aeb31b97ad
The EBS and S3 (instance-store) AMIs are now created from the same image. HVM instance-store AMIs are also generated. Disk image generation has been factored out into a function (nixos/lib/make-disk-image.nix) that can be used to build other kinds of images.
88 lines
2.7 KiB
Diff
88 lines
2.7 KiB
Diff
From 1895d10a7539d055a4e0206af1e7a9e5ea32a4f7 Mon Sep 17 00:00:00 2001
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From: Juerg Haefliger <juerg.haefliger@hp.com>
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Date: Wed, 25 Mar 2015 13:59:20 +0100
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Subject: [PATCH] Support new sfdisk version 2.26
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The sfdisk usage with version 2.26 changed. Specifically, the option
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--show-pt-geometry and functionality for CHS have been removed.
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Also, restoring a backup MBR now needs to be done using dd.
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---
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bin/growpart | 28 ++++++++++------------------
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1 file changed, 10 insertions(+), 18 deletions(-)
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diff --git a/bin/growpart b/bin/growpart
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index 595c40b..d4c995b 100755
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--- a/bin/growpart
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+++ b/bin/growpart
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@@ -28,7 +28,6 @@ PART=""
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PT_UPDATE=false
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DRY_RUN=0
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-MBR_CHS=""
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MBR_BACKUP=""
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GPT_BACKUP=""
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_capture=""
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@@ -133,7 +132,8 @@ bad_Usage() {
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}
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mbr_restore() {
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- sfdisk --no-reread "${DISK}" ${MBR_CHS} -I "${MBR_BACKUP}"
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+ dd if="${MBR_BACKUP}-${DISK#/dev/}-0x00000000.bak" of="${DISK}" bs=1 \
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+ conv=notrunc
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}
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sfdisk_worked_but_blkrrpart_failed() {
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@@ -148,34 +148,26 @@ sfdisk_worked_but_blkrrpart_failed() {
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mbr_resize() {
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RESTORE_HUMAN="${TEMP_D}/recovery"
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- MBR_BACKUP="${TEMP_D}/orig.save"
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+ MBR_BACKUP="${TEMP_D}/backup"
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local change_out=${TEMP_D}/change.out
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local dump_out=${TEMP_D}/dump.out
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local new_out=${TEMP_D}/new.out
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local dump_mod=${TEMP_D}/dump.mod
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- local tmp="${TEMP_D}/tmp.out"
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- local err="${TEMP_D}/err.out"
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- local _devc cyl _w1 heads _w2 sectors _w3 tot dpart
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+ local tot dpart
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local pt_start pt_size pt_end max_end new_size change_info
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- # --show-pt-geometry outputs something like
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- # /dev/sda: 164352 cylinders, 4 heads, 32 sectors/track
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- rqe sfd_geom sfdisk "${DISK}" --show-pt-geometry >"${tmp}" &&
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- read _devc cyl _w1 heads _w2 sectors _w3 <"${tmp}" &&
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- MBR_CHS="-C ${cyl} -H ${heads} -S ${sectors}" ||
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- fail "failed to get CHS from ${DISK}"
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+ tot=$(sfdisk --list "${DISK}" | awk '{ print $(NF-1) ; exit }') ||
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+ fail "failed to get total number of sectors from ${DISK}"
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- tot=$((${cyl}*${heads}*${sectors}))
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+ debug 1 "total number of sectors of ${DISK} is ${tot}"
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- debug 1 "geometry is ${MBR_CHS}. total size=${tot}"
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- rqe sfd_dump sfdisk ${MBR_CHS} --unit=S --dump "${DISK}" \
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+ rqe sfd_dump sfdisk --dump "${DISK}" \
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>"${dump_out}" ||
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fail "failed to dump sfdisk info for ${DISK}"
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-
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{
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- echo "## sfdisk ${MBR_CHS} --unit=S --dump ${DISK}"
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+ echo "## sfdisk --dump ${DISK}"
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cat "${dump_out}"
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} >"${RESTORE_HUMAN}"
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[ $? -eq 0 ] || fail "failed to save sfdisk -d output"
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@@ -237,7 +229,7 @@ mbr_resize() {
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exit 0
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fi
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- LANG=C sfdisk --no-reread "${DISK}" ${MBR_CHS} --force \
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+ LANG=C sfdisk --no-reread "${DISK}" --force \
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-O "${MBR_BACKUP}" <"${new_out}" >"${change_out}" 2>&1
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ret=$?
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[ $ret -eq 0 ] || RESTORE_FUNC="mbr_restore"
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--
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2.1.4
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