Database Develop

[Solved]Help to mount SDcard

Hi I built a little script to mount my SDcard @ startup of the phone and install some apps.
here it is:
Code:
sleep 2
busybox mount > /data/mount.txt
busybox ls /dev/block/vold >> /data/mount.txt
busybox mount -t vfat -o rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1015,fmask=0702,dmask=0702,allow_utime=0020,shortname=mixed,utf8 /dev/block/vold/179:1 /sdcard >> /data/mount.txt
busybox mount >> /data/mount.txt
sleep 3
echo "APPS installation"
if [ -e /sdcard/Apps-install/install.txt ];
then
echo "found file" > /sdcard/Apps-install/install.txt
cd /sdcard/Apps-install
ls *.apk > ./apps.txt
for line in $(cat apps.txt); do install -c -D /sdcard/Apps-install/"$line" /data/app >> /sdcard/Apps-install/install.txt; done
echo "ok" >> /sdcard/Apps-install/install.txt
else
echo "file not found" > /sdcard/Apps-install/install.txt
fi;
sleep 2
echo "Finish"
if [ -e /data/firstboot.sh ];
then
busybox rm -f /data/firstboot.sh;
busybox rm -f /sdcard/Apps-install/apps.txt;
fi;
echo "Restart"
sleep 1
reboot
I'm sure that the code is well executed (as is have data in /data/mount.txt) but the mount of the SD and so every work related to the SD
What is strange is that script work if i execute it after the phone has completely started.
Can someone help please.
Bye
Herc.8)

A Little up for a little help

Hi,
I still need help,
thx by advance
Bye
Herc. 8)

Ok finally found bye myself.
I changed the device: /dev/block/vold/179:1 for /dev/block/mmcblk0p1
That's all.
Bye
Herc. 8)

Ubuntu on Pancake

good i would like Ubuntu in my tatto like this site
bit.ly
dvSUHJ
do you see it ??
How to Install Ubuntu on your Nexus One/Android Phone!
but when i do this (i have patch the bootubuntu)
and when i try to load
HTML:
# bootubuntu
bootubuntu
mknod: /dev/loop1: File exists
net.ipv4.ip_forward = 1
Setting /etc/resolv.conf to Google Open DNS 8.8.8.8 and 8.8.4.4
Setting localhost on /etc/hosts
READY TO ROCK AND ROLL BABY!
Brought to you by NexusOneHacks.net and the open source community!
[1] Illegal instruction chroot ${mnt} /b...
Shutting down Ubuntu
losetup: /dev/loop1: No such device or address
#
i have this problem ...
does anyone have the solution ??

jigsaw956 said:
good i would like Ubuntu in my tatto like this site
bit.ly
dvSUHJ
do you see it ??
How to Install Ubuntu on your Nexus One/Android Phone!
but when i do this (i have patch the bootubuntu)
and when i try to load
HTML:
# bootubuntu
bootubuntu
mknod: /dev/loop1: File exists
net.ipv4.ip_forward = 1
Setting /etc/resolv.conf to Google Open DNS 8.8.8.8 and 8.8.4.4
Setting localhost on /etc/hosts
READY TO ROCK AND ROLL BABY!
Brought to you by NexusOneHacks.net and the open source community!
[1] Illegal instruction chroot ${mnt} /b...
Shutting down Ubuntu
losetup: /dev/loop1: No such device or address
#
i have this problem ...
does anyone have the solution ??
Click to expand...
Click to collapse
Code:
mknod: /dev/loop1: File exists
losetup: /dev/loop1: No such device or address
script bootubuntu can not create device - /dev/loop1.
change script bootubuntu - change /dev/loop1 on /dev/loop2 or /dev/loop3.

any success?

