Date: Thu, 30 Aug 2018 07:12:50 -0700 From: Mark Millard <marklmi@yahoo.com> To: Ian Lepore <ian@freebsd.org> Cc: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: FYI: how gpart show -p reports the same microsdhc card in a USB reader vs. in the microsdcard slot (on a Pine64+ 2GB) Message-ID: <59022B46-C0C8-47BC-8455-47602F3890FC@yahoo.com> In-Reply-To: <1535637249.33841.64.camel@freebsd.org> References: <5769CFF2-05D3-47CA-ABFA-52786C7C3B71@yahoo.com> <1535637249.33841.64.camel@freebsd.org>
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On 2018-Aug-30, at 6:54 AM, Ian Lepore <ian at freebsd.org> wrote:
> On Thu, 2018-08-30 at 02:39 -0700, Mark Millard via freebsd-arm wrote:
>> [I do not currently have access to any alternates to the
>> Pine64+ 2GB that have a micro sdcard slot. So I can not
>> say that this is specific to the Pine64+ 2GB type of
>> context: no evidence for other contexts.]
>>
>> gpart show -p when the microsdhc card is in a USB-based
>> reader:
>>
>> => 63 62333889 da4 MBR (30G)
>> 63 16380 - free - (8.0M)
>> 16443 131040 da4s1 fat32lba [active] (64M)
>> 147483 997 - free - (499K)
>> 148480 62185470 da4s2 freebsd (30G)
>> 62333950 2 - free - (1.0K)
>>
>> => 0 62185470 da4s2 BSD (30G)
>> 0 62185470 da4s2a freebsd-ufs (30G)
>>
>> => 0 62185470 ufsid/5b81680084249dc0 BSD (30G)
>> 0 62185470 ufsid/5b81680084249dc0a freebsd-ufs (30G)
>>
>> => 0 62185470 ufs/PINE642GBrootfs BSD (30G)
>> 0 62185470 ufs/PINE642GBrootfsa freebsd-ufs (30G)
>>
>> vs. when the same microsdhc card is in the mmcsd0 slot:
>>
>> => 63 62333889 mmcsd0 MBR (30G)
>> 63 16380 - free - (8.0M)
>> 16443 131040 mmcsd0s1 fat32lba [active] (64M)
>> 147483 997 - free - (499K)
>> 148480 62185470 mmcsd0s2 freebsd (30G)
>> 62333950 2 - free - (1.0K)
>>
>> Despite what the mmcsd0 case does not show, it seems to
>> work fine for the freebsd-ufs file system being the root
>> file system for booting from /dev/mmcsd0 .
>>
>> In fact the /etc/fstab used has:
>>
>> /dev/ufs/PINE642GBrootfs / ufs
>> rw,noatime 1 1
>> /dev/label/PINE642GBboot /boot/efi msdosfs
>> rw,noatime 0 0
>>
>> which show up just fine:
>>
>> # df -m
>> Filesystem 1M-blocks Used Avail Capacity Mounted on
>> /dev/ufs/PINE642GBrootfs 29400 26971 77 100% /
>> devfs 0 0 0 100% /dev
>> /dev/label/PINE642GBboot 63 0 63 0% /boot/efi
>>
>> So the freebsd-ufs content is found and used.
>>
>
> It's all but impossible to dig any meaning out of that jumbled wall of
> text, but from the subject line I surmise you're saying that an sdcard
> in a usb card reader shows a different geometry or size than that same
> card in a native sd slot. That's normal and expected and has always
> been so.
I mean that the mmcsd0 case does not show any equivalent of the:
=> 0 62185470 da4s2 BSD (30G)
0 62185470 da4s2a freebsd-ufs (30G)
There is no explicit hint of a freebsd-ufs being present in the
"freebsd" area in mmcsd0 gpart show output. (Yet it uses that
area just fine.)
It seemed odd to me even if it is expected for some reason.
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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