Am Samstag, den 11.07.2009, 18:20 +0200 schrieb Michal Suchanek: > 2009/7/11 Bean <bean12...@gmail.com>: > > On Sat, Jul 11, 2009 at 5:27 AM, BandiPat<magicpag...@earthlink.net> wrote: > >> Actually Zenwalk provides os-prober as well. The gentleman that provides > >> the installer of our Grub2 uses os-prober to detect all OS's installed, so > >> they may be added to the original grub.cfg. Works very well, although not > >> perfect, but we are pretty pleased with the results thus far. > >> > >> We also do not have to run any of the Grub2 programs after installing new > >> kernels. The developer of our installer patched Grub2 for Zenwalk, so that > >> no changes were necessary after kernel updates. He tried to offer this to > >> you guys as well earlier, but got little response, so we use it for Zenwalk > >> exclusively at the moment. > > > > Hi, > > > > IIRC, os-prober is a collection of shell script to detect os, but grub > > already have them in util/grub.d. This method is based on linux, so > > you need to enter linux in order to update the menu. On the other > > hand, lua script generate the menu inside grub, there is no need to > > enter any os. > > > > Another problem is the drive number. It's impossible to decide bios > > drive number from inside linux, so we can't insert the correct > > drivemap command required to boot DOS/Windows from secondary drive. > > This information must be gathered at boot time. > > > > The other problem is that scripts like os-prober that use linux > filesystem code for probing filesystems destroy your data. > > Linux cannot mount journalled filesystems readonly. It always modifies > them. The extent of the modifications and the impact may vary > depending on the state of the filesystem (clean/mounted) and the way > you are going to use it in the future (resume the system/fresh boot) > but until Linux people implement readonly filesystem support any Linux > based os-probers cannot be recommended. >
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/filesystems/ext3.txt;hb=HEAD ext3 has a noload option which disables journal recovery and with ro,noload used it's really read-only. I think it was added recently with 2.6.30 or something like that. -- Felix Zielcke _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
