[Bug 1274320] Re: Error: diskfilter writes are not supported
Jan Navrátil
1274320 at bugs.launchpad.net
Sun Sep 22 15:38:38 UTC 2019
Also affects Ubuntu 19.04 with this configuration
Disk /dev/sda: 119,2 GiB, 128 035 676 160 bajtů, 250 069 680 sektorů
Disk model: INTEL SSDSCKKW12
Jednotky: sektorů po 1 * 512 = 512 bajtech
Velikost sektoru (logického/fyzického): 512 bajtů / 512 bajtů
Velikost I/O (minimální/optimální): 512 bajtů / 512 bajtů
Typ popisu disku: gpt
Identifikátor disku: A99C455B-4F9A-4FE3-A57F-35D26DC99583
Zařízení Začátek Konec Sektory Velikost Druh
/dev/sda1 2048 2050047 2048000 1000M Systém EFI
/dev/sda2 2050048 2582527 532480 260M Systém EFI
/dev/sda3 2582528 150573055 147990528 70,6G Základní data Microsoftu
/dev/sda4 150575104 151691263 1116160 545M Prostředí obnovy Windows
/dev/sda5 151693312 250068991 98375680 46,9G Souborový systém Linuxu
Disk /dev/sdb: 465,8 GiB, 500 107 862 016 bajtů, 976 773 168 sektorů
Disk model: HGST HTS545050A7
Jednotky: sektorů po 1 * 512 = 512 bajtech
Velikost sektoru (logického/fyzického): 512 bajtů / 4096 bajtů
Velikost I/O (minimální/optimální): 4096 bajtů / 4096 bajtů
Typ popisu disku: gpt
Identifikátor disku: D5C37A89-480B-498C-BFF5-FFA3F8A1D93C
Zařízení Začátek Konec Sektory Velikost Druh
/dev/sdb1 2048 2050047 2048000 1000M Prostředí obnovy Windows
/dev/sdb2 2582528 4630527 2048000 1000M Startovací oddíl Lenova
/dev/sdb3 4630528 4892671 262144 128M Vyhrazeno pro Microsoft
/dev/sdb4 4892672 945827839 940935168 448,7G Základní data Microsoftu
/dev/sdb5 945829888 976773119 30943232 14,8G Prostředí obnovy Windows
Disk /dev/mapper/linux-ubuntu: 24 GiB, 25 769 803 776 bajtů, 50 331 648 sektorů
Jednotky: sektorů po 1 * 512 = 512 bajtech
Velikost sektoru (logického/fyzického): 512 bajtů / 512 bajtů
Velikost I/O (minimální/optimální): 512 bajtů / 512 bajtů
Disk /dev/mapper/linux-swap: 4 GiB, 4 294 967 296 bajtů, 8 388 608 sektorů
Jednotky: sektorů po 1 * 512 = 512 bajtech
Velikost sektoru (logického/fyzického): 512 bajtů / 512 bajtů
Velikost I/O (minimální/optimální): 512 bajtů / 512 bajtů
--
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Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1274320
Title:
Error: diskfilter writes are not supported
Status in grub:
Unknown
Status in grub2 package in Ubuntu:
Fix Released
Status in grub2-signed package in Ubuntu:
Fix Released
Status in grub2 source package in Trusty:
Fix Released
Status in grub2-signed source package in Trusty:
Fix Released
Status in grub2 source package in Vivid:
Fix Released
Status in grub2-signed source package in Vivid:
Fix Released
Status in grub2 package in Debian:
Fix Released
Status in grub2 package in Fedora:
Won't Fix
Bug description:
[Impact]
RAID and LVM users may run into a cryptic warning on boot from GRUB; because some variants of RAID and LVM are not supported for writing by GRUB itself. GRUB would typically try to write a tiny file to the boot partition for things like remembering the last selected boot entry.
[Test Case]
On an affected system (typically any RAID/LVM setup where the boot device is on RAID or on a LVM device), try to boot. Without the patch, the message will appear, otherwise it will not.
[Regression Potential]
The potential for regression is minimal as the patch involves enforcing the fact that diskfilter writes are unsupported by grub in menu building scripts, which will automatically avoid enabling recordfail (the offending feature which saves GRUB's state) if the boot partition is detected to be on a device which does not support diskfilter writes.
----
Once grub chooses what to boot to, an error shows up and will sit on
the screen for approx. 5 seconds
"Error: diskfilter writes are not supported.
Press any key to continue..."
From what I understand, this error is related to raid partitions, and
I have two of them (md0, md1). Both partitions are used (root and
swap). Raid is assembled with mdadm and are raid0
This error message started appearing right after grub2 was updated on
01/27/2014.
System: Kernel: 3.13.0-5-generic x86_64 (64 bit) Desktop: KDE 4.11.5 Distro: Ubuntu 14.04 trusty
Drives: HDD Total Size: 1064.2GB (10.9% used)
1: id: /dev/sda model: SanDisk_SDSSDRC0 size: 32.0GB
2: id: /dev/sdb model: SanDisk_SDSSDRC0 size: 32.0GB
3: id: /dev/sdc model: ST31000528AS size: 1000.2GB
RAID: Device-1: /dev/md1 - active raid: 0 components: online: sdb2 sda3 (swap) Device-2: /dev/md0 - active raid: 0 components: online: sdb1 sda1 ( / )
Grub2: grub-efi-amd64 version 2.02~beta2-5
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: grub-efi-amd64 2.02~beta2-5
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Uname: Linux 3.13.0-5-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Jan 29 17:37:59 2014
SourcePackage: grub2
UpgradeStatus: Upgraded to trusty on 2014-01-23 (6 days ago)
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