i work all the day so i can try this only the evening (european time) so i will try it now and sayt it to you

zlopi said:
Code:
mknod: /dev/loop1: File exists
losetup: /dev/loop1: No such device or address
script bootubuntu can not create device - /dev/loop1.
change script bootubuntu - change /dev/loop1 on /dev/loop2 or /dev/loop3.
Click to expand...
Click to collapse
i don't think the problem is here ... i think he's on the line
Code:
chroot $mnt /bin/bash
he is all the code of bootbuntu
Code:
#modprobe ext2
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
export kit=/sdcard/ubuntu
export bin=/system/bin
if [ ! -d /data/local/ubuntu ]
then
mkdir /data/local/ubuntu
fi
export mnt=/data/local/ubuntu
export PATH=$bin:/usr/bin:/usr/sbin:/bin:$PATH
export TERM=linux
export HOME=/root
mknod /dev/loop1 b 7 0
losetup /dev/block/loop1 /sdcard/ubuntu/ubuntu.img
mount -t ext2 /dev/block/loop1 /data/local/ubuntu
#mount -o loop,noatime -t ext2 $kit/ubuntu.img $mnt
mount -t devpts devpts $mnt/dev/pts
mount -t proc proc $mnt/proc
mount -t sysfs sysfs $mnt/sys
sysctl -w net.ipv4.ip_forward=1
echo "Setting /etc/resolv.conf to Google Open DNS 8.8.8.8 and 8.8.4.4"
echo "nameserver 8.8.8.8" > $mnt/etc/resolv.conf
echo "nameserver 8.8.4.4" >> $mnt/etc/resolv.conf
echo "Setting localhost on /etc/hosts "
echo "127.0.0.1 localhost" > $mnt/etc/hosts
echo "READY TO ROCK AND ROLL BABY! "
echo "Brought to you by NexusOneHacks.net and the open source community! "
echo " "
chroot $mnt /bin/bash
#After exit command is executed clear it all up
echo " "
echo "Shutting down Ubuntu"
umount $mnt/dev/pts
umount $mnt/proc
umount $mnt/sys
umount $mnt
losetup -d /dev/loop1

/dev/loop0 only exists on the HTC Tattoo. /dev/loop1, loop2, etc won't work.

Ok i Will try this after work in 2-3h
Sent from my Pancake by ikxdf using XDA App

some time ago i manage to make debian work on tattoo http://forum.xda-developers.com/showthread.php?t=682443
check that thread ..
you must mount and chroot it via busybox

Search for Ubuntu on Market, there is an app which can install either Debian or Ubuntu.

i don't find this app

It's called linux installer..

Here you have it! Tell me your results!

I am trying to install Ubuntu on nFinityROM, i have partitioned my sdcard in fat32 and about 500 MB EXT3. Now the program asks me about the full path to the EXT3 partition.
What should i write??

Ihaveatattoo said:
I am trying to install Ubuntu on nFinityROM, i have partitioned my sdcard in fat32 and about 500 MB EXT3. Now the program asks me about the full path to the EXT3 partition.
What should i write??
Click to expand...
Click to collapse
Sorry if I am being pessimistic, what good use it would be if you install linux on phone (like a tattoo).
I understand it would "probably" makes sense, to use on some high end ones
Wouldn't it be a good idea to have dual boot to another ROM than to linux

Have you seen it on Touch Diamond? It has the same screen size and a 528 Mhz CPU.
It is just cool!

i make it for fun .... only ... i will try this after flash my new rom

[SCRIPT] Quick Remount of /system in Shell

I'm not the original author of this, but I changed a few commands to make it work with the Vibrant. I found it here:
http://android.modaco.com/content/htc-hero-hero-modaco-com/295691/easy-system-remount-script/
Requires busybox.
Take this and save it as a file named "remount" or unzip it from attached archive
#!/system/bin/sh
#
# Remount /system partition
case "$1" in
ro)
echo "Setting /system to RO (read only)"
mount -o ro,remount -t rfs /dev/block/stl9 /system
echo ""
echo "Current status of /system mount:"
mount |busybox grep "/system rfs"
echo ""
;;
rw)
echo "Setting /system to RW (read write)"
mount -o rw,remount -t rfs /dev/block/stl9 /system
echo ""
echo "Current status of /system mount:"
mount |busybox grep "/system rfs"
echo ""
;;
status)
echo ""
echo "Current status of /system mount:"
mount |busybox grep "/system rfs"
echo ""
;;
*)
echo "Valid input format:"
echo " remount [ro|rw|status]"
echo " ro = read only (default)"
echo " rw = read write (to make modifications)"
echo " status = current mount mode"
echo ""
echo "Current status of /system mount:"
mount |busybox grep "/system rfs"
echo ""
exit 1
esac
Click to expand...
Click to collapse
From Windows:
adb push c:\path\to\remount /sdcard/
adb shell
su
mount -o rw,remount -t rfs /dev/block/stl9 /system
busybox mv /sdcard/remount /system/bin/
chmod 755 /system/bin/remount
remount ro
Ctrl+C. Tada!

