next »

[teapot]

Quote
If the latter can you reinstate backlight and network manually or should use the set-powersave-mode off ?
Yes.

Yes which one?
or yes both?

Backlight level can be set manually using brightness buttons. Radio remains off until set-powersave-mode off is called (Network Manager should pick it up after that).

[mavrothal]

Backlight level can be set manually using brightness buttons. Radio remains off until set-powersave-mode off is called (Network Manager should pick it up after that).

Got it! and works fine! You know what would be nice though... invoking the script once goes to save mode, invoking it the second goes to off and so on. So with one launcher button you do both! Now if you also make the button change accordingly would be perfect...

About the extreme mode, I did not tried it because I hated it in Sugar. Having the screen dim after 30 seconds is very annoying. Make it 3-5 minutes and I'll try it

[mavrothal]

You know what would be nice though... invoking the script once goes to save mode, invoking it the second goes to off and so on.

Here is my answer to my suggestion
generate the file in /usr/bin, named power-save or modify accordingly teapot's original set-powersave-mode file in the same directory as follow

Code:

#!/bin/bash
# modification of teapot's set-powersave-mode script for on and off with the same script
if [ -e .p_s_test ]
    then
    MODE=false
rm .p_s_test
else
    MODE=true
touch .p_s_test
fi
dbus-send --system --print-reply --dest="org.freedesktop.Hal" \
    /org/freedesktop/Hal/devices/computer \
    org.freedesktop.Hal.Device.SystemPowerManagement.SetPowerSave \
    "boolean:${MODE}" > /dev/null 2>&1

then make it executable by

Code:

chmod 755 power-save

Finally insert a launcher item in the drop-down menu that will execute the command

Code:

power-save

First time you click it goes to power save second time it exits and so on.
If i could also find a nice picture for it....

[hoogee]

Question:

I did the whole installation process with 711 installed (8.1). Now, I want to upgrade my Sugar to the new release 767 (8.2). Can I do so without damaging the xubuntu install? Do I need to re-copy those few directories from the sugar side again (/lib/firmware, /security/, etc...)

Will the upgrade break anything?

[mavrothal]

Question:

I did the whole installation process with 711 installed (8.1). Now, I want to upgrade my Sugar to the new release 767 (8.2). Can I do so without damaging the xubuntu install? Do I need to re-copy those few directories from the sugar side again (/lib/firmware, /security/, etc...)

Will the upgrade break anything?

As the instructions say, if you have stuff that you want to keep backup both your sugar http://wiki.laptop.org/go/How_to_backup_your_XO and ubuntu http://olpcnews.com/forum/index.php?topic=3062.msg24431#msg24431
Then remove your SD card restart and update any way you want. After you update reboot and when you are happy with 8.2 insert your card and update the kernel etc as described here http://olpcnews.com/forum/index.php?topic=2240.msg25873#msg25873
None of the above is mandatory and the update and ubuntu should work without any of the above steps  but...
Also is unclear if the suspend process will work with older kernels in Ubuntu 

[Rao]

“After further review” (see discussion in this thread from this point on http://olpcnews.com/forum/index.php?topic=3063.msg25017#msg25017)  I thought that scripting the installation for a USB stick may be feasible.

After updating my XO to build 767, I reinstalled Ubuntu following the
InstallTOusb.txt  procedure on a USB drive.  The installation and booting went well, as far as I can tell (by echoing $? at each step of the procedure).
However, after I logged in as olpc/olpcolpc the screen froze on me!  After a while the screen saver kicked in and  hitting the return key returned to the frozen screen.
Can somebody please help?
Rao

[mavrothal]

However, after I logged in as olpc/olpcolpc the screen froze on me!  After a while the screen saver kicked in and  hitting the return key returned to the frozen screen.

Why did you reinstalled Ubuntu? A kernel update would be sufficient.
Did you reinstalled from the original teapot's torrent or from a backup of your previous install?
How did you determined that is frozen? Try an external mouse to see if is just the mousepad acting up, because it looks like that programs and keyboard are woking. Reboot to see if is  just a glitch, and see if the text during boot gives any strange messages.

[teapot]

“After further review” (see discussion in this thread from this point on http://olpcnews.com/forum/index.php?topic=3063.msg25017#msg25017)  I thought that scripting the installation for a USB stick may be feasible.

After updating my XO to build 767, I reinstalled Ubuntu following the
InstallTOusb.txt  procedure on a USB drive.  The installation and booting went well, as far as I can tell (by echoing $? at each step of the procedure).
However, after I logged in as olpc/olpcolpc the screen froze on me!  After a while the screen saver kicked in and  hitting the return key returned to the frozen screen.

