hi all, I am attempting an upgrade from CentOS 5.3 to CentOS 5.4. The system I am running has three 1 terabyte drives /sda/b/c configured as soft raid0 with xfs file system and one solid state 32 GB drive (/sdd)with linux(CentOS 5.3) on it. Now the problem is when I attempt an upgrade installer complains about unreadable partition table on sda/b/c and ask for intialization, which is fine since I can ignore the message but than it try to mount /dev/md0 soft raid partition and fails the upgrade. Now before attempting an upgrade if I unmount the /dev/md0 and remove the entry from fstab, installer dosen't complain about any thing and the upgrade is successful. Now the company I work for ships the boxes with above configurations and I don't want customers to playing around with fstab and than upgrade their boxes. Any work around ....?? Apart from performing upgrade over net as it must be thru DVD.