Dual Boot
Will GRUB allow me to hibernate Linux and activate another operating system (such as Windows XP) that I hibernated earlier, i.e. a !DualHibernate rather than a DualBoot?
Nothing will prevent you to hibernating (GRUB isn't aware that your host is suspended). However, make sure you don't mount the same partition (RW) under any two suspended OS !
Is there a way to install GRUB in the MasterBootRecord from DOS or Windows XP, i.e. a utility similar to rawrite.exe or fdisk.exe that write a GRUB MBR? What I want here is to install Linux without having a bootable floppy
There is/was a win32 Version of GRUB, i used it to install linux from Windows 2000 , but i am not sure what exactly the source is ;-) (google for grubwin32) Just unzip grubwin32 to c:\ then run c:\boot\grub\w32grub This would patch the necessary files(under XP, not linux). Then add :
c:\boot\stage1="GRUB"
to c:\boot.ini
And you now have a grub boot loader on your XP system.
When I upgraded from grub to grub2 I lost an entry to XP/WP7 , how can I recover the menu entry to boot there?
You have to install os-prober, make sure its enabled in grub2 configuration and sync grub2.
apt-get install os-prober
Then edit /etc/default/grub and make sure you have a line like
GRUB_DISABLE_OS_PROBER=false
Finally run update-grub2
By default grub2 in debian will not add 'resume=/dev/swap-partition' option.
But if you want to perform this by default you can edit /etc/grub.d/10_linux file and make some changes there:
Replace
linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args}
with this
linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args} resume=`swapon -s | grep '/dev/sd.[0-9]' -o`
This will add your first swap partition to all found linux entries.
