAT · Nov 17, 2011

Farox said:
Thanks a lot for your work.

I have HF 5 on my Pandora ( i know it's old...) . Can i install it safely or first i need to switch to HF6 ?

Thanks

The pleasure is mine :^)

I think it will work.

Remember it's a wip, so backup your data, just in case...

I tested only with rootfs on SD.

Gruso said:
Disclaimer: I don't know a lot about what I'm asking.

I'm led to believe that we may get better performance for sound & music production on the Pandora if we had a real time kernel. I've wondered if it would help with some of the laggy MIDI issues we have. Is this within the scope of what you're doing? If so, do you think it's worth trying?

Already though of it, but unfortunately there's no rt-patch for 2.6.27 kernels :

http://www.kernel.org/pub/linux/kernel/projects/rt/

milkshake said:
so allthough u gave a listed of what was added/removed from your kernal what benefits could I expect to find from this new custom kernal?

If you didn't find anything interesting in the changelog, i'd say as the debugging is removed and if you're not a dev, the kernel will be faster.

I clearly see the difference at boot time and when using a bluetooth mouse.

You can also expect a longer battery time.

With the DEF's kernel, i didn't used it enough to see if the preempt drain battery faster.

-Note : Will try to include external Wi-Fi support next weed end.

May also compress each modules folder to get a less heavy package.

Linux-SWAT · Nov 19, 2011

New version available :

http://boards.openpandora.org/index.php?/topic/6117-introducing-the-defs-pack-kernel-chooser/page__p__105915#entry105915

Linux-SWAT · Dec 4, 2011

New version available :

I intend to push it to the repo so i'd be happy if you can test and report/suggest.

lunixbochs · Dec 4, 2011

this requires an installer to switch kernels? can't we run a boot loader to swap kernels when a key is held on boot or sth?

Devo3d · Dec 4, 2011

i think the idea is that you can switch out multplie kernels easier. allowing those who can build kernels to build custom kernels without bloat and/or extra features. pity we can't get some newer kernel but i'll applaud it nonetheless. well done sir. giving it a go now.

Linux-SWAT · Dec 4, 2011

lunixbochs said:
this requires an installer to switch kernels? can't we run a boot loader to swap kernels when a key is held on boot or sth?

Don't know if it's possible.

The way i do keeps free disk space at maximum.

Axecop said:
i think the idea is that you can switch out multplie kernels easier. allowing those who can build kernels to build custom kernels without bloat and/or extra features. pity we can't get some newer kernel but i'll applaud it nonetheless. well done sir. giving it a go now.

Cool.

I'm still searching which hal/udev rule can be tweaked to use the lowercase option with vfat mount, making utf-8 safe.

Linux-SWAT · Dec 5, 2011

Seems IOquake 2 and 3 needs some the kernel debugging feature !!!

Only the unmodified official OP kernel can run it. Weird.

Does someone know anything about this ?

---EDIT :

Or maybe it's my compiler ?

dreamer · Dec 6, 2011

Linux-SWAT said:
-Added ReiserFS, JFS and XFS support.

Nice, but one FS we are currently still missing support for is ext4. Do you think we can expect this any time soon?

cheers

Linux-SWAT · Dec 6, 2011

As soon as a new pandora-friendly kernel will be released.

Holliefant · Dec 10, 2011

Hi Linux-SWAT,

nice that you made a new Kernel, will test it quite soon

But I wanted to ask if you have thought about compache or ramzswap (dunno how they call it nowadays

)

http://code.google.com/p/compcache/

I would really love to see that one in a Pandora Kernel other than wejps great Arch. I think that would really give some things, like

surfing a real boost.

Linux-SWAT · Dec 10, 2011

It's not a new kernel, i just recompiled the official one with different flavours, adding or removing features.

Never used compcache. May be a nice feature.

Holliefant · Dec 10, 2011

recompiled with different features

Sounds pretty new to me. I have Compcache since almost 2 Years on my Palm Pre (256MB Ram

) and wouldn´t wanna miss it.

peelie · Dec 10, 2011

installed the 2nd option

after rebooting can't start wifi (fyi i run os off sdcard)

and can't start the pnd gives me this error:

Code:

[ START ]--- Mount the PND ----------

Found a loop (/dev/loop2), using it

WARNING /dev/loop2 already mounted on /mnt/utmp/wbar /mnt/utmp/Conky /mnt/utmp/wbar /mnt/utmp/Conky skipping losetup - putting link to old mount

ln: target `/mnt/utmp/def_pack_kernel_data' is not a directory

Mounting the Union FS : mount -t aufs -o exec,noplink,dirs="/media/BOOT/pandora/appdata/def_pack_kernel_data=rw+nolwh":"/mnt/pnd/def_pack_kernel_data=rr" none "/mnt/utmp/def_pack_kernel_data"

/sbin/mount.aufs:mount.aufs.c:194: /mnt/utmp/def_pack_kernel_data: No such file or directory

WARNING : mount faild, re-tring

/sbin/mount.aufs:mount.aufs.c:194: /mnt/utmp/def_pack_kernel_data: No such file or directory

ERROR: The Union File-system is not mounted !

+++++++

Loopback devices :

/dev/loop0: [b301]:106 (/media/BOOT/pandora/menu/apps/wbar.pnd)

/dev/loop1: [b301]:125 (/media/BOOT/pandora/menu/apps/Conky.pnd)

/dev/loop2: [b301]:197 (/media/BOOT/pandora/menu/apps/def_pack_kernel-0.4-armv7a-1.pnd*)

Are mounted on :

/dev/loop0 on /mnt/utmp/wbar type squashfs (ro)

/dev/loop1 on /mnt/utmp/Conky type squashfs (ro)

For these Union :

none on /mnt/utmp/wbar type aufs (rw,si=67140077,noplink)

none on /mnt/utmp/Conky type aufs (rw,si=67140377,noplink)

ERROR: The Union File-system is not mounted !

+++++++

Loopback devices :

/dev/loop0: [b301]:106 (/media/BOOT/pandora/menu/apps/wbar.pnd)

/dev/loop1: [b301]:125 (/media/BOOT/pandora/menu/apps/Conky.pnd)

/dev/loop2: [b301]:197 (/media/BOOT/pandora/menu/apps/def_pack_kernel-0.4-armv7a-1.pnd*)

Are mounted on :

/dev/loop0 on /mnt/utmp/wbar type squashfs (ro)

/dev/loop1 on /mnt/utmp/Conky type squashfs (ro)

For these Union :

none on /mnt/utmp/wbar type aufs (rw,si=67140077,noplink)

none on /mnt/utmp/Conky type aufs (rw,si=67140377,noplink)

[ FAILED]--- Mount the PND ----------

=======================================================================================

Return code is : 8

Linux-SWAT · Dec 10, 2011

Strange.

Can you give me the output of lsmod please ?

What is the speed of your card ?

Did you rebooted instantly ?

Darkknight512 · Dec 10, 2011

Hmm, I tried option 3, and my pandora boots up saying, cannot load kernel. Then it tells me to reflash.

Guess it might have been a bad idea to try that on HF6A4

Edit: Same thing happened with HF6

Edit: option 2 does not work for me under HF6 either.

peelie · Dec 11, 2011

Linux-SWAT said:
Strange.

Can you give me the output of lsmod please ?

What is the speed of your card ?

Did you rebooted instantly ?

lsmod gives me empty fields

using a 8G Class 4 SD card

yes i rebooted immediately

Introducing the DEF's Pack kernel chooser.

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