Booting with SYSLINUX on Loopback Device: Kernel Panic - Where to Start?

[Valdis.Kletnieks at vt.edu]

On Fri, 04 Mar 2016 16:27:35 -0700, Patrick said:

> [    4.413323] No filesystem could mount root, tried:  ext3 ext2 ext4 vfat fuseblk
> [    4.415310] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,0)
>
> So, I think maybe now the kernel is missing some things it needs on
> /dev/sda.

What filesystem is on the /dev/sda image that qemu is using?  You'll need to
either build your kernel with the support for that built into the kernel,
or an initrd that modprobes the filesystem module, and then mounts the
filesystem (then there's a few fun and games involved in pivoting from
the ram filesystem the initrd is using as root, to the disk image filesystem
that you want as the root filesystem after boot).
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