Subject: Re: dump_lfs issue
To: Juan RP <juan@xtrarom.org>
From: Marcin Michal Jessa <lists@yazzy.org>
List: current-users
Date: 05/02/2007 23:40:16
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On May 2, 2007, at 8:00 PM, Juan RP wrote:
> On Tue, 1 May 2007 18:52:33 +0200
> Marcin Michal Jessa <lists@yazzy.org> wrote:
>
>> I ran scan_lfs -v /dev/xbd0i [1] and scan_lfs -vl /dev/xbd0i [2].
>> Any idea how to figure out the number of super-blocks out of
>> following results? :
>>
>> # scan_lfs -v /dev/xbd0i
>> Disk: Hosting
>> Total sectors on disk: 412764160
>>
>> offset: 3388688 n: 155648 id 42846d4c,0 size: 0
>> offset: 4142504 n: 233472 id 461ea54f,ffc0a80 size: 0
>> offset: 10795428 n: 231424 id 44e18250,203b79ec size: 0
>> offset: 12092628 n: 124928 id 4623b0c7,3728f4d8 size: 0
>> offset: 6141936 size 15360000
>> LFSv2 at 6141936 size 61440000, last mounted on
>> offset: 18374220 n: 317440 id 46274b81,394d76d0 size: 0
>> offset: 26493444 n: 280576 id 44e18250,203b79ec size: 0
>> offset: 26721288 n: 20480 id 44e18250,203b79ec size: 0
>> offset: 28506928 n: 434176 id 433ee3c6,0 size: 0
>> offset: 38892788 n: 141312 id 44e1823f,21be662f size: 0
>> offset: 44206272 n: 114688 id 461040c0,30577d00 size: 0
>> offset: 46213860 n: 395264 id 461133bd,2a07e340 size: 0
>> offset: 55082444 n: 251904 id 44e1825a,7b2c5943 size: 0
>> offset: 57434832 n: 385024 id 461bdbfb,32f8d018 size: 17797805967662
>
> Konrad added a new flag to scan_ffs(8) (-b) that will report the
> sector
> number of the superblocks in a partition or device.
Yes, I saw that commit. Konrad also helped me out with this before he
commited the new code
and I was able to recover my data too.
Marcin Michal Jessa
http://www.wifibsd.org/
perl -e 'print $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),
10);'
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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; "><BR><DIV><DIV>On May 2, 2007, at =
8:00 PM, Juan RP wrote:</DIV><BR =
class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">On Tue, 1 May 2007 18:52:33 +0200</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">Marcin Michal Jessa <<A =
href=3D"mailto:lists@yazzy.org">lists@yazzy.org</A>> wrote:</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; min-height: 14px; "><BR></DIV> <BLOCKQUOTE =
type=3D"cite"><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">I ran scan_lfs -v /dev/xbd0i [1] =
and scan_lfs -vl /dev/xbd0i [2].</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Any idea how =
to figure out the number of super-blocks out of <SPAN =
class=3D"Apple-converted-space">=A0</SPAN></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; =
">following results? :</DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; "># scan_lfs -v =
/dev/xbd0i</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">Disk: Hosting</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">Total sectors on disk: 412764160</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
3388688 n: 155648 id 42846d4c,0 size: 0</DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
4142504 n: 233472 id 461ea54f,ffc0a80 size: 0</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">offset: 10795428 n: 231424 id 44e18250,203b79ec =
size: 0</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">offset: 12092628 n: 124928 id =
4623b0c7,3728f4d8 size: 0</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
6141936 size 15360000</DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; ">LFSv2 at 6141936 size =
61440000, last mounted on</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
18374220 n: 317440 id 46274b81,394d76d0 size: 0</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">offset: 26493444 n: 280576 id 44e18250,203b79ec =
size: 0</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">offset: 26721288 n: 20480 id =
44e18250,203b79ec size: 0</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
28506928 n: 434176 id 433ee3c6,0 size: 0</DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
38892788 n: 141312 id 44e1823f,21be662f size: 0</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">offset: 44206272 n: 114688 id 461040c0,30577d00 =
size: 0</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">offset: 46213860 n: 395264 id =
461133bd,2a07e340 size: 0</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">offset: =
55082444 n: 251904 id 44e1825a,7b2c5943 size: 0</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">offset: 57434832 n: 385024 id 461bdbfb,32f8d018 =
size: 17797805967662</DIV> </BLOCKQUOTE><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: =
14px; "><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">Konrad added a new flag to =
scan_ffs(8) (-b) that will report the sector</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">number of the superblocks in a partition or =
device.</DIV></BLOCKQUOTE><BR></DIV>Yes, I saw that commit. Konrad also =
helped me out with this before he commited the new code<DIV>and I was =
able to recover my data too.=A0</DIV><DIV><BR =
class=3D"khtml-block-placeholder"><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV><BR><DIV> <SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><SPAN =
class=3D"Apple-style-span" style=3D"border-collapse: separate; =
border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; text-align: auto; =
-khtml-text-decorations-in-effect: none; text-indent: 0px; =
-apple-text-size-adjust: auto; text-transform: none; orphans: 2; =
white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Marcin Michal =
Jessa</DIV><DIV><A =
href=3D"http://www.wifibsd.org">http://www.wifibsd.org</A>/</DIV>perl -e =
'print $i=3Dpack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'<BR =
class=3D"Apple-interchange-newline"></SPAN></SPAN></SPAN> =
</DIV><BR></DIV></DIV></BODY></HTML>=
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