Can't Boot Slack 12 From Fresh Install - Kernel Panic
I'm trying to install Slackware 12.0 to an external USB hard drive. (Windows XP is on my internal hard drive.) The USB drive is partitioned with sdb1 as the root partition, sdb2 is a swap partition, and sdb3 is another partition (for /home and stuff). Both data partitions are formatted with ReiserFS, and sdb1 has the boot flag set.
I installed Slackware using mostly the defaults, including using LILO as the bootloader. I installed it to the MBR of my primary hard drive, so now when the computer starts up I have to choose between Windows and Linux to boot into. So far, so good.
Booting into Windows works fine, luckily. But when I try to boot Slackware, I get the following error message:
vfs: cannot open root device "801" or unknown-block(8,1)
Please append a correct "root=" boot option.
Kernel Panic - not syncing: vfs: unable to mount rootfs on unknown-block(8,1)
How can I get it to boot to Slackware?