Bug 706147
| Summary: | /etc/shells should contain dash | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Petr Šabata <psabata> |
| Component: | dash | Assignee: | Petr Pisar <ppisar> |
| Status: | CLOSED ERRATA | QA Contact: | Miroslav Hradílek <mhradile> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 6.0 | CC: | hafflys, huzaifas, maxim, mhradile, ovasik, ppisar, psabata |
| Target Milestone: | rc | Keywords: | EasyFix, Patch |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | All | ||
| Whiteboard: | |||
| Fixed In Version: | dash-0.5.5.1-4.el6 | Doc Type: | Bug Fix |
| Doc Text: |
Cause:
User with /bin/dash log-in shell tries to log in.
Consequence:
Use cannot log in because /bin/dash is not allowed log-in
shell.
Fix:
When installing or upgrading dash package, /bin/dash is
added into list of allowed log-in shells (/etc/shells).
When uninstalling the package, the shell is removed from
the from list.
Result:
Users with /bin/dash log-in shell can log into the system.
|
Story Points: | --- |
| Clone Of: | 706138 | Environment: | |
| Last Closed: | 2012-10-17 07:26:09 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 706138 | ||
| Bug Blocks: | 836169 | ||
|
Description
Petr Šabata
2011-05-19 15:50:39 UTC
Fixed in Fedora already (0.5.6-4 in f15+, 0.5.6-3 in f14). Possibly in fixing this problem another was introduced. I just upgraded from Fedora 15 to Fedora 16 using preupgrade. I went to start a VirtualBox session, and it complained that it could not do so. This was the error message: ExtPackInst ExtPack: enmReason=1 iStatus=127 stderr='The value for the SHELL variable was not found the /etc/shells file I looked at the /etc/shells file and found that /bin/bash was missing. However, /bin/dash was in the file twice. Once I changed the first instance to /bin/bash, VirtualBox behaved fine. Please check the file as I am sure that it may be causing problems to others. I had not previously had any problem with this, so it had to have come in with the F16 upgrade. Stephen, this is not a Fedora bug, I suppose you wanted to comment on 706138. Anyway, /bin/dash was added to /etc/shells in F14 and doesn't touch /bin/bash record (or any other) at all. All that is handled in dash %post and %postun scriptlets. I also don't have /etc/bash in /etc/shells but I have /etc/dash there just once. The file belongs to the 'setup' package. Please, file a bug report with it. What is also weird is bash users can login into the system although the record is missing... Default /etc/shells from setup contains just: /bin/sh /bin/bash /sbin/nologin The rest of the shells is added by other packages. It would probably make sense to add the additional shells /bin/tcsh /bin/csh /bin/ksh /bin/zsh /bin/dash and maybe others to the default /etc/shells file - as I don't like modifications of default system files by other packages... Thanks. Done. Bug is 753780. Interesting though, the /etc/shells on my netbook contained just /sbin/nologin /bin/dash /bin/dash No /bin/sh or any other entry. The desktop, before I fixed it contained: /sbin/nologin /bin/dash /bin/zsh /bin/ksh /bin/dash I changed the first /bin/dash to /bin/bash. This information was submitted as part of 753780, so I hope to see this fixed quickly. Both bash and dash should be fixed (in Fedora) now. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-1381.html |