Re: 2.6.11-rc4-mm1 (VFS: Cannot open root device "301")

[Steven Cole <elenstev@mesatop.com>]

Steven Cole wrote:
> Andrew Morton wrote:
> 
>> Steven Cole <elenstev@mesatop.com> wrote:
> 
> 
>>> I am having trouble getting recent -mm kernels to boot on my test box.
>>> For 2.6.11-rc3-mm2 and 2.6.11-rc4-mm1 I get the following:
>>>
>>> VFS: Cannot open root device "301" or unknown-block(3,1)
>>> Please append a correct "root=" boot option
>>> Kernel panic - not syncing: VFS: Unable to mount root fs on 
>>> unknown-block(3,1)
>>>
> [snipped]
> 
>>
>> Please set CONFIG_BASE_FULL=y.  Check that this causes 
>> CONFIG_BASE_SMALL=0,
>> then retest.
> 
> 
> Yes, that worked.  2.6.11-rc4-mm1 now boots OK, but hdb1 seems to be 
> missing.
> 
> [root@spc1 steven]# uname -r
> 2.6.11-rc4-mm1-GX110
> [root@spc1 steven]# mount -t reiser4 /dev/hdb1 /reiser4_testing
> mount: special device /dev/hdb1 does not exist
> 
> Reading another post (and looking in /dev), I tried hdq:
> 
> [root@spc1 steven]# mount -t reiser4 /dev/hdq1 /reiser4_testing
> [root@spc1 steven]# df -T
> Filesystem    Type    Size  Used Avail Use% Mounted on
> /dev/hda1     ext3    304M   75M  214M  26% /
> /dev/hda9 reiserfs    8.3G  3.9G  4.4G  48% /home
> /dev/hda8     ext3    464M  8.1M  432M   2% /tmp
> /dev/hda6     ext3    7.4G  1.7G  5.4G  24% /usr
> /dev/hda7     ext3    1.9G   86M  1.7G   5% /var
> /dev/hdq1  reiser4     18G  217M   18G   2% /reiser4_testing
> 
> Snipped from dmesg:
> 
> hda: ST320423A, ATA DISK drive
> hdb: WDC WD200BB-75AUA1, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> Probing IDE interface ide1...
> hdc: SONY CD-RW CRX160E, ATAPI CD/DVD-ROM drive
> ide1 at 0x170-0x177,0x376 on irq 15
> Probing IDE interface ide2...
> Probing IDE interface ide3...
> Probing IDE interface ide4...
> Probing IDE interface ide5...
> hda: max request size: 128KiB
> hda: 40011300 sectors (20485 MB) w/512KiB Cache, CHS=39693/16/63, UDMA(66)
> hda: cache flushes not supported
>  /dev/ide/host0/bus0/target0/lun0: p1 p2 < p5 p6 p7 p8 p9 >
> hdb: max request size: 128KiB
> hdb: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=38792/16/63, UDMA(66)
> hdb: cache flushes not supported
>  /dev/ide/host0/bus0/target1/lun0: p1
> 
> 
> Steven

(Replying to myself)
I decided to fix 2.6.11-rc3-mm1 with CONFIG_BASE_FULL=y and see if
the hdb/hdq confusion existed with that earlier kernel, but when I
ran lilo, I got a "Fatal: cache_add: LILO internal error" message.

[root@spc1 steven]# /sbin/lilo -v
LILO version 22.6.1, Copyright (C) 1992-1998 Werner Almesberger
Development beyond version 21 Copyright (C) 1999-2004 John Coffman
Released 17-Nov-2004, and compiled at 20:03:17 on Jan 15 2005

Reading boot sector from /dev/hda
Fatal: cache_add: LILO internal error

This box is still running 2.6.11-rc4-mm1 from above, and was booted
with append="root=0301" accidentally left in lilo.conf from earlier testing.

Steven