Ubuntu – Bleachbit – free space filled up

bleachbitdisk-usage

I installed Bleachbit (downloaded from official Ubuntu Software store) and I started free space wipe but when it ended all my free space was filled (0 bytes remain) so I reinstalled Ubuntu and now I want to wipe free space but I'm afraid that the same will happen again.

Can someone explain to me how to avoid this?

Best Answer

I'm not sure which version of bleachbit is ok, however as you said it's ok for you to use another program, I'm going to suggest another cool small utility for this purpose.

To wipe free space I recommend sfill program from secure-delete package.

Installation:

sudo apt install secure-delete

It's got a bunch of cool stuff:

$ dpkg -L secure-delete | grep -i /bin/

/usr/bin/sswap
/usr/bin/sdmem
/usr/bin/sfill
/usr/bin/srm

sfill is for wiping free space, usage:

sudo sfill /

It will write the whole disk 38 times. you can use switches like -f to make this process a little bit faster. or for each -l it will decrease the number of writes.

For example

sudo sfill -fll /

Wipes the whole disk one times and fast.

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