Re: Trying to read a raw image file
Hi Charles,
I had to hack around with the acorn-fdisk source a little, but I
managed to get it compiled in the end. It reports the following:
Disk ../IMAGE.000: 16 heads, 63 sectors, 1024 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot BeginStart End BlocksId System
../IMAGE.000100 8442080 100 Filecore
../IMAGE.0002 84 84 841 fffe Unknown type
65534
So I guess there's an ADFS partition there somewhere.
Yes, `Filecore' is an ADFS one.
Can you hack the source a little more. Alter fdisk.c's
print_part_tables() function to have an extra
`list_table(LIST_EXTENDED_NORMAL);' after the existing list_table():
static int
print_part_tables(int nr, const char **parts)
{
int i, ret = 1;
for(i = 0; i nr; i++) {
device = parts[i];
part = part_open(device, dev_part_type);
if (part) {
list_table(LIST_NORMAL);
list_table(LIST_EXTENDED_NORMAL);
part = part_close(part);
ret = 0;
}
}
return ret;
}
Then run it again and supply the new output along with /tmp/part.debug
which will be created. Here's my output as an example of the new
section at the end.
$ ./fdisk -l /tmp/hi
Disk /tmp/hi: 16 heads, 63 sectors, 1024 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot BeginStart End Blocks Id System
/tmp/hi100 39 19584100 Filecore
/tmp/hi2 39 39 39 1 fffe Reserved/Free
Disk /tmp/hi: 16 heads, 63 sectors, 1024 cylinders
Nr AF Hd Sec Cyl Hd Sec Cyl StartSize ID
0 00 0 00 0 00 0 1 000
1 00 0 00 13 44 38 0 39168 100
2 00 13 45 38 13 46 38 39168 2 fffe
$
Cheers,
Ralph.
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Re: Trying to read a raw image file
Hi Charles, I'd have thought you'd have had some Hugo outside that BASIC program though. What if you change *both* Hugos in the pipeline to `Nick'? Do you know what format the hard disc was? E? F? And was there more than one partition on it, as was required when bigger hard drives came along. No Nicks from either I'm afraid. I don't know anything about the formatting/partitioning of the drive, because the machine it came out of is completely goosed, and the person who set it up is sadly no longer with us. OK, I don't understand why there's the lack of Hugo and Nick. Does the acorn-fdisk package exist for your Linux? It's on Debian and Ubuntu. It's -l option will examine the disc image and work out which of the myriad of partitioning schemes used on Acorn machine it has, and list the partitions. Here it is on my `empty' ADFS image, /tmp/hi. $ ./fdisk -l /tmp/hi Disk /tmp/hi: 16 heads, 63 sectors, 1024 cylinders Units = cylinders of 1008 * 512 bytes Device Boot BeginStart End Blocks Id System /tmp/hi100 39 19584100 Filecore /tmp/hi2 39 39 39 1 fffe Reserved/Free $ It creates an interesting /tmp/part.debug debug file. It could be that the machine had a hard disc interface in it that used a partitioning scheme that RISC OS doesn't know about, but the module on the podule did. Of course, arcem doesn't have that module and so RISC OS's ADFS doesn't understand the disc. So I guess I need to find whole number factors of 42864640/256, and try those as a set of params in .arcemrc? You can try that too. cylinders 299 heads 35 sectors16 sectorlength 256 42,864,640 - 299 * 35 * 16 * 256 == 0 Cheers, Ralph. - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ arcem-user mailing list arcem-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/arcem-user
