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How to make a read-only disk writable?

ne flag

I am using Ubuntu 22.10 as administrator.

I mounted an image file (raw, ext4) as a disk but however I had changed the "Permissions" of the disk (to "create and delete files", etc), it was read-only.

How to change it so that it can be writable?

Thanks.

user10489 avatar
in flag
need more detail. How did you mount it? fstab options? Did you use chmod or chattr?
wenyuan avatar
ne flag
It was mountable after fsck and e2fsck. chmod did not work.
user10489 avatar
in flag
fsck calls e2fsck, it's silly to run both. "chmod did not work" is meaningless. Supply a real error and include it in your question. You say you "changed permissions" -- how did you do that? These details need to be in your question.
wenyuan avatar
ne flag
Right-click on the file / disk -> Select "Properties" -> Click on "Permissions“. Thanks for being constructive. The purpose of this thread is to find the solution to solve the issue.
user10489 avatar
in flag
You should add that to your question. Adding output form `ls -l` on the item you right clicked on might help too. You can probably just repeat what you did and add the permission back.
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