Re-enabling ext4 journaling in ROMs based on Stock

Hey there,
it's known that ext4 with disabled journaling is little faster than default, but it is also less reliable.
This can result in screwed up homescreens and force-closes after reboot/shutdown/battery pull.
I have successfully re-enabled journaling for system and cache partition, but it seems not to work correctly for data partition, at least for me. Can you help?
Code:
echo ..............system Partition...............
/sbin/busybox umount -l /system
/sdcard/tmp/tune2fs -O +has_journal -c 5 -i 5d -m 0 -o journal_data_ordered /dev/block/mmcblk0p1
fsck.ext4 -Dfy /dev/block/mmcblk0p1
/sbin/busybox mount -t ext4 -o nosuid,nodev,noatime,nodiratime,barrier=0,nobh,data=ordered,noauto_da_alloc /dev/block/mmcblk0p1 /system
echo ...............done...............
echo ...............cache Partition...............
/sbin/busybox umount -l /cache
/sdcard/tmp/tune2fs -O +has_journal -c 100 -i 100d -m 0 -o journal_data_writeback /dev/block/mmcblk0p2
fsck.ext4 -Dfy /dev/block/mmcblk0p2
/sbin/busybox mount -t ext4 -o nosuid,nodev,noatime,nodiratime,barrier=0,nobh,data=ordered,noauto_da_alloc /dev/block/mmcblk0p2 /cache
echo ...............done...............
echo ...............data Partition...............
/sbin/busybox umount -l /data
/sdcard/tmp/tune2fs -O +has_journal -c 5 -i 5d -m 0 -o journal_data_ordered /dev/block/mmcblk0p8
fsck.ext4 -Dfy /dev/block/mmcblk0p8
/sbin/busybox mount -t ext4 -o nosuid,nodev,noatime,nodiratime,barrier=0,nobh,data=ordered,noauto_da_alloc /dev/block/mmcblk0p8 /data
sync
echo ...............done...............
Semi-finished:
Flash journaling.zip via CWM to enable back journaling
Download
Download 'terminal emulator' from market and type the following to test if it works.
If 'has_journal' is present then journaling is enabled.
For /system
Code:
/system/bin/tune2fs -l /dev/block/mmcblk0p1 | grep features
For /cache
Code:
/system/bin/tune2fs -l /dev/block/mmcblk0p2 | grep features
For /data
Code:
/system/bin/tune2fs -l /dev/block/mmcblk0p8 | grep features
Please post feedback if it works for you (fully)!

nice good work!

Thanks!
Another easy, though more time consuming, way to re-enable journaling is to let CWM do it by a complete backup and restore.
(You can also switch between ext3 and ext4 by changing the file names in clockworkmod/backup/.../ and of course also in the nandroid.md5 file.)

Please post feedback if it works for you (especially for data partition)

Dual Boot Atrix CM9 (emmc) and CM7 (sdcard)

