On Sun, Sep 11, 2005 at 09:42:54AM -0500, Joe Koberg wrote:
> You might want /usr/ports/sysutils/scan_ffs
>
> from the package description:
>
> scan_ffs(8) recovers accidential lost or deleted disklabels.
Thanks for the hint. It turns out for me that for some strange
reason the FreeBSD Slice 4 doesnt start exactly on a Cylinder
boundary :-( DragonFly or Partition Magic, one of these tools
must be the culprit.
Disk name: ad4 FDISK Partition Editor
DISK Geometry: 19457 cyls/255 heads/63 sectors = 312576705 sectors (152625MB)
Offset Size(ST) End Name PType Desc Subtype Flags
0 63 62 - 12 unused 0
63 24579387 24579449 ad4s1 7 fat 11 =
24579450 174080340 198659789 ad4s2 4 extended DOS 5 =
198659790 18860310 217520099 ad4s3 8 freebsd 165 =
217520100 95061708 312581807 - 12 unused 0
scan_ffs -s -b 217520100 ad4
ufs2 at 217528802 size 23761975 mount /data time Mon Jan 31 16:49:36 2005
off by 8702 (217528802-217520100=8702)
detected partition start doesnt start on cylinder:
217528802/255/63=13540.54
Although I try to make the previous slice 3 a little larger
sysinstall doesnt allow me to make the slice greater than
up to the partition boundary.
So I end up with that, see above
217520100/255/63=13540.00
Using sysinstall I cannot create a slightly wrong but working
partition table to access my data again.
Question: What can I use now to be able to re-create Slice 4
starting not exactly at partition boundary but instead
at Sector 217528802 ????
I tried fdisk but cannot enter something like interactive
mode.
All it tells me is this:
[EMAIL PROTECTED] ~ fdisk ad4
******* Working on device /dev/ad4 *******
parameters extracted from in-core disklabel are:
cylinders=310101 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=310101 heads=16 sectors/track=63 (1008 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 11 (0x0b),(DOS or Windows 95 with 32 bit FAT)
start 63, size 24579387 (12001 Meg), flag 0
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 254/ sector 63
The data for partition 2 is:
sysid 5 (0x05),(Extended DOS)
start 24579450, size 174080340 (85000 Meg), flag 0
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 254/ sector 63
The data for partition 3 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 198659790, size 18860310 (9209 Meg), flag 80 (active)
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 254/ sector 63
The data for partition 4 is:
<UNUSED>
How can I enter interactice mode in fdisk ???
Andreas ///
--
Andreas Klemm - Powered by FreeBSD 5.4
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