Re: "Can't open boot device" XO laptop firmware/OFW issue?

As it ages, the microSD card takes longer and longer to erase and write blocks. Eventually the time it takes to erase and write may exceed the few seconds between end of reflashing and the reboot power cycle. In those situations, use fs-update instead of the four button method, and leave the

Re: "Can't open boot device" XO laptop firmware/OFW issue?

On Sun, Feb 18, 2018 at 3:17 PM, James Cameron wrote: > Either there is an SD card in the external slot with unsupported partition > table, or there is a fault with the internal microSD card or slot. > I reflashed it a 2nd time and it came back to life (boots properly, for

Re: "Can't open boot device" XO laptop firmware/OFW issue?

Either there is an SD card in the external slot with unsupported partition table, or there is a fault with the internal microSD card or slot. -- James Cameron http://quozl.netrek.org/ ___ Devel mailing list Devel@lists.laptop.org

"Can't open boot device" XO laptop firmware/OFW issue?

Attached photo (in-lined below) should be an easy firmware/boot issue to solve I hope! Can anybody remind me what's need / what I need to try next? Clarif: this is an XO-1.5 (SKU100) with: - up-to-date RTC clock - up-to-date firmware (Q3C17) - up-to-date OS (OLPC OS 13.2.9) And yet I can no

RE: Sound issue with XO 1.75 related to OFW version

related to OFW version Quite normal, as Samuel said. Fix this by upgrading your operating system, or copy only the startup sound from a later operating system into the boot partition: sudo rsync rsync://updates.laptop.org/build-13.2.0_xo1.75-13/root/boot/jingle.wav /bootpart/boot

Sound issue with XO 1.75 related to OFW version

Hi all, I’ve got a sound issue on a XO 1.75 that seems to be related to firmware version. In Q4D34 The sound test on firmware works perfectly: both playing and recording. At startup, instead of the sweet XO sound I’ve got two short Beep. No activity can’t play sound: neither Tam-Tam

Re: Sound issue with XO 1.75 related to OFW version

It sounds like you are trying to upgrade firmware without upgrading your OS. As of Q4D26 the startup sound was moved to be stored on the internal storage instead of in the firmware. The two beeps therefore are expected if the OS does not have a copy of the startup sound on disk to use. Which OS

Re: Sound issue with XO 1.75 related to OFW version

Quite normal, as Samuel said. Fix this by upgrading your operating system, or copy only the startup sound from a later operating system into the boot partition: sudo rsync rsync://updates.laptop.org/build-13.2.0_xo1.75-13/root/boot/jingle.wav /bootpart/boot/ On Sun, Jul 21, 2013 at 03:38:27PM

Nandblaster and OFW

Hi All, Any plans on updating OFW's nandblaster to make better use of the updated naming scheme? Looking at #nb-secure-def and #nb-update-def for the 1.75 think that maybe become fs2.zip and fs1.zip for the 1.5 but what should fs.zd be? Just to prevent mixing up images between the arches maybe

Re: Nandblaster and OFW

No plans that I am aware of yet. In the meanwhile, you can easily use the underlying words directly on your USB drive: u:\fs2.zd nb-auto-channel $nb-tx \ XO-1.75 u:\fs1.zd nb-auto-channel $nb-tx \ XO-1.5 or for nb-secure: u:\fs2.zip u:\fs2.zd nb-auto-channel #nb-secure \ XO-1.75

Re: Recent XO-1 OFW had difficulty reading USB stick

I'm curious, why do you have security enabled? Because that's the way they were shipped to me from the factory (or from whoever I purchased the unit from). mikus ___ Devel mailing list Devel@lists.laptop.org

Recent XO-1 OFW had difficulty reading USB stick

DISCLAIMER: I am not asking for help; I'm just sharing my experiences. With q2f11.rom on one of my vintage-1997 XO-1s, I could __not__ install ('copy-nand') os12 (12.1.0) from an USB stick -- sooner or later OFW always stopped on a file read error. I finally flashed q2f05.rom to that XO-1

