Date: Wed, 13 Sep 2023 13:57:28 -0500 From: Guy Helmer <guy.helmer@gmail.com> To: Wojciech Puchar <wojtek@puchar.net> Cc: freebsd-hackers@freebsd.org Subject: Re: Unable to access GPT disk partitions - No such file or directory Message-ID: <4FA71559-A6D5-4DDF-95A1-DA714C5C32EB@gmail.com> In-Reply-To: <7641162f-746f-8fda-2fbc-731bd17e844f@puchar.net> References: <0CAE8FD0-9F09-4CF6-A402-DF30B039DF23@gmail.com> <7641162f-746f-8fda-2fbc-731bd17e844f@puchar.net>
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--Apple-Mail=_1560409D-1B16-410E-8314-EDE9DB7E1515 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Sep 13, 2023, at 12:20 PM, Wojciech Puchar <wojtek@puchar.net> = wrote: >=20 >> Mode: r0w0e0 >> The /dev entries look OK to me: >> $ ls -l /dev/da2* >> crw-r----- 1 root operator 0x66 Sep 13 14:01 /dev/da2 >> crw-r----- 1 root operator 0x6c Sep 13 14:01 /dev/da2p1 >> crw-r----- 1 root operator 0x6d Sep 13 14:01 /dev/da2p2 >> crw-r----- 1 root operator 0x6e Sep 13 14:01 /dev/da2p3 >> crw-r----- 1 root operator 0x6f Sep 13 14:01 /dev/da2p4 >> $ ls -l /dev/gpt/ >> total 0 >> crw-r----- 1 root operator 0x75 Sep 13 14:01 gpboot1 >> crw-r----- 1 root operator 0x77 Sep 13 14:01 gprootfs1 >> crw-r----- 1 root operator 0x79 Sep 13 14:01 gpswap1 >> crw-r----- 1 root operator 0x7b Sep 13 14:01 gpusrfs1 >>=20 >=20 > i don't think it's FreeBSD problem at all. >=20 > Can you do dd from da2 or da2p2 to /dev/null? >=20 >> However, any attempt to access the /dev entries fails with "No such = file or directory": >> $ sudo fsck /dev/da2p2 >> Can't open /dev/da2p2: No such file or directory >> $ sudo fsck /dev/da2p4 >> Can't open /dev/da2p4: No such file or directory >> $ sudo fsck /dev/gpt/gprootfs1=20 >> Can't open /dev/gpt/gprootfs1: No such file or directory >> $ sudo fsck /dev/gpt/gpusrfs1=20 >> Can't open /dev/gpt/gpusrfs1: No such file or directory >> I've never had an issue like this before and I can't find anything = using Google searches that resolves access to these disk devices. >> Any ideas? >> Thanks, >> Guy Helmer, Ph.D. Hi, Wojciech, thanks for the response - appreciate any assistance. dd = seems to be able to read OK from the devices: $ sudo dd if=3D/dev/da2 of=3D/dev/null bs=3D4096 count=3D1000 1000+0 records in 1000+0 records out 4096000 bytes transferred in 0.109224 secs (37500992 bytes/sec) $ sudo dd if=3D/dev/da2p2 of=3D/dev/null bs=3D4096 1048576+0 records in 1048576+0 records out 4294967296 bytes transferred in 56.561789 secs (75934078 bytes/sec) $ sudo dd if=3D/dev/da2p4 of=3D/dev/null bs=3D4096 count=3D1000 1000+0 records in 1000+0 records out 4096000 bytes transferred in 0.119445 secs (34291805 bytes/sec) Guy --Apple-Mail=_1560409D-1B16-410E-8314-EDE9DB7E1515 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii <html><head><meta http-equiv=3D"content-type" content=3D"text/html; = charset=3Dus-ascii"></head><body style=3D"overflow-wrap: break-word; = -webkit-nbsp-mode: space; line-break: = after-white-space;"><div><blockquote type=3D"cite"><div>On Sep 13, 2023, = at 12:20 PM, Wojciech Puchar <wojtek@puchar.net> wrote:</div><br = class=3D"Apple-interchange-newline"><div><meta = charset=3D"UTF-8"><blockquote type=3D"cite" style=3D"font-family: = Helvetica; font-size: 12px; font-style: normal; font-variant-caps: = normal; font-weight: 400; letter-spacing: normal; orphans: auto; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;"> Mode: r0w0e0<br>The /dev entries = look OK to me:<br>$ ls -l /dev/da2*<br>crw-r----- 1 root = operator 0x66 Sep 13 14:01 /dev/da2<br>crw-r----- 1 = root operator 0x6c Sep 13 14:01 /dev/da2p1<br>crw-r----- = 1 root operator 0x6d Sep 13 14:01 = /dev/da2p2<br>crw-r----- 1 root operator 0x6e Sep 13 = 14:01 /dev/da2p3<br>crw-r----- 1 root operator 0x6f = Sep 13 14:01 /dev/da2p4<br>$ ls -l /dev/gpt/<br>total 0<br>crw-r----- = 1 root operator 0x75 Sep 13 14:01 = gpboot1<br>crw-r----- 1 root operator 0x77 Sep 13 = 14:01 gprootfs1<br>crw-r----- 1 root operator 0x79 Sep = 13 14:01 gpswap1<br>crw-r----- 1 root operator 0x7b = Sep 13 14:01 gpusrfs1<br><br></blockquote><br style=3D"caret-color: = rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: = normal; font-variant-caps: normal; font-weight: 400; letter-spacing: = normal; text-align: start; text-indent: 0px; text-transform: none; = white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;"><span style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 12px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none; float: none; display: inline !important;">i don't = think it's FreeBSD problem at all.