Error Grub

Bauke Jan Douma bjdouma at xs4all.nl
Thu Jan 18 23:31:25 PST 2007


Vince Greg wrote on 19-01-07 07:42:
> Thank you for these information but can you give me exactly the complete
> command of fdisk for my partition because I don't want to lose all my work
> 
> Is it dangerous for my datas and all the work I do???

Yes, this can be dangerous. Be sure to backup everything you can't
readily get on the net).


Here's output from running fdisk on a device (output created with
the help of script(1)):

The <== indicates points where I've entered a command (p=
print partition table, t=change partition type).

Note: in this session I am not actually updating the partition
table: aside from the fact that I entered '83', which is what
the partition /already/ was, I am not doing the final 'write'
(with 'w'), to write the partition table and all of the changes
made.  I would have done that just before the 'q'.

(note: to get just a list of the current partition table,
you can do
$> fdisk -l /dev/hdX
from the command-line).


Script started on Fri Jan 19 08:18:31 2007
$> fdisk /dev/hdb

The number of cylinders for this disk is set to 30515.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
    (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p                         <==

Disk /dev/hdb: 251.0 GB, 251000193024 bytes
255 heads, 63 sectors/track, 30515 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/hdb1               1       30515   245111706   83  Linux

Command (m for help): t                         <==
Selected partition 1
Hex code (type L to list codes): L              <==

  0  Empty           1c  Hidden W95 FAT3 70  DiskSecure Mult bb  Boot Wizard hid
  1  FAT12           1e  Hidden W95 FAT1 75  PC/IX           be  Solaris boot
  2  XENIX root      24  NEC DOS         80  Old Minix       c1  DRDOS/sec (FAT-
  3  XENIX usr       39  Plan 9          81  Minix / old Lin c4  DRDOS/sec (FAT-
  4  FAT16 <32M      3c  PartitionMagic  82  Linux swap / So c6  DRDOS/sec (FAT-
  5  Extended        40  Venix 80286     83  Linux           c7  Syrinx
  6  FAT16           41  PPC PReP Boot   84  OS/2 hidden C:  da  Non-FS data
  7  HPFS/NTFS       42  SFS             85  Linux extended  db  CP/M / CTOS / .
  8  AIX             4d  QNX4.x          86  NTFS volume set de  Dell Utility
  9  AIX bootable    4e  QNX4.x 2nd part 87  NTFS volume set df  BootIt
  a  OS/2 Boot Manag 4f  QNX4.x 3rd part 8e  Linux LVM       e1  DOS access
  b  W95 FAT32       50  OnTrack DM      93  Amoeba          e3  DOS R/O
  c  W95 FAT32 (LBA) 51  OnTrack DM6 Aux 94  Amoeba BBT      e4  SpeedStor
  e  W95 FAT16 (LBA) 52  CP/M            9f  BSD/OS          eb  BeOS fs
  f  W95 Ext'd (LBA) 53  OnTrack DM6 Aux a0  IBM Thinkpad hi ee  EFI GPT
10  OPUS            54  OnTrackDM6      a5  FreeBSD         ef  EFI (FAT-12/16/
11  Hidden FAT12    55  EZ-Drive        a6  OpenBSD         f0  Linux/PA-RISC b
12  Compaq diagnost 56  Golden Bow      a7  NeXTSTEP        f1  SpeedStor
14  Hidden FAT16 <3 5c  Priam Edisk     a8  Darwin UFS      f4  SpeedStor
16  Hidden FAT16    61  SpeedStor       a9  NetBSD          f2  DOS secondary
17  Hidden HPFS/NTF 63  GNU HURD or Sys ab  Darwin boot     fd  Linux raid auto
18  AST SmartSleep  64  Novell Netware  b7  BSDI fs         fe  LANstep
1b  Hidden W95 FAT3 65  Novell Netware  b8  BSDI swap       ff  BBT
Hex code (type L to list codes): 83

Command (m for help): p                         <==

Disk /dev/hdb: 251.0 GB, 251000193024 bytes
255 heads, 63 sectors/track, 30515 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/hdb1               1       30515   245111706   83  Linux

Command (m for help): q                         <==

$> fdisk -l /dev/hdb

Disk /dev/hdb: 251.0 GB, 251000193024 bytes
255 heads, 63 sectors/track, 30515 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/hdb1               1       30515   245111706   83  Linux
$>





bjd





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