If you want to check for bad sectors
fastboot oem rbchkIf you want to change the recovery (see here for files http://download.clockworkmod.com/recoveries/)
you can follow that with recovery|boot|misc|system|userdata to check specific partitions. im not sure but i think that was a feature added to blackrose might not work on stock hboot
fastboot flash recovery /path/to/recovery-clockwork-5.0.2.0-bravo.imgIf you want to flash radio
fastboot flash radio radio.imgLast but never least, if you want to change the partitions (hboot) then
1.Flash HBOOT with your phone in fastboot mode (Back+POWER or 'adb reboot bootloader') -> 'fastboot flash hboot bravo_alphaspl.img' (change into the correct filename for the HBOOT you downloaded)
2.'fastboot reboot-bootloader'
3.'fastboot erase cache'
To read-write the system partition
mount -o rw,remount /system