8eb4c624dc
Its add support for downloading the ISO image via HTTP/FTP with curl or download *.sfs files.
The files are downloaded on /run/archiso/curlspace (tmpfs) and setup a loop dev from it
(like in archiso_loop_mnt) in the ISO case, or just do a bind mount to
/run/archiso/bootmnt in the other case.
This hook must be located after archiso_pxe_nbd in mkinitcpio.conf, in that way
NBD is the default.
New bootparm:
* archiso_curl_url=(first form)
archiso_curl_url=http://192.168.0.7/archlinux/iso/archlinux.iso (absolute form)
Use an absolute URL. Fetch the entire ISO
archiso_curl_url=ftp://${pxeserver}/archlinux/iso/archlinux.iso (relative form)
Use the as IP the same server where PXE reside. Fetch the entire ISO
* archiso_curl_url=(second form)
archiso_curl_url=http://192.168.0.7/archlinux/iso/unpacked (absolute form)
Use an absolute URL. Where unpacked (an example name) is a directory where
${archisobasedir} ("arch" by default) is located with all *.sfs.
This fetch only needed files.
archiso_curl_url=ftp://${pxeserver}/archlinux/iso/unpacked (relative form)
Use the as IP the same server where PXE reside. Where unpacked (an example name)
is a directory where ${archisobasedir} ("arch" by default)
is located with all *.sfs. This fetch only needed files.
* curlspace_size= Set a size for a tmpfs filesystem where files are downloaded.
Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>
76 lines
2.9 KiB
Bash
76 lines
2.9 KiB
Bash
# vim: set ft=sh:
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run_hook() {
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if [[ -n "${ip}" && -n "${archiso_curl_url}" ]]; then
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archiso_curl_url=$(eval echo ${archiso_curl_url})
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[[ -z "${curlspace_size}" ]] && curlspace_size="75%"
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mount_handler="archiso_pxe_curl_mount_handler"
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fi
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}
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# Fetch a file with CURL
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#
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# $1 URL
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# $2 Destination directory inside curlspace
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_curl_get() {
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local _url="${1}"
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local _dst="${2}"
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msg ":: Downloading '${_url}'"
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if ! curl -f -o "/run/archiso/curlspace/${_dst}/${_url##*/}" --create-dirs "${_url}"; then
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echo "ERROR: Downloading '${_url}'"
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echo " Falling back to interactive prompt"
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echo " You can try to fix the problem manually, log out when you are finished"
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launch_interactive_shell
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fi
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}
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archiso_pxe_curl_mount_handler () {
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newroot="${1}"
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msg ":: Mounting /run/archiso/curlspace (tmpfs) filesystem, size='${curlspace_size}'"
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mkdir -p "/run/archiso/curlspace"
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mount -t tmpfs -o size="${curlspace_size}",mode=0755 curlspace "/run/archiso/curlspace"
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# Check if URL ends in /
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if [[ "${archiso_curl_url}" != "${archiso_curl_url%/}" ]]; then
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local _aitab_url="${archiso_curl_url}${aitab#/run/archiso/bootmnt/}"
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local _aitab_file="/run/archiso/curlspace/${aitab#/run/archiso/bootmnt/}"
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_curl_get "${_aitab_url}" "${archisobasedir}"
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local aitab_img aitab_mnt aitab_arch aitab_sfs_comp aitab_fs_type aitab_fs_size
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while read aitab_img aitab_mnt aitab_arch aitab_sfs_comp aitab_fs_type aitab_fs_size; do
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[[ "${aitab_img#\#}" != "${aitab_img}" ]] && continue
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[[ "${aitab_arch}" != "any" && "${aitab_arch}" != "${arch}" ]] && continue
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if [[ "${aitab_fs_type}" != "none" ]]; then
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if [[ "${aitab_sfs_comp}" != "none" ]]; then
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_curl_get "${archiso_curl_url}${archisobasedir}/${aitab_arch}/${aitab_img}.fs.sfs" "${archisobasedir}/${aitab_arch}"
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else
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_curl_get "${archiso_curl_url}${archisobasedir}/${aitab_arch}/${aitab_img}.fs" "${archisobasedir}/${aitab_arch}"
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fi
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else
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_curl_get "${archiso_curl_url}${archisobasedir}/${aitab_arch}/${aitab_img}.sfs" "${archisobasedir}/${aitab_arch}"
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fi
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done < "${_aitab_file}"
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mkdir -p "/run/archiso/bootmnt"
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mount -o bind /run/archiso/curlspace /run/archiso/bootmnt
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else
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local _dev_loop
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_curl_get "${archiso_curl_url}" "/"
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_dev_loop=$(losetup -f)
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if ! losetup "${_dev_loop}" "/run/archiso/curlspace/${archiso_curl_url##*/}"; then
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echo "ERROR: Setting loopback device '${_dev_loop}'"
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echo " for file '/run/archiso/curlspace/${archiso_curl_url##*/}'"
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echo " Falling back to interactive prompt"
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echo " You can try to fix the problem manually, log out when you are finished"
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launch_interactive_shell
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fi
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fi
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archiso_mount_handler ${newroot}
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}
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