You have copied files under /boot but forgot to copy files/directories under /lib/modules (and probably /lib/firmware )

[mavrothal]

You have copied files under /boot but forgot to copy files/directories under /lib/modules (and probably /lib/firmware )

!!!
It makes sense if the addition of echo $? messed up the process where the cp -a /lib/modules ask if its OK to overwrite. Is that the case? is echoing $? when the program asks for input interrupts the process? (just try to improve on my linux knowledge  )

[Rao]

You have copied files under /boot but forgot to copy files/directories under /lib/modules (and probably /lib/firmware )

!!!
It makes sense if the addition of echo $? messed up the process where the cp -a /lib/modules ask if its OK to overwrite. Is that the case? is echoing $? when the program asks for input interrupts the process? (just try to improve on my linux knowledge  )

In fact, I forgot to copy the lib/modules/* (however, I had copied the firmware/). But copying the lib/modules/* caused boot up problems (lot of fs errors). So I am redoing the whole thing!

Since I don't know how to name the drive USB,  I had manually typed the commands.  Also, the umount command fails if I type the commands in the order given (the journal doesn't show the drive and so can't unmount via the journal) and if I go ahead in spite of that the fsdisk commands fails.
By trial and error I found out that with the following procedure fsdisk command
works successfully.
1 plug in the Ubuntu drive (df shows it on /dev/sda1)
2 umount the Ubuntu drive
3 plug in the drive containing the bz2 file into another USB port (df shows it on /dev/sdb1)
4 issue the inhibit-suspend and haldaemon commands
5 the rest as per the installToUSB.txt procedure (from dd command on).

I don't know if my procedure makes sense for you guys but that is what worked for me. Copying the lib/modules never asks for OK.  But in fact,  the mke2fs command asks  for response at a couple of points but continues even without response.

[teapot]

You have copied files under /boot but forgot to copy files/directories under /lib/modules (and probably /lib/firmware )

!!!
It makes sense if the addition of echo $? messed up the process where the cp -a /lib/modules ask if its OK to overwrite. Is that the case? is echoing $? when the program asks for input interrupts the process? (just try to improve on my linux knowledge  )

Usually every process has standard input, standard output and standard error output that by default are attached to a terminal. Terminal does not pass data between processes running in it  (*) -- everything at the input is read from the terminal and everything at the output is printed on the terminal, so merely printing something does not affect what other processes can read. To pass data between processes, so output of one is read at the input of another, you need to connect them through a pipe.

Also cp -a never asks for confirmation. On some systems when cp, rm and mv are called in an interactive session (as opposed to being called from a script), shell adds -i option, so they ask for confirmation. This is configured in sh/bash/... startup scripts using alias command.


--
(*) There is an exception to this rule -- some control sequences sent to the terminal can cause the terminal itself to "type" a response. If a program requested a response but did not read it, it will remain in the buffer and the next program will see it at its input. For example, echo -e '\033[c' produces an equivalent of typing <Esc>[?<some number>;<some number>;c

[mavrothal]

I have uploaded a new version of the power management scripts at

http://mars.illtel.denver.co.us/~abelits/software/olpc/power-management/xo-power-management-0.3.tar.gz

One little problem is that if you suspend from the power button and then close the lid within 3-5 sec, it suspend again (and sounds like it)! Opening the lid you get the screen saver (with no login  window) but if you start typing, it appears, you login and then goes to suspension again by itself if there is no activity for few seconds! Pressing the power button wakes up again and is fine. I would guess if suspension is initiated would not be retriggered but does not seem to be the case.
Also some times with this process of double suspend and wakeup, the network manager is gone and have to restart to recover it...
Just to let you know for v 0.4

[Rao]

You have copied files under /boot but forgot to copy files/directories under /lib/modules (and probably /lib/firmware )

!!!
It makes sense if the addition of echo $? messed up the process where the cp -a /lib/modules ask if its OK to overwrite. Is that the case? is echoing $? when the program asks for input interrupts the process? (just try to improve on my linux knowledge  )

I ran the following command on my xO to install Ubuntu on a USB drive (after updating to build 767),

sh -x Ubinstall.sh >out1 2>out2&

It finished in about 10 minuutes.

The out1 file is as follows:
Stopping HAL daemon: ^[[60G[^[[0;32m  OK  ^[[0;39m]

Disk /dev/sda: 1011 cylinders, 64 heads, 62 sectors/track
Old situation:
Units = cylinders of 516096 bytes, blocks of 1024 bytes, counting from 0

   Device Boot Start     End   #cyls    #blocks   Id  System
/dev/sda1   *      0+   3981-   3982-   2006823    b  W95 FAT32
/dev/sda2          0       -       0          0    0  Empty
/dev/sda3          0       -       0          0    0  Empty
/dev/sda4          0       -       0          0    0  Empty
New situation:
Units = cylinders of 2031616 bytes, blocks of 1024 bytes, counting from 0

   Device Boot Start     End   #cyls    #blocks   Id  System
/dev/sda1   *      0+   1010    1011-   2005823+  83  Linux
/dev/sda2          0       -       0          0    0  Empty
/dev/sda3          0       -       0          0    0  Empty
/dev/sda4          0       -       0          0    0  Empty
Successfully wrote the new partition table

Re-reading the partition table ...

