Форум портала Metropolis

BOOT ERRORS
 The  boot process takes place in(1,8) two stages.  The first stage loader is
 a single sector, and is loaded by the BIOS or by the loader in(1,8) the MBR.
 It  loads  the multi-sector second stage loader, but is very space lim-
 ited.  When the first stage loader gets(3,n) control, it  types  the  letter
 "L"; when it is ready to transfer control to the second stage loader it
 types the letter "I".  If any error(8,n) occurs, like a disk read(2,n,1 builtins) error(8,n),  it
 will  put  out  a  hexadecimil  error(8,n) code, and then it will re-try the
 operation.  All hex error(8,n) codes are BIOS return values, except for  the
 lilo-generated 40, 99 and 9A.  A partial list of error(8,n) codes follows:


     00  no error(8,n)
     01  invalid disk command
     02  address mark not found
     03  disk write-protected

     04  sector not found
     06  floppy disk removed
     08  DMA overrun
     0A  bad sector flag
     0B  bad track flag
     20  controller failure
     40  seek failure (BIOS)
     40  cylinder>1023 (LILO)
     99  invalid second stage index sector (LILO)
     9A  no second stage loader signature (LILO)
     AA  drive not ready
     FF  sense operation failed

 Error  code  40 is generated by the BIOS, or by LILO during the conver-
 sion of a linear (24-bit) disk address to a geometric (C:H:S)  address.
 On  older  systems which do not support lba32 (32-bit) addressing, this
 error(8,n) may also be generated.  Errors 99 and 9A  usually  mean  the  map
 file(1,n)  (-m  or map=) is not readable, likely because LILO was not re-run
 after some system change, or there is a geometry mis-match between what
 LILO  used (lilo(5,8) -v3 to display) and what is actually being used by the
 BIOS (one of the lilo(5,8) diagnostic disks, available in(1,8) the source distri-
 bution, may be needed to diagnose this problem).

 When the second stage loader has received control from the first stage,
 it prints the letter "L", and when it has initialized itself, including
 verifying the "Descriptor Table" - the list of kernels/others to boot -
 it will print the letter "O", to form the full word "LILO",  in(1,8)  upper-
 case.

 All  second  stage  loader  error(8,n) messages are English text, and try to
 pinpoint, more or less(1,3) successfully, the point of failure.