Recovering a single partition from all-disk-backup

[.-fc-.]

Hi!

I backed up a full HDD with dd and split in this way:

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dd if=/dev/sdc | gzip -2 | split -d -b 3500M -  image-compress.img.gz.

Now I want to recover from this backup, but only a single partition!

Is this possible?

Thanks in advance!

[Whoever]

You have to gunzip it to a single file, then use losetup and kpartx to make the partitions accessible.

[.-fc-.]

Thanks for the answer!
Is there no way around gunzip'ing it? There is a reason I originally split it: The only drive with enough free space is a NTFS-drive

Can I recover it with kpartx as well?

[TrevorH]

NTFS is quite happy with files > 4GB, it's fat* that cannot handle it.

[.-fc-.]

Sorry my fault. Meant FAT of course.

Additionally the image is 400GB. When I unzip it, it will be over 500GB (size of the hdd). I don't have anyHDD with that much free space. Will any filesystem (except fat) be able to handle 500GB-files? Is there no other way?

[.-fc-.]

Okay, I organized a HDD with enough free space.
Just to be sure: I have many of these files: image-compress.img.gz.xx where xx ranges from 00 to 99
(ups, did the backup run out of numbers at that point??? The last file only has 3.9 instead of 4.1GB, so let's hope it was a lucky coincidence...
Will I be able to restore anything if it just wasn't?
Damn, how to prevent that? Would

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dd if=/dev/sdc | gzip -2 | split -a 4 -d -b 3500M -  image-compress.img.gz.

do a better job?)

Can I now gunzip this with

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gunzip image-compress.img.gz.* extracted_backup.dd

? Or this:

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cd path & cat image-compress.img.gz. | gunzip -d -c > extracted_backup.img

[.-fc-.]

Okay. This worked:

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cd path & cat image-compress.img.gz. | gunzip -d -c > image.img

Now I don't really know how to continue. I will try and research it tomorrow.