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sysfs fails in luks encrypted gentoo
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betlor5
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Joined: 12 Jul 2013
Posts: 24

PostPosted: Fri Jul 12, 2013 8:47 pm    Post subject: sysfs fails in luks encrypted gentoo Reply with quote

Hi,

I am quite new to gentoo and have been trying to get it to run for about a week. My problem is that I'm running gentoo in a luks encrypted environment and that sysfs seems to fail if I try to start it.

Code:

/etc/init.d/sysfs start
* Mounting cgroup filesystem ...
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so
 * Mounting cgroup filesystem ... [ !! ]


my rc-update looks like this:

Code:

             bootmisc | boot                         
                 dbus |      default                 
                devfs |                       sysinit
                dmesg |                       sysinit
                 fsck | boot                         
             hostname | boot                         
              hwclock | boot                         
              keymaps | boot                         
            killprocs |              shutdown       
                local |      default                 
           localmount | boot                         
              modules | boot                         
             mount-ro |              shutdown       
                 mtab | boot                         
           net.enp4s0 |      default                 
               net.lo | boot                         
             netmount |      default                 
               procfs | boot                         
                 root | boot                         
            savecache |              shutdown       
                 swap | boot                         
            swapfiles | boot                         
               sysctl | boot                         
                sysfs |                       sysinit
         termencoding | boot                         
       tmpfiles.setup | boot                         
                 udev |                       sysinit
           udev-mount |                       sysinit
              urandom | boot                         
                  xdm |      default                 


and my tempory init in the initramfs is:

Code:

#! /bin/sh
rmap=root

export PATH=/bin:/sbin

mount -t proc none /proc
mount -t sysfs none /sys
if grep devtmpfs /proc/filesystems &>/dev/null; then
   mount -t devtmpfs devtmpfs /dev
else mount -t tmpfs tmpfs /dev; fi
mdev -s
echo /sbin/mdev > /proc/sys/kernel/hotplug

cryptsetup luksOpen /dev/sda4 vault

lvm vgscan
lvm vgchange -aly vg

mount /dev/mapper/vg-root /newroot

umount /proc
umount /dev
umount /sys

#mount -t devtmpfs none /newroot/dev
#mount -t proc none /newroot/proc
#mount -t sysfs none /newroot/sys

exec switch_root /newroot /sbin/init


actually it took me quite a while to figure that one out, so if you spott any mistakes in my init let me know. Right now I want to start kde through xorg but as you know udev only starts if sysfs is running. If I have forgotten to poste any thing of importance please let me know otherwise I hope you can help me.

Greetings
betlor5
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betlor5
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n00b


Joined: 12 Jul 2013
Posts: 24

PostPosted: Fri Jul 12, 2013 10:31 pm    Post subject: Reply with quote

Hi,

I figured it out after having a look at dmesg | tail. There it said that sysfs tried to start ext3 and ext2 even though my whole system is ext4 exclusive. I figured I might give it a try and activated the models in the kernel and now it works.
I guess posting this won't hurt.

Greetings
betlor5
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