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4
votes
4answers
2k views

Best compression tool for full disk imaging that can saturate a USB 3 connection on low-powered machines?

I often work on full disk images, I often need to read and write full disk images on not so capable laptops using a USB-3 disk as my temporary medium. Duplicating a raw image is probably the fastest ...
1
vote
0answers
104 views

Can gzip change original file size?

/dev/sdf is a 32G SD. As far as I can tell, I had performed the following, but upon attempting to perform the final step and write to a SD, my file image appears to be one byte to large for the SD. ...
1
vote
0answers
28 views

Unexpected less gzip compression with -9 [duplicate]

I do have a USB mass storage device of 4GB, in which I had created two partition, both are of ext4. First partition is 1.5G and another one is 2.5G First partition is almost full while second one is ...
20
votes
2answers
3k views

Zipped hard drive image very big

I just made an image of a freshly installed dual boot (Ubuntu and Windows) using this command (which I've been using for a while for smaller images): dd if=/dev/sda | gzip > /mnt/drive.img.gz On ...
2
votes
3answers
700 views

Work with compressed dd images

How can I compress dd images and work with them at the same time? On Windows, I can mark it as compressed and work with it like a normal file. I can't re-partition, but I can mount some drives (For ...