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- Path: sparky!uunet!wupost!crcnis1.unl.edu!moe.ksu.ksu.edu!matt.ksu.ksu.edu!news
- From: nan@matt.ksu.ksu.edu (Nan Zou)
- Newsgroups: comp.os.linux
- Subject: efsck: bad magic number in super-block, boot manager's fault?
- Date: 3 Jan 1993 10:54:55 -0600
- Organization: Kansas State University
- Lines: 30
- Message-ID: <1i75ovINNmbm@matt.ksu.ksu.edu>
- NNTP-Posting-Host: matt.ksu.ksu.edu
-
- I've recently started playing with Linux and I like it a lot. But, due
- to my own stupidity and curiosity, I've somehow managed to screw up my
- Linux partitions, let me describe my harddisk layout:
-
- disk C (/dev/hda)
- 80MB primary DOS partition /dev/hda1
- 1MB primary OS/2 2.0 Boot Manager partition /dev/hda2 (but Linux
- fdisk identifies it as an Opus(??) partition)
- disk D (/dev/hdb)
- 120 primary OS/2 HPFS partition /dev/hdb2
- 8MB primary Linux root partition (Minix fs) /dev/hdb3
- 82MB extented partition /dev/hdb4 which contains:
- 58MB logical Linux /usr partition (ext fs) /dev/hdb5
- 10MB logical Linux /home partition (ext fs) /dev/hdb6
- 6MB logical Linux swap partition (swap) /dev/hdb7
-
- I created the extended partition (and the logical partitions inside it)
- using the fdisk from SLS, all is going well until I decided to add the
- Linux root partition to OS/2 Boot Manager's menu, BIG MISTAKE, OS/2 Boot
- Manager left the root partition alone, but it did something funny to the
- extended partition that holds some logical Linux partitions (/usr, /home,
- swap), screwing up all of them, mount gives Ext-fs magic match failure,
- efsck reports bad magic number in super-block, seems that the partition
- table info has been trashed, all the logical partitions showed active
- flags that weren't there before. I'll probably re-install (grrrhhh..),
- but I wonder if anyone has had problems with Boot Manager and how they
- get it to work, there must be some reasons why people call it the Boot
- Mangler. ;-) I'd appreciate any help.
-
- -- Nan
-