Re: can't boot XO-1 from USB, doc needed
On Mon, Nov 7, 2011 at 6:12 PM, S Page wrote: > I wanted to try 11.3.0 but my XO-1 prints scary JFFS2 warnings before > "Boot has failed, sleeping forever.". (After four years, no more > olpc-update for me.) > > I'd like to boot off USB and look at my XO-1's NAND filesystem. But > the wiki instructions for booting off USB[1] were out of date. I've > updated them to de-emphasize the .ext3.img that's no longer built, but > can't find instructions for what's in current builds. There have been > mail threads and bug reports on the subject, recently "11.2.0 XO-1 > boot from USB or SD doesn't work for me"[2] which wound up providing > workarounds [3] without explaining how to get started. I think there > was a more recent thread but I can't find it. Sorry that this boot path is a bit neglected. I've made some changes for 12.1.0 which should make it a little easier and solve one of the core issues behind this, but it is still a bit of a nasty process for USB since it requires you to arrange the files in a special way (or you may wish to take another approach like the one you found in this thread, which is perhaps a little less horrifying). I posted info here: http://dev.laptop.org/ticket/11233#comment:8 Thanks, Daniel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
On Fri, Nov 11, 2011 at 02:05:10PM -0800, S Page wrote: > I wrote: > >> I'd like to boot off USB and look at my XO-1's NAND filesystem. But > >> the wiki instructions for booting off USB[1] were out of date. > > I still can't boot 11.3.0 from USB following > http://wiki.laptop.org/go/OS_images_for_USB_disks#Booting. Honestly, I'm not surprised, I haven't heard of anyone having easy success with this method, and I don't think it was part of the 11.3.0 release testing. However, your finding below might suggest that the problem is USB drive related. > James Cameron helpfully replied: > > I would use http://wiki.laptop.org/go/Tiny_Core_Linux to boot from USB > > and investigate the cause: > > That worked using boot u:\boot\olpc.fth , very nice! It should have worked without using that command. That it doesn't suggests you have a USB drive that does not work correctly with OpenFirmware, or a USB host fault. You might explore this by upgrading to Q2F05 and testing boot from USB without typing any commands. Be sure to insert the USB drive before turning on the laptop. You might also try a different USB drive. > at which point after about 15 seconds I get > JFFS2 error: (1053) jffs2_build_inode_pass1: child dir "root" (ino > #340448) of dir ino #340447 appears to be a hard link Well, that's consistent with your mail of 7th November, which contained the same error. It suggests filesystem corruption in the JFFS2 on NAND Flash. > Yet the NAND flash contents look pretty good, /home/olpc, /versions, > etc. `find -inum 340xxx` fails to find those inode numbers, but > prints > find: ./versions/run/af5b6blahblah: Input/output error > `ls` reports this directory doesn't exist. Unfortunately there's no > fsck.jffs2 , so this seems irreparable. I hope it's just hardware > rather than the "steps to free up disk space" that I vaguely recall > running before I last shut down. The way to find out is to repeat those steps after reinstall. If they break it again, you've learned that the steps might need refinement. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
I wrote: >> I'd like to boot off USB and look at my XO-1's NAND filesystem. But >> the wiki instructions for booting off USB[1] were out of date. I still can't boot 11.3.0 from USB following http://wiki.laptop.org/go/OS_images_for_USB_disks#Booting. James Cameron helpfully replied: > I would use http://wiki.laptop.org/go/Tiny_Core_Linux to boot from USB > and investigate the cause: That worked using boot u:\boot\olpc.fth , very nice! I tweaked your F.S. test steps to: # cat /proc/mtd # mkdir /mnt/MY_XO_FS # mount -t jffs2 mtd0 /mnt/MY_XO_FS (I updated the wiki page with all this) at which point after about 15 seconds I get JFFS2 error: (1053) jffs2_build_inode_pass1: child dir "root" (ino #340448) of dir ino #340447 appears to be a hard link Yet the NAND flash contents look pretty good, /home/olpc, /versions, etc. `find -inum 340xxx` fails to find those inode numbers, but prints find: ./versions/run/af5b6blahblah: Input/output error `ls` reports this directory doesn't exist. Unfortunately there's no fsck.jffs2 , so this seems irreparable. I hope it's just hardware rather than the "steps to free up disk space" that I vaguely recall running before I last shut down. > I would also make a backup using the xo-backup tool included on the Tiny > Core Linux build modified for XO-1. That worked, nice! % gtar -v --create --directory /mnt/MY_XO_FS/home/olpc \ --file /mnt/sda1/xo_home_olpc.tar . Thanks again! Now I'll install *without* using olpc-update for the first time in years. -- =S Page ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
RE: [Testing] can't boot XO-1 from USB, doc needed
My Motto...When in doubt... Reflash!;-DCaryl > Date: Tue, 8 Nov 2011 14:52:20 +1100 > From: qu...@laptop.org > To: skierp...@gmail.com > CC: test...@lists.laptop.org; devel@lists.laptop.org > Subject: Re: [Testing] can't boot XO-1 from USB, doc needed > > I would reinstall at this point, relying on my backups. > > -- > James Cameron > http://quozl.linux.org.au/ > ___ > Testing mailing list > test...@lists.laptop.org > http://lists.laptop.org/listinfo/testing ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
I would reinstall at this point, relying on my backups. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
