All Questions
Tagged with compression dd
7
questions
1
vote
1answer
363 views
How can I completely zero out all free blocks (deleted files)
I'm making a backup of Raspbian (I know, this isn't the Raspberry Pi SE, but it's a Linux question and it probably isn't just Raspbian that has this problem and BTW, the size of the drive is 128GB). ...
9
votes
2answers
14k views
compressing and decompressing dd image - zstd instead of gzip
Earlier I was using fsarchiver to create compressed partition image. Due to some weird behavior I am choosing to replace it with dd.
However, I like how fsarchiver compressed with zstd.
So, I ...
1
vote
0answers
117 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. ...
24
votes
5answers
9k views
On-the-fly stream compression that doesn't spill over into hardware resources?
I have 200 GB free disk space, 16 GB of RAM (of which ~1 GB is occupied by the desktop and kernel) and 6 GB of swap.
I have a 240 GB external SSD, with 70 GB used1 and the rest free, which I need to ...
2
votes
0answers
302 views
How to extract and stitch together a multipart tar arcvhive without the initial file
I have a large folder with multi part tar files each 2gb in size, file.partaa through file.partgy, however I am missing the initial tar file. Is there any way that I can extract each part ...
1
vote
2answers
929 views
Debian: Create compressed Harddrive for copy
On my Debian system I have a box with certain configuration settings that I like but I've had to change them continuously. There have been times that I've gotten into a some-what irreversible position....
83
votes
6answers
90k views
Is it possible to mount a gzip compressed dd image on the fly?
I like create an image backup for the first time I'm backing up a system. After this first time I use rsync to do incremental backups.
My usual image backup is as follows:
Mount and zero out the ...
