Re: The root partition inside a slice.
Hello. Maybe, anybody can add to the boot.cfg(5) a one more sample. menu=Boot from / on hd0e and /var on hd0a:rndseed /db/entropy-file;dev hd0e:; boot Ilia.
Re: The root partition inside a slice.
You can also specify a disklabel partition prefix in the rndseed file specification. So, in your case this might also work: menu=Boot from / on hd0e and /var on hd0a:rndseed hd0a:/db/entropy-file;dev hd0e:;boot Also, I noticed that there is a space before 'boot' in your case. IIRC, that caused me boot issues in the past. Cheers, Toby Thanks.
Re: The root partition inside a slice.
On 2014-05-19 09:59, Ilia Zykov wrote: Hello. Maybe, anybody can add to the boot.cfg(5) a one more sample. menu=Boot from / on hd0e and /var on hd0a:rndseed /db/entropy-file;dev hd0e:; boot Ilia. You can also specify a disklabel partition prefix in the rndseed file specification. So, in your case this might also work: menu=Boot from / on hd0e and /var on hd0a:rndseed hd0a:/db/entropy-file;dev hd0e:;boot Also, I noticed that there is a space before 'boot' in your case. IIRC, that caused me boot issues in the past. Cheers, Toby
The root partition inside a slice.
Hello.
Tell me please.
Why now NetBSD can has the root partition only on beginning of a slice?
For instance:
boot hd0e:netbsd can't find the root if the hd0e is inside a slice and
hasn't a dos partition twin.
For effectively and flexibility it's not handy.
Perfunctory the code inspection has given only this, but
I am sure it is not really reason.
Maybe it is a issue inside the wedges' code or it is must be so.
init_main.c
static void
rootconf_handle_wedges(void)
{
...
dev = dkwedge_find_partition(dev, startblk, nblks);
if (dev != NULL) {
booted_device = dev;
booted_partition = 0;
}
...
}
P.S.
I don't mean the bootloader.
Bootloader must be on the first(beginning of a slice) partition.
Thank you.
Ilia.
Re: The root partition inside a slice.
On Fri, May 16, 2014 at 02:21:39PM +0400, Ilia Zykov wrote:
Why now NetBSD can has the root partition only on beginning of a slice?
For instance:
boot hd0e:netbsd can't find the root if the hd0e is inside a slice and
hasn't a dos partition twin.
I don't quite understand - please give us a bit more information.
The boot process and partition rules are a bit different between
architectures, so let us start with the machine you are using - probably
i386 or amd64?
Since you talked about DOS partitions, you are not using GPT, I presume.
Please show the output of fdisk and disklabel for the disk you are
booting from, and also (assuming some x86 machine) of sysctl machdep.diskinfo.
dev = dkwedge_find_partition(dev, startblk, nblks);
if (dev != NULL) {
booted_device = dev;
booted_partition = 0;
}
This is only a fallback if the wedge does not match anything, should not
happen with bootable disks and wedge autoconfiguration.
Martin
Re: The root partition inside a slice.
boot hd0e:netbsd can't find the root if the hd0e is inside a slice and hasn't a dos partition twin. I mean the GENERIC kernel. A config's option(config netbsd root on wd0e type ffs) works normal.
Re: The root partition inside a slice.
Why now NetBSD can has the root partition only on beginning of a slice? For instance: boot hd0e:netbsd can't find the root if the hd0e is inside a slice and hasn't a dos partition twin. Which NetBSD version? NetBSD x86 6.1.4 can't handle it and you need the following change (which I'm using for my custom 6.1.4 amd64 kernel): http://www.nerv.org/~ryo/netbsd/netbsd/?q=id:20130428T143256Z.b623c8487cf2235d829e0daff70cca59b1b79df8 6.2 will include this fix. --- Izumi Tsutsui
Re: The root partition inside a slice.
NetBSD x86 6.1.4 can't handle it and you need the following change (which I'm using for my custom 6.1.4 amd64 kernel): http://www.nerv.org/~ryo/netbsd/netbsd/?q=id:20130428T143256Z.b623c8487cf2235d829e0daff70cca59b1b79df8 6.2 will include this fix. --- Izumi Tsutsui I will be trying this. Thank you.
Re: The root partition inside a slice.
NetBSD x86 6.1.4 can't handle it and you need the following change (which I'm using for my custom 6.1.4 amd64 kernel): http://www.nerv.org/~ryo/netbsd/netbsd/?q=id:20130428T143256Z.b623c8487cf2235d829e0daff70cca59b1b79df8 6.2 will include this fix. I have tried the current(69940) i386 kernel. It's not helped. I have the root partition on ld0e and bootloader on ld0a. See the attachment hd0e_root_4.PNG. I have got this info with the help of boot.iso after: mount /dev/ld0e /mnt mount /dev/ld0a /mnt/var chroot /mnt
Re: The root partition inside a slice.
I have tried the current(69940) i386 kernel. It's not helped. I have the root partition on ld0e and bootloader on ld0a. Can you also show your boot.cfg? Does it have rndseed /var/db/entropy-file; boot hd0e:netbsd ? If so, probably you have to remove rndseed command from it. IIRC, the current x86 bootloader has a bug: - rndseed (and modules) always tries to open the partition a - once the partition a is opened the bootloader sets it as a root partition into bootinfo even if it isn't opened for loading a kernel http://nxr.netbsd.org/xref/src/sys/arch/i386/stand/lib/biosdisk.c?r=1.43#781 --- Izumi Tsutsui
