Overwriting MBR

03 September 2004, 11:07

Hi there,
We've got old A1200 in our company, working as teletext transmitter (TV teletext). Few days ago first HD break down. Still I can read data from it, but it seems, like MBR damage. How can I try to fix MBR? Like Windows' "fdisk /mbr".
I'm not Amiga pro, so please try to be accesible

ant512 · 03 September 2004, 12:05

The Amiga's MBR (Master Boot Record) is called the "RDB" (Rigid Disk Block). You can get a utility to try and restore this from the Aminet:

http://us.aminet.net/disk/salv/RDBSalv.lha

This may be a demo version, however.

Jope · 03 September 2004, 12:54

Zen,

How did you come by this diagnosis?

What does the drive do and not do?

ant512 · 03 September 2004, 13:33

Quote:

Originally Posted by Jope

How did you come by this diagnosis?

What does the drive do and not do?

That's a good question, actually. You say you can still retrieve data from the drive; however, if the RDB had become corrupt, you'd lose all of the partition information. The drive wouldn't be accessible, and you'd only see that a hard drive was installed at all by using HDToolBox, the disk prep utility.

03 September 2004, 16:57

Quote:

Originally Posted by Jope

Zen,

How did you come by this diagnosis?

What does the drive do and not do?

Machine does't boot from this drive, but I can still retrive data, if I plug it as secondary drive.
As I wrote, I'm not Amiga pro, this system was working well, there was no problem with it. Now something is wrong, and I'm powerless. I'm amiga lamer (as I see

D-Dan · 03 September 2004, 20:42

Boot with the broken drive as slave, open HDToolBox and go to the first partition on that drive. Make sure that the "Bootable" flag is selected. If it is, I'd suggest backing everything up from the drive, and re-installing it from the start.

If the flag isn't set, then set it, save the changes, and it should be there.

Incidently, have you checked the early startup screen (both mouse buttons down at boot) to see if any partitions on this drive are shown as being bootable. If so, check the priority to make sure something else isn't getting there first.

03 September 2004, 11:07	#1
zen Posts: n/a	Overwriting MBR Hi there, We've got old A1200 in our company, working as teletext transmitter (TV teletext). Few days ago first HD break down. Still I can read data from it, but it seems, like MBR damage. How can I try to fix MBR? Like Windows' "fdisk /mbr". I'm not Amiga pro, so please try to be accesible

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03 September 2004, 12:05	#2
ant512 Registered User Join Date: Dec 2002 Location: California Posts: 965	The Amiga's MBR (Master Boot Record) is called the "RDB" (Rigid Disk Block). You can get a utility to try and restore this from the Aminet: http://us.aminet.net/disk/salv/RDBSalv.lha This may be a demo version, however.

03 September 2004, 12:54	#3
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,863	Zen, How did you come by this diagnosis? What does the drive do and not do?

03 September 2004, 20:42	#6
D-Dan AMD powered UAE Join Date: May 2004 Location: Oldham, UK Age: 59 Posts: 68	Boot with the broken drive as slave, open HDToolBox and go to the first partition on that drive. Make sure that the "Bootable" flag is selected. If it is, I'd suggest backing everything up from the drive, and re-installing it from the start. If the flag isn't set, then set it, save the changes, and it should be there. Incidently, have you checked the early startup screen (both mouse buttons down at boot) to see if any partitions on this drive are shown as being bootable. If so, check the priority to make sure something else isn't getting there first.

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