Timeline for Clear unused space with zeros (ext3,ext4)
Current License: CC BY-SA 4.0
19 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 31, 2021 at 0:46 | comment | added | Jody Bruchon | I wrote a C program called zerohere that takes the opposite approach and sort of "perfects" the "crude dd method" and works on all operating systems. While the drawbacks mentioned are definitely worth considering, they are also not generally a practical problem with a user that is knowingly running such a tool. My zerohere program immediately deletes the zero file, so there is an extremely small time between all free space being full and being freed again. One last note: I never use ext* filesystems and I don't think anyone should when XFS exists. | |
| Jun 11, 2020 at 12:04 | history | edited | CommunityBot | Commonmark migration | |
| S Aug 24, 2019 at 10:35 | history | suggested | CommunityBot | CC BY-SA 4.0 | Added another example of usage |
| Aug 23, 2019 at 20:26 | review | Suggested edits | |||
| S Aug 24, 2019 at 10:35 | |||||
| Jun 11, 2019 at 12:51 | comment | added | Chris Davies | June 2019 - I've successfully used zerofree on an ext4 filesystem mounted read-only. (My Debian version refuses to attempt anything with a filesystem mounted read-write.) | |
| Nov 23, 2016 at 22:20 | comment | added | Hubbitus | Be careful - I lost ext4 filesystem using zerofree on Astralinux (Debian based)… | |
| Oct 14, 2016 at 16:33 | comment | added | endolith | zerofree page talks about a patch that lets you do "filesystem is mounted with the zerofree option" so that it always zeros out deleted files continuously. does this require recompiling the kernel then? is there an easier way to accomplish the same thing? | |
| Mar 4, 2016 at 10:10 | comment | added | jlh | This isn't equivalent to the crude dd method in the original question, since it doesn't work on mounted file systems. | |
| S Jan 3, 2016 at 1:17 | history | suggested | Gray | CC BY-SA 3.0 | turned computer text into indented normal text to read better |
| Jan 3, 2016 at 0:37 | review | Suggested edits | |||
| S Jan 3, 2016 at 1:17 | |||||
| Jan 5, 2014 at 2:27 | history | edited | slm♦ | CC BY-SA 3.0 | added 354 characters in body |
| Aug 5, 2012 at 21:47 | history | edited | Michael Mrozek | CC BY-SA 3.0 | added 65 characters in body |
| Aug 5, 2012 at 7:06 | history | edited | enzotib | CC BY-SA 3.0 | Leaved most part of the text in <pre> tags, because are not my words. |
| Aug 5, 2012 at 7:04 | history | rollback | enzotib | Rollback to Revision 1 | |
| Aug 4, 2012 at 19:28 | history | edited | Kyle Jones | CC BY-SA 3.0 | removed use of <pre> in favor of formatting the paragraphs properly. |
| Jul 29, 2012 at 16:02 | vote | accept | Grzegorz Wierzowiecki | ||
| Jul 29, 2012 at 14:12 | comment | added | enzotib | @GrzegorzWierzowiecki: yes, that is the page, but for debian and friends it is already in the repos. I used on a ext4 partition on a virtual disk to successively shrink the disk file image, and had no problem. | |
| Jul 29, 2012 at 14:08 | comment | added | Grzegorz Wierzowiecki | Is it official page of the tool intgat.tigress.co.uk/rmy/uml/index.html ? Do you think it's safe to use with ext4 ? | |
| Jul 29, 2012 at 11:45 | history | answered | enzotib | CC BY-SA 3.0 |