Date: Tue, 16 Apr 1996 20:09:58 -0700 From: Manuel Hernandez <ManuelHe@ix.netcom.com> To: "'questions@freebsd.org'" <questions@freebsd.org> Subject: panic: cannot mount root. Message-ID: <01BB2BD0.C5FCEDA0@mvo-ca8-61.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. 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.
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?
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.
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Disk1 is all windows95/dos Disk 2 is dos and Freebsd and is partitioned as follows.
------------------------------------------------------------------------------------
offset | size | end | Name | ptype | des | subtype | flag
------------------------------------------------------------------------------------
0 | 63 | 62 | -- | 6 | unused | 0 |
63 | 267057 | 267119 | wd2s1 | 2 | fat | 6 |
2767120 | 982800 | 1249919 | wd2s2 | 3 | freebsd | 165 | c>
------------------------------------------------------------------------------------
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
The disk labeling is as follows:
--------------------------------------------------
Part | Mount | Size | Newfs
--------------------------------------------------
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
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