Re: Recent XO-1 OFW had difficulty reading USB stick

On Fri, Jun 01, 2012 at 09:58:09PM -0500, Mikus Grinbergs wrote: p.s. I also tried q2f11jb.rom - and nearly bricked the XO-1 (I do not have security deactivated). I'm curious, why do you have security enabled? -- James Cameron http://quozl.linux.org.au/

Re: Run OFW heat spreader test

On 24 January 2012 02:36, Martin Langhoff martin.langh...@gmail.com wrote: On Mon, Jan 23, 2012 at 7:54 AM, Richard A. Smith rich...@laptop.org wrote: Hmmm... Something else is the problem here.  You can't damage the processor via thermal overload because it has an automatic clock back off.  If

Re: Run OFW heat spreader test

On 01/23/2012 01:32 AM, Sridhar Dhanapalan wrote: On 23 January 2012 17:20, James Cameronqu...@laptop.org wrote: I thought you were doing this test to detect early units that may have a failed heat spreader, and you were doing it at the time of reflashing because that's when you had some

Run OFW heat spreader test

We are using a custom olpc.fth to present a boot menu so that users can easily flash their XOs. As a precaution, we run a lid switches test before the OS installation begins. Some of our XOs have older, less effective heat spreaders, and we would like to catch these before they get burnt-out by

Re: Run OFW heat spreader test

is confusing some teachers. Ideally we only want to run the heat spreader test part of it, so that the test is transparent and the user doesn't need to close the lid. Is this possible? Yes. I don' have a 1.5 with me at the moment but from looking at the OFW source I think you want ' .temp-rise '. ok

Re: Run OFW heat spreader test

On Mon, 2012-01-23 at 13:00 +1100, Sridhar Dhanapalan wrote: We are using a custom olpc.fth to present a boot menu so that users can easily flash their XOs. As a precaution, we run a lid switches test before the OS installation begins. Some of our XOs have older, less effective heat spreaders,

Re: Run OFW heat spreader test

the lid. Is this possible? Yes. I don' have a 1.5 with me at the moment but from looking at the OFW source I think you want ' .temp-rise '. ok .temp-rise That should run the thermal test and print a pass fail message. It also returns back a true or false on the stack

Re: Run OFW heat spreader test

On 01/23/2012 12:23 AM, Jerry Vonau wrote: Thanks, looking into that part of OFW code. .temp-rise returns a ? from the OK prompt. Ah... I see its part of the /switches node . Try this: ok select /switches ok .temp-rise -- Richard A. Smith rich...@laptop.org One Laptop per Child

Re: Run OFW heat spreader test

On 01/23/2012 12:17 AM, Jerry Vonau wrote: Is this possible? I thought with the physical layout of the motherboard, CPU towards the outside of the screen lid, that e-book mode would be the hardest on the XO in terms of heat dissipation. Given there in no active cooling, is the heat spreader

Re: Run OFW heat spreader test

On 01/23/2012 12:41 AM, Richard A. Smith wrote: On 01/23/2012 12:23 AM, Jerry Vonau wrote: Thanks, looking into that part of OFW code. .temp-rise returns a ? from the OK prompt. Ah... I see its part of the /switches node . Try this: oops.. forgot to get back out of that device node

Re: Run OFW heat spreader test

The heat spreader test is always run in e-book mode, because that's what the immediately preceeding test does. I imagine you would get different results if you didn't run it in e-book mode. I imagine that over a large sample, the results would be considerably different. For the user training

Re: Run OFW heat spreader test

On Mon, Jan 23, 2012 at 04:59:55PM +1100, Sridhar Dhanapalan wrote: How can we parse the output? Our attempts so far have been unreliable - Jerry has details. You should find it very reliable when used correctly. Don't parse the output. Instead, call temp-rise and use the value on the stack,

Re: Run OFW heat spreader test

On Mon, Jan 23, 2012 at 05:03:29PM +1100, Sridhar Dhanapalan wrote: On 23 January 2012 16:56, James Cameron qu...@laptop.org wrote: The heat spreader test is always run in e-book mode, because that's what the immediately preceeding test does. I imagine you would get different results if

