OK... problem solved (at least, sort of...) the installation failure is entirely to do with the ext4 file system. using ext3 gives no problems whatsoever. this is irrespective of whether or not the ssd is correctly balanced.
the correct balancing for a 128k erase block ssd (most ssd but not ocz) is to use fdisk to create a geometry of: ~# fdisk -H 8 -S 32 /dev/sda(x) the first partition should then be alligned (ie started on) block 5. all other partitions are then automatically aligned. formatting should take place with: ~# mke2fs -t ext3 -E stripe-width=32 /dev/sda(x) if logical volumes are used the metadata should be increased in size from 192k to 256k to keep things aligned on 128k boundaries using: ~# pvscreate --metadatasize 250k /dev/sda(x) (don't know why 250k, but using 256k gives a meta-data size of 320K!) however, like i say - the problem rests entirely with ext4 (or, at least, the package installer's implementation of it) hope this helps! -- Installation fails on Crucial/Micron M225 256gb SSD https://bugs.launchpad.net/bugs/415888 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
