Re: [gentoo-user] Dual Boot Partitions
On 02/28/2011 08:25 AM, Mick wrote: On 28 February 2011 13:11, dhk dhk...@optonline.net wrote: Alright, I found a couple thing in Grub that I had wrong. 1) The (hd0,0) for the splash should have been (hd0,2). That fixed the problem with no Grub menu. 2) The Windows menu option was (hd0,1) and should have been (hd0,0) for the Windows boot partition not the Window Operating System. Now when I boot the Grub menu comes up and booting to Windows works. However, I still have the same problem booting to Linux. It chokes on /dev/sda7 which is my root partition and my real_root kernel option. Ah! Our messages crossed in the post! Check that you have compile in the kernel the fs for your root partition and that you have root (hd0,6) in your grub.conf and real_root=/dev/sda7. All works now. It looks like it was in the genkernel. The only thing I changed in the config file was turning off Raid like the documentation said, I must have missed that. So I'm not sure what fixed it, but after I recompiled it worked and in grub it was (hd0,2). Thanks all, dhk
Re: [gentoo-user] Dual Boot Partitions
On 02/27/2011 02:39 PM, Mick wrote: On Sunday 27 February 2011 18:04:26 Florian Philipp wrote: Am 27.02.2011 17:02, schrieb Petri Rosenström: On Sun, Feb 27, 2011 at 5:01 PM, dhk dhk...@optonline.net wrote: First, the observations. I tried to partition my disk with fdisk the way I wanted. I would recommend you use 'parted -a optimal' or gparted for this purpose (see below). 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. I am not sure that you can use LVM2 for MSWindows - as far as I know they use Logical Disk Manager which it is not the same with any other sane LVM implementation - come on now, would you expect them to seek compatibility or interoperability?!! http://en.wikipedia.org/wiki/Logical_Disk_Manager 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. Only some are. The 'parted -a optimal' or gparted will seek to align the end of a partition, but you will find that it may under/overshoot your specified size to achieve that. fdisk et al have some development to do yet. 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). No! Nothing like that. Leave the MS Windows boot partition alone and flagged as boot. MS Windows needs this, while Linux does not. 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. Yep. Create a new partition; e.g. /dev/sda3 and use that as the /boot mountpoint for your Linux OS. This is where the grub fs, Linux OS kernels and related files will be saved. 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. This is correct, MS Windows needs it and it will not boot without it, especially if you retain the MSWindows MBR boot code - although you can install GRUB in the MBR and chainload MSWindows from there with it. HTH. Thanks for all the input. It helped clear up a lot of questions. I spent the weekend installing to Operating Systems and it looks like it almost worked. I think the problem is in the Grub setup, so it should be repairable once I find the mistake. If it's something else, I may be doing this again next weekend. Thanks again, dhk
Re: [gentoo-user] Dual Boot Partitions
On 28 February 2011 11:26, dhk dhk...@optonline.net wrote: Thanks for all the input. It helped clear up a lot of questions. I spent the weekend installing to Operating Systems and it looks like it almost worked. I think the problem is in the Grub setup, so it should be repairable once I find the mistake. If it's something else, I may be doing this again next weekend. Thanks again, dhk What error does it give you? PS. Are you chainloading Gentoo from the MSWindows boot manager, or MSWindows from GRUB? -- Regards, Mick
Re: [gentoo-user] Dual Boot Partitions
On 02/28/2011 06:39 AM, Mick wrote: On 28 February 2011 11:26, dhk dhk...