Re: Run OFW heat spreader test

On 23 January 2012 17:20, James Cameron qu...@laptop.org wrote: I thought you were doing this test to detect early units that may have a failed heat spreader, and you were doing it at the time of reflashing because that's when you had some control. Yes, that's the primary reason. Our initial

Re: Run OFW heat spreader test

On Mon, Jan 23, 2012 at 05:32:05PM +1100, Sridhar Dhanapalan wrote: On 23 January 2012 17:20, James Cameron qu...@laptop.org wrote: I thought you were doing this test to detect early units that may have a failed heat spreader, and you were doing it at the time of reflashing because that's

Re: OFW unsecure kernel/initramfs load from zip file

On Wed, Sep 21, 2011 at 11:39 PM, Mitch Bradley w...@laptop.org wrote: Yeah, what James said. That said, in most cases the mount/unmount penalty is not bad, because in cases where it was, I did some caching to make it less onerous.  Cases in point include JFFS2, where mount is inherently

Re: OFW unsecure kernel/initramfs load from zip file

if its partner ramdisk/kernel can only be found in a zip file. Could you take a quick look, does this look solid? One lingering question is how OFW deals with mounting/unmounting. I know that some words (in some contexts?) cause the disk to be mounted, then the command to be executed, then the disk

Re: OFW unsecure kernel/initramfs load from zip file

, and the network, where I cache the DHCP result. If you have problems, tell me. My intention is that subsequent mounts should be fast enough. On 9/21/2011 11:39 AM, James Cameron wrote: On Wed, Sep 21, 2011 at 04:21:42PM +0100, Daniel Drake wrote: One lingering question is how OFW deals

OFW unsecure kernel/initramfs load from zip file

Hi, Right now, our signed images included in the boot partition: signed initramfs and kernel (runrd.zip runos.zip), used for secure boot unsigned initramfs and kernel (vmlinuz initrd.img), used in unsecure mode, but identical the the files in the signed tarballs I'd like to change the unsecure

OFW and aging hardware ?

, and its value matches osxx.img.md5] My bypass is to try the copy-nand again (sometimes switching USB sockets at the XO-1) - usually the retry completes. Is there something I can type in at the ok prompt that would make OFW more tolerant - so that my copy-nand would not stop in the middle

Re: XO-1 OFW occasionally has difficulty reading from my  permanent SD card [Devel Digest, Vol 61, Issue 38]

You might try patching OpenFirmware to not turn off the card between subsequent accesses.  To do this, assuming you are using Q2E45, add the following early in your olpc.fth file:     dev /sd     patch 2drop cb! card-power-off Is this also true for the XO-1.5 q3a62? or is an XO-1-only

Re: XO-1 OFW occasionally has difficulty reading from my? permanent SD card [Devel Digest, Vol 61, Issue 38]

On Sun, Mar 13, 2011 at 11:27:44PM -0700, Yioryos Asprobounitis wrote: You might try patching OpenFirmware to not turn off the card between subsequent accesses.? To do this, assuming you are using Q2E45, add the following early in your olpc.fth file: ??? dev /sd ??? patch 2drop

Re: 'menu' in OFW on an XO-1

On 03/13/2011 01:15 AM, Sridhar Dhanapalan wrote: With firmware Q2E45 on an XO-1 (yes, I finally got it unlocked!), I type 'menu' at the ok prompt. On an XO-1.5, I get a very useful list of icons that run different hardware tests. On this XO-1, I only get an array of square outlines. The

Re: 'menu' in OFW on an XO-1

On 3/13/2011 8:09 AM, Richard A. Smith wrote: On 03/13/2011 01:15 AM, Sridhar Dhanapalan wrote: With firmware Q2E45 on an XO-1 (yes, I finally got it unlocked!), I type 'menu' at the ok prompt. On an XO-1.5, I get a very useful list of icons that run different hardware tests. On this XO-1,

