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From: hume.spamfilter on 3 Jul 2010 06:49 hadi motamedi <motamedi24(a)gmail.com> wrote: > Thank you very much for your reply. The hard disk capacity is as 40GB > and no slice is occupied with say more than 40% of data . According to You're copying the disk image, not the data on the disk. If you have a 40G disk, you'll have a 40G image. A disk block does not cease to exist just because it doesn't have useful data on it. -- Brandon Hume - hume -> BOFH.Ca, http://WWW.BOFH.Ca/
From: hume.spamfilter on 3 Jul 2010 06:50 hadi motamedi <motamedi24(a)gmail.com> wrote: > #dd if=/dev/rdsk/c0t0d0s2 bs=512 count=1966080 |gzip -c >/tmp/ > solaris8.disk-pt1 > #dd if=/dev/rdsk/c0t0d0s2 bs=512 count=1966080 skip=1966080 |gzip -c >/ > tmp/solaris8.disk-pt2 Yes, that will likely work better. And if you have a 40G disk, you'll have somewhere between 40 and 45 pieces. -- Brandon Hume - hume -> BOFH.Ca, http://WWW.BOFH.Ca/
From: hadi motamedi on 3 Jul 2010 06:52 > > You're copying the disk image, not the data on the disk. If you have a > 40G disk, you'll have a 40G image. A disk block does not cease to exist > just because it doesn't have useful data on it. > Sorry. I didn't get the point clearly. I wanted to make a bootable image . So you mean this procedure does not work this way ?
From: hume.spamfilter on 3 Jul 2010 07:03 hadi motamedi <motamedi24(a)gmail.com> wrote: > Sorry. I didn't get the point clearly. I wanted to make a bootable > image . So you mean this procedure does not work this way ? If you apply the procedure properly, it MAY work. I have no idea what software you're trying to use, and everything I've read makes me think your situation is ridiculous. But if you want to make a disk image, you can't leave out disk blocks just because they don't have useful data on them, otherwise you mess up pointers on the disk. If you have a 40G disk but only 2G of it is filled, then you STILL need to copy all 40G because otherwise you'll mess up the image. -- Brandon Hume - hume -> BOFH.Ca, http://WWW.BOFH.Ca/
From: hadi motamedi on 3 Jul 2010 07:26
> > If you apply the procedure properly, it MAY work. I have no idea what > software you're trying to use, and everything I've read makes me think your > situation is ridiculous. > > But if you want to make a disk image, you can't leave out disk blocks just > because they don't have useful data on them, otherwise you mess up pointers > on the disk. If you have a 40G disk but only 2G of it is filled, then you > STILL need to copy all 40G because otherwise you'll mess up the image. Thank you very much. I got the point . |