[Voyage-linux] /dev/disk/by-label/ROOT_FS does not exist

[Jim Cromie]

On 7/12/2010 3:13 PM, cereal wrote:
> I've been trying to install voyage on an old neoware thin client, however I
> keep getting the subject's error message. Previous to this plan I was
> running a custom CentOS. The message is
>
> ALERT! /dev/disk/by-label/ROOT_FS does not exist. Dropping to a shell!
> (initramfs) _
>
>

In initramfs prompt, please type "cat /proc/partitions".   This will
show if the kernel could be able to detect your drive or not.  If not,
please send the "dmesg" and "lspci -v" output to the list.

Also please read section 6.4 of README. Try adding "ide=nodma
all_generic_ide" to kernel boot parameters to if it could help.

Please note that Voyage Linux kernel is trimmed down many modules that
some ide drivers are not included.

-- 
Regards,
Punky


Im attempting to install and run voyage-current on a CF for a soekris 4801.
This is my 1st time here, so I may be making basic errors & omissions.

I ran  ./usr/local/sbin/voyage.update
(aside: readme-HEAD doesnt have dir-path part of it)

the boot hung,  I added "ide=nodma all_generic_ide"  as Punky suggested
(I needed both, w/o all-generic-ide, it hit those sense-errors, I didnt wait..)
and also s{LABEL=ROOT_FS}{/dev/sda1} as Gustin offered
(changing ROOTFS didnt change results)
that got me to here:


[   12.066990] usb usb1: configuration #1 chosen from 1 choice
[   12.069714] hub 1-0:1.0: USB hub found
[   12.070856] hub 1-0:1.0: 3 ports detected
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Waiting for root file system ... done.
Gave up waiting for root device.  Common problems:
 - Boot args (cat /proc/cmdline)
   - Check rootdelay= (did the system wait long enough?)
   - Check root= (did the system wait for the right device?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT!  /dev/sda1 does not exist.  Dropping to a shell!

(initramfs) cat /proc/partitions
major minor  #blocks  name

   8        0     500472 sda
   8        1     500463 sda1
(initramfs) cat /proc/cmdline
root=/dev/sda1 console=ttyS0,115200n8 ide=nodma all_generic_ide

I didnt try hda1, it seems a longshot,
given that /proc/partitions seems to have what it should
I will try it, and report unexpected results

also didnt try rootdelay, any suggestions on a good value ?


[jimc at groucho voyage-current]$ more .voyage-install.conf
#
# This file generated automatically by voyage-install.sh
# on Thu Jul 22 09:07:04 MDT 2010
#

DISTDIR=/home/jimc/projects/dist-isos/voyage-current
VOYAGE_PROFILE=4801
TARGET_DISK=/dev/sdb
TARGET_PART=1
TARGET_MOUNT=/mnt/cf
BOOTSTRAP_PART=1
SYSTEM_BOOTSTRAP=grub
VOYAGE_SYSTEM_SERIAL=115200
VOYAGE_SYSTEM_CONSOLE=serial
MAKEFS=1

note: the CF mount-point during CF-install (desktop) is different than target.
I presume the LABEL should have helped with this host-vs-target problem,
but it didnt (perhaps for other reasons)


part of dmesg..

[    4.143768] Using IPI Shortcut mode
[    4.152800] Freeing unused kernel memory: 372k freed
Loading, please wait...
mount: No such device
W: devtmpfs not available, falling back to tmpfs for /dev
[    5.279192] scsi0 : ata_generic
[    5.282974] scsi1 : ata_generic
[    5.285950] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xe000 irq 14
[    5.287152] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xe008 irq 15
[    5.440491] ata1.00: CFA: SanDisk SDCFB-512, HDX 2.15, max MWDMA2
[    5.440813] ata1.00: 1000944 sectors, multi 0: LBA
[    5.442163] ata1.00: configured for PIO
[    5.455287] scsi 0:0:0:0: Direct-Access     ATA      SanDisk
SDCFB-51 HDX  PQ: 0 ANSI: 5
[    5.462804] sd 0:0:0:0: [sda] 1000944 512-byte logical blocks: (512
MB/488 MiB)
[    5.466861] sd 0:0:0:0: [sda] Write Protect is off
[    5.468885] sd 0:0:0:0: [sda] Write cache: disabled, read cache:
enabled, doesn't support DPO or FUA
[    5.476782]  sda: sda1
[    5.490581] sd 0:0:0:0: [sda] Attached SCSI removable disk


I recall some issues with master/slave on CFs in 4801s,
http://capn13.net/it/soekris.html discusses one in pebble context,
where it says:

Decided to cheat and edited /etc/fstab:

	/dev/hdb1       /       ext2    defaults,noatime,ro     0       0


I tried that:  root=/dev/hdb1 in grub, no different..

any advice ?

tia
~jimc