On Fri, 25 Feb 2011 08:10:03 +0100
"Wei Liang(David)" <weiliang@danfoss.com> wrote:
> Hi ,> I want to install alpine to a very old computer using btrfs> as a VOIP server. I have been searching the internet but no manual> for Alpine linux. Is there any reference for this ?
There was a bug in btrfs(?) that caused apk-tools to think it was
running on tmpfs. This caused some problems. Might be fixed in 2.6.37
kernel.
Generally, you can mount your disk layout on a tmpdir and run
setup-disk /your/root/mount
Since I dont think the bootloader supports btrfs you'll need /boot on
ext3.
so if you have a small sda1 with ext3 and a big sda2 with btrfs you are
supposed to be able to do:
mount -t btrfs /dev/sda2 /mnt
mkdir /mnt/boot
mount -t ext3 /dev/sda1 /mnt/boot
setup-disk /mnt
but...
I'm not sure if that will work like that. You will also need to make
sure that the initrafms has the btrfs kernel module included and gets
loaded. So before you run setup-disk /mnt:
echo "kernel/fs/btrfs" > /etc/mkinitfs/modules.d/btrfs
# add btrfs to features in /etc/mkinitfs/mkinitfs.conf
then you run setup-disk /mnt
and after you mount it again and edit the extlinux.conf and add btrfs
to modules=....
Something like that.
Would be nice if you report any bugs if setup-disk fails and write a
howto on wiki if you get it running.
Thanks!
> 敬礼 | Med venlig hilsen | Best regards> David Wei>
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Hi Natanael,
Thank you very much for the message.
What I just did is to install the btrfs-progs-0.19-r0.apk downloaded from "http://dl-3.alpinelinux.org/alpine/edge/x86/test" ,format my partition as btrfs and mount it under /mnt. I did do this "
echo "kernel/fs/btrfs" > /etc/mkinitfs/modules.d/btrfs
# add btrfs to features in /etc/mkinitfs/mkinitfs.conf
".
But when I type "setup-disk /mnt" ,I got " btrfs is not supported. Only ext2 and ext3 are supported". Does it mean that I need to update some package?
Thank you very much again!
敬礼 | Med venlig hilsen | Best regards
David Wei
-----Original Message-----
From: Natanael Copa [mailto:ncopa@alpinelinux.org]
Sent: 2011年2月26日 23:58
To: Wei Liang(David)
Cc: alpine-devel@lists.alpinelinux.org
Subject: [alpine-devel] Re: [acf] How to install alpine on btrfs
On Fri, 25 Feb 2011 08:10:03 +0100
"Wei Liang(David)" <weiliang@danfoss.com> wrote:
> Hi ,> I want to install alpine to a very old computer using btrfs> as a VOIP server. I have been searching the internet but no manual> for Alpine linux. Is there any reference for this ?
There was a bug in btrfs(?) that caused apk-tools to think it was
running on tmpfs. This caused some problems. Might be fixed in 2.6.37
kernel.
Generally, you can mount your disk layout on a tmpdir and run
setup-disk /your/root/mount
Since I dont think the bootloader supports btrfs you'll need /boot on
ext3.
so if you have a small sda1 with ext3 and a big sda2 with btrfs you are
supposed to be able to do:
mount -t btrfs /dev/sda2 /mnt
mkdir /mnt/boot
mount -t ext3 /dev/sda1 /mnt/boot
setup-disk /mnt
but...
I'm not sure if that will work like that. You will also need to make
sure that the initrafms has the btrfs kernel module included and gets
loaded. So before you run setup-disk /mnt:
echo "kernel/fs/btrfs" > /etc/mkinitfs/modules.d/btrfs
# add btrfs to features in /etc/mkinitfs/mkinitfs.conf
then you run setup-disk /mnt
and after you mount it again and edit the extlinux.conf and add btrfs
to modules=....
Something like that.
Would be nice if you report any bugs if setup-disk fails and write a
howto on wiki if you get it running.
Thanks!
> 敬礼 | Med venlig hilsen | Best regards> David Wei>
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On Tue, 1 Mar 2011 04:33:29 +0100, Wei Liang(David) wrote:
> Hi Natanael,> Thank you very much for the message.> What I just did is to install the btrfs-progs-0.19-r0.apk downloaded> from "http://dl-3.alpinelinux.org/alpine/edge/x86/test [1]" ,format > my> partition as btrfs and mount it under /mnt. I did do this "> echo "kernel/fs/btrfs" > /etc/mkinitfs/modules.d/btrfs> # add btrfs to features in /etc/mkinitfs/mkinitfs.conf> ".>> But when I type "setup-disk /mnt" ,I got " btrfs is not supported. > Only> ext2 and ext3 are supported". Does it mean that I need to update some> package?> Thank you very much again!
Yes. you will need alpine-conf-2.6 (which is not yet released). You can
easily grab it from git though:
wget
http://git.alpinelinux.org/cgit/alpine-conf.git/plain/setup-disk.in
sh setup-disk.in /mnt
That said, I also found out that the crc32c kernel module needs to be
in the initramfs module. I think its not a dependency due to there are 2
ifferent crc32c modules (crc32c and crc32c-intel) where -intel variant
is available when sse4 is enabled.
So to conclude:
# boot up 2.1.4 iso
# config basics
setup-alpine
# add edge repos
echo "http://nl.alpinelinux.org/alpine/edge/main" >
/etc/apk/repositories
echo "http://nl.alpinelinux.org/alpine/edge/testing" >
/etc/apk/repositories
# upgrade (you might need do an apk-tools workaround which I skip here)
apk update
apk upgrade
# install needed tools. mkinitfs is for our config modification
apk add mkinitfs e2fsprogs btrfs-progs
# add btrfs modules to mkinitfs + needed crc32c
echo "kernel/crypto/crc32c*" > /etc/mkinitfs/modules.d/btrfs
echo "kernel/fs/btrfs" >> /etc/mkinitfs/modules.d/btrfs
# create partitions (mark sda1 as bootable)
# in this example I have sda1=/boot, sda2=swap and sda3=/
fdisk /dev/sda
# create filesystems
mkfs.ext3 /dev/sda1
mkswap /dev/sda2
mkfs.btrfs /dev/sda3
# mount filesystems
mount -t btrfs /dev/sda3 /mnt
mkdir /mnt/boot
mount -t ext3 /mnt/boot
# get latest setup-disk from git:
wget
http://git.alpinelinux.org/cgit/alpine-conf.git/plain/setup-disk.in
# install system on mounted /mnt
sh setup-disk.in -v /mnt
# umount and reboot. remove cdrom
umount /mnt/boot /mnt
reboot
I will add btrfs support to mkinitfs and release alpine-conf (with the
mentioned setup-disk) asap.
btw, I think putting / on lvm should work too.
Thanks!
-nc
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