General :: Corrupt Partition - How To Check First And Then Reformat

I've got an HTC Inspire 4G (similar to the Desire HD). I've been rooted and S-OFF since January when I switched to CM7. That was fantastic until late May. Phone started to freeze randomly. I decided to try flashing new ROM and am now using a JB ROM called Jellytime.

Symptoms

1. Phone freezes randomly. Removing the battery is the only way to shut it off. The time to freeze seems to get shorter and shorter eventually freezing during the boot animation. I can go in and wipe data/factory reset, wipe cache, and wipe dalvik (I'm using CWM Recovery v5.0.2.0) and flash the rom and get a little use again. But most of that time is spent signing back in with google accounts and redownloading apps.

2. I can't flash other ROMs. I've tried flashing back to CM7 or to Android Revolution which is a stock-ish ROM with no luck. With CM7 I'd get an error in recovery a little while after it started that I don't remember off the top of my head. Android Revolution uses a different revoery or flashing tool (I think that's what AROMA is) When flashing that ROM, things go well until I get the following error at which point my choice is to reboot.

Code:
assert failed:write_raw_image("/tmp/boot.img","boot")
Once I reboot I am back in Jellytime.

3. Can't mount /cache CWM Recovery will throw up some can't mount and can't open /cache errors once I "Wipe Data/Factory reset" I believe the two places it tries are /cache/recovery/log and /cache/recovery/last_log

4. Can't format System I've tried to format the /system or /data partitions using Recovery only to have an "Error: Can't format /system" returned.

Have I got a corrupt partition? My eMMC chip is fine as best I can tell. I ran 'dmesg | grep mmc0' and got the following back.

Code:
dmesg | grep mmc0
<3>[ 6.684753] mmc0: No card detect facilities available
<6>[ 6.685363] mmc0: Qualcomm MSM SDCC at 0x00000000a0500000 irq 98,0 dma 7
<6>[ 6.685638] mmc0: Platform slot type: MMC

[Code] ......

This link shows similar output for a good chip. I can't find the page now that had the messages indicating a bad chip. (browser history far too full of pages that led nowhere)

So...Have I got a corrupt partition(s)? Is there something else I should check? Is there a way to test partitions to find errors? e2fsck? How can I reformat things (from adb is fine with some guidance) if this is my issue and if that is the fix?