Please send the folowup question to the group as well. I don't know how to do it in Windows. Glad to help, Lee -----Original Message----- From: cmonster@icehouse.net [mailto:cmonster@icehouse.net] Sent: Wednesday, July 28, 2004 10:47 PM To: Lee Kransen Subject: RE: [Udpcast] Image size bigger that actual space used Thanks for the reply. I kind of thought it might something like that. These are widows systems I am imaging. How would I zero-ize the drive it windows? Quoting Lee Kransen <lee@servision.net>:
1. Although 2.5/20 is currently in use it could be that much of the rest of the 20GB was once written to and now does not contain strictly 0000000's. In this case the compression will not be as great as it could be. You may want to use the suggested procedure for Zero-izing your disk before turning it into a compressed image. This will have to be done for each partition on the disk.
----------------------------------------------- On the live system, just create a huge file:
dd if=/dev/zero of=filler-file
After a while, the dd will error out with a "disk full" error.
Then, do a couple of syncs, and remove the file.
sync sync rm filler-file -----------------------------------------------
2. lzop is designed for speed and not compression. Try setting the compression level to -7, -8, or -9 for better compression.
Lee
-----Original Message----- From: udpcast-bounces@udpcast.linux.lu [mailto:udpcast-bounces@udpcast.linux.lu] On Behalf Of cmonster@icehouse.net Sent: Tuesday, July 27, 2004 4:36 PM I am having a problem with the compressed size of the drive being far larger than the size that is really used (I.E. 2.5 gigs used but image size of 9 gigs). I found a program called sdelete and tried using it to cleanise the unused space. But every time I run the udpcast to remake the image after using sdelete it is even bigger than before! Any one have any ideas?
To: udpcast@udpcast.linux.lu Subject: [Udpcast] Image size bigger that actual space used
I have been trying to send an image to my server. The hard drive on the computer that I am sending from is 20 gig with 2.5 used. I turn on lzop compession and send the image to the server. But the image file endes up being 8.2 gigs. Any idea why it would be that big?
Thanks again for your help Kevin _______________________________________________ Udpcast mailing list Udpcast@udpcast.linux.lu http://udpcast.linux.lu/mailman/listinfo/udpcast
There are some hints on the g4u website: http://www.feyrer.de/g4u/#shrinkimg There is a perl script and an exe to do this from Windows. --Donald Teed On Thu, 29 Jul 2004 cmonster@icehouse.net wrote:
Please send the folowup question to the group as well. I don't know how to do it in Windows. Glad to help,
Lee
-----Original Message----- From: cmonster@icehouse.net [mailto:cmonster@icehouse.net] Sent: Wednesday, July 28, 2004 10:47 PM To: Lee Kransen Subject: RE: [Udpcast] Image size bigger that actual space used
Thanks for the reply. I kind of thought it might something like that. These are widows systems I am imaging. How would I zero-ize the drive it windows?
Quoting Lee Kransen <lee@servision.net>:
1. Although 2.5/20 is currently in use it could be that much of the rest of the 20GB was once written to and now does not contain strictly 0000000's. In this case the compression will not be as great as it could be. You may want to use the suggested procedure for Zero-izing your disk before turning it into a compressed image. This will have to be done for each partition on the disk.
----------------------------------------------- On the live system, just create a huge file:
dd if=/dev/zero of=filler-file
After a while, the dd will error out with a "disk full" error.
Then, do a couple of syncs, and remove the file.
sync sync rm filler-file -----------------------------------------------
2. lzop is designed for speed and not compression. Try setting the compression level to -7, -8, or -9 for better compression.
Lee
-----Original Message----- From: udpcast-bounces@udpcast.linux.lu [mailto:udpcast-bounces@udpcast.linux.lu] On Behalf Of cmonster@icehouse.net Sent: Tuesday, July 27, 2004 4:36 PM I am having a problem with the compressed size of the drive being far larger than the size that is really used (I.E. 2.5 gigs used but image size of 9 gigs). I found a program called sdelete and tried using it to cleanise the unused space. But every time I run the udpcast to remake the image after using sdelete it is even bigger than before! Any one have any ideas?
To: udpcast@udpcast.linux.lu Subject: [Udpcast] Image size bigger that actual space used
I have been trying to send an image to my server. The hard drive on the computer that I am sending from is 20 gig with 2.5 used. I turn on lzop compession and send the image to the server. But the image file endes up being 8.2 gigs. Any idea why it would be that big?
Thanks again for your help Kevin _______________________________________________ Udpcast mailing list Udpcast@udpcast.linux.lu http://udpcast.linux.lu/mailman/listinfo/udpcast
_______________________________________________ Udpcast mailing list Udpcast@udpcast.linux.lu http://udpcast.linux.lu/mailman/listinfo/udpcast
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cmonster＠icehouse.net -
Donald Teed