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2013-01-02
, 08:01
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Community Council |
Posts: 4,920 |
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@ Southerrn Finland
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#52
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Originally Posted by Akkumaru
Yes, by Nemo kernel I mean the Nemo/Mer core kernel which itself is update (but not compatible) to the Nokia "PR1.3 vanilla kernel" kernel_2.6.32-20121301+0m8
By nemo kernel you mean the harmattan update kernel right? Isn't it still incomplete? I guess it should be complete for stability reasons and for 'new people' to use.
The Nemo kernel I am using is "mer-n9-2.6.32-20121301" kernel which is a bit dated. (but of a lot newer than the Nokia PR1.3 kernel...)
I tried the latest Nemo kernel on github, the version 3.5.3 but that did not compile cleanly so I did not invest that much effort on it.
Actually as this is just the 1st stage loader kernel, which launches the actual "use-kernel" it does much matter if it is older or newer... the important thing is just that it can mount the needed devices and execute the next stage loader (which does not work correctly on Nokia kernels).
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2013-01-02
, 08:08
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Community Council |
Posts: 4,920 |
Thanked: 12,867 times |
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@ Southerrn Finland
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#53
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Originally Posted by Sazpaimon
Actually now that I had time to think about this I guess it is intentional that Nokia kernels do not work correctly with kexec().
There have been some semi-successful efforts in the past from Android users on getting a Kexec module running. Theoretically, if we can compile this module for the Harmattan kernel, we could possiby boot any kernel with any arbitrary command line arguments from the default Harmattan kernel at the preinit stage. That way, no flashing would be required. I'll try looking into it.
See, if it was possible (or easy
) to write a kernel module for the stock aegis-enabled kernel to load up next-stage kernel at will, that would be a serious security breach. That would enable user to load up anything she likes and as far as system knows the device would still stay in closed mode, with all R/W access to CAL enabled.
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2013-01-03
, 04:29
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Posts: 1,225 |
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Joined on Feb 2011
@ Quezon City, Philippines
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#54
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This sure is interesting.
juiceme, mind including an entry to export the eMMC over USB for repartitioning?
And on a side note, you may want to add ubi0:var (mounted to /boot) to /etc/fstab for convenience.
juiceme, mind including an entry to export the eMMC over USB for repartitioning?
Code:
modprobe g_file_storage stall=0 luns=2 ro=0 removable echo /dev/mmcblk0 > /sys/devices/platform/musb_hdrc/gadget/gadget-lun0/file
__________________
N9 PR 1.3 Open Mode + kernel-plus for Harmattan
@kenweknot, working on Glacier for Nemo.
N9 PR 1.3 Open Mode + kernel-plus for Harmattan
@kenweknot, working on Glacier for Nemo.
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2013-01-03
, 09:08
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Community Council |
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@ Southerrn Finland
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#55
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Actually, what I am now thinking of doing is instead of repartitioning mmcblk to use partition 4 as the Nemo partition, I am trying to install the Nemo filesystem on /home/nemo on partition 1 and chroot to that on startup. (as suggested by Sazpaimon)
That way there is no need to resize partitions, which makes it a lot friendly to install on a freshly flashed device.
I am trying to create the correct bootscripts for it now.
That way there is no need to resize partitions, which makes it a lot friendly to install on a freshly flashed device.
I am trying to create the correct bootscripts for it now.
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2013-01-19
, 07:03
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Posts: 1,225 |
Thanked: 1,905 times |
Joined on Feb 2011
@ Quezon City, Philippines
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#56
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juiceme, I found this, in case Harmattan really didn't like booting off kexec for some reason.
It's explained here, although it may need board-specific configuration.
It's explained here, although it may need board-specific configuration.
__________________
N9 PR 1.3 Open Mode + kernel-plus for Harmattan
@kenweknot, working on Glacier for Nemo.
N9 PR 1.3 Open Mode + kernel-plus for Harmattan
@kenweknot, working on Glacier for Nemo.
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2013-01-19
, 10:11
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Posts: 1,348 |
Thanked: 1,863 times |
Joined on Jan 2009
@ fr/35/rennes
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#57
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wouldnt this thread be documented on wiki ?
__________________
Current obsession:
https://purl.org/rzr/abandonware
Please help to list all maemo existing apps :
https://github.com/abandonware/aband...ment-578143760
https://wiki.maemo.org/Apps#
I am looking for " 4 inch TFT LCD display screen " for Nokia n950 HandSet
http://rzr.online.fr/q/lcd
Also, I need online storage to archive files :
http://db.tt/gn5Qffd6#
https://my.pcloud.com/#page=register...e=g8ikZmcfEJy#
Current obsession:
https://purl.org/rzr/abandonware
Please help to list all maemo existing apps :
https://github.com/abandonware/aband...ment-578143760
https://wiki.maemo.org/Apps#
I am looking for " 4 inch TFT LCD display screen " for Nokia n950 HandSet
http://rzr.online.fr/q/lcd
Also, I need online storage to archive files :
http://db.tt/gn5Qffd6#
https://my.pcloud.com/#page=register...e=g8ikZmcfEJy#
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2013-01-19
, 16:30
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Community Council |
Posts: 4,920 |
Thanked: 12,867 times |
Joined on May 2012
@ Southerrn Finland
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#58
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Thanks, that looks promising. I belive the problems I have with regular kexec() have something to do with the fact that HW state is somewhat "half-initialized" when switching to the 2nd level kernel.
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2013-02-04
, 11:41
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Community Council |
Posts: 4,920 |
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@ Southerrn Finland
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#59
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Ohh, it's been a while since I did something with this, and now just today I when I played with it again I suddenly realized what's been the problem all the time!
I feel a bit embarassed even, the solution is so simple
The problem I had, was that I used incorrect way of shutting down the watchdog when I did the kexec() to the 2nd level kernel! Now why did I ever make such a novice mistake
Well, I can happily report now that I can reliably boot at least Harmattan, Nemo and Nitdroid fully up from multiboot touch menu, without being anywhere near a computer
I feel a bit embarassed even, the solution is so simple
The problem I had, was that I used incorrect way of shutting down the watchdog when I did the kexec() to the 2nd level kernel! Now why did I ever make such a novice mistake
Well, I can happily report now that I can reliably boot at least Harmattan, Nemo and Nitdroid fully up from multiboot touch menu, without being anywhere near a computer
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2013-03-02
, 08:19
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Posts: 106 |
Thanked: 38 times |
Joined on Oct 2012
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#60
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Does this work with sillyboot v2?
Actually there is no need to add extra parameters to the kernel cmdline, it can be done the way I currently handle it;
I have separate preinit files for my kernels, like "/sbin/preinit_harmattan", "/sbin/preinit_nitdroid" and I just give that as the "init=xx" parameter when I boot off the selected kernel.
That way I can make all the selection&preparation stuff in the 1st-stage boot.