Date: Thu, 10 Feb 2000 13:18:54 +0200 From: Ruslan Ermilov <ru@ucb.crimea.ua> To: Ernst de Haan <ernst@znerd.demon.nl> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Boot record repair program? Message-ID: <20000210131854.A68362@relay.ucb.crimea.ua> In-Reply-To: <38A28D6F.DE8BADDF@znerd.demon.nl>; from Ernst de Haan on Thu, Feb 10, 2000 at 11:05:35AM %2B0100 References: <38A2778A.4F76CB8B@znerd.demon.nl> <20000210104119.B29395@relay.ucb.crimea.ua> <38A28D6F.DE8BADDF@znerd.demon.nl>
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On Thu, Feb 10, 2000 at 11:05:35AM +0100, Ernst de Haan wrote: > It was in `compatible' mode, cuz Winblows didn't start up if me 2nd disk > was in `dangerously dedicated mode'. >=20 > Any help would be greatly appreciated. I'm going to install a new harddisk > now and install FreeBSD on that one and then try to copy all data from the > old disk to the new. Problem is, I don't know where the partitions start > :( >=20 > I used to have my partitions like this (for what I recall): >=20 > 1st FreeBSD (about 3 GB) > 2nd Linux (about 3 GB?) > 3rd Linux swap (about 120 MB) >=20 > But this is what FIPS gives me under DOS (i compressed the table): >=20 > -------------------- > Which Drive (1=3D0x80/2=3D0x81/=08)? 2 >=20 > Partition table: >=20 > |boot| Start | | End | Start |Number of| > #|able|Hd Cyl Sec|System|Hd Cyl Sec| Sector |Sectors | MB > -+----+----------+------+------------+--------+---------+---- > 1|yes | 1 768 63| FFh|254 1917 63|16711935| 16753663|8180 > 2| no | 0 894 63| FFh|254 1807 63|16753663| 16747519|8177 > 3| no | 0 768 63| FFh| 0 1792 63|16711935| 16711935|8160 > 4| no | 0 768 63| FFh| 0 1792 63|16711935| 16711935|8160 >=20 > Checking root sector ...=20 > Error: Invalid root sector signature: FF AA >=20 > This is weird as I dont recall havig _4_ partitions (but it could be I > created different partitions for / and /usr (?) ) and the size of the > partitions are way out of bounds for my Quantum Fireball 6.4A (6.4 GB) >=20 >=20 FreeBSD fdisk(8) has a number of options to cope with MBR (including partition table); it can install new boot code (/boot/mbr by default), initialize the disk in "dedicated" mode, set active partition, etc. Refer to the fdisk(8) manpage for details. But if partition table is clobberred... it should be restored somehow, and this is a not-so-easy, though still possible, task. Basically, you would need to scan through the disk and find the BSD disklabel, and then manually re-create partition table, but this is beyond this discussion, and I think ports/sysutils/gpart is more intelligent on this one: : A port of a tool which tries to guess the primary partition table of a PC= -type : hard disk in case the primary partition table in sector 0 is damaged, inc= orrect : or deleted. The guessed table can be written to a file or device. :=20 : Supported (guessable) filesystem or partition types: DOS/Windows FAT, Lin= ux : ext2 and swap, OS/2 HPFS, Windows NTFS, FreeBSD and Solaris/x86 disklabel= s, : Minix FS, Reiser FS :=20 : Author: Michail Brzitwa <mb@ichabod.han.de> : WWW: http://home.pages.de/~michab/gpart/ :=20 : - Andrew Stevenson : <andrew@ugh.net.au> HTH, --=20 Ruslan Ermilov Sysadmin and DBA of the ru@ucb.crimea.ua United Commercial Bank, ru@FreeBSD.org FreeBSD committer, +380.652.247.647 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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