HDF image from MicroSD to CF.

Marchie · 17 July 2017, 04:15

Hi All,

I need to get my hard disk image from a micro SD card onto a compact flash, what's the best way to do this? (if it can be done?)

I think I can use Amiga explorer to write the image to the CF card (ridiculously slow as that will be), but I'll still need a way to rip the HDF from the MicroSD

Cheers,
-M

jPV · 17 July 2017, 07:06

I think it should go with any program which does (reads and writes) raw images of devices. I have no idea about Windows, but for example dd in Linux or RAWDISK: on MorphOS etc... If Windows itself doesn't support it, there must be dozens of freeware programs too.

demolition · 17 July 2017, 09:22

For Windows this tool can be used:
https://sourceforge.net/projects/win32diskimager/

You do need the target drive to be the same size or bigger as the source or you won't be able to fit the image. Notice that one 4GB card is not always exactly the same size as another 4GB card.

idrougge · 17 July 2017, 19:38

Partition and format the new card and do

Code:

Copy CLONE ALL FROM CF: TO SD:

supaduper · 17 July 2017, 20:21

Also try WinImage
http://www.winimage.com/download.htm

Marchie · 20 July 2017, 08:02

Thanks for the help so far, I managed to get the CF card to read in WinUAE and could back it up from there.

Getting data off the MicroSD card however has hit a snag - it's from a SCSI 2 SD and has been setup as four separate drives/devices in the SCSI 2 SD utility (as opposed to four seperate partitions) and when I mount the drive in Win UAE, only the first 'drive' appears.

As it would be a real nuisance to put the SCSi 2 SD back into my Amiga, is there any way I can get all four 'drives' to read in WinUAE?

Jope · 20 July 2017, 08:16

You need the sector offsets of each virtual hd, from the scsi2sd config utility, then you can split it into parts with dd or winhex or whatever.

Perhaps the scsi2sd source will help you to decode the configuration sector from the sd card to help you find the offsets/partition lengths.

Marchie · 20 July 2017, 10:58

This is getting heavy...

Can I use winhex or dd to read an Amiga formatted card?

Is there any way to run a scsi controller without using scsi.device (which the Vamp uses for it's IDE apparently)?

demolition · 20 July 2017, 11:12

You can use dd to make an image of the entire card and then try to find the correct indexes inside this image. I would always prefer to work on a backup image - it is much faster and also safer in case you mess something up.

If you know the indexes, you can also specify those with dd to extract just the part you need.

I would think that you could use some hex editor to search for the partition headers and find the start address of the partitions that way?

Jope · 20 July 2017, 13:34

Yep, if you use DD, then remember bs=512 count=amount_of_sectors_in_your_partition skip=offset (at least I believe the scsi2sd v5 stuff works in the same way as v6)

Note, that the offset is calculated from 0. If your skip=1, you get the second sector onwards. Thus your skip value should be the address of the last sector of the data you *don't* want, counting from the beginning of the file.

.. or just get a SCSI controller and connect the scsi2sd to that. If you have a V6 scsi2sd, then the USB massstorage feature of that makes this really easy.

In any case you should use the scsi2sd utility to find out the sector offsets, you will save yourself a lot of trouble.

idrougge · 20 July 2017, 21:06

The SCSI2SD v6 uses normal-size SD cards, so it must be a v5.

prowler · 20 July 2017, 21:21

Quote:

Originally Posted by idrougge

The SCSI2SD v6 uses normal-size SD cards, so it must be a v5.

Can a Micro SD to SD adapter not get around that?

idrougge · 20 July 2017, 21:37

It can.

Marchie · 21 July 2017, 01:42

Ok, so I can open the card in WinHex (Win dd only wants Win formatted drives).

Scrolling through the seemingly infinite scroll of data it's easy enough to see where there is data and where there isn't (the card is mostly empty). But what could I search for that would indicate the start/end of a 'drive'? And how would I export just that portion of the data?

(Yes, the SCSI 2 SD is v5)

demolition · 21 July 2017, 06:29

My images of disks using RDB all start with 'RDSK' so you probably need to remove anything before the first instance of that string.

Jope · 21 July 2017, 08:57

RDSK onwards is a good bet.

The scsi2sd v6 stores its config in the last two sectors, but I don't know the format. According to the manual, some versions of v5 store it on the scsi2sd itself, so my previous advice was not applicable.

fgh · 21 July 2017, 13:07

If you can put both on the amiga at the same time, simply copying across sounds like a good alternative

17 July 2017, 04:15	#1
Marchie Registered User Join Date: Jul 2016 Location: Sydney / London Posts: 589	HDF image from MicroSD to CF. Hi All, I need to get my hard disk image from a micro SD card onto a compact flash, what's the best way to do this? (if it can be done?) I think I can use Amiga explorer to write the image to the CF card (ridiculously slow as that will be), but I'll still need a way to rip the HDF from the MicroSD Cheers, -M

17 July 2017, 19:38	#4
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,332	Partition and format the new card and do Code: Copy CLONE ALL FROM CF: TO SD:

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17 July 2017, 07:06	#2
jPV Registered User Join Date: Feb 2008 Location: RNO Posts: 1,006	I think it should go with any program which does (reads and writes) raw images of devices. I have no idea about Windows, but for example dd in Linux or RAWDISK: on MorphOS etc... If Windows itself doesn't support it, there must be dozens of freeware programs too.

