Created attachment 695537 [details] pic of panic Description of problem: I updated my laptop to 3.7.6-201 and rebooted. Twice it panic'ed with "kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)". I suspect this is related to my disk being encrypted (LVM with <swap> and / being encrypted). Booting into 3.7.5-201 works fine. Crappy cellphone pic of panic is attached. Version-Release number of selected component (if applicable): Works: kernel.x86_64 ver 3.7.5-201.fc18 Panics: kernel.x86_64 ver 3.7.6-201.fc18 How reproducible: 100% (on two tries) Steps to Reproduce: 1. Install kernel 2. Have encrypted LV for / and <swap> 3. Boot Actual results: panics Expected results: boots Additional info:
Do you have an initramfs file in /boot for 3.7.6-201? If so, does it look to be of similar size as 3.7.5-201? This is basically the error the kernel gives when it can't find the rootfs that has been specified. Without seeing the full boot logs, it's difficult to say what went wrong. However, I don't believe there were any changes in this area of the kernel between 3.7.5 and 3.7.6, so it could very well be a problem in the generated initramfs.
I've got the same issue. The initramfs files are similar in size. -rw-------. 1 root root 32092348 Jan 27 12:43 initramfs-3.7.4-204.fc18.x86_64.img -rw-------. 1 root root 32045708 Feb 14 11:19 initramfs-3.7.6-201.fc18.x86_64.img -Jack
Is this still an issue with 3.8.2 kernels?
Closing this bug as it has been more than 2 weeks without a response. I assume the issue is no longer occurring. Please feel free to reopen if this is not the case.