So I've been at this for a while and have been poking around for an answer for a few days, and figure it's about time to ask for help. I am running Ubuntu 10.10 in VMWare Fusion, and have downloaded a copy of the 3.2 kernel and built it with all default settings. When I try to boot into the new kernel after a call to make install, I get the following message:
[ 1.581916] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 1.582260] Pid: 1, comm: swapper/0 Not tainted 3.2.4 #1 [ 1.582444] Call Trace: [ 1.582552] [<ffffffff815e7447>] panic+0x91/0x1a7 [ 1.582666] [<ffffffff815e75c5>] ? printk+0x68/0x6b [ 1.582799] [<ffffffff81ad2152>] mount_block_root+0x1ea/0x29e [ 1.582929] [<ffffffff81ad225c>] mount_root+0x56/0x5a [ 1.583047] [<ffffffff81ad23d0>] prepare_namespace+0x170/0x1a9 [ 1.583178] [<ffffffff81ad16f7>] kernel_init+0x144/0x153 [ 1.583304] [<ffffffff815f45f4>] kernel_thread_helper+0x4/0x10 [ 1.583436] [<ffffffff81ad15b3>] ? parse_early_options+0x20/0x20 [ 1.583570] [<ffffffff815f45f0>] ? gs_change+0x13/0x13
Which used to appear on every reboot. I found that if I changed the VM's harddrive type, I could get GRUB to boot at least, but the message above comes up if I try to load the newly compiled kernel. The old kernel works as before. I have checked and I have compiled in support for ext4, which is the fs my root is running. I have also tried generating an initrd file with a call to "sudo update-initramfs -c -k 3.2.4", but to no avail.
The compilation, I think, was pretty standard:
make menuconfig make make modules_install make install update-grub reboot
Were the general steps. In terms of options, I basically took the default on everything. In case it's pertinent, my fstab looks like this:
proc /proc proc nodev,noexec,nosuid 0 0 #UUID=c75eddd9-f4fa-49be-927b-8c2da7074135 / ext4 errors=remount-ro 0 1 /dev/sda1 / ext4 defaults 0 1 #UUID=5bc6915e-fdfa-479a-885f-ea03cb14f9cd none swap sw 0 0 /dev/sda5 none swap sw 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
Where I've tried it with both UUID's and /dev/sd* notation. Any help or advice would be much appreciated, as it's gotten quite frustrating.