[Desire HD Q&A, Help & Troubleshooting] kanifee:
sorry my first post is me with cap in hand but im in need of some help please.

had my dhd for 4 days now, done a bit of research and set about flashing a new rom to it, i rooted, h boot and s-off'd the device and flashed a CyanogenMod 7 rom to it, i got everything set up the way i wanted it and though it would be good idea to make a nandroid back-up, i had already done one of the stock rom and used it to restore when the first image i used was pants but this time i got a "cant mount /system/!" error.

i can mount the card on my pc through the phone and have tried cleaning the contacts on the memory card but its not helping, i tried copying my previous back up to my pc and emptyed the clockworkmod folder but it didnt help. can any one help please as i really dont like not being able to back up my system and dont like the idea of maybe not being able to restore an image either!

this is what was in the error log.

Starting recovery on Sun Jan 16 16:33:55 2011

framebuffer: fd 4 (480 x 800)

ClockworkMod Recovery v2.5.1.3

Command: "/sbin/recovery"

ro.secure=0

ro.allow.mock.location=1

ro.debuggable=1

persist.service.adb.enable=1

ro.build.id=FRG83

ro.build.display.id=htc_ace-eng 2.2.1 FRG83 eng.koush.20101127.182301 test-keys

ro.build.version.incremental=eng.koush.20101127.182301

ro.build.version.sdk=8

ro.build.version.codename=REL

ro.build.version.release=2.2.1

ro.build.date=Sat Nov 27 18:23:28 PST 2010

ro.build.date.utc=0

ro.build.type=eng

ro.build.user=koush

ro.build.host=Koushik-OSx86.local

ro.build.tags=test-keys

ro.product.model=HTC Desire HD

ro.product.brand=generic

ro.product.name=htc_ace

ro.product.device=ace

ro.product.board=ace

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=HTC

ro.product.locale.language=en

ro.product.locale.region=US

ro.wifi.channels=

ro.board.platform=msm7x30

ro.build.product=ace

ro.build.description=htc_ace-eng 2.2.1 FRG83 eng.koush.20101127.182301 test-keys

ro.build.fingerprint=generic/htc_ace/ace/ace:2.2.1/FRG83/eng.koush.20101127.182301:eng/test-keys

ro.sf.lcd_density=240

debug.fb.rgb565=0

ro.gsm.2nd_data_retry_config=max_retries=3, 2000, 2000, 2000

rild.libpath=/system/lib/librilswitch.so

rilswitch.vendorlibpath=/system/lib/libhtc_ril.so

rilswitch.ganlibpath=/system/lib/libganril.so

ro.ril.enable.a53=1

ro.ril.enable.dtm=0

ro.ril.gprsclass=10

ro.ril.hsdpa.category=10

ro.ril.hsupa.category=6

ro.ril.hsxpa=2

ro.ril.def.agps.feature=1

ro.ril.disable.fd.plmn.prefix=23402,23410,23411

ro.ril.enable.sdr=0

ro.ril.enable.gea3=0

ro.telephony.default_network=0

wifi.interface=eth0

wifi.supplicant_scan_interval=15

mobiledata.interfaces=rmnet0,rmnet1,rmnet2

ro.opengles.version=131072

dalvik.vm.heapsize=32m

ro.ril.def.agps.mode=2

ro.ril.disable.power.collapse=1

ro.com.google.clientidbase=android-htc

ro.com.google.networklocation=1

ro.com.google.gmsversion=2.2_r7

ro.setupwizard.enable_bypass=1

dalvik.vm.lockprof.threshold=500

dalvik.vm.dexopt-flags=m=y

media.a1026.nsForVoiceRec=0

media.a1026.enableA1026=1

htc.audio.alt.enable=0

htc.audio.hac.enable=0

keyguard.no_require_sim=true

ro.config.notification_sound=pixiedust.ogg

ro.config.alarm_alert=Alarm_Beep_03.ogg

media.stagefright.enable-player=true

media.stagefright.enable-meta=true

media.stagefright.enable-scan=true

media.stagefright.enable-http=true

ro.kernel.android.checkjni=0

ro.setupwizard.mode=OPTIONAL

net.bt.name=Android

net.change=net.bt.name

dalvik.vm.stack-trace-file=/data/anr/traces.txt

ro.factorytest=0

ro.serialno=HT0C4RX15734

ro.bootmode=recovery

ro.baseband=26.03.02.26_M

ro.carrier=H3G-UK

ro.bootloader=0.85.2007

ro.hardware=spade

ro.revision=128

ro.emmc=1

init.svc.recovery=running

init.svc.adbd=running

I:Checking for extendedcommand...

I:Running extendedcommand...

Waiting for SD Card to mount (20s)

SD Card mounted...

I:Running script:

I:

print "ROM Manager Version 3.0.0.7"

backup_rom /sdcard/clockworkmod/backup/2011-01-16-16.33.26

Parsed /tmp/extendedcommand

calling command print

ROM Manager Version 3.0.0.7

calling command backup_rom

SD Card space free: 5210MB

Backing up boot...

Backing up recovery...

Backing up system...

Failed to mount /dev/block/mmcblk0p25 on /system: Invalid argument

Can't mount /system/!

Failure at line 2:

backup_rom /sdcard/clockworkmod/backup/2011-01-16-16.33.26

thanks in advance!