Disk images might be generated on the Windows side

[Agostino Russo]

Binary package hint: partman-auto-loop

Creating disk images in Linux is slow, and unless fallocate is implemented, it will be necessary to generate the images on the windows side.
The following is a preliminary patch against autopartition-loop

97,102c97
< #skip resize_range check if images are already created
< if true; then #TBD check if images are already created
< cursize=10000000000
< minsize=0
< else
< case $partition_fs in
---
> case $partition_fs in
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< db_input critical partman-auto-loop/unclean_ntfs || true
< db_go || true
129d121
< reboot
137,138c129
< esac
< fi
---
> esac
213d203
< pidof /sbin/mount.ntfs >> /var/run/sendsigs.omit
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< # Ensure that no old loop images are present and mountable.
< mkdir -p /tmpmountpoint
---
> # Ensure that no old loop images are present.
> found_images=
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< if mount -t auto -o loop,ro /host$path /tmpmountpoint 2>/dev/null; then
< db_progress STOP
< db_subst partman-auto-loop/unclean_host PARTITION "$partition"
< db_subst partman-auto-loop/unclean_host DISK "$disk"
< db_subst partman-auto-loop/unclean_host IMAGES "$path"
< db_input critical partman-auto-loop/unclean_host || true
< db_capb
< db_go || true
< db_capb backup
< umount /tmpmountpoint || true
< rmdir /tmpmountpoint || true
< umount /host || true
< exit 1
< fi
---
> found_images="${found_images:+$found_images }$path"
248a226,237
> if [ "$found_images" ]; then
> db_progress STOP
> db_subst partman-auto-loop/unclean_host PARTITION "$partition"
> db_subst partman-auto-loop/unclean_host DISK "$disk"
> db_subst partman-auto-loop/unclean_host IMAGES "$found_images"
> db_input critical partman-auto-loop/unclean_host || true
> db_capb
> db_go || true
> db_capb backup
> umount /host || true
> exit 1
> fi
269,277c258,260
< if ![ -f "/host/$path" ];then
< mkdir -p "/host${path%/*}"
< if [ "$(basename /host$path)" = "swap.disk" ]; then
< #swap requires a file with no holes
< dd if=/dev/zero of="/host$path" bs="1MB" count="$1"
< else
< dd if=/dev/zero of="/host$path" bs="1MB" seek="$1" count=0
< fi
< fi
---
> mkdir -p "/host${path%/*}"
> rm -f "/host$path"
> dd if=/dev/zero of="/host$path" bs="1000000" seek="$1" count=0

Template: partman-auto-loop/unclean_ntfs
Type: error
Description: The NTFS partition is unclean, probably the system was not shutdow$

[Agostino Russo (ago)]

The template message was truncated:

Template: partman-auto-loop/unclean_ntfs
Type: error
Description: The NTFS partition is unclean, probably the system was not shutdown properly, please run "chkdsk /r" from Windows and once that is fixed you should be able to resume the installation. Press OK to reboot.

[Agostino Russo (ago)]

For a more recent versions of the patch code please see:

https://code.launchpad.net/~ago/partman-auto-loop/lupin-support

[Evan (ev)]

Ago,

The patch you've provided (in the form of a branch) is incomplete:

>> #skip resize_range check if images are already created
>> if true; then #TBD check if images are already created

Can you code the check, and let me know when your branch is updated?

Thanks!

[Agostino Russo (ago)]

Done in new version

[Launchpad Janitor (janitor)]

This bug was fixed in the package partman-auto-loop - 0ubuntu13

---------------
partman-auto-loop (0ubuntu13) hardy; urgency=low

  [ Agostino Russo ]
  * Allow disk images to be created externally (LP: #176019).
  * Added template required by autopartition-loop.

  [ Evan Dandrea ]
  * Add /host/boot to fstab (LP: #173659). Thanks Agostino Russo.

 -- Evan Dandrea <email address hidden> Fri, 18 Jan 2008 15:58:52 -0500