qubes-installer-qubes-os/anaconda/dracut/anaconda-netroot.sh

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#!/bin/bash
# network root script for anaconda.
# runs in the "online" hook, every time an interface comes online.
command -v getarg >/dev/null || . /lib/dracut-lib.sh
# initqueue/online hook passes interface name as $1
netif="$1"
# get repo info
splitsep ":" "$root" prefix repo
# no repo? non-net root? we're not needed here.
[ "$prefix" = "anaconda-net" ] && [ -n "$repo" ] || return 0
# already done? don't run again.
[ -e /dev/root ] && return 0
# user requested a specific network device, but this isn't it - bail out
[ -n "$ksdevice" ] && [ "$ksdevice" != "$netif" ] && return 0
# user didn't request a specific device, so the first one online wins!
[ -z "$ksdevice" ] && ksdevice="$netif"
command -v config_get >/dev/null || . /lib/anaconda-lib.sh
case $repo in
nfs*)
. /lib/nfs-lib.sh
info "anaconda mounting NFS repo at $repo"
str_starts "$repo" "nfsiso:" && repo=nfs:${repo#nfsiso:}
# Replace hex space with a real one. All uses of repo need to be quoted
# after this point.
repo=${repo//\\x20/ }
# Convert nfs4 to nfs:nfsvers=4
#
# The reason for this is because anaconda's nfs and dracut's nfs are different.
# dracut expects options at the end, anaconda puts them after nfs:
# dracut's nfs_to_var has a special case to handle anaconda's nfs: form but not nfs4:
if str_starts "$repo" "nfs4:"; then
repo=nfs:${repo#nfs4:}
nfs_to_var "$repo" $netif
if ! strstr "$options" "vers="; then
repo="nfs:${options:+$options,}nfsvers=4:$server:$path"
fi
else
# HACK: work around some Mysterious NFS4 Badness (#811242 and friends)
# by defaulting to nfsvers=3 when no version is requested
nfs_to_var "$repo" $netif
if ! strstr "$options" "vers="; then
repo="nfs:${options:+$options,}nfsvers=3:$server:$path"
fi
# END HACK. FIXME: Figure out what is up with nfs4, jeez
fi
if [ "${repo%.iso}" == "$repo" ]; then
mount_nfs "$repo" "$repodir" "$netif" || warn "Couldn't mount $repo"
anaconda_live_root_dir $repodir
else
iso="${repo##*/}"
mount_nfs "${repo%$iso}" "$repodir" "$netif" || \
warn "Couldn't mount $repo"
anaconda_live_root_dir $repodir $iso
fi
;;
http*|ftp*)
. /lib/url-lib.sh
info "anaconda fetching installer from $repo"
treeinfo=$(fetch_url $repo/.treeinfo) && \
stage2=$(config_get stage2 mainimage < $treeinfo)
if [ -z "$treeinfo" -o -z "$stage2" ]; then
warn "can't find installer mainimage path in .treeinfo"
stage2="images/install.img"
fi
if runtime=$(fetch_url $repo/$stage2) || runtime=$(fetch_url $repo/LiveOS/squashfs.img); then
# NOTE: Should be the same as anaconda_auto_updates()
updates=$(fetch_url $repo/images/updates.img)
[ -n "$updates" ] && unpack_updates_img $updates /updates
product=$(fetch_url $repo/images/product.img)
[ -n "$product" ] && unpack_updates_img $product /updates
anaconda_mount_sysroot $runtime
else
warn "Could not retrieve stage2 image from $repo using $netif"
fi
;;
*)
warn "unknown network repo URL: $repo"
return 1
;;
esac