Re: multiple MTD partitions

2007-12-16 Thread Artem Bityutskiy
ext Walter Bender wrote: but unfortunately have not got feedback, and I suspect one of the reasons is that it is too difficult to boot UBIFS on XO. I think you would be well served by making it clearer to people what the goals are of UBIFS relative to existing systems, such as JFFS2, on the

Re: multiple MTD partitions

2007-12-16 Thread Artem Bityutskiy
David Woodhouse wrote: http://git.infradead.org/?p=openfirmware.git;a=commitdiff;h=a0b5a7b0c OpenFirmware boots from the partition named 'boot' in the RedBoot partition table. The rest are yours to play with as you see fit. Thanks David, I'll take a look at this. -- Best Regards, Artem

DONT USE 1432 Re: New joyride build 1432

2007-12-16 Thread Pascal Scheffers
1432 won't boot X on my B4. Lots of kernel modules not found at boot time. On 16 dec 2007, at 04:15, Build Announcer Script wrote: http://xs-dev.laptop.org/~cscott/olpc/streams/joyride/build1432/ -cpio.i386 0:2.6-28.fc7 -dmraid.i386 0:1.0.0.rc14-4.fc7 -findutils.i386 1:4.2.29-2

Re: New joyride build 1432

2007-12-16 Thread Pascal Scheffers
I get lots of: modprobe: FATAL Could not load /bib/modules/2.6.22-2007...5831/ modules.dep: No such file or directory After a forced shutdown, it seems to have caused jffs2 corruption as boot stops at Starting HAL daemon with JFFS2 notice (1340): wrong data CRC in data node at

Re: New joyride build 1432

2007-12-16 Thread Tomeu Vizoso
On Sun, 2007-12-16 at 15:01 +0100, Pascal Scheffers wrote: I get lots of: modprobe: FATAL Could not load /bib/modules/2.6.22-2007...5831/ modules.dep: No such file or directory After a forced shutdown, it seems to have caused jffs2 corruption as boot stops at Starting HAL daemon with

Re: Project Hosting request: LiveBackup_XO-LiveCD

2007-12-16 Thread Mike C. Fletcher
[EMAIL PROTECTED] wrote: 1. Project name : LiveBackup_XO-LiveCD 2. Existing website, if any : 3. One-line description : Live-CD build based on the LiveBackup Framework 4. Longer description : Live-CD's are created from official OLPC builds.

Re: multiple MTD partitions

2007-12-16 Thread Bernardo Innocenti
Artem Bityutskiy wrote: but unfortunately have not got feedback, and I suspect one of the reasons is that it is too difficult to boot UBIFS on XO. It would be great to have a demo OS image using UBIFS. I can't help for the partitioning thing, but if you need help with the process of

Re: DONT USE 1432 Re: New joyride build 1432

2007-12-16 Thread Bernardo Innocenti
Bernardo Innocenti wrote: Pascal Scheffers wrote: 1432 won't boot X on my B4. Lots of kernel modules not found at boot time. Hmm... I think it's my fault :-( I asked dilinger to remove the dependency on mkinitrd from the kernel because our olpcrd thing does not even use it, and it was

Re: multiple MTD partitions

2007-12-16 Thread John Watlington
On Dec 16, 2007, at 6:08 AM, Artem Bityutskiy wrote: Vs. goal 2: UBIFS write speed is about 70MiB/second, because of the write-back support. IOW, UBIFS is similar to traditional FSes like ext2, which have internal buffers and make writes fast. To compare, JFFS2 write speed on XO is

Re: multiple MTD partitions

2007-12-16 Thread Ivan Krstić
On Dec 16, 2007, at 11:40 PM, John Watlington wrote: I'm curious how you measured this, as the underlying hardware only supports a max. transfer rate of around 20 MiB/s... As Artem mentioned, UBIFS employs a write-back cache, meaning writes aren't flushed to the underlying medium

Re: multiple MTD partitions

2007-12-16 Thread Joel Stanley
On Dec 17, 2007 4:46 PM, Ivan Krstić [EMAIL PROTECTED] wrote: This makes a hell of a lot of sense. In a synchronous filesystem like JFFS2, constant and repeated writes to the same single page will keep pummeling the underlying flash needlessly It makes a hello of a lot of sense in the scenario

New update.1 build 658

2007-12-16 Thread Build Announcer Script
http://xs-dev.laptop.org/~cscott/olpc/streams/update.1/build658/ -AcousticMeasure-6.xo +AcousticMeasure-7.xo -Analyze-4.xo +Analyze-5.xo -Chat-28.xo +Chat-31.xo -Journal-72.xo +Journal-79.xo -Web-76.xo +Web-79.xo +compat-libstdc++-33.i386 0:3.2.3-61 -libX11.i386 0:1.1.3-1.git20070822.olpc2

Re: Update.1 builds

2007-12-16 Thread Bert Freudenberg
On Dec 15, 2007, at 18:26 , Marco Pesenti Gritti wrote: The location of the Update.1 builds has changed: http://pilgrim.laptop.org/~pilgrim/olpc/streams/update.1/ I'm not sure if it's the final location but it would be to update the Changelog to point to it.

Re: multiple MTD partitions

2007-12-16 Thread Ivan Krstić
On Dec 17, 2007, at 1:51 AM, Joel Stanley wrote: JFFS2 has done an excellent job, at least on my xos, of keeping filesystem integrity after sudden power-offs. Write-back caching does not adversely affect filesystem *integrity*. It makes a tradeoff by reducing flash write/erase frequency and

Re: LOLPC

2007-12-16 Thread Ivan Krstić
On Dec 17, 2007, at 1:53 AM, Asheesh Laroia wrote: Your excellent photo builds upon a fine tradition Please do expand http://wiki.laptop.org/go/LOLPC accordingly. ;) -- Ivan Krstić [EMAIL PROTECTED] | http://radian.org ___ Devel mailing list

Re: multiple MTD partitions

2007-12-16 Thread Ivan Krstić
On Dec 17, 2007, at 2:44 AM, Joel Stanley wrote: That would be cool. But I think there would as many, maybe more, cases of batteries being removed, power cords yanked, and generators turning off causing shutdowns than low-battery issues. Batteries getting removed with no AC should not be a