Bug 240859
| Summary: | LiveCD boot failure on pata DVD-RW drive | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Michael Forrest <mef> | ||||
| Component: | LiveCD | Assignee: | David Zeuthen <davidz> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | David Lawrence <dkl> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | rawhide | CC: | dcantrell, katzj, mclasen | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| URL: | http://smolt.fedoraproject.org/show?UUID=7ffea52c-f70c-4688-b162-2df17100316b | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2007-05-22 22:54:47 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 155159 [details]
dmesg output after attempting mount of /dev/sdc
Step to reproduce #2 was meant to be "Cold boot machine" ! If you manually load sr_mod at this point, does /dev/root exist and things then work? Yes, if I perform: modprobe sr_mod the /dev/root symlink magically appears to a (newly attached) "sr0" device. I then exit that shell and the LiveCD fully boots to a lovely hot air ballon login screen. Thanks very much Jeremy, you rock! |
Description of problem: f7t4 liveCD fails to fully boot using a DVD-RW as the boot device. After inialising a number of devices, the kernel hangs for approximately one minute and then produces the message: WARNING: Cannot find root file system! and drops to a root prompt for user to contruct symlink to /dev/root. dmesg reports finding the DVD-RW device. but when /dev/sdc is manually created with mknod (blk dev maj:8 min:32) and then mounted with: mount -t iso9660 /dev/sdc /mnt the mount fails reporting: mount: /dev/sdc is not a valid block device after udev creates /dev/sda{1,2} and /dev/sdb{1 .. 15}. (see dmesg attqched) there is no /dev/sdc is usable for /dev/root. Has DVD driver code been deliberately excluded from the f7t4 liveCD kernel? The LiveCD was burnt with a fully functioning and patched fc6 install - no problems with the DVD-RWdevice itself. LiveCD just won't boot! Tt is my only way of installing (no CD drive attached to the machine). Version-Release number of selected component (if applicable): f7t4 i386 LiveCD How reproducible: Always Steps to Reproduce: 1. Insert LiveCD into DVD-RW (only device which can read the CD) 2. Cols boot machine. 3. vmlinuz and initrd.img loaded, but cannot find root partition. Actual results: Dumped into a shell with nothing to link /dev/root to. Expected results: A fully booted LiveCD Additional info: My smolt output for this machine (from fc6, no hardware has changed): http://smolt.fedoraproject.org/show?UUID=7ffea52c-f70c-4688-b162-2df17100316b lsmod output of f7t4 kernel: Module Size Used by ext3 126841 1 jbd 61473 1 ext3 mbcache 12741 1 ext3 sd_mod 24513 2 ata_generic 12357 0 ehci_hcd 36185 0 uhci_hcd 27737 0 pata_via 15557 1 sata_via 15685 0 libata 116965 3 ata_generic,pata_via,sata_via scsi_mod 141357 2 sd_mod,libata