[Gta04-owner] QtMoko v49

Griera griera at gmail.com
Thu Nov 22 10:23:13 CET 2012


Hi:

On Thu, 22 Nov 2012 09:59:00 +0100
"Dr. H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> Hi Radek,
> 
> Am 22.11.2012 um 09:13 schrieb Radek Polak:
> 
> > On Thursday, November 22, 2012 01:44:59 AM EdorFaus wrote:
> > 
> >> The reason this is not possible, is because one of p1..p4 is used up by
> >> the extended partition that contains the remaining partitions (as the
> >> primary table only has room for 4, and we have to know where to find the
> >> rest).
> > 
> > Yup i have noticed it now too. So for next QtMoko release the recommended 
> > partition scheme is:
> > 
> > p1 - small fat - used for gta04-init and for upgrading the NAND bootloader
> > p2 - ext4 with rootfs for QtMoko
> > p3 - ext3 with rootfs for SHR
> > p4 - extended partition
> > p5 - FAT with media
> > p6..p9 - optinal - can be used for more distros, that use gta04-init
> 
> Looks very complicated to me and makes it even more difficult to burn
> a working SD card than before.

Difficult, but only have to do once. And the advantage is that you can
have multiple distributions on one card for testing.

Regards. Griera.


> 
> > 
> > So this enables us to boot 2 distros on SD from the bootloader menu and 
> > inifinitely more using gta04-init.
> > 
> > This looks like only sane schema to me. We cant skip the first FAT because you 
> > would have no way to flash new bootloader then. And also gta04-init is using 
> 
> The FAT partition is intended to be used only on a separate SD card to flash
> the bootloader. Since this is probably not done every day and is best done
> through the hw-validation image (which needs 2 partitions incompatible to
> your scheme), I would simply ignore that special case for a QtMoko SD card.
> 
> > it for the advanced booting to extended partitions and to chroots.
> > 
> > We also cant skip the p4 since we need separate partition for media.
> 
> The other question I have is why QtMoko needs to recommend a SHR partition?
> 
> Since I am a friend of "KISS", I would recommend that every distro simply
> is expanded to any (properly) formatted *single* partition.
> 
> So if the SD has 4 partitions it is like 4 disks on a single physical rack.
> And the AUX boot menu allows to choose which disk. If it only has one - fine! 
> 
> If the user wants to have a FAT media partition, let him create one and
> make the distro search/find/mount it.
> 
> The above scheme could IMHO be recommended by gta04-init and not
> by QtMoko since it is a third stage bootloader.
> 
> Just my 3ct,
> Nikolaus
> 
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