On Mon, Mar 24, 2014 at 03:53:32PM -0400, Bill McGonigle wrote:
> Hi, folks,
>
> I've got two problems with grub2 that I thought others might have solved already. My initial attempts haven't been fruitful.
>
> I have an f20 Dom0.
> xen-4.3.2-1.fc20.x86_64
> grub2-2.00-25.fc20.x86_64
>
>
> Problem #1
>
> My /etc/default/grub looks like [1].
>
> I try to set the Dom0 to boot with:
>
> grub2-set-default 'Fedora, with Xen 4.3.2 and Linux 3.12.10-300.fc20.x86_64'
>
> and the default non-Xen menuentry gets booted instead.
>
> It's definitely there in the config file [2] and I can boot it manually. I really need the machine to be able to boot unattended. I tried setting it manually in /etc/grub/default but that doesn't work either.
>
> I'm generating the grub.cfg with grub2-mkconfig > /boot/grub2/grub.cfg and have re-installed grub2 on my /dev/sda and /dev/sdb (raid-1 /boot).
>
Change this:
GRUB_DEFAULT="saved"
to
GRUB_DEFAULT="Fedora GNU/Linux, with Xen hypervisor"
>
> Problem #2
>
> When I try to boot from grub manually, I first get an error message saying "xen_rm_opts" unknown command. In each Xen menuentry, I see, e.g.:
>
> echo 'Loading Xen xen ...'
> if [ "$grub_platform" = "pc" -o "$grub_platform" = "" ]; then
> xen_rm_opts
> else
> xen_rm_opts="no-real-mode edd=off"
> fi
>
> whereas in previous times I remember the first conditional block saying:
>
> xen_rm_opts=
>
> I presume that makes the difference between a statement and an assignment in whatever sh-ish language grub is using. I'm not sure where to fix that as I'm no grub2 expert. I kinda miss the simplicity of 'default=6'. :)
That looks like a bug in GRUB. If you use the upstream version of GRUB do you see it?
>
>
> My third possible-grub problem relates to memory and I'm not sure it really is a problem in grub2 yet, so I'll post that separately.
OK.
>
> Thanks in advance!
> -Bill
>
> [1]
>
> GRUB_TIMEOUT=5
> GRUB_DISTRIBUTOR="Fedora"
> GRUB_DEFAULT="saved"
> GRUB_CMDLINE_LINUX="root=LABEL=librescu-root rootflags=data=journal rd_NO_LUKS rd.md=auto rd.lvm=0 rd.dm=0 KEYTABLE=us SYSFONT=lata
> rcyrheb-sun16 rd.luks=0 LANG=en_US.UTF-8 selinux=0 elevator=deadline mem=4096M max_loop=32 selinux=0 ipv6.disable=1"
> GRUB_CMDLINE_XEN="dom0_max_vcpus=2 dom0_vcpus_pin dom0_mem=4096M,max:4096M"
> GRUB_SERIAL_COMMAND="serial --unit=0 --speed=19200 --word=8 --parity=no --stop=1"
> GRUB_TIMEOUT=10
> GRUB_TERMINAL="serial console"
>
> [2]
>
> # grep "'Fedora, with Xen 4.3.2 and Linux 3.12.10-300.fc20.x86_64'" /boot/grub2/grub.cfg
> menuentry 'Fedora, with Xen 4.3.2 and Linux 3.12.10-300.fc20.x86_64' --class fedora --class gnu-linux --class gnu --class os --class xen $menuentry_id_option 'xen-gnulinux-3.12.10-300.fc20.x86_64-advanced-9ccf2a16-82bf-41b0-a35f-1d79d63b3e28' {
>
>
>
>
>
>
> --
> Bill McGonigle, Owner
> BFC Computing, LLC
> http://bfccomputing.com/
> Telephone: +1.855.SW.LIBRE
> Email, IM, VOIP: bill@xxxxxxxxxxxxxxxx
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