Re: 'menu' in OFW on an XO-1

On 03/13/2011 11:21 AM, Mitch Bradley wrote: Not expected but not surprising. The graphical hardware tests/diagnostics were developed for the 1.5. In XO 1.0 we only had the text based tests. I suspect that the 1.5 graphics stuff came along for the ride when we started building newer XO-1

XO-1 OFW occasionally has difficulty reading from my permanent SD card

It may well be the quality of the non-high-priced SD cards I use, but with q2e42 and later OFW versions, when several specific XO-1s are booted, OFW will occasionally (but not consistently) time out when trying to read the developer key from the SD card. My usual bypass is to unplug all external

Re: XO-1 OFW occasionally has difficulty reading from my permanent SD card

G'day Mikus, Fristly, use disable-security so that the developer key is not required to be present. Is there a good reason for not disabling the security system? However, if you are booting the laptop from the SD card this may merely move the problem from developer key recognition to booting.

'menu' in OFW on an XO-1

With firmware Q2E45 on an XO-1 (yes, I finally got it unlocked!), I type 'menu' at the ok prompt. On an XO-1.5, I get a very useful list of icons that run different hardware tests. On this XO-1, I only get an array of square outlines. The first (top-left) is blue. The others are black. Clicking

Re: 'menu' in OFW on an XO-1

got the same result with 2 x XO1 Q2E45 (dextrose439dg and 373pyg) have not used 'menu' before, always used 'help' to see options Tony With firmware Q2E45 on an XO-1 (yes, I finally got it unlocked!), I type 'menu' at the ok prompt. On an XO-1.5, I get a very useful list of icons that run

OFW and journal recovery warning

When booting the XO-1 (q2e45) or XO-1.5 (q3a61) from an ext3 formatted USB stick or external SDcard, the OFW reports that the ext3 journal needs recovery. However, stopping the boot process at this exact point (power button), rebooting from the internal flash/nand (running F14 builds

Re: OFW and journal recovery warning

while the feature flag is set. The flag is EXT3_FEATURE_INCOMPAT_RECOVER defined in linux/ext2_fs.h, value 0x0004, and is read from field s_feature_incompat in struct ext2_super_block. This is done in line 53 of ext2fs/sb.fth http://tracker.coreboot.org/trac/openfirmware/browser/ofw/fs/ext2fs/sb.fth

OFW u:/boot/bootfw.zip vs wp tag

[Training a team in mx so brief.] Just discovered that when security is disabled, OFW Q3A41 will probe int:/boot/bootfw.zip but not u:/boot/bootfw.zip . So OFW upgrades trigger automatically after an OS upgrade (where the newer bootfw.zip is on the internal disk), but not from USB

Re: OFW u:/boot/bootfw.zip vs wp tag

On 14 October 2010 16:36, Martin Langhoff martin.langh...@gmail.com wrote: [Training a team in mx so brief.] Just discovered that when security is disabled, OFW Q3A41 will probe int:/boot/bootfw.zip but not u:/boot/bootfw.zip . So OFW upgrades trigger automatically after an OS upgrade (where

Re: OFW u:/boot/bootfw.zip vs wp tag

On Thu, Oct 14, 2010 at 11:54 AM, Daniel Drake d...@laptop.org wrote: This is probably not the fault of OFW per say, but the fault of the olpc.fth file shipped in the OS distribution which is executed when security is disabled. Then it's 10.1.1 :-) m --  martin.langh...@gmail.com  mar

Re: OFW u:/boot/bootfw.zip vs wp tag

2010/10/14 Martin Langhoff martin.langh...@gmail.com [Training a team in mx so brief.] That's interesting. Can you say any more about that? Out of touch but still interested, Jameson ___ Devel mailing list Devel@lists.laptop.org

Re: OFW u:/boot/bootfw.zip vs wp tag

On Thu, Oct 14, 2010 at 5:49 PM, Jameson Quinn jameson.qu...@gmail.com wrote: 2010/10/14 Martin Langhoff martin.langh...@gmail.com [Training a team in mx so brief.] That's interesting. Can you say any more about that? Out of touch but still interested, A fantastic project in Nayarit, Mx --

