Am 27.02.2011 17:02, schrieb Petri Rosenström: > On Sun, Feb 27, 2011 at 5:01 PM, dhk <dhk...@optonline.net> wrote: >> I have a new laptop that I need to set up for dual booting. As much as >> I despise Microsoft, I have to use it for certain things. Such as some >> obscure peripherals, like my slide photo scanner, it doesn't support >> Linux and TD Ameritrade's streaming Java tools don't work the same as on >> Linux. Until corporation's smarten up Microsoft will be a problem. >> >> The setup for dual booting seem pretty straight forward. Install >> windows first, then Linux, and modify the boot loader. However, I have >> a couple of question and observations. >> >> First, the observations. I tried to partition my disk with fdisk the >> way I wanted. It had the usual Linux partitions and a partition that I >> was going to use for Window 7. I wanted to make this an LVM2 partition, >> but that didn't work; I guess that was too ambitious. Then I just made >> it an ordinary static HPFS/NTFS partition on /dev/sda5. When installing >> Windows 7 it wouldn't install on that partition. I deleted all the >> partitions and just installed it on the first 50Gigs of the disk. >> >> Second, the questions. The Windows 7 install on the first 50Gigs of the >> disk needed to created two partitions. The first was a very small boot >> partition that I increased to 128Megs, and the second is the rest of >> Windows 7. Now when I boot to the livecd to partition the rest of the >> disk for Gentoo fdisk says "Partition 1 does not end on a cylinder >> boundary." Is this a problem? The other big question is: what do I do > Dunno, it might be that win7 changed the amount of heads/sectors that > could give that notice from fdisk. I would not be to worrified about > it (Installing windows would be more horrifying). If you have a > traditional hd then the worst thing I think might be that reads/writes > would be slower. >
If I'm not mistaken, this alignment is actually a good thing. It is related to the transition from 512 B blocks to 4 kB and also helps alignments for SSDs. In this regard, Win 7 behaves very clever and really much better than the old and proven Linux tools (unless you know what you are doing and are aware of every issue). IMHO it is a real shame that most Linux tools are still behind in this regard. If you think you have an HDD with 4kB blocks, ask and I can provide you with some links on that topic. >> about the first partition in the partition table? It is an HPFS/NTFS >> partition and has been toggled bootable. It also has some stuff in it >> that looks like it's important to Windows: a BOOTSECT.BAK file, a Boot >> directory, a System Volume Information directory, and a bootmgr file. >> Now for my Gentoo install, how and where do I make a /boot partition? >> Do I replace the Windows 7 boot partition with /boot? If so, what >> happens to the contents? or Do I make a /boot partition on /dev/sda3 >> and toggle the bootable flag there? > > Something like that. You could install gentoo on one partition (I > don't recommend). > > Just make partitions like you would do without windows. When you do > the grub-install script or by hand grub links the boot to the > partition where boot exists. You should not remove or change the > windows partitions or the data windows will probably brake when you > do. > AFAIK, grub does not need the bootable flag. Leave it alone. Maybe Windows needs it, maybe it is just for good measure, I don't know. Hope this helps, Florian Philipp
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