Failed to parse block device name for '/dev/sda7' unknown

CaspianXI · 2008-05-13 22:46:11

I just did a pacman update, and now I'm confronted with the following messages when I try to boot:

ERROR: Failed to parse block device name for '/dev/sdb7' unknown
ERROR: root fs cannot be detected. Try using the rootfstype= kernel parameter.
Waiting for devices to settle...done.

Root device '/dev/sdb7' doesn't exist, attempting to create it
ERROR: Failed to pars block device name for '/dev/sdb7'
ERROR: Unable to create/detect root device '/dev/sdb7'
Dropping recovery shell... type 'exit' to reboot
NOTE: klibc contains no 'ls' binary, use 'echo *' instead

If device '/dev/sdb7' gets created while you are here, try adding 'rootdelay=8' or higher to the kernel command-line

I've tried using "sda" instead of "sdb", but that doesn't work, either. I've also tried "hda", but no dice (btw... how to I know what to use?)

I've tried reinstalling/rolling back my kernel... and I made sure that I use "pata" in the "HOOKS=" line of /etc/mkinitcpio.conf

I must be missing something... what am I doing wrong?

Thanks .

pikass · 2008-05-13 22:56:34

Did you try the fallback initrd?

CaspianXI · 2008-05-14 02:40:04

Even selecting the "fallback" option from Grub yields the same error message. I can't seem to find what I'm missing, here...

acwaman · 2008-05-17 01:42:42

What do you get for sda7 or sdb7 from the mount command? I would rerun pacman.
From your - NOTE: klibc contains no 'ls' binary, use 'echo *' instead, I would guess this lib possibly has a problem.

CaspianXI · 2008-05-17 15:55:27

I can mount /dev/sd17 fine... but /dev/sdb7 doesn't exit.

I finally gave up on this problem and reinstalled... still have no clue what caused this problem...

chapet · 2008-05-18 10:14:13

I have the same problem intermittently.
When it happens I just type exit and most of the times it works fine after reboot.
But as I said is very intermittent.

aantipop · 2008-06-04 21:31:25

i have exaclty the same problem: http://bbs.archlinux.org/viewtopic.php? … 39#p376939
whats wrong here ?

4s|m3tr|ko0 · 2008-10-16 22:36:55

If having this problem intermittently, try to add the kernel command 'rootdelay=8' on the kernel command line of grub, that should do the trick.

B4RR13N705 · 2009-06-20 19:53:57

Same problem here with new RT kernel, i tried rootdelay, rootfstype but nothing. There may some problem n common. What type of HD are you people using? how about kernel?
Im using a SATA HD but arch detects it as an ATA device. weird...
kernel - 2.6.29.5, realtime patched.

Ineluki · 2009-10-25 11:43:12

I had the same problem yesterday just after an update, I don't know what to do, neither rootfstype nor rootdelay options have worked. Please I need some help

Gen2ly · 2009-10-25 16:59:17

Note: Probably better to open up a new topic on this Ineluki and describe the details as best as you can.

http://wiki.archlinux.org/index.php/For … Bumping.27

Arch Linux

#1 2008-05-13 22:46:11

Failed to parse block device name for '/dev/sda7' unknown

#2 2008-05-13 22:56:34

Re: Failed to parse block device name for '/dev/sda7' unknown

#3 2008-05-14 02:40:04

Re: Failed to parse block device name for '/dev/sda7' unknown

#4 2008-05-17 01:42:42

Re: Failed to parse block device name for '/dev/sda7' unknown

#5 2008-05-17 15:55:27

Re: Failed to parse block device name for '/dev/sda7' unknown

#6 2008-05-18 10:14:13

Re: Failed to parse block device name for '/dev/sda7' unknown

#7 2008-06-04 21:31:25

Re: Failed to parse block device name for '/dev/sda7' unknown

#8 2008-10-16 22:36:55

Re: Failed to parse block device name for '/dev/sda7' unknown

#9 2009-06-20 19:53:57

Re: Failed to parse block device name for '/dev/sda7' unknown

#10 2009-10-25 11:43:12

Re: Failed to parse block device name for '/dev/sda7' unknown

#11 2009-10-25 16:59:17

Re: Failed to parse block device name for '/dev/sda7' unknown

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