Re: OFW u:/boot/bootfw.zip vs wp tag

2010/10/14 Martin Langhoff martin.langh...@gmail.com On Thu, Oct 14, 2010 at 5:49 PM, Jameson Quinn jameson.qu...@gmail.com wrote: 2010/10/14 Martin Langhoff martin.langh...@gmail.com [Training a team in mx so brief.] That's interesting. Can you say any more about that? Out of touch

Re: Announcing OFW Q3A58

if you want. Gonzalo On Mon, Sep 20, 2010 at 10:19 PM, Mitch Bradley w...@laptop.org wrote: http://wiki.laptop.org/go/OLPC_Firmware_q3a58 is a new OFW release for XO-1.5. It fixes problems with the audio CODEC protection settings and includes new EC firmware

Re: Announcing OFW Q3A58

On 09/21/2010 11:46 AM, Gonzalo Odiard wrote: Hi Mitch I applied it but doesn't restart when finish. The XO doesn't turn off if you press the power button. I needed to disconnect dc input and the battery. Firmware reflash disables the EC which means all buttons are inactive. So having to

Announcing OFW Q3A58

http://wiki.laptop.org/go/OLPC_Firmware_q3a58 is a new OFW release for XO-1.5. It fixes problems with the audio CODEC protection settings and includes new EC firmware. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo

Installing single file via signed OFW script

[ background: working with a local team in a process that needs to be quick. Booting linux would take way too long and throw our logistics out of whack ] Is there a straightforward way to have a signed forth script (local team has its own keys) that creates/installs a minimal file to a known

Re: Installing single file via signed OFW script

a minimal file to a known location? We just need to install a config file under /etc ... as far as i know, writing to the ext3 root partition from OFW is officially unsupported. the boot partition is ext2 precisely because ext3 can't be written reliably from OFW. if you can put the file

Re: Installing single file via signed OFW script

(local team has its own keys) that creates/installs a minimal file to a known location? We just need to install a config file under /etc ... as far as i know, writing to the ext3 root partition from OFW is officially unsupported. the boot partition is ext2 precisely because ext3

Re: Installing single file via signed OFW script

On Wed, Aug 25, 2010 at 8:38 PM, James Cameron qu...@laptop.org wrote: ok copy u:\ethni.pdf int:2,\versions\run\852\etc\test.pdf ext3 journal needs recovery Not writing to the ext2 filesystem because of unsupported extensions Flushbuf error ok Hi James! THANKS for trying this out. Yeah,

Announcing OFW Q3A48

http://wiki.laptop.org/go/OLPC_Firmware_q3a48 * Fixes a SD card timeout problem with ADATA 4GB and 8GB SD cards * User interface improvements in test /keyboard to help catch a stuck key problem seen in the factory * Resume-from-S3 now works with Windows XP

Triage #10118 - OFW bug with delegated leases

Current OFW has a bug in its delegated lease support http://dev.laptop.org/ticket/10118 which affects one of our headline features for the 10.x.y series. Not sure how high antitheft ranks for 10.2.0 (10.1.1?)... cheers, m -- martin.langh...@gmail.com mar...@laptop.org -- School Server

[PATCH] Fallback to /ofw on missing DMI in olpc-configure

/olpc-configure @@ -16,16 +16,20 @@ XO_VERSION=0 get_xo_version() { # This requires an OFW that runs setup-smbios at boot. - [ -e /sys/class/dmi/id/product_name ] || return - - name=$(/sys/class/dmi/id/product_name) - version=$(/sys/class/dmi/id/product_version

Re: OFW RPM packaging

On Wed, 2009-11-25 at 15:36 -0500, Richard A. Smith wrote: The person who build/releases the firmware (me or mitch) would modify the spec files we have for the firmware and then build the rpm. Editing the spec file is manual but I have some scripts that automate making and releasing the