Filesystem label=OLPCRoot
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
125440 inodes, 501455 blocks
25072 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=515899392
16 block groups
32768 blocks per group, 32768 fragments per group
7840 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912

Writing inode tables:  0/16^H^H^H^H^H 1/16^H^H^H^H^H 2/16^H^H^H^H^H 3/16^H^H^H^H^H 4/16^H$
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 35 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
All done!
Reboot your XO to start using Ubuntu
login with username:olpc password:olpcolpc

===
The out2 file is as follows:


+ touch /etc/ohm/inhibit-idle-suspend
+ /etc/init.d/haldaemon stop
+ umount /dev/sda1
umount: /dev/sda1: not mounted
+ dd if=/dev/zero of=/dev/sda1 bs=4096 count=1
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 0.00288093 s, 1.4 MB/s
+ sfdisk -f /dev/sda
Checking that no-one is using this disk right now ...
OK
Warning: The partition table looks like it was made
  for C/H/S=*/16/63 (instead of 1011/64/62).
For this listing I'll assume that geometry.
                end: (c,h,s) expected (1023,15,63) found (908,15,63)
If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)
to zero the first 512 bytes:  dd if=/dev/zero of=/dev/foo7 bs=512 count=1
(See fdisk(.)
+ mke2fs -j -L OLPCRoot /dev/sda1
mke2fs 1.40.8 (13-Mar-2008)
Warning: 256-byte inodes not usable on older systems
+ mkdir /media/OLPCRoot
+ mount /dev/sda1 /media/OLPCRoot
+ mkdir /media/OLPCRoot
+ mount /dev/sda1 /media/OLPCRoot
+ cd /media/OLPCRoot
+ tar xvjf /media/7008-CB1C/OLPCFiles-hardy-20080506.tar.bz2
+ cp -a /security .
+ cp -ia /boot/System.map-2.6.25-20080925.1.olpc.f10b654367d7065 /boot/actos.zip /boot/ac$
cp: overwrite `boot/olpc.fth'? + cp -a /lib/modules/2.6.25-20080925.1.olpc.f10b654367d706$
+ cp -a /lib/firmware/usb8388.bin lib/firmware/
+ cp /media/7008-CB1C/fstab etc/fstab
+ cp /media/7008-CB1C/olpc.fth boot/olpc.fth
+ cd /
+ umount /media/OLPCRoot
+ echo 'All done!'
+ echo 'Reboot your XO to start using Ubuntu'
+ echo 'login with username:olpc password:olpcolpc'
+ rm /etc/ohm/inhibit-idle-suspend
+ /etc/init.d/haldaemon start
+ exit 0

==
As far as I can tell the script ran without any problem.
But the boot up of Ubuntu fails.
The errors printed out many times are,

EXT3 fs error
Cannot execute /sbin/getty
INIT:  Id 1-6 respawning too fast, disabled for 5 minutes



Can somebody tell me what I am doing wrong this time.

I hope I can expect to be forgiven for the long post!

thanks,

Rao

[mavrothal]

Checking that no-one is using this disk right now ...
OK

It would appear that your stick is still mounted. Is a VFAT stick so you MUST unmount it from the Journal, before you run the script.
Also try a factory fresh stick just in case that this one has something that blocks the process
I'm not really sure why you get this

For this listing I'll assume that geometry.
                end: (c,h,s) expected (1023,15,63) found (908,15,63)
If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)
to zero the first 512 bytes:  dd if=/dev/zero of=/dev/foo7 bs=512 count=1
(See fdisk(.)

But looks like that you have still have a VFAT filesystem when you install Ubuntu, so is unlikely for the OS to work I would say.
Also you may be using the older version of the script that makes 3 more empty partitions. Is not a problem, but since you have partition problems use the latest version.

[Rao]

Checking that no-one is using this disk right now ...
OK

It would appear that your stick is still mounted. Is a VFAT stick so you MUST unmount it from the Journal, before you run the script.
Also try a factory fresh stick just in case that this one has something that blocks the process
I'm not really sure why you get this

For this listing I'll assume that geometry.
                end: (c,h,s) expected (1023,15,63) found (908,15,63)
If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)
to zero the first 512 bytes:  dd if=/dev/zero of=/dev/foo7 bs=512 count=1
(See fdisk(.)

But looks like that you have still have a VFAT filesystem when you install Ubuntu, so is unlikely for the OS to work I would say.
Also you may be using the older version of the script that makes 3 more empty partitions. Is not a problem, but since you have partition problems use the latest version.

Thanks for the prompt reply.

I beg to differ.  I did unmount it from the journal before starting the Ubinstall.sh script (the USB drive (a SanDisk) was wiped out clean using U3Uninstall too provied by U3.com).  I believe that it does use VFAT when it formats the drive.

Also, as you can see from Out2 file in my post, the fourth line reads/says "umount: /dev/sda1: not mounted."

Is there any tool on XO that I can use to clean out the drive?

thanks,

Rao