On Tue, 2010-08-31 at 07:38 -0600, Greg Woods wrote: > This is in regard to the issue that, when Linux is hibernated, upon > reboot the thaw starts immediately and the grub menu is not presented. > > I am now absolutely convinced this is not a BIOS issue, it is a kernel > or boot loader issue. > > I worked around it by adding a level of indirection to the boot process. > To do this requires that you have at least one Linux partition that is > not / or /boot. > > The basic idea is that Linux is booted with a chainloader, same as > Windows. So the main grub menu gives you a choice of Linux or Windows, > and both are implemented with "chainloader +1" stanzas. It works, but I > don't recommend trying this unless you are fairly familiar with how the > boot loader works, and are comfortable reinstalling the boot loader from > a rescue CD/DVD if something goes wrong. > > The high-level instructions go like this: > > 1) In your extra Linux partition, create "boot" and "boot/grub" > directories. > 2) Copy the contents of /boot/grub to this new grub directory. > 3) Edit the boot/grub/grub.conf file in this new directory so that > Windows and Linux are presented as "chainloader +1" stanzas. > 4) Install grub in the master boot record, pointing to this partition > 5) Install grub in the first sector of your root partition, with the > usual kernel choices. > > When this is done, at boot time you get a choice of Linux or Windows. If > you select Linux, the second boot loader comes up with the usual choice > of kernels. If Linux is hibernated, you can then boot and run Windows > just fine (my Windows install doesn't have a hibernate option so I > wasn't able to test hibernating Windows in this scenario). If you boot > again and select Linux, instead of getting the choice of kernels, it > immediately resumes the hibernated image. This is how I *want* it to > work, so I have left it this way. > > Suppose you have this: > > /dev/sda1 Windows > /dev/sda2 Linux root > /dev/sda3 Linux /local > > Then /boot/grub gets copied to /local/boot/grub, then > edit /local/boot/grub/grub.conf so that you have something like this: > > title Linux > root (hd0,1) > chainloader +1 > title Windows > root (hd0,0) > chainloader +1 > > Then run: > > # grub > [...] > grub> root (hd0,2) > grub> setup (hd0) > > This loads the master boot record that points to /dev/sda2, the > chainloader configuration. > > Now edit /boot/grub/grub.conf and remove the Windows stanza (you don't > need it here any more). Then run: > > # grub > [...] > grub> root (hd0,1) > grub> setup (hd0,1) > > This loads grub into the first sector of the Linux root partition, > pointing at that partition and presenting the usual choice of kernels. > > This has worked great for me. I can now hibernate Linux, boot into > Windows, and later resume from the hibernated Linux image. > > --Greg > > A more elegant solution would be to hack the script responsible for modifying grub.conf at hibernate time, and put an reasonable timeout there (let's say 5-10 secs) to let you choose the windows entry. Of course, you will have to redo this hack everytime pm-utils will update. HTH, -- Calin Key fingerprint = 37B8 0DA5 9B2A 8554 FB2B 4145 5DC1 15DD A3EF E857 ================================================= Children's talent to endure stems from their ignorance of alternatives. -- Maya Angelou, "I Know Why the Caged Bird Sings" -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
