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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   Risk in using multiboot (https://talk.maemo.org/showthread.php?t=66317)

pycage 2010-11-28 17:03
Re: Risk in using multiboot
 
Quote:
Originally Posted by Mentalist Traceur (Post 885082)
Last I checked, the N900's NAND doesn't have wear level. The eMMC (where MyDocs, etc, goes) does, but I've read people more knowledgeable than myself on here say that the NAND doesn't wear-level.
The wear-levelling on the N900's NAND is handled by the JFFS2 filesystem AFAIK.

pang 2010-12-04 09:35
Re: Risk in using multiboot
 
Quote:
Originally Posted by pycage (Post 885085)
The wear-levelling on the N900's NAND is handled by the JFFS2 filesystem AFAIK.
Mind elaborating more on that?

RobbieThe1st 2010-12-04 12:08
Re: Risk in using multiboot
 
Actually, on the N900, its Ubifs, not Jffs2. All bad blocks and such are handled by the OS at the filesystem level, as opposed to being done in hardware on a SD card.

However, the 2mb Kernel partition does -not- have any real filesystem, and thus, no wear-leveling.

pang 2010-12-06 15:03
Re: Risk in using multiboot
 
Quote:
Originally Posted by RobbieThe1st (Post 889055)
Actually, on the N900, its Ubifs, not Jffs2. All bad blocks and such are handled by the OS at the filesystem level, as opposed to being done in hardware on a SD card.

However, the 2mb Kernel partition does -not- have any real filesystem, and thus, no wear-leveling.
So that means in the end the way Multiboot handles the kernel image doesn't wear-level anything in the n900?

wmarone 2010-12-06 17:29
Re: Risk in using multiboot
 
Quote:
Originally Posted by pang (Post 890656)
So that means in the end the way Multiboot handles the kernel image doesn't wear-level anything in the n900?
No, but you'll have to erase/write it something on the order of 10000+ times (on average) to kill it.

pang 2010-12-09 06:13
Re: Risk in using multiboot
 
Quote:
Originally Posted by wmarone (Post 890762)
No, but you'll have to erase/write it something on the order of 10000+ times (on average) to kill it.
Oh ok.. maybe i will just wait for someone to integrate Uboot with NITDroid then only i will use NITDroid..

mailcomx 2014-01-07 13:12
Re: Risk in using multiboot
 
U-boot with nitdroid 2.3.4, Is it possible?

peterleinchen 2014-01-07 21:39
Re: Risk in using multiboot
 
Yes si oui ja da ano ...


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