how to restore the backup of windows installation disk image

1

I had low disk space problem in windows 7 installation. And there was no way to increase the volume size of my C: drive. So I first backup the disks unix cat command. 

cat /dev/sdb1 > /media/tape8/sdb1_windows7.img

Then I repartitioned my hard disk. Give enough space (30GB) to windows drive (C:). After that I restore the image to the new 30GB partition by

cat /media/tape8/sdb1_windows7.img > /dev/sdb1

Now I try to boot windows. It doesn't boot. I try to repair by windows 7 installation disk. Tried Startup Repair, nothing changes.

My question is, on this scenario how do I boot my existing windows?

Shiplu Mokaddim

Posted 2011-12-17T08:43:04.153

Reputation: 647

That is quite an unusual way to back up a disk - dd might have worked better, or to use some bootable disk repartitioning tool. – Journeyman Geek – 2011-12-17T09:57:34.310

Yeah, DD was better. But dd is way too slow. and selecting optimal bsize is the key here. But I could find the proper size. I did the cat. – Shiplu Mokaddim – 2011-12-17T12:28:24.900

Answers

2

What I would try:

Shrink the partition back to original size (i hope you backed up your partition table) and put the data back. Hopefully this will boot. In Windows and use diskmgmt.msc to extend the volume to the free space ...

Fox

Posted 2011-12-17T08:43:04.153

Reputation: 516

Asked: 2011-12-17T08:43:04.153

Viewed: 152 times

Active: 2011-12-17T09:51:06.433