Re: OFW RPM packaging

-off and reboot show-x Reflash returned, unexpectedly .security-failure ; [then] [ifndef] ?ofw-reflash \ Check for new firmware. : ?ofw-reflash ( -- ) ${DN}${PN}\bootfw.zip expand$ ['] (boot-read) catch if 2drop exit then img$ firmware-up-to-date? if exit then img$ do

OFW RPM packaging

Hi, How did RPM packaging of OpenFirmware work in previous OLPC OS release cycles? Who did it, and how? We need to restart this process for http://dev.laptop.org/ticket/9573 http://dev.laptop.org/ticket/9628 I'm happy to help out, but knowing what happened previously would be useful. Daniel

Re: OFW RPM packaging

to investigating it further due to time constraints. I think the KVM people use a OFW release as well so it might be worth looking at how they compile their version of it. I also wasn't sure what the signing requirements were of a XO OFW build would be. Peter On 11/25/09, Daniel Drake d...@laptop.org

Re: OFW RPM packaging

Hi, How did RPM packaging of OpenFirmware work in previous OLPC OS release cycles? Who did it, and how? The person who build/releases the firmware (me or mitch) would modify the spec files we have for the firmware and then build the rpm. Editing the spec file is manual but I have some

Re: OFW RPM packaging

it further due to time constraints. I think the KVM people use a OFW release as well so it might be worth looking at how they compile their version of it. I also wasn't sure what the signing requirements were of a XO OFW build would be. The .rom file is signed outside of any .rpm stuff. .rpms

Re: OFW Q3A15

Mitch, Does q3a15 automatically throttle the processor in case of overheating? If so, is there a way to check if it is working? cat /proc/cpuinfo maybe? Thanks! On Fri, Oct 30, 2009 at 6:52 AM, Mitch Bradley w...@laptop.org wrote: http://wiki.laptop.org/go/OLPC_Firmware_q3a15 Lots of good

Re: OFW Q3A15

If you think you might be having troubles with overheating on your XO-1.5, the heat spreader is suspect. After removal (to change the SD, check out the motherboard, etc) and sometimes even before then, the heat spreader doesn't make good contact with the VX855 and the CPU. I suggest bending

Re: OFW Q3A15

Emiliano Pastorino wrote: Mitch, Does q3a15 automatically throttle the processor in case of overheating? Yes If so, is there a way to check if it is working? cat /proc/cpuinfo maybe? Here is a test you can do with Open Firmware: ok show-temperature (cr many That command runs the CPU

Re: OFW Q3A15

There is a way to check the temperature under Linux. It involves the lmsensors package, but I don't know the exact details. Yes, that's what I've been using. The package is lm_sensors, if installed, you just have to type sensors and you get the temperature in ºC. I've already checked that

Re: OFW Q3A15

Rafael Ortiz On Tue, Nov 3, 2009 at 10:54 AM, Mitch Bradley w...@laptop.org wrote: Emiliano Pastorino wrote: Mitch, Does q3a15 automatically throttle the processor in case of overheating? Yes If so, is there a way to check if it is working? cat /proc/cpuinfo maybe? Here is a test

Re: OFW Q3A15

Emiliano Pastorino wrote: There is a way to check the temperature under Linux. It involves the lmsensors package, but I don't know the exact details. Yes, that's what I've been using. The package is lm_sensors, if installed, you just have to type sensors and you get the

OFW Q3A15

http://wiki.laptop.org/go/OLPC_Firmware_q3a15 Lots of good stuff. Please help me test it! My trac tickets are at http://dev.laptop.org/report/41 . If you click on the Action Needed column, the test in release tickets will collate together. Those tickets are ostensibly fixed in q3a15. It

OFW upgrade without a keyboard

Remove all power and wait is by far the easiest way to reset a keyboard, but ... If one really could not get the keyboard to work, but wanted to upgrade the firmware anyway, here is a recipe: a) Get a USB stick, ideally factory-formatted with a FAT filesystem, but ext2 will work too. b) Put

