Editing Easy Debian

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; Close Debian : for unmounting the Debian image and shutting down all running Debian processes
; Close Debian : for unmounting the Debian image and shutting down all running Debian processes
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; Deb Img Install : for the initial download and extraction of the Debian image. For installing a new version of the Debian image from [http://qole.org/files http://qole.org/files], delete the old image (or move/rename it appropriately) and rerun Deb Img Install.
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; Deb Img Install : for the initial download and extraction of the Debian image. For installing a new version of the Debian image from http:qole.org/files, delete the old image (or move/rename it appropriately) and rerun Deb Img Install.
; Debian chroot : this runs "sudo debian" in XTerminal, which gives root access to the Debian image. This can be used for modifying the Debian image and installing further applications from the command line. The root file system of Maemo is not visible from within Debian chroot, except /home and /home/user/MyDocs, so you cannot ruin the Maemo firmware from here.
; Debian chroot : this runs "sudo debian" in XTerminal, which gives root access to the Debian image. This can be used for modifying the Debian image and installing further applications from the command line. The root file system of Maemo is not visible from within Debian chroot, except /home and /home/user/MyDocs, so you cannot ruin the Maemo firmware from here.
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  deb http://ftp.debian.org/debian squeeze main contrib non-free
  deb http://ftp.debian.org/debian squeeze main contrib non-free
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  #deb http://www.debian-multimedia.org squeeze main
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  deb http://www.debian-multimedia.org squeeze main
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[EDIT: By july 2013, the debian-multimedia.org domain was not anymore owned by the third-party supporters who owned it before! For security reasons it is not recommended to use it. Nevertheless, the official repository has improved its support over several mulimedia formats making third-party repositories unncecessary]
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Easy Debian has only a limited amount of disk space, so we'll temporarily create a new place to store the downloaded new packages in MyDocs:
Easy Debian has only a limited amount of disk space, so we'll temporarily create a new place to store the downloaded new packages in MyDocs:
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So, without harming portability, we can increase our image file by 1GB (almost) and then grow the file system to fit it. To increase the image size, first, concatenate 1GB of zeroes onto the end of the file:
So, without harming portability, we can increase our image file by 1GB (almost) and then grow the file system to fit it. To increase the image size, first, concatenate 1GB of zeroes onto the end of the file:
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<pre>dd if=/dev/zero bs=1M count=1024 >> /path/to/image.ext3</pre>
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<pre>dd if=/dev/zero bs=1M count=1048576 >> /path/to/image.ext3</pre>
Note that the ">>" is critical here, meaning append the zeroes to the end of the file; accidentally use ">" and you'll overwrite the image. The command will "fail" with an error when you hit 4GB on a FAT32 filesystem, but, don't worry, that's because we hit the maximum file size before we ran out of zeroes. Our image file will still be the desired maximum possible size. Now, we need to unmount and remount the image, in order for the loop mount to pick up the larger "device" that we just created. This is as simple as running the Close Debian script, then restarting Easy Debian via Deb Chroot (or sudo debian).
Note that the ">>" is critical here, meaning append the zeroes to the end of the file; accidentally use ">" and you'll overwrite the image. The command will "fail" with an error when you hit 4GB on a FAT32 filesystem, but, don't worry, that's because we hit the maximum file size before we ran out of zeroes. Our image file will still be the desired maximum possible size. Now, we need to unmount and remount the image, in order for the loop mount to pick up the larger "device" that we just created. This is as simple as running the Close Debian script, then restarting Easy Debian via Deb Chroot (or sudo debian).
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==== ext2 to ext3 ====
==== ext2 to ext3 ====
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This is fairly easy; from within the chroot, issue:
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This is fairly easy; from within the chroot, issue
<pre>tune2fs -j /dev/loop0</pre>
<pre>tune2fs -j /dev/loop0</pre>
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assuming your first partition that is mounted on "/" is called loop0. It may be called dm-0, or anything else. To be sure, check it out. Issue:
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which will add a journal to your ext2 filesystem. Close down Easy Debian, rename your image file from <image-name>.ext2 to <image-name.ext3>, make sure that the image name is either configured in .chroot or that it's the first such image in the directory, restart Easy Debian, and away you go. Take note that adding a journal adds overhead and may not improve performance; understand the implications before you proceed.
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<pre>df -k</pre>
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and you should get an output like this:
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<pre>
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Filesystem      1K-blocks    Used  Available Use% Mounted on
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/dev/loop0        2064208  1733036    331172  84% /
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/dev/mmcblk0p2    2064208    796220  1163132  41% /home
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/dev/mmcblk0p1  28312128  2252928  26059200  8% /home/user/MyDocs
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</pre>
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'''Example:'''
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If the first partition mounted on "/" is called /dev/dm-0 instead of /dev/loop0, then the command should be:
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<pre>tune2fs -j /dev/dm-0</pre>
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'''end of Example'''
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This command will add a journal to your ext2 filesystem. It will appear that it waits for your input since it will throw you a colon "'''Creating journal inode:'''". Do not type anything and wait approx. one minute to finish by itself. Close down Easy Debian (it is advisable to close it through it's specific icon named "Close Debian" which will properly close Debian and unmont everything).
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Then, from Maemo's X Terminal as root, rename your image file from <image-name>.ext2 to <image-name>.ext3.
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After that, edit /home/user/.chroot file by issuing:
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<pre>nano /home/user/.chroot</pre>
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and change ext2 into ext3 on those 2 unhashed fields:
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<pre>
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# Some examples:
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IMGFILE=/home/user/MyDocs/debian-m5-v3e.img.ext2
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#IMGFILE=/media/mmc1/debian-squeeze-m5.img.ext2
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#IMGFILE=/dev/mmcblk1p2
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#IMGFILE=/dev/mmcblk0p4
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# Filesystem used; must always be set when using a partition.
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# Default: from extension of IMGFILE, or ext2.
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IMGFS=ext2
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</pre>
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Restart Easy Debian, and away you go. Take note that adding a journal adds overhead and may not improve performance; understand the implications before you proceed.
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==== ext3 to ext4 (or anything else) ====
==== ext3 to ext4 (or anything else) ====
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It does no harm at this point to run a filesystem check on the newly created image. You'll also need to make sure that the image is either configured in .chroot or is the first such image in the directory in order for the Easy Debian chroot scripts to pick it up.
It does no harm at this point to run a filesystem check on the newly created image. You'll also need to make sure that the image is either configured in .chroot or is the first such image in the directory in order for the Easy Debian chroot scripts to pick it up.
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== Directory based chroot ==
 
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First copy the filesystem to your homefs. Then edit your ~/.chroot, so that it contains
 
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    IMGFILE=none
 
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    CHROOT=/path/to/chroot
 
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TODO: Do some magic with closechroot
 
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