linode won't boot /bin/sh devfs no such file or directory

Hi,

I rebooted my linode today and now it won't come back up. There is kernel panic on bootup with the following message that a helpful support rep was able to provide. I hadn't rebooted my linode in about 2 months, running Arch Linux. The only change that I made to init was switching to systemd from initscripts last year and had done a couple of reboots since with no issues. Would really appreciate if someone can throw a pointer as to where I can start with this. I tried a different kernel also (3.6.5), which was the last kernel i was using but no luck.

/bin/sh: nodevfs: No such file or directory
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00

Pid: 1, comm: sh Not tainted 3.7.10-linode49 #2
Call Trace:
[<c078a017>] ? panic+0x87/0x177
[<c013795a>] ? forget_original_parent+0x32a/0x340
[<c015b569>] ? sched_move_task+0x89/0x110
[<c013797e>] ? exit_notify+0xe/0x120
[<c0137c13>] ? do_exit+0x183/0x3a0
[<c01d4f30>] ? vfs_write+0x140/0x170
[<c0137e6c>] ? do_group_exit+0x3c/0xa0
[<c0137ee1>] ? sys_exit_group+0x11/0x20
[<c078c844>] ? syscall_call+0x7/0xb
[<c0780000>] ? klist_put+0x20/0x80</c0780000></c078c844></c0137ee1></c0137e6c></c01d4f30></c0137c13></c013797e></c015b569></c013795a></c078a017> 

As far as package upgrades go, I have sifted through pacman.log and only notice these packages that could have something to do with it, maybe filesystem/glibc package that could be an issue. But I am not sure. :( Any help appreciated, thanks in advance.

[2013-02-17 10:52] upgraded linux-api-headers (3.7.1-1 -> 3.7.4-1)
[2013-02-17 10:53] upgraded filesystem (2012.12-1 -> 2013.01-3)
[2013-02-17 10:53] Generating locales...
[2013-02-17 10:53] en_US.UTF-8... done
[2013-02-17 10:53] en_US.ISO-8859-1... done
[2013-02-17 10:53] Generation complete.
[2013-02-17 10:53] upgraded glibc (2.17-1 -> 2.17-3) 
[2013-02-17 10:53] upgraded file (5.11-1 -> 5.11-2)
[2013-02-17 10:53] upgraded findutils (4.4.2-4 -> 4.4.2-5)
[2013-02-17 10:53] upgraded gcc (4.7.2-3 -> 4.7.2-4)
[2013-02-17 10:53] upgraded libksba (1.2.0-1 -> 1.2.0-3)
[2013-02-17 10:53] upgraded gnupg (2.0.19-4 -> 2.0.19-6)
[2013-02-17 10:53] upgraded grep (2.14-1 -> 2.14-2)
[2013-02-17 10:53] upgraded groff (1.21-2 -> 1.22.2-2)
[2013-02-17 10:53] upgraded gzip (1.5-1 -> 1.5-3)
[2013-02-17 10:53] upgraded hwids (20121203-1 -> 20130214-1) 

fstab

 GNU nano 2.2.6 File: etc/fstab
# /etc/fstab: static file system information.
#
# <file system=""><mount point=""><type><options><dump><pass>proc                     /proc         proc   defaults   0      0
/dev/xvda                /             ext3   noatime,errors=remount-ro    0   1
/dev/xvdb                none          swap   sw         0      0</pass></dump></options></type></mount></file>