Ubuntu 16.10+ installer uses ext4 feature 'metadata_csum' which is incompatible with older (LTS) e2fsprogs
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
e2fsprogs (Ubuntu) |
Won't Fix
|
High
|
Unassigned |
Bug Description
Ubuntu 16.10 installer sets metadata_csum option on ext4 partition which is incompatible with other LTS Ubuntu versions (12.04 LTS, 14.04 LTS, 16.04 LTS).
Steps to reproduce:
1. Download Ubuntu 16.10 installation media.
2. Install Ubuntu.
3. Try to do fsck -fy /dev/sdX1 from other supported Ubuntu distro.
Expected results:
User can check and fix errors on ext4 filesystem, created on Ubuntu 16.10.
Actual results:
User can not check and fix errors on ext4 filesystem because of lack of 'metadata_csum' option in previous LTS Ubuntu versions.
The only one working solution was to scan from 16.10 live install media.
Note:
it is known, that Dan Watkins disabled metadata_csum when creating ext4 filesystems ( see http://
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: e2fsprogs 1.43.1-1
ProcVersionSign
Uname: Linux 4.4.0-30-generic i686
ApportVersion: 2.20.2-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Mon Jul 11 23:42:49 2016
SourcePackage: e2fsprogs
UpgradeStatus: No upgrade log present (probably fresh install)
Changed in e2fsprogs (Ubuntu): | |
status: | Invalid → Triaged |
importance: | Undecided → High |
summary: |
- Ubuntu 16.10 installer sets metadata_csum option on ext4 partition which - is incompatible with other LTS Ubuntu versions + Ubuntu 16.10+ installer uses ext4 feature 'metadata_csum' which is + incompatible with older (LTS) e2fsprogs |
tags: | added: rls-bb-incoming |
There is a linked bug 1365874 about adding 'metadata_csum' to e2fsk in LTS versions.