Brown-bag OFW for XO-1.5

scp dev.laptop.org:~wmb/q3a11c.rom Consider this a pre-release of q3a12 ... Highlights: a) The Via Thermal Monitor is on. That prevents overheating. b) fs-update has several improvements: 1) Now handles large chunk sizes correctly 2) dir int:\ immediately after fs-update now works 3) Better

Re: OFW access from linux

to it at all, if the hang is caused by an oops, we can have a patch that traps calls to die() and bug() and jumps to OFW. This is what KGDB does, so there is some precedent. We could also have some magic in the EC to look for a sequence of keys that signals a low-level handler to kick into OFW

Re: OFW access from linux

On Thu, Sep 17, 2009 at 05:10:06AM -0400, Paul Fox wrote: but the issue is that there's no such key on the XO keyboard: SysRq/PrtSc doesn't exist. Key to the left of frame and above erase is still free isn't it? ;-) The legend matches my idea of switching to OFW. Another system hiding

Re: OFW access from linux

On Wed, Sep 16, 2009 at 11:18:17AM +0800, Mitch Bradley wrote: It is gratifying that so many people like the idea of being able to zap back into OFW from Linux - especially since I got such intense pushback when I first proposed leaving OFW resident on OLPC. Why? Security reasons? Martin

Re: OFW access from linux

Martin Dengler wrote: On Wed, Sep 16, 2009 at 11:18:17AM +0800, Mitch Bradley wrote: It is gratifying that so many people like the idea of being able to zap back into OFW from Linux - especially since I got such intense pushback when I first proposed leaving OFW resident on OLPC

Re: OFW access from linux

Another objection, now that I think about it, is that some people didn't like the way I made OFW coexist within Linux's virtual address space by injecting a page directory entry at the top of one of Linux's page tables. Admittedly, the solution that I chose is rather brute force

Re: OFW access from linux - kgdb

scarce serial ports. so OFW is a win, for my current uses. In theory we could make one OLPC kernel debuggable by another OLPC, just using the WiFi interfaces and a simple matter of software. kgdb should be able to use an ethernet, if the Ethernet driver implements the NETPOLL interface. I think

Re: OFW access from linux

(returning to?) the resident OFW command line interface.  when invoked, you can do all the usual OFW peeking and poking, and even play pong.  (and, since linux is still active, you can royally trash your system if you're not careful.) there's no SysRq key on the XO keyboard, so you'll need to use

OFW access from linux

on the XO, openfirmware stays resident when linux runs, and is accessible via an API specified in arch/x86/kernel/ofw.c. i've just pushed a commit to our 2.6.30 kernel branch that adds a sysrq hook (SysRq-y) for starting (returning to?) the resident OFW command line interface. when invoked, you

Re: OFW access from linux

to?) the resident OFW command line interface. This is one of the coolest hacks I've heard about in a while. Nice work (and to the giants upon whose shoulders etc. etc.)! paul Martin pgpNPnN48GYYa.pgp Description: PGP signature ___ Devel mailing list

Re: OFW access from linux

) for starting (returning to?) the resident OFW command line interface. This is one of the coolest hacks I've heard about in a while. Nice work (and to the giants upon whose shoulders etc. etc.)! to be honest, i knew it could be done because i had heard rumor that blaketh had done it earlier

Re: OFW access from linux

into OFW or its predecessor. (L1 was the top left key in the keypad to the left of the main keyboard.) We shipped it that way for decades without trouble. There are some pretty obscure keys on the XO keyboard -- howabout something like holding down the leftmost and rightmost gradually increasing

Re: OFW access from linux

that order, with no intervening keys or key-ups) got you into OFW or its predecessor. (L1 was the top left key in the keypad to the left of the main keyboard.) We shipped it that way for decades without trouble. There are some pretty obscure keys on the XO keyboard -- howabout something like

Re: OFW access from linux

, this time. custom key combinations would require more extensive changes to the input drivers than i was willing to take on last night. On Sun workstations, the L1-A key combination (pressed in exactly that order, with no intervening keys or key-ups) got you into OFW or its predecessor

Re: OFW access from linux

It is gratifying that so many people like the idea of being able to zap back into OFW from Linux - especially since I got such intense pushback when I first proposed leaving OFW resident on OLPC. ___ Devel mailing list Devel@lists.laptop.org http

Announcing OFW Q2E41

http://wiki.laptop.org/go/OLPC_Firmware_q2e41 This release is the culmination of a series of mini-releases that change the boot order when the system is in the factory, so that the manufacturing test operating system image will boot even if an SD card is inserted during production steps.

