mv: can not move device file to another FS even root priv
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U - mv
- Dominant language
- Rust
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Description
run0 mknod devzero c 1 5
run0 uu-mv devzero /tmp
uu-mv: cannot move 'devzero' to '/tmp/devzero': Permission denied
run0 gnu-mv devzero /tmp # no error
It should be supported also for dir containing devzero (see #8586).
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the run0 mknod, uu-mv, and gnu-mv commands shown in the issue, then compare the behavior with the directory case described in #8586. Trace the mv command entry point and identify what happens when moving a device file across filesystems. Done means uu-mv matches gnu-mv for both a device file and a directory containing one.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- cli, operating-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100