Date: Fri, 19 Apr 1996 18:54:03 -0700 From: Manuel Hernandez <ManuelHe@ix.netcom.com> To: "'questions@freebsd.org'" <questions@freebsd.org> Subject: panic: cannot mount root. Message-ID: <01BB2E21.9A9253A0@irv-ca15-22.ix.netcom.com>
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I recently purchased the freeBSD CD-ROM and have installed it on my hard =
drive.The installation went ok. All files copied successfully onto BSD =
partition from the DOS partition.
I beleive that I have my disk geometry set right and my partitions
labeled well. The trouble is that now that I have installed it I cannot =
get it to boot up.=20
When I start my PC I direct the system through the boot manager =
installed by BSD. I choose to boot up BSD. The screen reads.
" Booting wd(1,a) / kernel @ 0x1000000"
I then see the PC scroll the hardware it senses on the screen.
finally it scrolls
" changing root device to wd1a "
" panic: cannot mount root"
... and then the computer reboots. I think there is something special I =
need to type at the " boot: " prompt. Is that correct?
=20
I have read several BSD news postings that discribe similiar problems, =
and that prompted me to make sure my geometry and partitions are set =
correctly. Just in case though I include the information below. I hope =
you can help me.=20
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * =
* *=20
=20
I have two disk drives, both IDE Western Digitals BSD sees them as =
follows:
wdc0 : at 0x1F0 - 0x1F7 irq 14 on isa
wdc0 : unit 0 (wd0) : <WDC A31200F>
wd0 : 1222mb (23038728 sectors) 2484 cyl 16 heads 63 S/T 512 B/S
wdc1 : at 0x170-0x177 irq 15 on isa
wdc1 : unit 0 (wd2) : <WDC A2635F>
wd2 : 610MB (1249920 sectors ) 1240 cyl 16 heads 63 S/T 512 B/S
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * =
* *=20
=20
Disk1 is all windows95/dos Disk 2 is dos and Freebsd and is =
partitioned as follows.
-------------------------------------------------------------------------=
---
offset| size | end | Name | ptype | des | subtype | =
flag =20
-------------------------------------------------------------------------=
--- =20
0 | 63 | 62 | -- | 6 | unused | 0 | =20
63 | 267057 | 267119 | wd2s1 | 2 | fat | 6 | =20
2767120 | 982800 |1249919 | wd2s2 | 3 | freebsd | 165 | c>
-------------------------------------------------------------------------=
---
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * =
* * =20
The disk labeling is as follows:
--------------------------------------------------
Part | Mount | Size | Newfs
-------------------------------------------------- =20
wd0s1 | <none> | 1220 MB | DOS
wd2s1 | <none> | 130 MB | DOS
wd2s2a | / | 32 MB | ufs Y
wd2s2b | <none> | 43 MB | swap
wd2s2e | /var | 30 MB | ufs Y
wd2s2f | /usr | 374 MB ufs Y
=09
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