17 July 2017, 09:22	#3
demolition Unregistered User Join Date: Sep 2012 Location: Copenhagen / DK Age: 43 Posts: 4,190	For Windows this tool can be used: https://sourceforge.net/projects/win32diskimager/ You do need the target drive to be the same size or bigger as the source or you won't be able to fit the image. Notice that one 4GB card is not always exactly the same size as another 4GB card.

17 July 2017, 20:21	#5
supaduper Registered User Join Date: Oct 2012 Location: Krypton Posts: 1,210	Also try WinImage http://www.winimage.com/download.htm

20 July 2017, 08:02	#6
Marchie Registered User Join Date: Jul 2016 Location: Sydney / London Posts: 589	Thanks for the help so far, I managed to get the CF card to read in WinUAE and could back it up from there. Getting data off the MicroSD card however has hit a snag - it's from a SCSI 2 SD and has been setup as four separate drives/devices in the SCSI 2 SD utility (as opposed to four seperate partitions) and when I mount the drive in Win UAE, only the first 'drive' appears. As it would be a real nuisance to put the SCSi 2 SD back into my Amiga, is there any way I can get all four 'drives' to read in WinUAE?

20 July 2017, 08:16	#7
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	You need the sector offsets of each virtual hd, from the scsi2sd config utility, then you can split it into parts with dd or winhex or whatever. Perhaps the scsi2sd source will help you to decode the configuration sector from the sd card to help you find the offsets/partition lengths.

20 July 2017, 10:58	#8
Marchie Registered User Join Date: Jul 2016 Location: Sydney / London Posts: 589	This is getting heavy... Can I use winhex or dd to read an Amiga formatted card? Is there any way to run a scsi controller without using scsi.device (which the Vamp uses for it's IDE apparently)?

20 July 2017, 11:12	#9
demolition Unregistered User Join Date: Sep 2012 Location: Copenhagen / DK Age: 43 Posts: 4,190	You can use dd to make an image of the entire card and then try to find the correct indexes inside this image. I would always prefer to work on a backup image - it is much faster and also safer in case you mess something up. If you know the indexes, you can also specify those with dd to extract just the part you need. I would think that you could use some hex editor to search for the partition headers and find the start address of the partitions that way?

20 July 2017, 13:34	#10
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	Yep, if you use DD, then remember bs=512 count=amount_of_sectors_in_your_partition skip=offset (at least I believe the scsi2sd v5 stuff works in the same way as v6) Note, that the offset is calculated from 0. If your skip=1, you get the second sector onwards. Thus your skip value should be the address of the last sector of the data you don't want, counting from the beginning of the file. .. or just get a SCSI controller and connect the scsi2sd to that. If you have a V6 scsi2sd, then the USB massstorage feature of that makes this really easy. In any case you should use the scsi2sd utility to find out the sector offsets, you will save yourself a lot of trouble.

20 July 2017, 21:06	#11
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,332	The SCSI2SD v6 uses normal-size SD cards, so it must be a v5.

20 July 2017, 21:37	#13
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,332	It can.

21 July 2017, 01:42	#14
Marchie Registered User Join Date: Jul 2016 Location: Sydney / London Posts: 589	Ok, so I can open the card in WinHex (Win dd only wants Win formatted drives). Scrolling through the seemingly infinite scroll of data it's easy enough to see where there is data and where there isn't (the card is mostly empty). But what could I search for that would indicate the start/end of a 'drive'? And how would I export just that portion of the data? (Yes, the SCSI 2 SD is v5)

21 July 2017, 06:29	#15
demolition Unregistered User Join Date: Sep 2012 Location: Copenhagen / DK Age: 43 Posts: 4,190	My images of disks using RDB all start with 'RDSK' so you probably need to remove anything before the first instance of that string.

21 July 2017, 08:57	#16
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	RDSK onwards is a good bet. The scsi2sd v6 stores its config in the last two sectors, but I don't know the format. According to the manual, some versions of v5 store it on the scsi2sd itself, so my previous advice was not applicable.

21 July 2017, 13:07	#17
fgh Registered User Join Date: Dec 2010 Location: Norway Posts: 817	If you can put both on the amiga at the same time, simply copying across sounds like a good alternative

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