Re: First install: Grub doesn't find partitions
Hi again, Am Montag, 29. Okt 2007, 02:38:08 +0100 schrieb Bertram Scharpf: I just installed OpenBSD on a i386 from cd41.iso as described in the FAQ, chapter 4. When I restart the system from the CD all OpenBSD partitions show up properly and I can chroot into /mnt after I mounted them. However, Grub refuses to recognize any of the OpenBSD partitions. A Linux resides on the same disk that cannot mount any of these partitions either. Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e And here is what I entered into `disklabel': start size mountpoint wd1a 6323185 524159/ wd1b 6847344 524160(swap) wd1d 7371504 524160/tmp wd1e 7895664 12582864/usr wd1f 204785288388576/home First of all thanks to the off-list responders. I already considered the chainloader option but as I installed no bootloader this probably would not work. I examined the Grub source code to find out where it looks for BSD partitions. I found there is a sector containing the BSD magic label and appropriate partitioning info. It's sector 1, the second one on the disk == the first in slice /dev/hdb1 or (hd1,0), respectively. Arrgh! Sectors 6323185 and 6323186 are still untouched. I tried to use the 'b' command in 'disklabel -E ..' but nothing went better. I dd'ed sector 1 to 6323186 and voila - there they are. Could this be the correct way that I first have to damage another partition and then manually have to move a sector? When booting this system I run into the next problem: panic: /boot too old: upgrade! Therefore I would like to try to install a bootloader and chainload it. But with a 'disklabel' that overwrites existing partitions? Do I have to get used to struggle with such fundamental problems when I proceed with OpenBSD? Thank for reading so far, Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
Re: First install: Grub doesn't find partitions
Hi, I don't quite understand what you're doing? Are you looking for a dual-boot with linux via grub? If so, have a look at www.aei.mpg.de/~pau/zen_process_obsd.html Read it in detail. If not, just forget this mail. Cheers, Pau 2007/10/29, Bertram Scharpf [EMAIL PROTECTED]: Hi again, Am Montag, 29. Okt 2007, 02:38:08 +0100 schrieb Bertram Scharpf: I just installed OpenBSD on a i386 from cd41.iso as described in the FAQ, chapter 4. When I restart the system from the CD all OpenBSD partitions show up properly and I can chroot into /mnt after I mounted them. However, Grub refuses to recognize any of the OpenBSD partitions. A Linux resides on the same disk that cannot mount any of these partitions either. Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e And here is what I entered into `disklabel': start size mountpoint wd1a 6323185 524159/ wd1b 6847344 524160(swap) wd1d 7371504 524160/tmp wd1e 7895664 12582864/usr wd1f 204785288388576/home First of all thanks to the off-list responders. I already considered the chainloader option but as I installed no bootloader this probably would not work. I examined the Grub source code to find out where it looks for BSD partitions. I found there is a sector containing the BSD magic label and appropriate partitioning info. It's sector 1, the second one on the disk == the first in slice /dev/hdb1 or (hd1,0), respectively. Arrgh! Sectors 6323185 and 6323186 are still untouched. I tried to use the 'b' command in 'disklabel -E ..' but nothing went better. I dd'ed sector 1 to 6323186 and voila - there they are. Could this be the correct way that I first have to damage another partition and then manually have to move a sector? When booting this system I run into the next problem: panic: /boot too old: upgrade! Therefore I would like to try to install a bootloader and chainload it. But with a 'disklabel' that overwrites existing partitions? Do I have to get used to struggle with such fundamental problems when I proceed with OpenBSD? Thank for reading so far, Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
Re: First install: Grub doesn't find partitions
Hi, Am Montag, 29. Okt 2007, 11:01:44 +0100 schrieb Pau Amaro-Seoane: I don't quite understand what you're doing? Are you looking for a dual-boot with linux via grub? Yes. I have a Linux box here with Grub. Admittedly the first hard disk contains a Windows that gets used sometimes by other persons. What else should I do? Buy another machine while I have unused disk space here? Migrate back to Windows before I try out OpenBSD? If so, have a look at www.aei.mpg.de/~pau/zen_process_obsd.html Read it in detail. If not, just forget this mail. This is exactly what I did. The first difference appears while partitioning. I quote the document you told me I should have a look at: Here is the partition information you chose: Disk: wd0 geometry: 969/128/63 [7814016 Sectors] #: idC H S -C H S [ start: size ] .. *2: A6 304 103 1 - 968 25 63 [ 2457945: 5349645 ] OpenBSD .. ... Treating sectors 2457945-7807590 as the OpenBSD portion of the disk. You can use the 'b' command to change this. When I run the installation this reads: Treating sectors 63-120103200 as the OpenBSD portion of the disk. You can use the 'b' command to change this. Unfortunately, when I use the 'b' command, this won't change. The partition table is written to sector 1. Not 63. Not 64. Not 6323185. Not 6323186. I not even find a way to display that message again after I changed the portion. The document you pointed to doesn't mention a command to display what the portion is. I tried it several times. I booted the CD, ran disklabel/install/..., booted linux, dd|od'ed the sectors (there's no od on the CD), re-booted the CD, ... Yes, I do read documentation and I read it in detail. I still will be glad if you point me to some new information. Telling me to read again and again the same doesn't make the disklabel command behave different. Please do you read the reports I post in detail. Bertram 2007/10/29, Bertram Scharpf [EMAIL PROTECTED]: Hi again, Am Montag, 29. Okt 2007, 02:38:08 +0100 schrieb Bertram Scharpf: I just installed OpenBSD on a i386 from cd41.iso as described in the FAQ, chapter 4. When I restart the system from the CD all OpenBSD partitions show up properly and I can chroot into /mnt after I mounted them. However, Grub refuses to recognize any of the OpenBSD partitions. A Linux resides on the same disk that cannot mount any of these partitions either. Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e And here is what I entered into `disklabel': start size mountpoint wd1a 6323185 524159/ wd1b 6847344 524160(swap) wd1d 7371504 524160/tmp wd1e 7895664 12582864/usr wd1f 204785288388576/home First of all thanks to the off-list responders. I already considered the chainloader option but as I installed no bootloader this probably would not work. I examined the Grub source code to find out where it looks for BSD partitions. I found there is a sector containing the BSD magic label and appropriate partitioning info. It's sector 1, the second one on the disk == the first in slice /dev/hdb1 or (hd1,0), respectively. Arrgh! Sectors 6323185 and 6323186 are still untouched. I tried to use the 'b' command in 'disklabel -E ..' but nothing went better. I dd'ed sector 1 to 6323186 and voila - there they are. Could this be the correct way that I first have to damage another partition and then manually have to move a sector? When booting this system I run into the next problem: panic: /boot too old: upgrade! Therefore I would like to try to install a bootloader and chainload it. But with a 'disklabel' that overwrites existing partitions? Do I have to get used to struggle with such fundamental problems when I proceed with OpenBSD? Thank for reading so far, Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
Re: First install: Grub doesn't find partitions
is it a recent grub? if you're reading grub source I will assume you know more about it than I do, but am writing this on a box which boots debian/openbsd/xp without problems, from grub installed circa 6 months ago. I certainly did not dd any sectors around. I can send you my grub conf when I reboot next. mike
Re: First install: Grub doesn't find partitions
I am writing this from a dual-boot system with linux only and I never had your problem. 2007/10/29, michael hamerski [EMAIL PROTECTED]: is it a recent grub? if you're reading grub source I will assume you know more about it than I do, but am writing this on a box which boots debian/openbsd/xp without problems, from grub installed circa 6 months ago. I certainly did not dd any sectors around. I can send you my grub conf when I reboot next. mike
Re: First install: Grub doesn't find partitions
indeed... you seem not to have read the site I pointed to previously. Don't say you have read it if you didn't. The information is there. Do what Andrew says and tag it as A6; i.e. openbsd from the linux fdisk This is *also* written in the web page 2007/10/29, Andrew Daugherity [EMAIL PROTECTED]: On 10/28/07, Bertram Scharpf [EMAIL PROTECTED] wrote: grub root (hd1,^I Possible partitions are: Partition num: 0, Filesystem type is ext2fs, partition type 0x83 Partition num: 1, Filesystem type unknown, partition type 0x82 Partition num: 4, Filesystem type is ext2fs, partition type 0x83 Partition num: 5, No BSD sub-partition found, partition type 0xa6 Partition num: 6, Filesystem type unknown, partition type 0x8e grub root (hd1,5,a) Error 5: Partition table invalid or corrupt grub rootnoverify (hd1,5,a) grub cat / Error 17: Cannot mount selected partition Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e I think this is your problem -- the OpenBSD partition needs to be a primary partition (hda1-hda4 in Linux terminology, or (hd0,1) - (hd0,3) in GRUB language, and you have it as an extended partition (hdb6). This is not supported. Reallocated your fdisk partitions so the OpenBSD partition is a primary partition and reinstall (you may have to resize your extended partition, ID=5, to make room). Andrew