Recently I became interested in dual booting my Atrix, mainly for the fun of it, and because I like the convenience of quickly reverting to a different ROM without having to restore it from backup. I would also like to evaluate the performance of my system with sdcard in the loop among other things.
From my web research, it appears that multiple attempts at dual booting the Atrix have been made without much success. I have heard of SafeStrap, but I'm the kind of person who wants to know what’s happening inside the black box. So I decided to try my hand by flashing CM9 to internal memory and CM7 to my Patriot 16GB Class 4 micro-SD card. I did all of this on Ubuntu 11.10 using GParted, Android SDK and several Perl and Bourne shell scripts that I either customized or created.
I probably could have done this on Windows (which for example has Atrix USB drivers whereas Ubuntu does not) and perhaps be able to use available space on my 10GB emmc to host additional ROMs. But in spite of the lack of drivers, I felt more comfortable having a full-up, dedicated *nix-based OS on hand to support the experiment.
I decided to to push a stable ROM to sdcard (in this case, CM7.2 RC1), one that runs well without any patches --- because a stock recovery tool wouldn't recognize it.
The experiment was successful as I now enjoy my 3GB CM7 build running from SD card with stable browser, keyboard and camera. And I can still use Joker's Kitchen Sink to explore some of the many possible ROM configurations without touching the CM7 build.
YouTube video (3:38) showing reboots from one ROM to the other: http://www.youtube.com/watch?v=31TPyAguQ60
Preliminaries (Ubuntu)
GParted and Perl installed
Android SDK for Linux (i386) installed http://developer.android.com/sdk/index.html
I download testsign.zip from http://forum.xda-developers.com/showthread.php?t=551711 , copy to Ubuntu <android-sdk-linux/tools> directory and extract zip there. This creates a testsign subfolder with testsign.jar file inside.
Atrix Filesystem Analysis
I boot my phone to CWM 5.0.2.0, open an Ubuntu terminal, get root (sudo -s), run adb shell and invoke the “edify” and “df” commands to view the current filesystem:
~ # edify
recovery filesystem table
=========================
0 /tmp ramdisk (null) (null)
1 /boot emmc /dev/block/mmcblk0p11 (null)
2 /cache ext3 /dev/block/mmcblk0p15 (null)
3 /data ext3 /dev/block/mmcblk0p16 (null)
4 /sdcard vfat /dev/block/mmcblk1p1 (null)
5 /emmc vfat /dev/block/mmcblk0p18 (null)
6 /system ext3 /dev/block/mmcblk0p12 (null)
7 /recovery emmc /dev/block/mmcblk0p10 (null)
8 /osh ext3 /dev/block/mmcblk0p13 (null)
9 /preinstall ext3 /dev/block/mmcblk0p17 (null)
~ # df -a
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 417804 32 417772 0% /dev
devpts 0 0 0 0% /dev/pts
proc 0 0 0 0% /proc
sysfs 0 0 0 0% /sys
/dev/block/mmcblk0p15 645056 69020 543268 11% /cache
/dev/block/mmcblk0p16 2064208 129052 1830300 7% /data
/dev/block/mmcblk0p12 322516 238496 84020 74% /system​
SD Card Partitioning
Next I get root on Ubuntu, connect SD card to PC, ensure SD card adapter switch is set to read/write, run GParted and shrink the vfat (fat32) partition to allow room for /system, /cache and /data in that order. Then I create these partitions as ext4 with sizes reasonably consistent with the existing filesystem on emmc.
Note: GParted did not see my internal (emmc) card, and it prefixed the sdcard partitions as “/dev/mmcblk0” instead of “/dev/mmcblk1”.
Now I exit GParted, pull sdcard from PC and reinsert into phone. Then I boot to CWM, connect phone to PC, enter adb shell and verify the new sdcard partition map using the onboard “parted” tool:
~ # parted /dev/block/mmcblk1
GNU Parted 1.8.8.1.179-aef3
Using /dev/block/mmcblk1
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: SD SU16G (sd/mmc)
Disk /dev/block/mmcblk1: 15.9GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 4194kB 10.7GB 10.7GB primary fat32 lba
