I met the similar case once, chroot from a livecd and rm /tmp/* reinstall linux, reinstall syslinux(my bootloader) and syslinux-install_update -iam solved that .
- [arch-general] Kernel panic at boot after hard reset: not sy... Paul Hervot
- Re: [arch-general] Kernel panic at boot after hard rese... 施不二
- Re: [arch-general] Kernel panic at boot after hard rese... Rodrigo Rivas
- Re: [arch-general] Kernel panic at boot after hard ... Paul Hervot
- Re: [arch-general] Kernel panic at boot after h... Rodrigo Rivas
- Re: [arch-general] Kernel panic at boot aft... Paul Hervot

