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Hy, Situation under Debian Linux, Kernel 2.6.26-2: On a Block-Device (/dev/vdb) is a partition-table specifying one partition (/dev/vdb1) which contains a ext3-filesystem. I want to remove the partition-table and make the partition-data directly available under (/dev/vdb).

The only possibility which came to my mind was to copy the data from the partition to another device, remove the partition-table and directly create the filesystem on /dev/vdb, mount it and copy the data back.

Is there a faster solution which doesnt involve such a long downtime?

Thanks

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1 Answer 1

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You can backup data directly copying blocks (dd if=/dev/vdb1 of=.../backup), then copy it back overwriting everything (dd if=.../backup of=/dev/vdb) and then resize filesystem to match device size directly with resize2fs or with a tool like parted or gparted.

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Is it really possible to directly save data on a block device, without using a partition? This would be completely new to me. I mean, with the ability to use it like any other device with partitions. –  Bobby Jan 29 '10 at 12:38
    
There is no difference between a whole block device and partition when it comes to reading or writing. Really. Everything you can do with a partition you can do with a block device too: creating filesystem, mounting, etc... –  whitequark Jan 29 '10 at 13:00
    
Well, didn't know that, thanks for the enlightenment! :) –  Bobby Jan 29 '10 at 13:12
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