2 10.7GB 11.1GB 346MB primary ext4
3 11.1GB 11.8GB 692MB primary ext4
4 11.8GB 14.0GB 2217MB primary ext4
quit
~#​
Clone CM7 to SD Card
Presently I have CM7.2 RC1 installed in emmc, and I want to clone this ROM to sdcard. But I first ensure that my phone is adequately charged, especially if I will be in CWM for a long time. My experience is that CWM can drain the battery, even when phone is connected to a powered USB hub.
I boot to CWM 5.0.2.0, open Ubuntu terminal on PC, get root (sudo -s), run adb shell and mount the new CM7 sdcard partitions.
Then I clone ROM to sdcard. (I did this over ADB, though in retrospect I probably could have done it more quickly with terminal emulator.)
~ # dd if=/dev/block/mmcblk0p12 of=/dev/block/mmcblk1p2
655360+0 records in
655360+0 records out
335544320 bytes (320.0MB) copied, 140.786369 seconds, 2.3MB/s
~ # dd if=/dev/block/mmcblk0p15 of=/dev/block/mmcblk1p3
1310720+0 records in
1310720+0 records out
671088640 bytes (640.0MB) copied, 282.791984 seconds, 2.3MB/s
~ # dd if=/dev/block/mmcblk0p16 of=/dev/block/mmcblk1p4
4194304+0 records in
4194304+0 records out
2147483648 bytes (2.0GB) copied, 898.662170 seconds, 2.3MB/s​
Since the data partition is fairly large, I ending up using the “cat” command, which cut the transfer time to about 6 minutes….
~ # cat /dev/block/mmcblk0p16 > /dev/block/mmcblk1p4​
Flash CM9 to Internal Memory
Now I push Joker CM9 beta 0.6.0 zip to sdcard and install via CWM...
[email protected]:~/Desktop# adb push beta-0.6.0-cm-9.0.0-RC0-olympus-UNOFFICIAL-signed.zip /sdcard/Download
1286 KB/s (125162795 bytes in 95.013s)
[email protected]:~/Desktop#​
Modify CM7 Ramdisk, Re-pack ROM Zip and Re-sign
Now I modify ramdisk in the CM7 boot.img to mount the sdcard /system, /cache and /data partitions at boot time. To help streamline the mod, I wrote custom Perl scripts based on the ones linked here:
http://android-dls.com/wiki/index.php?title=HOWTO:_Unpack,_Edit,_and_Re-Pack_Boot_Images
My Perl script “unpack-romzip.pl” actually starts with a baseline ROM, extracts boot.img and then p****s out kernel and ramdisk directory from boot.img. Here is the script in action...
[email protected]:~/Desktop# ./unpack-romzip.pl update-cm-7.2.0-RC1-olympus+gapps.zip
Extract boot.img from update-cm-7.2.0-RC1-olympus+gapps.zip
Archive: update-cm-7.2.0-RC1-olympus+gapps.zip
inflating: boot.img
Rename boot.img to update-cm-7.2.0-RC1-olympus+gapps.img
kernel written to update-cm-7.2.0-RC1-olympus+gapps.img-kernel
ramdisk written to update-cm-7.2.0-RC1-olympus+gapps.img-ramdisk.cpio.gz
Extract ramdisk zip to directory: update-cm-7.2.0-RC1-olympus+gapps.img-ramdisk
513 blocks
Delete intermediate file: update-cm-7.2.0-RC1-olympus+gapps.img-ramdisk.cpio.gz​
Results...
-rw-r--r-- 1 root root 2574336 2012-05-03 19:12 update-cm-7.2.0-RC1-olympus+gapps.img-kernel
drwxr-xr-x 8 root root 4096 2012-05-03 19:12 update-cm-7.2.0-RC1-olympus+gapps.img-ramdisk​
In this experiment, the only ramdisk file I will modify is init.olympus.rc: I do so by commenting out the /system, /cache and /data mount commands for the emmc partitions and creating equivalent mount commands for the sdcard partitions...
# mount ext4 /dev/block/mmcblk0p12 /system noatime nodiratime wait ro barrier=1
# mount ext4 /dev/block/mmcblk0p16 /data nosuid nodev noatime nodiratime wait barrier=1 noauto_da_alloc
# mount ext4 /dev/block/mmcblk0p15 /cache nosuid nodev noatime nodiratime wait barrier=1 noauto_da_alloc
mount ext4 /dev/block/mmcblk1p2 /system noatime nodiratime wait ro barrier=1
mount ext4 /dev/block/mmcblk1p4 /data nosuid nodev noatime nodiratime wait barrier=1 noauto_da_alloc
mount ext4 /dev/block/mmcblk1p3 /cache nosuid nodev noatime nodiratime wait barrier=1 noauto_da_alloc​
Now I back out of ramdisk and run my other Perl script: repack-romzip.pl, which combines ramdisk and kernel to obtain a new boot image and then generates a repacked ROM zip. Here is the script in action...