@optonline.net wrote: Thanks for all the input. It helped clear up a lot of questions. I spent the weekend installing to Operating Systems and it looks like it almost worked. I think the problem is in the Grub setup, so it should be repairable once I find the mistake. If it's something else, I may be doing this again next weekend. Thanks again, dhk What error does it give you? PS. Are you chainloading Gentoo from the MSWindows boot manager, or MSWindows from GRUB? I did everything in Grub and haven't touched the MS Windows partitions since the initial install. The problem looks like Grub and some other stuff. Can't boot to Windows or Linux. It looks like the Grub menu never comes up. However, it seems to know about it, because the menu options can still gets executed either after the time out or by pressing Enter. Then some stuff gets printed to the screen and the boot process begins, but it errors before the Operating Systems come up. When trying to boot to Windows, I have no idea why it errors. When trying to boot to Linux, the fsck.ext3 fails on /dev/sda7 which is my root partition. It seems to think it's ext2, but when I checked (by booting to the livecd) with tune2fs -j it says it's already journaling. After the boot fails and I give the root password, I looked in /dev and there aren't any sda partitions and I have 12 on the disk. My disk looks like the following. Filesystem ~Size Mounted /dev/sda1 128M MS Windows 7 boot partition - HPFS/NTFS /dev/sda2 50G MS Windows 7 - HPFS/NTFS /dev/sda3 512M /boot - ext2 /dev/sda4 extended partition /dev/sda5 512M swap /dev/sda6 5G FAT32 /dev/sda7 12G / - ext3 /dev/sda8 50G LVM2 - ext3 /dev/sda9 50G LVM2 - ext3 /dev/sda10 50G LVM2 - ext3 /dev/sda11 50G LVM2 - ext3 /dev/sda12 50G LVM2 - ext3 /dev/mapper/vg-usr 8G /usr /dev/mapper/vg-home 5G /home /dev/mapper/vg-opt 3G /opt /dev/mapper/vg-var 2G /var /dev/mapper/vg-tmp 1G /tmp Thanks dhk
Re: [gentoo-user] Dual Boot Partitions
On 02/28/2011 07:25 AM, dhk wrote: On 02/28/2011 06:39 AM, Mick wrote: On 28 February 2011 11:26, dhk dhk...@optonline.net wrote: Thanks for all the input. It helped clear up a lot of questions. I spent the weekend installing to Operating Systems and it looks like it almost worked. I think the problem is in the Grub setup, so it should be repairable once I find the mistake. If it's something else, I may be doing this again next weekend. Thanks again, dhk What error does it give you? PS. Are you chainloading Gentoo from the MSWindows boot manager, or MSWindows from GRUB? I did everything in Grub and haven't touched the MS Windows partitions since the initial install. The problem looks like Grub and some other stuff. Can't boot to Windows or Linux. It looks like the Grub menu never comes up. However, it seems to know about it, because the menu options can still gets executed either after the time out or by pressing Enter. Then some stuff gets printed to the screen and the boot process begins, but it errors before the Operating Systems come up. When trying to boot to Windows, I have no idea why it errors. When trying to boot to Linux, the fsck.ext3 fails on /dev/sda7 which is my root partition. It seems to think it's ext2, but when I checked (by booting to the livecd) with tune2fs -j it says it's already journaling. After the boot fails and I give the root password, I looked in /dev and there aren't any sda partitions and I have 12 on the disk. My disk looks like the following. Filesystem ~Size Mounted /dev/sda1 128M MS Windows 7 boot partition - HPFS/NTFS /dev/sda2 50G MS Windows 7 - HPFS/NTFS /dev/sda3 512M /boot - ext2 /dev/sda4 extended partition /dev/sda5 512M swap /dev/sda6 5G FAT32 /dev/sda7 12G / - ext3 /dev/sda8 50G LVM2 - ext3 /dev/sda9 50G LVM2 - ext3 /dev/sda10 50G LVM2 - ext3 /dev/sda11 50G LVM2 - ext3 /dev/sda12 50G LVM2 - ext3 /dev/mapper/vg-usr 8G /usr /dev/mapper/vg-home 5G /home /dev/mapper/vg-opt 3G /opt /dev/mapper/vg-var 2G /var /dev/mapper/vg-tmp 1G /tmp Thanks dhk Alright, I found a couple thing in Grub that I had wrong. 1) The (hd0,0) for the splash should have been (hd0,2). That fixed the problem with no Grub menu. 2) The Windows menu option was (hd0,1) and should have been (hd0,0) for the Windows boot partition not the Window Operating System. Now when I boot the Grub menu comes up and booting to Windows works. However, I still have the same problem booting to Linux. It chokes on /dev/sda7 which is my root partition and my real_root kernel option. Thanks, dhk
Re: [gentoo-user] Dual Boot Partitions
