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Date:      Tue, 11 Jul 2017 19:46:31 +0100
From:      Edward Napierala <trasz@freebsd.org>
To:        Ravi Pokala <rpokala@mac.com>
Cc:        "src-committers@freebsd.org" <src-committers@freebsd.org>,  "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>,  "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r320892 - head/etc/defaults
Message-ID:  <CAFLM3-oRR=XnMaePvTMm=-wcbcNLGB=3%2Bk0J32ymZHRyhMm2ug@mail.gmail.com>
In-Reply-To: <B06C8477-9B07-4EC5-A929-2BDEA9C7311C@panasas.com>
References:  <201707111232.v6BCWeXu073060@repo.freebsd.org> <B06C8477-9B07-4EC5-A929-2BDEA9C7311C@panasas.com>

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Well, fsck(8) is a bit weird.

Assuming you don't have /dev/md0 in your fstab(5):

[trasz@v2:~]% fsck -d -t ffs -T ufs:-R /dev/md0
start (null) wait fsck_ffs /dev/md0
[trasz@v2:~]% fsck -d -t ufs -T ufs:-R /dev/md0
start (null) wait fsck_ufs -R /dev/md0

However (/ is defined as ufs in my fstab(5)):

[trasz@v2:~]% fsck -d -t ffs -T ufs:-R /
start / wait fsck_ufs -R /dev/ada0s1a
[trasz@v2:~]% fsck -d -t ufs -T ufs:-R /
start / wait fsck_ufs -R /dev/ada0s1a


2017-07-11 16:21 GMT+01:00 Ravi Pokala <rpokala@mac.com>:

> I appreciate the spirit of this change; thanks Trasz!
>
> A question though: you're telling the generic `fsck' to pass "-R" to
> either `fsck_ffs' or `fsck_ufs', as needed. But those are both names for
> the same executable. Won't the generic `fsck' always end up invoking (per
> sbin/fsck/fsck.c::ptype_map[]) `fsck_ffs'? In which case, is the `fsck_ufs'
> case needed here?
>
> Thanks,
>
> Ravi (rpokala@)
>
> -----Original Message-----
> From: <owner-src-committers@freebsd.org> on behalf of Edward Tomasz
> Napierala <trasz@FreeBSD.org>
> Date: 2017-07-11, Tuesday at 05:32
> To: <src-committers@freebsd.org>, <svn-src-all@freebsd.org>, <
> svn-src-head@freebsd.org>
> Subject: svn commit: r320892 - head/etc/defaults
>
> Author: trasz
> Date: Tue Jul 11 12:32:40 2017
> New Revision: 320892
> URL: https://svnweb.freebsd.org/changeset/base/320892
>
> Log:
>   Make fsck_y_enable default to passing pass -R to fsck_ffs(8) in addition
>   to -y.  To me, fsck_y_enable means "try as hard as possible", and without
>   -R, it... well, doesn't.
>
>   Reviewed by:  mckusick
>   Obtained from:        CheriBSD
>   MFC after:    2 weeks
>   Sponsored by: DARPA, AFRL
>   Differential Revision:        https://reviews.freebsd.org/D11490
>
> Modified:
>   head/etc/defaults/rc.conf
>
> Modified: head/etc/defaults/rc.conf
> ============================================================
> ==================
> --- head/etc/defaults/rc.conf   Tue Jul 11 06:39:12 2017        (r320891)
> +++ head/etc/defaults/rc.conf   Tue Jul 11 12:32:40 2017        (r320892)
> @@ -92,7 +92,7 @@ geli_autodetach="YES" # Automatically detach on last c
>  root_rw_mount="YES"    # Set to NO to inhibit remounting root read-write.
>  root_hold_delay="30"   # Time to wait for root mount hold release.
>  fsck_y_enable="NO"     # Set to YES to do fsck -y if the initial preen
> fails.
> -fsck_y_flags=""                # Additional flags for fsck -y
> +fsck_y_flags="-T ffs:-R -T ufs:-R"     # Additional flags for fsck -y
>  background_fsck="YES"  # Attempt to run fsck in the background where
> possible.
>  background_fsck_delay="60" # Time to wait (seconds) before starting the
> fsck.
>  netfs_types="nfs:NFS smbfs:SMB" # Net filesystems.
>
>
>
>
>



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