[Bug 5240] New: mount fails on fstab entries with comment param

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=5240

           Summary: mount fails on fstab entries with comment param
           Product: Busybox
           Version: 1.19.x
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Standard Compliance
        AssignedTo: unassigned at busybox.net
        ReportedBy: maxposedon at gmail.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


systemd actively uses comment, in fstab
busybox's mount fails on it

# /etc/fstab (part, c361e424-a80f-47e4-b202-e09003ad9b63 is /dev/vda1)
UUID=c361e424-a80f-47e4-b202-e09003ad9b63       /boot           ext2   
comment=systemd.automount        0       2

# man fstab
 The fourth field (fs_mntops).
  This field describes the mount options associated with the filesystem.
   comment - for use by fstab-maintaining programs

# systemctl status boot.mount
boot.mount - /boot
          Loaded: loaded
          Active: failed (Result: exit-code) since Tue, 22 May 2012 21:12:17
+0000; 5min ago
           Where: /boot
            What: /dev/disk/by-uuid/c361e424-a80f-47e4-b202-e09003ad9b63
         Process: 1329 ExecMount=/bin/mount /boot (code=exited, status=255)
          CGroup: name=systemd:/system/boot.mount

__CURSOR=s=f10588364d65488790d1f35d438080cc;i=16e;b=0ace605e61cc45f3867ae4207b11a000;m=16dd11;t=4c0a67938d33b;x=d8ad2d58b262b6d0;p=system.journal
__REALTIME_TIMESTAMP=1337721137713979
__MONOTONIC_TIMESTAMP=1498385
_BOOT_ID=0ace605e61cc45f3867ae4207b11a000
_TRANSPORT=stdout
PRIORITY=6
SYSLOG_FACILITY=3
SYSLOG_IDENTIFIER=mount
MESSAGE=mount: mounting /dev/vda1 on /boot failed: Invalid argument
_PID=1329
_UID=0
_GID=0
_COMM=mount
_EXE=/bin/busybox
_CMDLINE=/bin/mount /boot
_SYSTEMD_CGROUP=/system/boot.mount
_SYSTEMD_UNIT=boot.mount
_MACHINE_ID=3423dddee0d664eb5792325900003a7d
_HOSTNAME=m_melnikau-vaio

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