Bug 1859432
| Summary: | [unshare] example in man page unshare(1) doesn't work | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | JianHong Yin <jiyin> |
| Component: | util-linux | Assignee: | Karel Zak <kzak> |
| Status: | CLOSED WONTFIX | QA Contact: | Radka Brychtova <rskvaril> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.9 | CC: | xzhou |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-01-22 07:27:04 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release. Therefore, it is being closed. If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened. |
Description of problem: example command line in man page unshare(1) does not work: ''' [root@rhel-7-9-latest ~]$ man unshare | grep -A 8 EXAMPLES EXAMPLES # unshare --fork --pid --mount-proc readlink /proc/self 1 Establish a PID namespace, ensure we're PID 1 in it against newly mounted procfs instance. $ unshare --map-root-user --user sh -c whoami root Establish a user namespace as an unprivileged user with a root user within it. [foo@rhel-7-9-latest ~]$ unshare --map-root-user --user sh -c whoami unshare: unshare failed: Invalid argument [foo@rhel-7-9-latest ~]$ lsb_release -sir RedHatEnterpriseServer 7.9 [foo@rhel-7-9-latest ~]$ uname -r 3.10.0-1157.el7.x86_64 [foo@rhel-7-9-latest ~]$ rpm -qf /usr/bin/unshare util-linux-2.23.2-65.el7.x86_64 ''' Version-Release number of selected component (if applicable): util-linux-2.23.2-65.el7.x86_64 How reproducible: always on RHEL-7 Steps to Reproduce: 1. #run the command line in man page unshare(1) unshare --map-root-user --user sh -c whoami Actual results: ''' [foo@rhel-7-9-latest ~]$ unshare --map-root-user --user sh -c whoami unshare: unshare failed: Invalid argument ''' Expected results: ''' [foo@rhel-8-3-latest ~]$ unshare --map-root-user --user sh -c whoami root ''' Additional info: it works fine on RHEL-8