Aprox 25 failed http and DVD installs of FC5 and counting :o/

[Dave Russell]

I have a system that was running FC4 up until very recently.

I first tried to install FC5 in the same way I do all my home installs, 
using a boot iso and a local http source (loopback mounted FC5 DVD iso, 
sha1sum'd to ensure integrity).

The install fails each time (on average) at between 5 and 60% through 
the rpm install phase.

The machine locks hard, and it is not possible to switch to another VT 
or do anything except power off the machine.

A DVD install performs in exactly the same way.

On the handful of times that I am able to get a very minimal install 
installed (by removing all the packages from the install selection), the 
machine soon locks up when adding more packages or running yum update.

The lockup's appear to be ext3 throwing wobblers and re-mounting 
filesystems as read only.

EXT3-fs error (device dm-0): ext3_delete_entry: bad entry in directory 
#1376454:
inode out of bounds - offset=0, inode=914432000, rec_len=12, name_len=1
Aborting journal on device dm-0.
ext3_abort called.
EXT3-fs error (device dm-0): ext3_journal_start_sb: Detected aborted journal
Remounting filesystem read-only
EXT3-fs error (device dm-0) in ext3_unlink: IO failure

My initial suspicions were a co-incidental imminent hardware failure... 
however I have run memtest86 overnight to confirm no issues with memory, 
and have also done a read/write destructive badblocks test on the array 
which also reported no problems.

I've raised a bugzilla case, but so far no joy.... can anyone help, or 
suggest anything else I should try?

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=189570

Here's hoping.