[syslinux] problem booting from virtual disk, looking for pointers to the code

Chris Friesen chris.friesen at windriver.com
Thu Feb 22 08:23:26 PST 2018


Hi,

I'm booting an qemu VM from a virtual disk.  In the success case the virtual 
console shows something like this:

SYSLINUX 4.05 0x54f93f16 Copyright (C) 1994-2011 H. Peter Anvin et al
Loading vmlinuz.........
Loading initramfs.img...................................ready.
[ 0.000000] Initializing cgroup subsys cpuset
<etc>


In the failure case I'm seeing something like this:

SYSLINUX 4.05 0x54f93f16 Copyright (C) 1994-2011 H. Peter Anvin et al
Loading vmlinuz.........
Loading initramfs.img..........


and then it takes up to ~100 seconds for the VM to start running.  I suspect 
most of that time was spent trying to load this file.

My assumption is that this is likely an IO problem on the host. Would that make 
sense?

Also, can someone point me to the code that emits the dots while loading the file?

Thanks,
Chris


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