Public bug reported:
Kernel shipped with Ubuntu 16.04.1 cannot recognize fakeRaid created
from Ubuntu 14.04. I've tried three ways but none of them work.
1. Update 14.04.4 to 16.04.1
2. Fresh install 16.04.1
3. Update kernel to linux-images-4.4.0-34-generic only
The result is that the mapper was seperated into /dev/sdb and /dev/sdc
and cannot be rebuild with dmraid (said no raid disk) or mdadm (said no
superblock).
Something interesting is that when I reinstall Ubuntu 14.04.1 with my
old CD, during the installation Ubuntu is able to recognize
/dev/mapper/.... But when I do a fresh install in Ubuntu 16.04 with the
CD, I get /dev/sdb and /dev/sdc
The motherboard I'm using is Gigabyte X79-UP4
The fakeRaid with Marvell chipset on my motherboard shows the following
information with fdisk in Ubuntu 14.04.4.
Disk /dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001: 2000.3
GB, 2000315047936 bytes
255 heads, 63 sectors/track, 243191 cylinders, total 3906865328 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x3b9fee89
Device Boot Start
End Blocks Id System
/dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001p1
2048 3906865151 1953431552 83 Linux
Disk /dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001p1:
2000.3 GB, 2000313909248 bytes
255 heads, 63 sectors/track, 243190 cylinders, total 3906863104 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001p1
doesn't contain a valid partition table
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Description changed:
- Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid created
+ Kernel shipped with Ubuntu 16.04.1 cannot recognize fakeRaid created
from Ubuntu 14.04. I've tried three ways but none of them work.
1. Update 14.04.4 to 16.04.1
2. Fresh install 16.04.1
3. Update kernel to linux-images-4.4.0-34-generic only
The result is that the mapper was seperated into /dev/sdb and /dev/sdc
and cannot be rebuild with dmraid (said no raid disk) or mdadm (said no
superblock).
Something interesting is that when I reinstall Ubuntu 14.04.1 with my
old CD, during the installation Ubuntu is able to recognize
/dev/mapper/.... But when I do a fresh install in Ubuntu 16.04 with the
CD, I get /dev/sdb and /dev/sdc
The motherboard I'm using is Gigabyte X79-UP4
The fakeRaid with Marvell chipset on my motherboard shows the following
information with fdisk in Ubuntu 14.04.4.
Disk /dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001:
2000.3 GB, 2000315047936 bytes
255 heads, 63 sectors/track, 243191 cylinders, total 3906865328 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x3b9fee89
- Device Boot
Start End Blocks Id System
+ Device Boot
Start End Blocks Id System
/dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001p1
2048 3906865151 1953431552 83 Linux
Disk /dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001p1:
2000.3 GB, 2000313909248 bytes
255 heads, 63 sectors/track, 243190 cylinders, total 3906863104 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/ddf1_00000000000000004b1b92914b1b92914b0400004b040001p1
doesn't contain a valid partition table
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https://bugs.launchpad.net/bugs/1611277
Title:
Kernel Shipped With Ubuntu 16.04.1 Cannot Recognize fakeRaid
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