Bug 985160
| Summary: | dracut ignores cmdline root= path | ||||||||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | Alex Williamson <alex.williamson> | ||||||
| Component: | dracut | Assignee: | dracut-maint | ||||||
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Release Test Team <release-test-team-automation> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 7.0 | CC: | dracut-maint-list, harald, jstodola | ||||||
| Target Milestone: | rc | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | dracut-033-144.el7 | Doc Type: | Bug Fix | ||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2014-06-13 11:31:15 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: | |||||||||
| Attachments: |
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To get to the system again, boot with the rescue entry, change root=, run # dracut --regenerate-all -f And retry with the normal grub entry, with dracut-031-4.git20130731.el7, where this is hopefully fixed. # dracut -f Created attachment 864198 [details]
rdsosreport.txt
Retested with dracut-033-124.el7, but system doesn't boot after changing LV name with rootfs:
[root@localhost ~]# lvrename rhel root rhel7
Renamed "root" to "rhel7" in volume group "rhel"
[root@localhost ~]#
modifying kernel cmdline and reboot:
dracut:/# cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.10.0-86.el7.x86_64 root=/dev/mapper/rhel-rhel7 ro rd.lvm.lv=rhel/rhel7 vconsole.font=latarcyrheb-sun16 rd.lvm.lv=rhel/swap vconsole.keymap=us crashkernel=auto rhgb quiet LANG=en_US.UTF-8 rd.debug console=ttyS0
dracut:/# lvm lvs
LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert
rhel7 rhel -wi-a----- 17.51g
swap rhel -wi-a----- 2.00g
dracut:/#
rdsosreport.txt is attached.
please retry with dracut-033-137.el7 Retested with dracut-033-137.el7, system booted correctly after changing root=, rd.lvm.lv= and updating /etc/fstab with the new LV name. Retested with dracut-033-145.el7, this issue is fixed. Moving to VERIFIED. This request was resolved in Red Hat Enterprise Linux 7.0. Contact your manager or support representative in case you have further questions about the request. |
Created attachment 774574 [details] screenshot Description of problem: RHEL7 decided it wanted to make a logical volume named "root" during install, which doesn't match my naming scheme at all. Post install I renamed the logical volume to lv_rhel7 and updated the cmdline in grub. Dracut doesn't seem to use care what root= value is passed on the cmdline and still look for the, now non-existent, root logical volume... What's the point of root=? Version-Release number of selected component (if applicable): rhel7 How reproducible: 100% Steps to Reproduce: 1. Rename your root logical volume 2. Update grub cmdline to reflect the new name 3. Attempt to reboot Actual results: See attached image Expected results: root= should override whatever path is embedded in the initrd. Additional info: