* dd: error reading '/proc/sys/Device/HarddiskVolumeShadowCopy9': No space left on device
@ 2023-05-25 9:03 Opty
0 siblings, 0 replies; only message in thread
From: Opty @ 2023-05-25 9:03 UTC (permalink / raw)
To: cygwin
Hello,
I'm trying to create a volume shadow copy image using
$ dd if=/proc/sys/Device/HarddiskVolumeShadowCopy9 of=/dev/null
bs=4096 status=progress
but it ends prematurely with
116923437056 bytes (117 GB, 109 GiB) copied, 65 s, 1.8 GB/s
dd: error reading '/proc/sys/Device/HarddiskVolumeShadowCopy9': No
space left on device
29139072+0 records in
29139072+0 records out
119353638912 bytes (119 GB, 111 GiB) copied, 65.5664 s, 1.8 GB/s
If i use Windows Command Prompt then it finishes successfully:
C:\tmp>\cygwin64\bin\dd
if=//?/GLOBALROOT/Device/HarddiskVolumeShadowCopy9 of=/dev/null
bs=4096 status=progress
119288205312 bytes (119 GB, 111 GiB) copied, 471 s, 253 MB/s
29139074+0 records in
29139074+0 records out
119353647104 bytes (119 GB, 111 GiB) copied, 471.14 s, 253 MB/s
If I use count=29139071 then it works in both environments.
Any ideas?
I haven't subscribed yet so Cc me please.
Regards,
Opty
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2023-05-25 9:03 dd: error reading '/proc/sys/Device/HarddiskVolumeShadowCopy9': No space left on device Opty
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