Thanks for the suggestions! On Mon, Nov 7, 2011 at 16:23, James Cameron wrote: > On Mon, Nov 07, 2011 at 04:12:50PM -0800, S Page wrote: >> I wanted to try 11.3.0 but my XO-1 prints scary JFFS2 warnings before >> "Boot has failed, sleeping forever." > > That sounds fixable. Can you describe how you got to this point? I turned on XO-1 that I had upgraded to 11.2.0 earlier, it failed to boot. I might have run commands to delete stuff to free up disk space. I transcribed some errors are below. I installed the q2f04rd firmware from USB and it didn't help. I'll try the Tiny Core Linux, and dig up an SD card for booting 11.3.0. >> * Can I jump through hoops to mount the JFFS2 .img and transfer its >> contents (cpio?) to an ext3 partition? > > Yes, except it isn't an .img. % file /opt/download/os883.img /opt/download/os883.img: Linux jffs2 filesystem data little endian and Google produces complicated ways to mount it. > Yes, the .tar.lzma does not have boot files in /boot, you need to create > the symlink to the versioned boot directory. % sudo ln -s versions/pristine/883/boot boot and now ok boot u:\boot\vmlinuz Kernel startup progresses for a bit, but then prints VFS: Cannot open root device "(null)" or unknown-block(0,0) Please append a correct "root=" boot option: here are the available partitions: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) so presumably I have to make these mystical olpc.fth or boot command changes or GRUB modifications. Any documentation for that? [Digression: I know people have done this, please folks do the right thing and write something on the wiki.] == Rough copy of the errors I get booting from NAND flash == Hello children of the world! (pause) JFFS2 error: (136) jffs2_build_inode_pass1: child dir "root" (ino #340448) of dir ino #340447 appears to be a hard link JFFS2 notice: (136) blah blah xattr built dracut: Mounted root filesystem /dev/mtdblock0 JFFS2 warning: (146) jffs2_get_inode_nodes: Eep. No valid nodes for ino #340448 [ JFFS2 warning: (158) jffs2_do_read_inode_internal: no data nodes found for ino #340448 iget() failed for ino #340448 ls: /sysroot/versions/run/af5b6xxx: Input/output error purging old versions, boot may be slightly delayed... JFFS error again mkdir: cannot create directory' /sysroot/versions/run/af5b6xxx': Input/output error Again thanks. -- =S Page ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
Oh, and I would not be terribly interested in a permanent "boot and use OLPC OS from USB" because of the data corruption risk of USB drives being pulled out during operation. SD, yes. USB, no, too fragile. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
On Mon, Nov 07, 2011 at 04:12:50PM -0800, S Page wrote: > I wanted to try 11.3.0 but my XO-1 prints scary JFFS2 warnings before > "Boot has failed, sleeping forever.". (After four years, no more > olpc-update for me.) That sounds fixable. Can you describe how you got to this point? > I'd like to boot off USB and look at my XO-1's NAND filesystem. But > the wiki instructions for booting off USB[1] were out of date. I would use http://wiki.laptop.org/go/Tiny_Core_Linux to boot from USB and investigate the cause: # cat /proc/mtd0 # mount -t jffs2 mtd0 /mnt I would also make a backup using the xo-backup tool included on the Tiny Core Linux build modified for XO-1. This is documented for XO-1.5 at http://wiki.laptop.org/go/How_to_backup_your_XO#XO-1.5 but ought to work in a similar fashion for XO-1 ... if you mount the jffs2 filesystem instead. > * Can I jump through hoops to mount the JFFS2 .img and transfer its > contents (cpio?) to an ext3 partition? Yes, except it isn't an .img. > * I created an ext3 partition named OLPCRoot and used > sudo tar --lzma --numeric-owner -xvf /path/to/os883.tree.tar.lzma > to extract the build's files. But the tree doesn't have /boot , > initrd, or actrd?! Yes, the .tar.lzma does not have boot files in /boot, you need to create the symlink to the versioned boot directory. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: can't boot XO-1 from USB, doc needed
I'm running a Fedora 15 test image on an external USB sata drive. I formatted the drive as ext3 and copied the filesystem to it, and manually boot from ofc: boot u:\boot\olpc.fth (or something like that) You might have to tweak the olpc.fth file on your usb disk to boot properly off it, and don't forget to update your /etc/fstab to use the new drive devices. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
can't boot XO-1 from USB, doc needed
I wanted to try 11.3.0 but my XO-1 prints scary JFFS2 warnings before "Boot has failed, sleeping forever.". (After four years, no more olpc-update for me.) I'd like to boot off USB and look at my XO-1's NAND filesystem. But the wiki instructions for booting off USB[1] were out of date. I've updated them to de-emphasize the .ext3.img that's no longer built, but can't find instructions for what's in current builds. There have been mail threads and bug reports on the subject, recently "11.2.0 XO-1 boot from USB or SD doesn't work for me"[2] which wound up providing workarounds [3] without explaining how to get started. I think there was a more recent thread but I can't find it. * Can I jump through hoops to mount the JFFS2 .img and transfer its contents (cpio?) to an ext3 partition? * I created an ext3 partition named OLPCRoot and used sudo tar --lzma --numeric-owner -xvf /path/to/os883.tree.tar.lzma to extract the build's files. But the tree doesn't have /boot , initrd, or actrd?! That's probably why trying to boot from it gives ok boot u: Boot device: /usb/disk: Arguments: The attempt to load a boot image failed. These files are deep within u:\versions\run\883\boot , should I be providing special arguments or creating symlinks? Also, people have written separate instructions for booting from SD[4], but wouldn't the procedure be the same? I promise to write up any explanations provided... [1] http://wiki.laptop.org/go/OS_images_for_USB_disks [2] http://lists.laptop.org/pipermail/devel/2011-August/033009.html [3] http://dev.laptop.org/ticket/11233 [4] http://wiki.laptop.org/go/Installing_to_SD_Card Thanks, -- =S Page ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
