While upgrading from 10.10 to 11.04 I got an error code 1 from post installation of initramfs_tools and a message my system would possibly be in an unusable state. After rebooting the system stopped saying drive /boot was not ready. After some research I found out that the name of my hard disk partitions had changed. I have a RAID and the partitions mounted in my former /etc/fstab were:
/dev/mapper/isw_bcjcfejhjc_Volume08 / ext4 errors=remount-ro 0 1
/dev/mapper/isw_bcjcfejhjc_Volume05 /boot ext4 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume09 /home ext3 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume06 none swap sw 0 0
/dev/mapper/isw_bcjcfejhjc_Volume07 none swap sw 0 0
While checking the problem with drive /boot I recognized the changed names in /dev/mapper. After changing the names in /etc/fstab the system booted without problems:
/dev/mapper/isw_bcjcfejhjc_Volume0p8 / ext4 errors=remount-ro 0 1
/dev/mapper/isw_bcjcfejhjc_Volume0p5 /boot ext4 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume0p9 /home ext3 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume0p6 none swap sw 0 0
/dev/mapper/isw_bcjcfejhjc_Volume0p7 none swap sw 0 0
/dev/mapper/isw_bcjcfejhjc_Volume08 / ext4 errors=remount-ro 0 1
/dev/mapper/isw_bcjcfejhjc_Volume05 /boot ext4 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume09 /home ext3 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume06 none swap sw 0 0
/dev/mapper/isw_bcjcfejhjc_Volume07 none swap sw 0 0
While checking the problem with drive /boot I recognized the changed names in /dev/mapper. After changing the names in /etc/fstab the system booted without problems:
/dev/mapper/isw_bcjcfejhjc_Volume0p8 / ext4 errors=remount-ro 0 1
/dev/mapper/isw_bcjcfejhjc_Volume0p5 /boot ext4 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume0p9 /home ext3 defaults 0 2
/dev/mapper/isw_bcjcfejhjc_Volume0p6 none swap sw 0 0
/dev/mapper/isw_bcjcfejhjc_Volume0p7 none swap sw 0 0