[email protected]:~/Desktop# ./repack-romzip.pl update-cm-7.2.0-RC1-olympus+gapps.zip
Repack Android boot image from kernel file and ramdisk directory and roll into new ROM zip
Run cpio and gzip on ramdisk directory
514 blocks
Make boot image from kernel file and ramdisk cpio zip
Updated boot.img...
-rw-r--r-- 1 root root 2725888 2012-05-03 19:20 update-cm-7.2.0-RC1-olympus+gapps-repack.img
Copy update-cm-7.2.0-RC1-olympus+gapps.zip to update-cm-7.2.0-RC1-olympus+gapps-repack.zip
Add updated boot.img to update-cm-7.2.0-RC1-olympus+gapps-repack.zip
updating: boot.img
zip warning: Local Entry CRC does not match CD: boot.img
(deflated 0%)​
I am almost ready to re-sign my CM7 ROM zip. But I first need to modify its updater-script to mount /system to /dev/block/mmcblk1p2 (sdcard) instead of /dev/block/mmcblk0p12 (emmc). So I edit the updater-script and change:
format("ext4", "EMMC", "/dev/block/mmcblk0p12");
mount("ext4", "EMMC", "/dev/block/mmcblk0p12", "/system");​
to
format("ext4", "EMMC", "/dev/block/mmcblk1p2");
mount("ext4", "EMMC", "/dev/block/mmcblk1p2", "/system");​
Now I invoke the java command below to re-sign the CM7 zip:
[email protected]:~/Desktop# java -classpath ~/android-sdk-linux/tools/testsign/testsign.jar testsign update-cm-7.2.0-RC1-olympus+gapps-repack.zip update-cm-7.2.0-RC1-olympus+gapps-repack-signed.zip
[email protected]:~/Desktop# ls -ld *.zip
-rw-rw-r-- 1 robert robert 125162795 2012-05-03 18:05 beta-0.6.0-cm-9.0.0-RC0-olympus-UNOFFICIAL-signed.zip
-rw-r--r-- 1 root root 105000424 2012-05-03 19:23 update-cm-7.2.0-RC1-olympus+gapps-repack-signed.zip
-rw-r--r-- 1 root root 104987732 2012-05-03 19:20 update-cm-7.2.0-RC1-olympus+gapps-repack.zip
-rw------- 1 robert robert 104999357 2012-05-01 20:10 update-cm-7.2.0-RC1-olympus+gapps.zip​
Then I transfer the re-signed zip to sdcard/Download, reboot to CWM and install.
Test Results
I do some preliminary testing by attempting to boot CM9 from Joker's CM9 1.0GHz v4 boot image file:
[email protected]:~/Desktop# fastboot boot cm9-1.0-atrixv4-boot.img
downloading 'boot.img'...
OKAY [ 0.204s]
booting...
OKAY [ 0.002s]
finished. total time: 0.206s​
Success. Now I try CM7...
[email protected]:~/Desktop# fastboot boot update-cm-7.2.0-RC1-olympus+gapps-repack.img
downloading 'boot.img'...
OKAY [ 0.182s]
booting...
OKAY [ 0.002s]
finished. total time: 0.185s​
And to my delight, CM7 boots
Finally I install Script Manager and push my custom boot-rom.sh to sdcard/Boot. This script offers four options: Current ROM (default), CM9, CM7 or CWM recovery. Rebooting to the other ROM is just a few keystrokes away, though I must configure Script Manager to run boot-rom.sh as superuser (press SU button on configuration screen).
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Elapsed times…
Execution of boot-rom.sh on CM7 to CM9 welcome screen: 44 sec.
Execution of boot-rom.sh on CM9 to CM7 welcome screen: 45 sec.
Conclusions and Thoughts
My Atrix dual boot capability offers an efficient means to circumvent instabilities in CM9 by providing a stable CM7 ROM to run from my sdcard. Of course there are limitations here in that a stock recovery won't recognize my CM7 build. But I'm fine with that since I probably won't patch.
I think it would be kind of interesting to push identical ROMs on emmc and sdcard and compare performance. I heard from a fellow engineer that Class 16 cards are now available.
It would also be interesting to explore refinements like multiple-boot from emmc and various forms of automation.
This is a work in progress and I appreciate your constructive feedback.
YouTube video (3:38) showing reboots from one ROM to the other: http://www.youtube.com/watch?v=31TPyAguQ60
Credits
jokersax11 @ xda, ghost_og @ xda,
Photon Dev Team, Atrix Dev Team
Koush
Other credits embedded in this post

