Bug 738010
| Summary: | Missing initramfs in grub stanza causes dom0 to panic during boot | ||||||
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| Product: | [Fedora] Fedora | Reporter: | Andy Burns <fedora> | ||||
| Component: | grub2 | Assignee: | Lubomir Rintel <lkundrak> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 16 | CC: | dennis, lkundrak, pjones | ||||
| Target Milestone: | --- | Keywords: | Patch | ||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2011-09-14 05:05:53 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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Further comments ... I can see in the /etc/grub.d/20_linux_xen script that there is code in place which *ought* to add the initramfs module, but for sone reason it is not being triggered, any clue why? Also the "BUG: scheduling while atomic: swapper/1/10000002" error still occurs, but is only feetingly displayed, provided the reootfs can be found. Created attachment 522992 [details]
Fix xen dom0 stanzas
I've figured out that the search list of possible initrd/ramfs names was missing the correct format, attached patch which makes the
/etc/grub.d/20_linux_xen
helper script do the right thing.
I believe I've encountered the same problem as this existing bug, my fix is identical, can this get actioned? *** This bug has been marked as a duplicate of bug 728775 *** |
Description of problem: ======================== Installed FC16alpha with updates as of 13-SEP-2011 boots sucessfully as bare metal, but by default fails to boot as dom0 If I manually add an extra "module" for the initramfs to the grub stanza for Fedora/Xen it boots OK. Version-Release number of selected component (if applicable): ============================================================= kernel.x86_64 3.1.0-0.rc5.git0.0.fc16 xen.x86_64 4.1.1-3.fc16 grub2.x86_64 1:1.99-5.fc16 How reproducible: ================= every time so far Steps to Reproduce: =================== 1. Select Xen 4.1.1 submenu from grub2 2. Select Fedora16 option and allow to boot Actual results: =============== Xen loads, kernel loads, then BUG: scheduling while atominc: swapper/1/10000002 Kernel pamnic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Pid: 1, comm: swapper Not tainted 3.1.0-0.rc5.git0.0.fc16.x86_64 Expected results: ================== Boots dom0 Additional info: ================ My last experience of Xen dom0 with Fedora was back on FC8, since then I've used Centos5 as dom0 with Xen 4.1.0 from gitco.de, obviously lots of relevant changes have occured since FC8 in terms of Kernel, grub2, xen/pvops, systemd that I may be unaware of, but it suggests a missing section from /etc/grub.d/20_linux_xen Default grub stanza that boots OK as baremetal ============================================== menuentry 'Linux, with Linux 3.1.0-0.rc5.git0.0.fc16.x86_64' --class gnu-linux --class gnu --class os { load_video set gfxpayload=keep insmod gzio insmod raid insmod mdraid09 insmod part_msdos insmod part_msdos insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set=root c9d6e8f9-1a41-452c-a4a0-26ecddc25dbb echo 'Loading Linux 3.1.0-0.rc5.git0.0.fc16.x86_64 ...' linux /vmlinuz-3.1.0-0.rc5.git0.0.fc16.x86_64 root=/dev/mapper/vgr1-fc16_root ro quiet rhgb echo 'Loading initial ramdisk ...' initrd /initramfs-3.1.0-0.rc5.git0.0.fc16.x86_64.img } Xen stanza that causes error ============================ submenu "Xen 4.1.1" { menuentry 'Linux, with Xen 4.1.1 and Linux 3.1.0-0.rc5.git0.0.fc16.x86_64' --class gnu-linux --class gnu --class os --class xen { insmod raid insmod mdraid09 insmod part_msdos insmod part_msdos insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set=root c9d6e8f9-1a41-452c-a4a0-26ecddc25dbb echo 'Loading Xen 4.1.1 ...' multiboot /xen-4.1.1.gz placeholder echo 'Loading Linux 3.1.0-0.rc5.git0.0.fc16.x86_64 ...' module /vmlinuz-3.1.0-0.rc5.git0.0.fc16.x86_64 placeholder root=/dev/mapper/vgr1-fc16_root ro quiet rhgb } Fixed Xen stanza ================ submenu "Xen 4.1.1" { menuentry 'Linux, with Xen 4.1.1 and Linux 3.1.0-0.rc5.git0.0.fc16.x86_64' --class gnu-linux --class gnu --class os --class xen { insmod raid insmod mdraid09 insmod part_msdos insmod part_msdos insmod ext2 set root='(md0)' search --no-floppy --fs-uuid --set=root c9d6e8f9-1a41-452c-a4a0-26ecddc25dbb echo 'Loading Xen 4.1.1 ...' multiboot /xen-4.1.1.gz placeholder echo 'Loading Linux 3.1.0-0.rc5.git0.0.fc16.x86_64 ...' module /vmlinuz-3.1.0-0.rc5.git0.0.fc16.x86_64 placeholder root=/dev/mapper/vgr1-fc16_root ro quiet rhgb echo 'Loading initial ramdisk ...' module /initramfs-3.1.0-0.rc5.git0.0.fc16.x86_64.img }