mount doesn't understand the auto mount option

Chris Boot bootc at debian.org
Mon Jun 29 14:04:48 UTC 2020


On 23/07/2019 18:13, Chris Boot wrote:
> Package: busybox
> Version: 1.30.1
> 
> We've received a bug in Debian about busybox's mount command not
> supporting the 'auto' option in fstab. This option really is a no-op as
> it is default behaviour that can be disabled with noauto, but it turns
> out that some users add this to their fstab. With util-linux's mount
> this works fine, but busybox mount croaks.
> 
> If a user has a separate /usr filesystem, this is mounted in the
> initramfs after the root filesystem. When a user has a separate /usr
> with the auto mount option set, the filesystem fails to mount and the
> user gets dumped into the initramfs shell.
> 
> The patch below appears to fix the problem:
> 
> --- a/util-linux/mount.c
> +++ b/util-linux/mount.c
> @@ -298,6 +298,7 @@
>  		/* "defaults" */ 0,
>  		/* "quiet" 0 - do not filter out, vfat wants to see it */
>  		/* "noauto" */ MOUNT_NOAUTO,
> +		/* "auto" */ ~MOUNT_NOAUTO,
>  		/* "sw"     */ MOUNT_SWAP,
>  		/* "swap"   */ MOUNT_SWAP,
>  		IF_DESKTOP(/* "user"  */ MOUNT_USERS,)
> @@ -358,6 +359,7 @@
>  		"defaults\0"
>  		// "quiet\0" - do not filter out, vfat wants to see it
>  		"noauto\0"
> +		"auto\0"
>  		"sw\0"
>  		"swap\0"
>  		IF_DESKTOP("user\0")
> 
> For reference, the Debian bug is:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=847424

It's been almost a year since I posted this patch. Is there any chance
it can be merged please?

Cheers,
Chris

-- 
Chris Boot
bootc at debian.org


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