Re: Any lease validation code in OFW?

2009/3/29 Martin Langhoff martin.langh...@gmail.com: Hi Mitch, devel@, while I finish other work, in the back of my mind I am drafting my workplan for finishing off the 'delegated leases' stuff. One of my assumptions so far is that OFW does not care at all about the leases. All the lease

Any lease validation code in OFW?

Hi Mitch, devel@, while I finish other work, in the back of my mind I am drafting my workplan for finishing off the 'delegated leases' stuff. One of my assumptions so far is that OFW does not care at all about the leases. All the lease checks and USB/Wifi retrieval is all happening in the Linux

How do I clear an OFW flag?

Trying to test the fix for #8976 , I am stumped at what I thought would be a trivial step - clearing the AK flag. My laptop has ak and dk flags set, and I have both leases handy in case something goes wrong. The NAND has a good signed image. The only hint I was able to find was in a script in

Soliciting OFW testers

I've just released OFW Q2E24 ( http://wiki.laptop.org/go/OLPC_Firmware_q2e24 ) which is a test candidate for the upcoming 8.2.1 release. There are a couple of things that could use some testing, so I'm soliciting help. Firstly, if you have 2 or more XOs and are willing to overwrite the NAND

Re: Soliciting OFW testers

Mitch Bradley wrote: Secondly, if you have a USB CD-ROM drive, you could help me by testing it with OFW. To do so: Will an external DVD-RW drive work or only a CD? a) Remove all other USB storage devices (FLASH keys and the like) from the XO b) Put a CD-ROM that has an ISO-9660

Re: Soliciting OFW testers

Chris Marshall wrote: Mitch Bradley wrote: Secondly, if you have a USB CD-ROM drive, you could help me by testing it with OFW. To do so: Will an external DVD-RW drive work or only a CD? I'd like to find that out too. ___ Devel mailing list

Re: [Testing] Soliciting OFW testers

testing-boun...@lists.laptop.org wrote on 12/12/2008 12:03:44 PM: Chris Marshall wrote: Mitch Bradley wrote: Secondly, if you have a USB CD-ROM drive, you could help me by testing it with OFW. To do so: Will an external DVD-RW drive work or only a CD? I'd like to find

Re: [Testing] Soliciting OFW testers

Michail Bletsas wrote: Yes, external DVD-RW and DVD drives work with DVD and DVD-R media. Any chance of building a DVD-decoder into OFW? ;-) Hmm, I probably have one of those lying around somewhere ... Oh, here's one in my toolbox, next to the rusty fishhooks, the X-Ray glasses

OFW trackpad test woes

http://dev.laptop.org/~wmb/q2e19a.rom is a test build that purports to fix http://dev.laptop.org/ticket/8451#comment:7 (This Time For Sure !) If anybody is just itching to test a bleeding edge OFW, this is your chance. (Okay, so it's not really all that bleeding. It's not too different from

Re: OFW trackpad test woes

On 5 Oct 2008, at 10:48, Mitch Bradley wrote: http://dev.laptop.org/~wmb/q2e19a.rom is a test build that purports to fix http://dev.laptop.org/ticket/8451#comment:7 (This Time For Sure !) If anybody is just itching to test a bleeding edge OFW, this is your chance. (Okay, so it's not really

Re: OFW trackpad test woes

into the mouse test phase as soon as I touched the right hand section of the touchpad it left the mouse test and went to the next test. 2.) When I ran test mouse from the ofw prompt the screen was left black until I hit enter a few times. 3.) Another problem is when you run 'test mouse' from the ofw

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