Image compression and drive size help
A partition and disk imaging/cloning program
Brought to you by:
steven_shiau
Menu
▾
▴
Hello, I have a few questions regarding how images are saved and how the compression is used.
In my particular instance, the target (saved-to) drive has 46GiB free (from 60 GB). The drive I want to save from is 75GiB total with two partitions of 43GiB used and 11.4GiB used. So this adds up to about 55GiB used that I want to save from. With compression, the image should be able to fit onto the target drive. However, I continue to get a disk full error while saving the image.
I am curious as how clonezilla uses compression (copy full used amount then compress or compress on the fly or something else?). Is there a way I can leverage a temporary storage space to get the compressed image onto the 46GiB free space? I have tried multiple compression settings with the same error.
Finally, I have read both FAQ's about _NOT_ saving an image from a larger drive to a smaller drive as well as how much space do I need when saving an image. Perhaps you can clarify if I am hitting either one of those problems? Thank you very much,
mike
Mike,
"In my particular instance, the target (saved-to) drive has 46GiB free (from 60 GB). The drive I want to save from is 75GiB total with two partitions of 43GiB used and 11.4GiB used. So this adds up to about 55GiB used that I want to save from. With compression, the image should be able to fit onto the target drive. However, I continue to get a disk full error while saving the image." ->
When you use Clonezilla live, after the Clonezilla image home (/home/partimag) is mounted, could you use "ctrl-alt-F2" to switch to console 2, then run:
1. sudo -i
2. df -ah
Then post the results ?
BTW, please describe every step you chose to save the image. It's easier for others to judge what the problem is there.
Clonezilla uses "pipe" to send the image to compress program, the default one is gzip. Therefore you do not have to use special temp space. The memory is the place.
Steven.
Steven, Thank you very much for the info. Here is a rundown of what I attempted.
>Boot into Clonezilla Live 1.2.2-14 (Start Clonezilla)
>device-image (local_dev, mount external usb, top directory)
>/home/partimag/ mounted (executed commands 1&2)
RESULTS:
Filesystem Size Used Avail Use% Mounted On
tmpfs 443M 0 443M 0% /lib/init/rw
proc 0 0 0 - /proc
sysfs 0 0 0 - /sys
procbususb 0 0 0 - /proc/bus/usb
udev 10M 92K 10M 1% /dev
tmpfs 443M 4.0K 443M 1% /dev/shm
devpts 0 0 0 - /dev/pts
rootfs 443M 6.5M 436M 2% /
/dev/hdd 101M 101M 0 100% /live/image
tmpfs 443M 6.5M 436M 2% /live/cow
tmpfs 443M 0 443M 0% /live
fusectl 0 0 0 - /sys/fs/fuse/connections
/dev/sda1 56G 10G 46G 18% /tmp/local-dev
/tmp/local-dev 56G 10G 46G 18% /home/partimag
Beginner mode
>savedisk (choose local drive, pick name)
>used command /opt/drbl/sbin/osc-sr -q2 -c -j2 -z1 -i 2000 -p true savedisk "2009-06-11-12-img" "hda"
Note: I have also tried expert mode using z2 compression and using 0 for block size. Will get back to you after this run is over
What's the file system of /dev/sda1 ?
You can use command:
mount
to show more mounting parameters at the same timing when you run "df -ah". Please post the results when you run the above command.
Steven.
Sorry for the delayed response... It finally compelted on beginner settings. The file system was ntfs. On the run that completed, there was very little storage left (<1 MB) on the external drive. I haven't tried a restore but I assume the image is good, I just wasn't getting the compression rate that I expected. Thank you for your help
"there was very little storage left (<1 MB) on the external drive" -> Did you see any error messages when you save the image ? You'd better to make sure there is no error messages so that you can sure the image was saved flawlessly.
Steven.
There were no error messages posted, the process completed 100%. Hopefully in the near future I can try a restore to verify, I will update this when that happens (may not be for a few weeks). Thanks again for looking into this
OK, please keep us posted.
Steven.