Bug 85595
| Summary: | terminfo command for serial console broken | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Dr. Tilmann Bubeck <tilmann> | ||||
| Component: | grub | Assignee: | Jeremy Katz <katzj> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | |||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 8.0 | ||||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2003-04-02 05:53:00 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: | |||||||
| Attachments: |
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Created attachment 90467 [details]
Patch to correct the problem.
Added in 0.93-5 |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2) Gecko/20021203 Description of problem: Unfortunately the terminfo command to define terminfo sequences for serial console is broken. The problem is, that grub does not "unescape" the read terminfo sequences from "grub.conf". E.g. if "grub.conf" contains \e (two characters), then this has to get ESC (a single character 0x1b), but doesn't. The result is, that the terminal will not output the single ESC character but will output \e (two characters). No escape sequence will work. Another problem is, that the terminfo command without any arguments should output the current settings but doesn't "escape" the current terminfo sequences. So the terminal will _execute_ the terminfo sequence instead of displaying them as a ascii text. The last thing is, that the size of the terminfo structure entries is maybe too small. It is currently 32 bytes, but some terminfo sequences are 29 bytes. Probably some are longer. So I would suggest to make them at least 40 bytes. Please find enclosed a patch to fix all of these 3 problems. [This message was sent to the grub maintainers, too. However, rhat should fix this problem otherwise no serial console apart from vt100 will work]. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Attacha a serial console and use anything except vt100 2. define the terminfo command 3. see, that it doesn't work Actual Results: terminal does not use escape sequences. GRUB unusable. Expected Results: Screen ok. Additional info: