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FS#28653 - [linux] regression caused by using ext4 for ext[23]

Attached to Project: Arch Linux
Opened by Tom Gundersen (tomegun) - Saturday, 25 February 2012, 21:19 GMT
Last edited by Tobias Powalowski (tpowa) - Wednesday, 29 February 2012, 07:27 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas B├Ąchler (brain0)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


Some (obscure) mount options are supported by ext[23], but not by ext4. If these are used with the latest kernel, the kernel will simply refuse to mount the fs.

This is particularly bad if it is the rootfs, as it will give you a read-only root, without the possibility of editing fstab to fix the issue. (Of course it can be done, but you have to get creative ;-) ). [-1]

I posted a patch to the ext4 list[0] that fixes the issue. It was acked by one of the maintainers, but don't has not been applied yet.

We should either backport this patch or revert the change to using ext4 (I obviously prefer the former).

This task depends upon

Closed by  Tobias Powalowski (tpowa)
Wednesday, 29 February 2012, 07:27 GMT
Reason for closing:  Fixed