Bug 102941
| Summary: | LTC4022-df FileSystem name doesn't match getmntent's mnt_fsname | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 2.1 | Reporter: | IBM Bug Proxy <bugproxy> |
| Component: | anaconda | Assignee: | Michael Fulbright <msf> |
| Status: | CLOSED NOTABUG | QA Contact: | Mike McLean <mikem> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 2.1 | CC: | msw |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2003-08-22 21:27:04 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: | |||
getmntent returns exactly what is in the fstab. We mount by label so that if your SCSI devices change the order they're in, you can still mount your filesystems. You could just as well get UUIDs of the filesystem when calling getmntent. Relying on it to return devices is broken. /proc/mounts will have the actual information on mounted filesystems or you can look at the code in util-linux/mount/get_label_uuid.c to see how mount determines the labels. changed:
What |Removed |Added
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CC| |mranweil.com
Status|REJECTED |CLOSED
------- Additional Comments From mranweil.com 2005-06-14 19:10 EDT -------
Non-duplicate rejected bug that's been rejected for over 6 months. Marking
closed, you can re-open if needed.
|
The following has be reported by IBM LTC: df FileSystem name doesn't match getmntent's mnt_fsname Please fill in each of the sections below. Hardware Environment: Intel 32 bit (doesn't really matter) Software Environment: RHAS 2.1 kernel 2.4.19 or RH 8.0, kernel 2.4.19. glibc 2.2.4-26 But, our program is compiled with the Intel compiler V7 Steps to Reproduce: 1.Do a df -k /myfilesystem You will get a file system with a name like "/dev/hdd6" 2.From within a C program, while ((m = getmntent(f)) != NULL) { if (!strcmp(m->mnt_dir, szDrive)) { j += sprintf(sb + j, "\t<name>%s</name>\n", m->mnt_fsname); } } If this is a Redhat system with Anaconda, you will get back a file system name in the format "LABEL=/myfs". Actual Results: df -k returns /dev/.. format getmntent's mnt_fsname returns LABEL=/... format Expected Results: I would prefer both return the /dev/... format so it is the same user experience in RedHat and SuSE. But, I need them to be consistent so we can match up the results. Additional Information: I am pretty sure that getmntent is pulling the information from /etc/fstab. RedHat's Anaconda uses the LABEL=/ format for file systems it sets up. I am not sure where df gets its information. If I can't get a fix, I need a work around. I need a shell command that given a mount point, I can get the FileSystem name that is in the LABEL= format OR A C library routine like getmntent that will return File System names like df does. A workaround needs to work on either SuSE or RH. And, yes, I believe I could change the values in /etc/fstab so getmntent works as expected. But, we are delivering a product that hopefully will be used by a lot of people with different levels of experience. I am NOT willing to recommend they all change their /etc/fstab. this is an install (anaconda) / file system issue which I think should be best addressed by Red Hat. SuSE does not have this problem. As Mary pointed out above, anaconda uses the LABEL= format (instead of /dev/ format) as it sets up file systems in /etc/fstab. Thanks.