Public bug reported:
https://anonscm.debian.org/cgit/d-i/os-prober.git/tree/os-
probes/mounted/x86/05efi#n42..n45
Disk has regular MBR table. It has Windows 7 and Ubuntu installed on
different partitions. Os-prober doesn't detect EFI partition on MBR
table because "udevadm info" returns "dos" partition scheme instead of
expected "msdos".
$ udevadm info /dev/sda1 | grep dos
E: ID_PART_ENTRY_SCHEME=dos
E: ID_PART_TABLE_TYPE=dos
$ fdisk -lu /dev/sda | grep -B1 -A1 ef
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 616447 307200 ef EFI (FAT-12/16/32)
/dev/sda2 616448 128134439 63758996 7 HPFS/NTFS/exFAT
Fixing conditions below resolves the issue:
- \( "$ID_PART_ENTRY_SCHEME" != gpt -a "$ID_PART_ENTRY_SCHEME" !=
msdos \) -o \
+ \( "$ID_PART_ENTRY_SCHEME" != gpt -a "$ID_PART_ENTRY_SCHEME" !=
dos \) -o \
\( "$ID_PART_ENTRY_SCHEME" = gpt -a "$ID_PART_ENTRY_TYPE" !=
c12a7328-f81f-11d2-ba4b-00a0c93ec93b \) -o \
- \( "$ID_PART_ENTRY_SCHEME" = msdos -a "$ID_PART_ENTRY_TYPE" !=
0xef \) ]; then
+ \( "$ID_PART_ENTRY_SCHEME" = dos -a "$ID_PART_ENTRY_TYPE" !=
0xef \) ]; then
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: efi mbr windows
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Packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1553678
Title:
os-prober doesn't detect Windows properly with EFI and MBR partition
Status in xorg package in Ubuntu:
New
Bug description:
https://anonscm.debian.org/cgit/d-i/os-prober.git/tree/os-
probes/mounted/x86/05efi#n42..n45
Disk has regular MBR table. It has Windows 7 and Ubuntu installed on
different partitions. Os-prober doesn't detect EFI partition on MBR
table because "udevadm info" returns "dos" partition scheme instead of
expected "msdos".
$ udevadm info /dev/sda1 | grep dos
E: ID_PART_ENTRY_SCHEME=dos
E: ID_PART_TABLE_TYPE=dos
$ fdisk -lu /dev/sda | grep -B1 -A1 ef
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 616447 307200 ef EFI (FAT-12/16/32)
/dev/sda2 616448 128134439 63758996 7 HPFS/NTFS/exFAT
Fixing conditions below resolves the issue:
- \( "$ID_PART_ENTRY_SCHEME" != gpt -a "$ID_PART_ENTRY_SCHEME" !=
msdos \) -o \
+ \( "$ID_PART_ENTRY_SCHEME" != gpt -a "$ID_PART_ENTRY_SCHEME" !=
dos \) -o \
\( "$ID_PART_ENTRY_SCHEME" = gpt -a "$ID_PART_ENTRY_TYPE" !=
c12a7328-f81f-11d2-ba4b-00a0c93ec93b \) -o \
- \( "$ID_PART_ENTRY_SCHEME" = msdos -a "$ID_PART_ENTRY_TYPE" !=
0xef \) ]; then
+ \( "$ID_PART_ENTRY_SCHEME" = dos -a "$ID_PART_ENTRY_TYPE" !=
0xef \) ]; then
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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1553678/+subscriptions
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