** Description changed:
I have Ubuntu 18.04.2 LTS and grub 2 installed which boots from a sata
SSD drive. This a BIOS system, not UEFI.
I have a Windows 10 system restored to an nvme drive on a pci-card. I
- can boot this windows-10 system in VirtualBox.
+ can boot this windows-10 system on the nvme drive, in VirtualBox.
Ubuntu can see my nvme drive perfectly well, and update-grub finds the
Windows 10 system. Here is the generated section of /boot/grub/grub.cfg
:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 10 (on /dev/nvme0n1p1)' --class windows --class os
$menuentry_id_option 'osprober-chain-4E76C42676C4111F' {
insmod part_msdos
insmod ntfs
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root 4E76C42676C4111F
else
search --no-floppy --fs-uuid --set=root 4E76C42676C4111F
fi
parttool ${root} hidden-
drivemap -s (hd0) ${root}
chainloader +1
}
blkid can report on the drive:
% sudo blkid /dev/nvme0n1p1
/dev/nvme0n1p1: LABEL="OS" UUID="4E76C42676C4111F" TYPE="ntfs"
PARTUUID="000131d8-01"
-
However, when booting the Windows 10 Entry from grub, I get 4 errors:
error: no such devices 4E76C42676C4111F
error: not a partition
error: device format "lvmid/ozz..." invalid must be (f|h)dN, with 0 <= N <
120.
error: invalid signature
My belief is that if update-grub can create a grub menu entry. The
devices referenced in that entry should be able to be found by the grub
boot-loader runtime.
I have _minimal_ expertise in grub2. I suggest either the grub menu
entry has been incorrectly generated or interpreted, or perhaps the
driver required to see the nvme drive is not available to the grub
runtime.
% lsb_release -rd
Description: Ubuntu 18.04.2 LTS
Release: 18.04
% apt-cache policy grub-pc
grub-pc:
Installed: 2.02-2ubuntu8.13
Candidate: 2.02-2ubuntu8.13
Version table:
*** 2.02-2ubuntu8.13 500
500 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64
Packages
100 /var/lib/dpkg/status
2.02-2ubuntu8.12 500
500 http://au.archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
2.02-2ubuntu8 500
500 http://au.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
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https://bugs.launchpad.net/bugs/1822892
Title:
grub2 update-grub detects Windows 10 on nvme drive, cannot find device
of generated entry
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