Holy. ****.
Sent from my MB860 using XDA

Wow thanks for the info. I wanted to give this a try but I had a question. If I partition my sdcard to the specs you provided, can I flash your resigned cm7 zip and it would flash it to my sdcard. If that is possible, could you post the modified cm7?

Wow....waiting is coming.......

Something you could look into is moving the apps to SD and let each rom build its own dalvik cache. Then you can keep your apps between both builds
Sent from my MB855 using XDA

I think you better get into developing roms, because it sounds like you have an amazing amount of knowledge with this technology. Something I can only hope to achieve, lol.
I think you should make a full length 45 min youtube clip to explain everything, but I know that's not gonna happen, so see how much you can cram into 5 minutes! lol
Nice job man, outstanding progression!

Blur ROM with WebTop and CM9
Is it possible to switch between Blur based ROM with WebTop and CM9?

#!/system/bin/sh
mount -o remount,rw /dev/block/mmcblk0p1 /system//挂载/system为可写
busybox md5sum -cs /system/boot/md5 && CHANGE=0 || CHANGE=1//判断boot.img是否更新
echo $CHANGE
if [ "$CHANGE" = "1" ]
then
cat /dev/block/mmcblk0p5 > /data/boot1.img
busybox md5sum /system/build.prop > /system/boot/md5
echo "Creat new boot done!"
fi
if [ -e /data/boot2.img ]//判断另外的系统是否更新boot.img
then
busybox mv /data/boot2.img /system/boot/boot2.img
echo "Backup new boot done!"
fi
cat /system/boot/boot2.img > /dev/block/mmcblk0p5
fdisk /dev/block/mmcblk0 < /system/bin/fdisk1.sh
///////////////////同fixuid
mkdir /data/lib
chmod 0777 /data/lib
cat /data/system/packages.xml | grep 'package name="'| awk -F"\"" '{print $2}' > /data/packages.list
awk -F" " '{print "rm /data/data/"$1"/lib"}' /data/packages.list > /data/cx.sh
cat /system/bin/noshare|while read fname
do
echo "rm $fname-2/lib" >>/data/cx.sh
done
awk -F" " '{print "mkdir /data/lib/"$1}' /data/packages.list >> /data/cx.sh
awk -F" " '{print "mv /data/data/"$1"/lib/ /data/lib/"$1"/"}' /data/packages.list >> /data/cx.sh
busybox chown -R 1000.1000 /data/lib
awk -F" " '{print "rm -R /data/data/"$1"/lib"}' /data/packages.list >> /data/cx.sh
cat /system/bin/noshare|while read fname
do
echo "rm -R $fname-2/lib" >>/data/cx.sh
done
chmod 0777 /data/cx.sh
/data/cx.sh
////////////////////////////////////////////////////移动第二系统数据为主数据
cat /system/bin/noshare|while read fname
do
mv $fname "$fname-1"
mv "$fname-2" $fname
done
cat /data/noshare|while read fname//移动不需要共享的数据
do
mv $fname "$fname-1"
mv "$fname-2" $fname
done
echo "Move data done!"
/////////////////////////同fixuid
awk -F" " '{print "ln -s /data/lib/"$1" /data/data/"$1"/lib"}' /data/packages.list > /data/cx.sh
cat /data/system/packages.xml | grep 'package name=\"'| awk -F"\"" '{print $2" "$18}' | awk -F" " '{print "busybox chown -R "$2"."$2" /data/data/"$1}' >> /data/cx.sh
chmod 0777 /data/cx.sh
/data/cx.sh
echo "Move UID done!"
reboot

