I've been having a hell of a time figuring this one out. I have an amazon linux distro running on a m1.small EC2 instance, EBS storage, and it's been working great for about 8 months. I'd like to scale this up to an m1.medium instance, however nothing I do seems to work. It always hangs with some sort of error in the system log. This error has changed from a kernel panic (before updating everything) to the following:
Xen Minimal OS! start_info: 0xd27000(VA) nr_pages: 0xf0000 shared_inf: 0xbf25e000(MA) pt_base: 0xd2a000(VA) nr_pt_frames: 0xb mfn_list: 0x967000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: root=/dev/sda1 ro 4 stack: 0x946780-0x966780 MM: Init _text: 0x0(VA) _etext: 0x621f5(VA) _erodata: 0x76000(VA) _edata: 0x7b6d4(VA) stack start: 0x946780(VA) _end: 0x966d34(VA) start_pfn: d38 max_pfn: afffd Mapping memory range 0x1000000 - 0xafffd000 setting 0x0-0x76000 readonly skipped 0x1000 MM: Initialise page allocator for 12b2000(12b2000)-0(afffd000) MM: done Demand map pfns at afffe000-bfffe000. Heap resides at bffff000-fffff000. Initialising timer interface Initialising console ... done. gnttab_table mapped at 0xafffe000. Initialising scheduler Thread "Idle": pointer: 0xbffff008, stack: 0x1390000 Initialising xenbus Thread "xenstore": pointer: 0xbffff478, stack: 0x13a0000 Dummy main: start_info=0x966880 Thread "main": pointer: 0xbffff8e8, stack: 0x13b0000 "main" "root=/dev/sda1" "ro" "4" vbd 2049 is hd0 ******************* BLKFRONT for device/vbd/2049 ********** backend at /local/domain/0/backend/vbd/17/2049 Failed to read /local/domain/0/backend/vbd/17/2049/feature-barrier. Failed to read /local/domain/0/backend/vbd/17/2049/feature-flush-cache. 16777216 sectors of 0 bytes ************************** Press `ESC' to enter the menu... 2 Press `ESC' to enter the menu... 1 Press `ESC' to enter the menu... 0 [H [J Booting 'Amazon Linux 2012.03 (3.2.28-45.62.amzn1.i686)' root (hd0) Filesystem type is ext2fs, using whole disk kernel /boot/vmlinuz-3.2.28-45.62.amzn1.i686 root=LABEL=/ console=hvc0 LANG=en_ US.UTF-8 KEYTABLE=us initrd /boot/initramfs-3.2.28-45.62.amzn1.i686.img close blk: backend at /local/domain/0/backend/vbd/17/2049
I've seen a bunch of posts over at the AWS dev support forum, but amazon won't give any answers unless the image being used is an amazon image. The image I'm using is an image of a machine that was using an amazon image.
I am using the same kernel (aki-407d9529), and ari is set to default. Any ideas as to what might be causing this, or how to get the contents of this server running on an m1.medium instance?