Bug 253837
| Summary: | md root boots fail without /etc/mdadm.conf | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Felix Bellaby <felixbellaby> |
| Component: | mkinitrd | Assignee: | Peter Jones <pjones> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 7 | CC: | triage |
| 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: | 2008-06-17 02:13:02 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: | |||
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Description
Felix Bellaby
2007-08-22 10:09:44 UTC
After a bit of reboot testing, it seems that an empty /etc/mdadm.conf is not
enough. The minimal /etc/mdadm.conf must contain one ARRAY line giving the
component devices.
A suitable file might be generated for the ${dev} array using:
awk '/'${dev}'/ { printf "%s","ARRAY /dev/'${dev}' devices="; for (i=5; $i; i++)
printf "%s%s","/dev/"gensub("\\[.*\\]","","",$i),$(i+1) ? "," : "\n"; }'
/proc/mdstat > /etc/mdadm.conf
Of course, a suitable /etc/mdadm.conf should be in place on systems that have
one created by anaconda, but it is unwise to rely on their existence within
mkinitrd as a system that has lost its /etc/mdadm.conf might become unbootable.
A better way to generate the appropriate /etc/mdadm.conf would be to use:
mdadm -Q --detail --brief ${dev} > $MNTIMAGE/etc/mdadm.conf
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