Re: [gentoo-user] Why grub can't load win kernel
On Wednesday 05 Oct 2011 16:32:10 Lavender wrote: > The configuration of win kernel in grub.conf is like below: > > rootnoverify (hd0,0) > makeactive > chainloader +1 Assuming that your MSWindows OS is on the first partition of the first (master) disk then the above is correct and grub should boot it fine; i.e. MSWindows is on /dev/sda1 > It worked yesterday , but after I rebuilding grub software, it can't work. > I don't know why, it still can boot gentoo kernel, I am confused,because > grub only can do operations to MBR, it can not influence contents on > windows partition. This is not entirely correct. GRUB will write its boot code where-ever *you* tell it to write it ... For example if you installed it on MSWindows' partition - instead of the disk MBR - you will most likely not be able to boot MSWindows! This is because you have overwritten the partition table with GRUB's code and GRUB cannot natively boot MSWindows. If for example you ran: grub-install /dev/sda1 instead of the correct stanza of: grub-install /dev/sda you would have written GRUB on the wrong place, the first partition boot record, instead of the disk's Master Boot Record. Of course your old GRUB code in the MBR is still there and it happily boots Linux. > I also tried boot manually in grub command interface, but after showing > "load stage2" it goes back to grub > I'm gonna pissed. I have > many important things in windows system, will someone figure it out? Calm down. Your data is still there. Just the partition table has been overwritten - if indeed you typed the wrong device as I suspect above. So the command you need is fixboot and you need to run this from a MSWindows installation CD/USB stick on the first partition. Have a look on the Internet for more details on the fixboot command and its modern equivalent (if you're running Windows7). Also have a look on the Internet for MSWindows CDs or USB sticks to be able to run the command if you don't have one handy. HTH. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Why grub can't load win kernel
Am Wed, 5 Oct 2011 21:20:07 +0200 schrieb Alan McKinnon : > > which of the grub USE flags do you think could cause this behavior? > > > > I have no idea. > > I'm asking for full fault report information, mentioning everything > I can think of that could be relevant. You know, the things one should > mention in the first post instead of "stuff don't work. Why?" > > yeah, there could have been more info included...
Re: [gentoo-user] Why grub can't load win kernel
On Wed, 5 Oct 2011 18:26:31 +0200 Jonas de Buhr wrote: > Am Wed, 5 Oct 2011 17:39:59 +0200 > schrieb Alan McKinnon : > > > What version of grub, and what options (USE flags) was grub built > > with? > > which of the grub USE flags do you think could cause this behavior? > I have no idea. I'm asking for full fault report information, mentioning everything I can think of that could be relevant. You know, the things one should mention in the first post instead of "stuff don't work. Why?" -- Alan McKinnnon alan.mckin...@gmail.com
Re: [gentoo-user] Why grub can't load win kernel
Am Wed, 5 Oct 2011 23:48:09 +0800 schrieb "Lavender" <448463...@qq.com>: > Sorry, I'm a gentoo newcomer, so I am totally not familar with this > OS. Does USE make sense with grub ? And in the building there is no > error, I had grub-install done. which was the *exact* commandline for grub-install? please copy it from your shell history grep grub-install ~/.bash_history and show us the output. also please send in the output of fdisk -l and your complete grub.conf > Grub boot interface can show up , I > can choose which OS to boot, but I couldn't boot win , what is the > problem in your opinion? > -- Original -- > From: "Alan McKinnon"; > Date: Wed, Oct 5, 2011 11:39 PM > To: "gentoo-user"; > > Subject: Re: [gentoo-user] Why grub can't load win kernel > > > On Wed, 5 Oct 2011 23:32:10 +0800 > "Lavender" <448463...@qq.com> wrote: > > > The configuration of win kernel in grub.conf is like below: > > > > rootnoverify (hd0,0) > > makeactive > > chainloader +1 > > > > It worked yesterday , but after I rebuilding grub software, it > > can't work. I don't know why, it still can boot gentoo kernel, I am > > confused,because grub only can do operations to MBR, it can not > > influence contents on windows partition. I also tried boot manually > > in grub command interface, but after showing "load stage2" it goes > > back to grub > I'm gonna pissed. I have many important > > things in windows system, will someone figure it out? > > What version of grub, and what options (USE flags) was grub built > with? > > Any errors from the build of grub? > (check /var/log/portage/elog) > > Did you run grub-install like the ebuild tells you to do at the end? >
Re: [gentoo-user] Why grub can't load win kernel
Am Wed, 5 Oct 2011 17:39:59 +0200 schrieb Alan McKinnon : > What version of grub, and what options (USE flags) was grub built > with? which of the grub USE flags do you think could cause this behavior?
Re: [gentoo-user] Why grub can't load win kernel
Sorry, I'm a gentoo newcomer, so I am totally not familar with this OS. Does USE make sense with grub ? And in the building there is no error, I had grub-install done. Grub boot interface can show up , I can choose which OS to boot, but I couldn't boot win , what is the problem in your opinion? -- Original -- From: "Alan McKinnon"; Date: Wed, Oct 5, 2011 11:39 PM To: "gentoo-user"; Subject: Re: [gentoo-user] Why grub can't load win kernel On Wed, 5 Oct 2011 23:32:10 +0800 "Lavender" <448463...@qq.com> wrote: > The configuration of win kernel in grub.conf is like below: > > rootnoverify (hd0,0) > makeactive > chainloader +1 > > It worked yesterday , but after I rebuilding grub software, it can't > work. I don't know why, it still can boot gentoo kernel, I am > confused,because grub only can do operations to MBR, it can not > influence contents on windows partition. I also tried boot manually > in grub command interface, but after showing "load stage2" it goes > back to grub > I'm gonna pissed. I have many important > things in windows system, will someone figure it out? What version of grub, and what options (USE flags) was grub built with? Any errors from the build of grub? (check /var/log/portage/elog) Did you run grub-install like the ebuild tells you to do at the end? -- Alan McKinnnon alan.mckin...@gmail.com
Re: [gentoo-user] Why grub can't load win kernel
On Wed, 5 Oct 2011 23:32:10 +0800 "Lavender" <448463...@qq.com> wrote: > The configuration of win kernel in grub.conf is like below: > > rootnoverify (hd0,0) > makeactive > chainloader +1 > > It worked yesterday , but after I rebuilding grub software, it can't > work. I don't know why, it still can boot gentoo kernel, I am > confused,because grub only can do operations to MBR, it can not > influence contents on windows partition. I also tried boot manually > in grub command interface, but after showing "load stage2" it goes > back to grub > I'm gonna pissed. I have many important > things in windows system, will someone figure it out? What version of grub, and what options (USE flags) was grub built with? Any errors from the build of grub? (check /var/log/portage/elog) Did you run grub-install like the ebuild tells you to do at the end? -- Alan McKinnnon alan.mckin...@gmail.com
[gentoo-user] Why grub can't load win kernel
The configuration of win kernel in grub.conf is like below: rootnoverify (hd0,0) makeactive chainloader +1 It worked yesterday , but after I rebuilding grub software, it can't work. I don't know why, it still can boot gentoo kernel, I am confused,because grub only can do operations to MBR, it can not influence contents on windows partition. I also tried boot manually in grub command interface, but after showing "load stage2" it goes back to grub > I'm gonna pissed. I have many important things in windows system, will someone figure it out?