Re: First install: Grub doesn't find partitions
On 10/28/07, Bertram Scharpf [EMAIL PROTECTED] wrote: grub root (hd1,^I Possible partitions are: Partition num: 0, Filesystem type is ext2fs, partition type 0x83 Partition num: 1, Filesystem type unknown, partition type 0x82 Partition num: 4, Filesystem type is ext2fs, partition type 0x83 Partition num: 5, No BSD sub-partition found, partition type 0xa6 Partition num: 6, Filesystem type unknown, partition type 0x8e grub root (hd1,5,a) Error 5: Partition table invalid or corrupt grub rootnoverify (hd1,5,a) grub cat / Error 17: Cannot mount selected partition Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e I think this is your problem -- the OpenBSD partition needs to be a primary partition (hda1-hda4 in Linux terminology, or (hd0,1) - (hd0,3) in GRUB language, and you have it as an extended partition (hdb6). This is not supported. Reallocated your fdisk partitions so the OpenBSD partition is a primary partition and reinstall (you may have to resize your extended partition, ID=5, to make room). Andrew
Re: First install: Grub doesn't find partitions
Hi, Am Montag, 29. Okt 2007, 11:54:23 -0500 schrieb Andrew Daugherity: On 10/28/07, Bertram Scharpf [EMAIL PROTECTED] wrote: grub root (hd1,^I ... Partition num: 5, No BSD sub-partition found, partition type 0xa6 ... Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e I think this is your problem -- the OpenBSD partition needs to be a primary partition (hda1-hda4 in Linux terminology, or (hd0,1) - (hd0,3) in GRUB language, and you have it as an extended partition (hdb6). This is not supported. Reallocated your fdisk partitions so the OpenBSD partition is a primary partition and reinstall (you may have to resize your extended partition, ID=5, to make room). Those @#$! extended partitions! It's really time for me to get rid of that kind of programming style. I tried it out on another machine where I had a free primary partition. Hoolay--it boots! Moving partitions around on the machine described above will take some time but I will try it in any case and I will report. Thanks a lot for your patience when I became fretful. Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
Re: First install: Grub doesn't find partitions
Thanks a lot for your patience when I became fretful. I also become very usually fretful when something that SHOULD be working is as stubborn as to refuse to do it. I know it. Oh, yes... and how... glad to read that it worked for you! Pau 2007/10/29, Bertram Scharpf [EMAIL PROTECTED]: Hi, Am Montag, 29. Okt 2007, 11:54:23 -0500 schrieb Andrew Daugherity: On 10/28/07, Bertram Scharpf [EMAIL PROTECTED] wrote: grub root (hd1,^I ... Partition num: 5, No BSD sub-partition found, partition type 0xa6 ... Here is a `sfdisk' (Linux) output: /dev/hdb1 : start=1, size=32255, Id=83 /dev/hdb2 : start=32256, size= 2096640, Id=82 /dev/hdb3 : start= 2128896, size=117974304, Id= 5 /dev/hdb4 : start=0, size=0, Id= 0 /dev/hdb5 : start= 2128897, size= 4194287, Id=83 /dev/hdb6 : start= 6323185, size= 37748591, Id=a6, bootable /dev/hdb7 : start= 44071777, size= 76031423, Id=8e I think this is your problem -- the OpenBSD partition needs to be a primary partition (hda1-hda4 in Linux terminology, or (hd0,1) - (hd0,3) in GRUB language, and you have it as an extended partition (hdb6). This is not supported. Reallocated your fdisk partitions so the OpenBSD partition is a primary partition and reinstall (you may have to resize your extended partition, ID=5, to make room). Those @#$! extended partitions! It's really time for me to get rid of that kind of programming style. I tried it out on another machine where I had a free primary partition. Hoolay--it boots! Moving partitions around on the machine described above will take some time but I will try it in any case and I will report. Thanks a lot for your patience when I became fretful. Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
Re: First install: Grub doesn't find partitions
Hi, Am Montag, 29. Okt 2007, 20:01:22 +0100 schrieb Bertram Scharpf: Am Montag, 29. Okt 2007, 11:54:23 -0500 schrieb Andrew Daugherity: I think this is your problem -- the OpenBSD partition needs to be a primary partition (hda1-hda4 in Linux terminology, or (hd0,1) - (hd0,3) in GRUB language, and you have it as an extended partition (hdb6). This is not supported. [...] Moving partitions around on the machine described above will take some time but I will try it in any case and I will report. I shuffled the OpenBSD partition to the primary section in front and --- it works! Phew! Bertram -- Bertram Scharpf Stuttgart, Deutschland/Germany http://www.bertram-scharpf.de