kingme__hu said:
#!/system/bin/sh
mount -o remount,rw /dev/block/mmcblk0p1 /system//挂载/system为可写
busybox md5sum -cs /system/boot/md5 && CHANGE=0 || CHANGE=1//判断boot.img是否更新
echo $CHANGE
if [ "$CHANGE" = "1" ]
then
cat /dev/block/mmcblk0p5 > /data/boot1.img
busybox md5sum /system/build.prop > /system/boot/md5
echo "Creat new boot done!"
fi
if [ -e /data/boot2.img ]//判断另外的系统是否更新boot.img
then
busybox mv /data/boot2.img /system/boot/boot2.img
echo "Backup new boot done!"
fi
cat /system/boot/boot2.img > /dev/block/mmcblk0p5
fdisk /dev/block/mmcblk0 < /system/bin/fdisk1.sh
///////////////////同fixuid
mkdir /data/lib
chmod 0777 /data/lib
cat /data/system/packages.xml | grep 'package name="'| awk -F"\"" '{print $2}' > /data/packages.list
awk -F" " '{print "rm /data/data/"$1"/lib"}' /data/packages.list > /data/cx.sh
cat /system/bin/noshare|while read fname
do
echo "rm $fname-2/lib" >>/data/cx.sh
done
awk -F" " '{print "mkdir /data/lib/"$1}' /data/packages.list >> /data/cx.sh
awk -F" " '{print "mv /data/data/"$1"/lib/ /data/lib/"$1"/"}' /data/packages.list >> /data/cx.sh
busybox chown -R 1000.1000 /data/lib
awk -F" " '{print "rm -R /data/data/"$1"/lib"}' /data/packages.list >> /data/cx.sh
cat /system/bin/noshare|while read fname
do
echo "rm -R $fname-2/lib" >>/data/cx.sh
done
chmod 0777 /data/cx.sh
/data/cx.sh
////////////////////////////////////////////////////移动第二系统数据为主数据
cat /system/bin/noshare|while read fname
do
mv $fname "$fname-1"
mv "$fname-2" $fname
done
cat /data/noshare|while read fname//移动不需要共享的数据
do
mv $fname "$fname-1"
mv "$fname-2" $fname
done
echo "Move data done!"
/////////////////////////同fixuid
awk -F" " '{print "ln -s /data/lib/"$1" /data/data/"$1"/lib"}' /data/packages.list > /data/cx.sh
cat /data/system/packages.xml | grep 'package name=\"'| awk -F"\"" '{print $2" "$18}' | awk -F" " '{print "busybox chown -R "$2"."$2" /data/data/"$1}' >> /data/cx.sh
chmod 0777 /data/cx.sh
/data/cx.sh
echo "Move UID done!"
reboot
Click to expand...
Click to collapse
What's this? I don't... I... can't comprehend...
Anyone able to make an auto script to help beginners and confused people like me? I can't follow through half of the OP's instructions.... not used to using SDK and terminal/ADB.

Woooow!! This is epic dude! I could have a Blur rom on my sd and a custom rom on my internal, to keep webtop functionality when i want! A Windows guide would be prettt awesome!
Sent from my MB860 using XDA

Amazing!
This is amazing!! Thanks a lot for your work!
This could make things MUCH easier for me when testing both CM9 and CM7 Neutrino.
I hope this project matures by the time my exams finish, like as Jokersax11 said, the ability to save dalvik cache would be awesome.
Massive thumbs up from me here

This really is some fantastic development! I am beyond impressed. You my friend should join the league of developer jedi's.
Fantastic work!
Now, if this could only somehow be transformed into a zip...LOL

J-Roc said:
This really is some fantastic development! I am beyond impressed. You my friend should join the league of developer jedi's.
Fantastic work!
Now, if this could only somehow be transformed into a zip...LOL
Click to expand...
Click to collapse
+1 for the ZIP and making this easier to use for the Ordinary good people like Some of Us
Amazing work ! Keep up

Thanks to your guide I've made it to cloning to sdcard all with windows. Will post back with tutorial if I can finish the job. Thank you for your amazing work!

Maybe you can work together with BootManager dev to support Atrix...

Dude, you're awesome. I think this is the final little push I needed to get me computer set up to dual boot Ubuntu and windows definitely going to be worth it now. Thanks for the work

KH_Lionheart said:
Dude, you're awesome. I think this is the final little push I needed to get me computer set up to dual boot Ubuntu and windows definitely going to be worth it now. Thanks for the work
Click to expand...
Click to collapse
You are quite welcome!

YouTube video (3:38) demonstrating reboot from one ROM to the other: http://www.youtube.com/watch?v=31TPyAguQ60

Sweet!
Seeing as how you had this on the back burner, I am SO glad you got those kernel building issues squashed. Awesome job man!

J-Roc said:
This really is some fantastic development! I am beyond impressed. You my friend should join the league of developer jedi's.
Fantastic work!
Now, if this could only somehow be transformed into a zip...LOL
Click to expand...
Click to collapse
tasadar said:
+1 for the ZIP and making this easier to use for the Ordinary good people like Some of Us
Amazing work ! Keep up
Click to expand...
Click to collapse
Here's the problem: I needed GApps on CM7 to provide the tools needed to support my experiment. However, Google has requested that copyrighted material be removed from CM7. So while I was able to streamline the integration of GApps with CM7, I could not provide the ROM, only the procedure. See http://forum.xda-developers.com/showthread.php?p=25588129#post25588129.
IDK, maybe Google will soften up a bit...?