</span><br style=3D"caret-color: = rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: = normal; font-variant-caps: normal; font-weight: 400; letter-spacing: = normal; text-align: start; text-indent: 0px; text-transform: none; = white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;"><br style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 12px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;"><span style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 12px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none; float: none; display: inline !important;">Can you = do dd from da2 or da2p2 to /dev/null?</span><br style=3D"caret-color: = rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: = normal; font-variant-caps: normal; font-weight: 400; letter-spacing: = normal; text-align: start; text-indent: 0px; text-transform: none; = white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;"><br style=3D"caret-color: rgb(0, 0, 0); = font-family: Helvetica; font-size: 12px; font-style: normal; = font-variant-caps: normal; font-weight: 400; letter-spacing: normal; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;"><blockquote type=3D"cite" style=3D"font-family: = Helvetica; font-size: 12px; font-style: normal; font-variant-caps: = normal; font-weight: 400; letter-spacing: normal; orphans: auto; = text-align: start; text-indent: 0px; text-transform: none; white-space: = normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; = text-decoration: none;">However, any attempt to access the /dev entries = fails with "No such file or directory":<br>$ sudo fsck = /dev/da2p2<br>Can't open /dev/da2p2: No such file or directory<br>$ sudo = fsck /dev/da2p4<br>Can't open /dev/da2p4: No such file or directory<br>$ = sudo fsck /dev/gpt/gprootfs1 <br>Can't open /dev/gpt/gprootfs1: No = such file or directory<br>$ sudo fsck /dev/gpt/gpusrfs1 <br>Can't = open /dev/gpt/gpusrfs1: No such file or directory<br>I've never had an = issue like this before and I can't find anything using Google searches = that resolves access to these disk devices.<br>Any = ideas?<br>Thanks,<br>Guy Helmer, = Ph.D.</blockquote></div></blockquote><br></div><div>Hi, Wojciech, thanks = for the response - appreciate any assistance. dd seems to be able to = read OK from the devices:</div><div><br></div><div><div><div = style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">$ sudo dd = if=3D/dev/da2 of=3D/dev/null bs=3D4096 count=3D1000</div><div = style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">1000+0 records = in</div><div style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, = 0);">1000+0 records out</div><div style=3D"caret-color: rgb(0, 0, 0); = color: rgb(0, 0, 0);">4096000 bytes transferred in 0.109224 secs = (37500992 bytes/sec)</div><div>$ sudo dd if=3D/dev/da2p2 of=3D/dev/null = bs=3D4096</div><div>1048576+0 records in</div><div>1048576+0 records = out</div><div>4294967296 bytes transferred in 56.561789 secs (75934078 = bytes/sec)</div><div><div>$ sudo dd if=3D/dev/da2p4 of=3D/dev/null = bs=3D4096 count=3D1000</div><div>1000+0 records in</div><div>1000+0 = records out</div><div>4096000 bytes transferred in 0.119445 secs = (34291805 = bytes/sec)</div></div></div></div><br><div>Guy</div><div><br></div></body>= </html>= --Apple-Mail=_1560409D-1B16-410E-8314-EDE9DB7E1515--
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