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4
votes
2answers
733 views

Using FlashCache on /var on startup

I would like to have FlashCache cache my /var partition however I can't seem to get it to play nice upon bootup (IE: not really sure how to do it). I'm not sure if I need to modify the initramfs/use ...
3
votes
5answers
16k views

Logical volumes are inactive at boot time

I resized my logical volume and filesystem and all went smoothly. I installed new kernel and after reboot I can't boot neither current nor former one. I get volume group not found error after ...
3
votes
2answers
915 views

Why use nash instead of busybox in initrd and initramfs?

Why use nash instead of busybox in initrd and initramfs? I'm just looking for pros and cons of both really (and any other applications with similar functionality). I'm currently leaning towards ...
3
votes
1answer
3k views

Centos 6 - How to upgrade module located inside initramfs?

We have recently upgraded our e1000e (intel ethernet) module on one of our centos 6.0 boxes. Even tho the module compile and installed fine, the old version is still being used. We have tracked this ...
3
votes
1answer
69 views

RAID-5 array being split on reboot (ubuntu)

I've set up a RAID-5 array on Ubuntu 13.04 (kernel 3.8.0-27-generic) using mdadm - v3.2.5 - 18th May 2012. It appears to work fine and be in high spirits: $ cat /proc/mdstat Personalities : ...
2
votes
1answer
1k views

software RAID array not starting in initramfs on Debian

One of my Debian servers (kernel 2.6.30-AMD64) refuses to start the software RAID array that houses the root partition in initramfs. It dumps me with a busybox console. When I follow the necessary ...
2
votes
1answer
214 views

Possible to use /dev/mapper in custom initrd (CentOS/RHEL)?

I'm attempting to setup a mapper device prior to boot as it requires use of my /var partition which is relied heavily upon startup. My issue is it's seemingly failing and not providing any output - ...
1
vote
7answers
7k views

What tells initramfs or the Ubuntu Server boot process how to assemble RAID arrays?

The simple question: how does initramfs know how to assemble mdadm RAID arrays at startup? My problem: I boot my server and get: Gave up waiting for root device. ALERT! /dev/disk/by-uuid/[UUID] does ...
1
vote
1answer
947 views

Rackspace Ubuntu 12.04 server stuck in initramfs after kernel upgrade

Can't boot after I did a aptitude full-upgrade and let it update menu.lst (did a diff first and it looked good). This is what I've done so far in the BusyBox shell: mkdir /tmp/xvda1 mount /dev/xvda1 ...
1
vote
1answer
919 views

Ubuntu RAID5 Software Raid inactive - unable to boot into Ubuntu from non-raid drive

I have a server with 6 disks in it, 5 of which are in a RAID5 array. I came home from work today to find that the landlord had been through the house with a sparky, and the power had been reset. Now, ...
1
vote
1answer
5k views

New install Ubuntu 10.10 Server, won't boot. “ls /dev/disk/by-uuid” generates Bus Error

I installed Ubuntu 10.10 Server on a very old computer (bought it in 2002), but it won't boot. It tells me it can't find the root mount volume by it's UUID and also gives me the follwing type of ...
1
vote
2answers
197 views

Ubuntu Server 12.10: set up network bridge in the initramfs pre-boot environment

In this scenario, I have a machine that boots its root volume off of iSCSI, and it only has a single network interface. If network configuration is done the normal way, then taking the interface down ...
1
vote
2answers
385 views

Configure initramfs-tools to add curl to the initramfs, and run curl in a script at boot while in intitrd in Ubuntu 10.04 Server

I'm trying to learn how the initramfs works and how it may be configured. I would like curl to be added to the packages available in the initramfs, and run a script which uses curl during boot (which ...
0
votes
2answers
794 views

Getting debug output from a debian initramfs

I'm attempting to configure a server for a debian lenny on software raid0 and a LVM root filesystem via the serial console and the hosting company's recovery console (basically an ubuntu liveCD). ...
0
votes
1answer
127 views

Linux initramfs read-only

In a Linux system consisting of a bootloader, the kernel and an initramfs (no block devices, no other root filesystem): Is it possible to make the initramfs read-only once expanded into memory?
0
votes
1answer
204 views

Changing boot device in initramfs on the fly?

I try to boot a XEN VM and it looks like the hard drive naming changed from /dev/sda1 to /dev/hda1. So the boot process drops me to a busy box in initramfs. How can I specify the probably right boot ...
0
votes
1answer
194 views

What part of initramfs (Ubuntu) runs scripts/local?

I'm trying to understand how Ubuntu 12.04's initramfs runs scripts/local and in what order. I don't see it in init. What line of code runs scripts/local?
0
votes
1answer
203 views

Reassembling Raid 10 in Ubuntu from the initramfs menu

My raid 10 - used for / - has failed for my Ubuntu box. I replaced the bad disk and I am trying to reassemble the raid from the initramfs menu. I have tried starting the degraded Raid and using the ...
0
votes
1answer
806 views

auto assembling mdadm created RAID - initramfs doesn't change

(Ubuntu 10.10 + mdadm 3.1.4) I have my raid described in /etc/mdadm/mdadm.conf: HOMEHOST <system> ARRAY metadata=imsm UUID=46e68921:eea24d1d:e933eee8:192d55bc ARRAY /dev/md/Volume0 ...
0
votes
0answers
47 views

wrong # of devices in raid set after dmraid -ay ubuntu 10.04 server

After restarting my server i got (initramfs) prompt. Then i did dmraid -ay for activating raid devices. Then am getting errors as follows, wrong # of devices in raid set " device name" /dev/sda ...
0
votes
1answer
455 views

NFS-Root not working when booting over PXE

I am desperately trying to get a diskless client running over PXE-Boot using a NFS-Share as a root file system. I did this before some years ago but for some reason I am stucked at this since days. ...
0
votes
0answers
329 views

Custom initramfs

I'm trying to use a initramfs-image to PXE-boot a machine and I want to have that image to "only" load drivers and initialize the hardware, then I want to hand over to a custom bash-script that will ...
0
votes
1answer
428 views

How to create initramfs with non-modular kernel?

I've got following situation, I currently I use dm-crpyt on top of vlm on my rootfs and I need initramfs for unlock and mount LVM volumes. It works well with modular kernel, I compile kernel, create ...
0
votes
1answer
163 views

Can't limit mdadm's detection

I've got a problem with mdadm and generating initrd. I had some problems with one disk, so suddenly mdadm started detecting my raid1 arrays to be on hda, hdb2, hdb3 - even though they should really ...
-2
votes
1answer
165 views

Initramfs failure, Ubuntu 10.10 32bit during boot [closed]

I am getting initramfs error. I found Ubuntu server won't boot, stops at initramfs link on ServerFault. But the solution didn't worked for me. Please suggest the solution. Any help would be ...
-3
votes
1answer
492 views

How can I run Linux from RAM only [duplicate]

Possible Duplicate: Copy OS to tmpfs from initramfs I am putting together a new server with 64GB of RAM and I would like to copy the whole Linux OS into RAM from the disk and run the ...
-3
votes
1answer
156 views

Copy OS to tmpfs from initramfs [closed]

I am putting together a new server with 64GB of RAM and I would like to copy the whole Linux OS into a tmpfs from the disk and use the tmpfs as the OS (and I will use rsync to back up the tmpfs to ...