On 28 February 2011 12:25, dhk dhk...@optonline.net wrote: I did everything in Grub and haven't touched the MS Windows partitions since the initial install. The problem looks like Grub and some other stuff. Can't boot to Windows or Linux. It looks like the Grub menu never comes up. However, it seems to know about it, because the menu options can still gets executed either after the time out or by pressing Enter. Then some stuff gets printed to the screen and the boot process begins, but it errors before the Operating Systems come up. When trying to boot to Windows, I have no idea why it errors. When trying to boot to Linux, the fsck.ext3 fails on /dev/sda7 which is my root partition. It seems to think it's ext2, but when I checked (by booting to the livecd) with tune2fs -j it says it's already journaling. Consider booting from a LiveCD, check that /dev/sda7 indeed contains the root filesystem, unmount it and run: e2fsck -f -v -c /dev/sda7 After the boot fails and I give the root password, I looked in /dev and there aren't any sda partitions and I have 12 on the disk. My disk looks like the following. From a terminal start grub: == # grub GNU GRUB version 0.97 (640K lower / 9216K upper memory) [ Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists the possible completions of a device/filename. ] grub find /grub/stage1 (hd0,2) --If your /boot is indeed on /dev/sda3 and you have installed grub in there grub root (hd0,2) --as found above grub set (hd0) --install the bootcode in the MBR of the 1st hard drive grub quit == Then you need to set up the /boot/grub/grub.conf file with the correct lines pointing to /dev/sda7 for your Linux root and chainloading /dev/sda1 for your MSWindows OS. As long as you have installed the right modules for chipset and fs in the kernel you should be able to boot. HTH. -- Regards, Mick
Re: [gentoo-user] Dual Boot Partitions
On 28 February 2011 13:11, dhk dhk...@optonline.net wrote: Alright, I found a couple thing in Grub that I had wrong. 1) The (hd0,0) for the splash should have been (hd0,2). That fixed the problem with no Grub menu. 2) The Windows menu option was (hd0,1) and should have been (hd0,0) for the Windows boot partition not the Window Operating System. Now when I boot the Grub menu comes up and booting to Windows works. However, I still have the same problem booting to Linux. It chokes on /dev/sda7 which is my root partition and my real_root kernel option. Ah! Our messages crossed in the post! Check that you have compile in the kernel the fs for your root partition and that you have root (hd0,6) in your grub.conf and real_root=/dev/sda7. -- Regards, Mick
[gentoo-user] Dual Boot Partitions
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 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? I apologize for the long story. Thanks in advance for all the help. dhk
Re: [gentoo-user] Dual Boot Partitions
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. 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. I apologize for the long story. Thanks in advance for all the help. dhk Some links with more information... http://www.gentoo-wiki.info/HOWTO_Dual_boot http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1chap=10 Best regards Petri Rosenström
Re: [gentoo-user] Dual Boot Partitions
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 signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] Dual Boot Partitions
On Sunday 27 February 2011 18:04:26 Florian Philipp wrote: Am 27.02.2011 17:02, schrieb Petri Rosenström: On Sun, Feb 27, 2011 at 5:01 PM, dhk dhk...@optonline.net wrote: First, the observations. I tried to partition my disk with fdisk the way I wanted. I would recommend you use 'parted -a optimal' or gparted for this purpose (see below). 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. I am not sure that you can use LVM2 for MSWindows - as far as I know they use Logical Disk Manager which it is not the same with any other sane LVM implementation - come on now, would you expect them to seek compatibility or interoperability?!! http://en.wikipedia.org/wiki/Logical_Disk_Manager 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. Only some are. The 'parted -a optimal' or gparted will seek to align the end of a partition, but you will find that it may under/overshoot your specified size to achieve that. fdisk et al have some development to do yet. 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). No! Nothing like that. Leave the MS Windows boot partition alone and flagged as boot. MS Windows needs this, while Linux does not. 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. Yep. Create a new partition; e.g. /dev/sda3 and use that as the /boot mountpoint for your Linux OS. This is where the grub fs, Linux OS kernels and related files will be saved. 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. This is correct, MS Windows needs it and it will not boot without it, especially if you retain the MSWindows MBR boot code - although you can install GRUB in the MBR and chainload MSWindows from there with it. HTH. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
