partition map and the stability of the filesystem question

david yellowdog-general@lists.terrasoftsolutions.com
Wed Aug 7 01:11:01 2002


Ok, i've got a litle bit of a head scratcher regarding a partition map and 
the stability of the filesystem.

pdisk produces this: which appears to be a perfectly valid usable map.
I am concerned with /dev/hda14 which is supposed to be my last usable partion 
on this drive. (I know 15 partitions is the limit)

[root@localhost davidwri]# pdisk /dev/hda
Edit /dev/hda -

Partition map (with 512 byte blocks) on '/dev/hda'
 #:                type name                   length   base     ( size )
 1: Apple_partition_map Apple                      63 @ 1
 2:      Apple_Driver43*Macintosh                  54 @ 64
 3:      Apple_Driver43*Macintosh                  74 @ 118
 4:    Apple_Driver_ATA*Macintosh                  54 @ 192
 5:    Apple_Driver_ATA*Macintosh                  74 @ 246
 6:      Apple_FWDriver Macintosh                 200 @ 320
 7:  Apple_Driver_IOKit Macintosh                 512 @ 520
 8:       Apple_Patches Patch Partition           512 @ 1032
 9:           Apple_HFS "Mac OS 9.0.4"        6669754 @ 1544     (  3.2G)
10:           Apple_HFS "Mac OS 10.1 - soon"  6669754 @ 6671298  (  3.2G)
11:           Apple_HFS "bootstrap"             20481 @ 13341052 ( 10.0M)
12:     Apple_UNIX_SVR2 swap                   524289 @ 13361533 (256.0M)
13:     Apple_UNIX_SVR2 untitled              3481601 @ 13885822 (  1.7G)
14:     Apple_UNIX_SVR2 five_one_two_mb       1048576 @ 17367423 (512.0M)
15:          Apple_Free Extra                 1594817 @ 18415999 (778.7M)

Device block size=512, Number of Blocks=20010816 (9.5G)
DeviceType=0x0, DeviceId=0x0
Drivers-
1:  23 @ 64, type=0x1
2:  36 @ 118, type=0xffff
3:  21 @ 192, type=0x701
4:  34 @ 246, type=0xf8ff


parted produces similiar results:
Using /dev/hda
(parted) print
Disk geometry for /dev/hda: 0.000-9770.906 megabytes
Disk label type: mac
Minor    Start       End     Filesystem  Name                  Flags
1          0.000      0.031              Apple
2          0.031      0.057              Macintosh
3          0.058      0.093              Macintosh
4          0.094      0.120              Macintosh
5          0.120      0.156              Macintosh
6          0.156      0.253              Macintosh
7          0.254      0.503              Macintosh
8          0.504      0.753              Patch Partition
9          0.754   3257.469  hfs         untitled
10      3257.470   6514.185  hfs         untitled 2
11      6514.186   6524.186  hfs         untitled
12      6524.186   6780.186  linux-swap  swap                  swap
13      6780.187   8480.187  ext2        untitled
14      8480.187   8992.187  ext2        five_one_two_mb

Now my question is when i try to e2fsck the filesystem, to check it's 
validity, i get this:
 [root@localhost /var]# e2fsck /dev/hda14
e2fsck 1.23, 15-Aug-2001 for EXT2 FS 0.5b, 95/08/09
The filesystem size (according to the superblock) is 330424 blocks
The physical size of the device is 131072 blocks
Either the superblock or the partition table is likely to be corrupt!
Abort<y>? yes

what gives? what is up? i have created and re-created this file system about 
5 times, and yes rebooted after each time.

-thanks for your help



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