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alpine-devel

[alpine-devel] Re: [Patch] mkinitfs - Support for rootfstype and rootflags

From: Olivier Mauras <olivier_at_mauras.ch>
Date: Tue, 17 Mar 2015 08:36:26 +0200

Please find the update patch below:

 From acda031c6cc79f427b90d4395b95b3472b6c587d Mon Sep 17 00:00:00 2001
 From: Olivier Mauras <olivier_at_mauras.ch>
Date: Mon, 2 Mar 2015 11:30:17 +0100
Subject: Add support for two new options in the cmdline.
  - rootfstype: Let's you specify the type of filesystem for the root fs
  - rootflags: Let's you specify mount options for the root fs - If
specified, "ro" flag won't be added by default

This has primarily been setup to be able to boot Alpine guests from a
9P virtio share and make it easy to change mount options from
libvirt/qemu

diff --git a/initramfs-init.in b/initramfs-init.in
index fd3e510..10116f9 100755
--- a/initramfs-init.in
+++ b/initramfs-init.in
_at_@ -387,8 +387,8 @@ eval set -- `cat /proc/cmdline`

  myopts="alpine_dev autodetect autoraid chart cryptroot cryptdm
debug_init
          dma init_args keep_apk_new modules ovl_dev pkgs quiet root_size root
- usbdelay ip alpine_repo apkovl alpine_start splash blacklist
- overlaytmpfs"
+ rootfstype rootflags usbdelay ip alpine_repo apkovl alpine_start
+ splash blacklist overlaytmpfs"

  for opt; do
          case "$opt" in
_at_@ -551,8 +551,20 @@ if [ -n "$KOPT_root" ]; then
                  mount -t tmpfs root-tmpfs /media/root-rw
                  mkdir -p /media/root-rw/work /media/root-rw/root
                  mount -t overlay -o
lowerdir=/media/root-ro,upperdir=/media/root-rw/root,workdir=/media/root-rw/work
overlayfs $sysroot
+ elif [ -n $KOPT_rootfstype ]; then
+ if [ -n $KOPT_rootflags ]; then
+ rootflags="$KOPT_rootflags"
+ else
+ rootflags="ro"
+ fi
+ retry_mount -t $KOPT_rootfstype -o $rootflags $KOPT_root $sysroot
2>/dev/null
          else
- retry_mount -o ro $KOPT_root $sysroot 2>/dev/null
+ if [ -n $KOPT_rootflags ]; then
+ rootflags="$KOPT_rootflags"
+ else
+ rootflags="ro"
+ fi
+ retry_mount -o $rootflags $KOPT_root $sysroot 2>/dev/null
          fi

          eend $?
-- 
cgit v0.10.1
---
Direct link if needed 
http://git.mauras.ch/mkinitfs/patch/?id=acda031c6cc79f427b90d4395b95b3472b6c587d
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Received on Tue Mar 17 2015 - 08:36:26 GMT