03-05-2010
Hi pludi,
This sounds complicated. If thts true, then its probably impossible to figure out what grub sees sdb as. But I feel the most obvious is that the first external disk is detected as sdb and grub sees it most likely as (hd1) afaik. The rest follows as sdc sdd.and so on.
"Background: I've had a SATA disc identified as /dev/sda or hd0 with Linux running, but couldn't boot from it as GRUB saw it after an IDE disk at hd1. So none of the entries matched anymore.
Reply With Quote"
what was /dev/sda mapped to in device.map ? was it hd0 and still grub saw it as hd1?
Kind Regards,
Gaurav.
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GRUB(8) FSF GRUB(8)
NAME
grub - the grub shell
SYNOPSIS
grub [OPTION]...
DESCRIPTION
Enter the GRand Unified Bootloader command shell.
--batch
turn on batch mode for non-interactive use
--boot-drive=DRIVE
specify stage2 boot_drive [default=0x0]
--config-file=FILE
specify stage2 config_file [default=/boot/grub/menu.lst]
--device-map=FILE
use the device map file FILE
--help display this message and exit
--hold wait until a debugger will attach
--install-partition=PAR
specify stage2 install_partition [default=0x20000]
--no-config-file
do not use the config file
--no-curses
do not use curses
--no-floppy
do not probe any floppy drive
--no-pager
do not use internal pager
--preset-menu
use the preset menu
--probe-second-floppy
probe the second floppy drive
--read-only
do not write anything to devices
--verbose
print verbose messages
--version
print version information and exit
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
update-grub(8), grub-install(8).
The full documentation for grub is maintained as a Texinfo manual in the grub-legacy-doc package. If the info and grub programs are prop-
erly installed at your site, the command
info grub
should give you access to the complete manual.
grub (GNU GRUB 0.97) January 2013 GRUB(8)