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| author |   Eric Hameleers <alien@slackware.com> | 2016-01-01 17:59:30 +0100 |
|---|---|---|
| committer | Eric Hameleers <alien@slackware.com> | 2016-01-01 17:59:30 +0100 |
| commit | b225306ea0f156fc865fb20b1059cb00dc3b56d0 (patch) | |
| tree | 5f8630b2dcbc0c2761305a63a4adb220fff6f4eb /make_slackware_live.sh | |
| parent | e097d633220a415704f1c1f5e654f4eccc83e9ac (diff) | |
| download | liveslak-b225306ea0f156fc865fb20b1059cb00dc3b56d0.tar.gz liveslak-b225306ea0f156fc865fb20b1059cb00dc3b56d0.tar.xz | |
Use more compatible isohybrid commandline parameters.
This modifies Didier's original patch with a simpler set of parameters.
His recommendations are based on these threads:
http://www.syslinux.org/archives/2015-February/023256.html
http://www.syslinux.org/archives/2015-May/023455.html
http://www.syslinux.org/archives/2014-July/022538.html
The new parameters allow the big ISOs to be booted in VBox.
Patch proposed by Didier Spaier.
Diffstat (limited to 'make_slackware_live.sh')
| -rwxr-xr-x | make_slackware_live.sh | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/make_slackware_live.sh b/make_slackware_live.sh index 043e590..ed60869 100755 --- a/make_slackware_live.sh +++ b/make_slackware_live.sh @@ -1421,24 +1421,23 @@ rm -rf ./boot cd - 1>/dev/null SIZEISO=$(stat --printf %s ${OUTPUT}/slackware${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso) -# We want at most 1024 cylinders for old BIOS; also we want no more than -# 63 sectors, no more than 255 heads, which leads to a cut-over size:. -# 64 (heads) *32 (sectors) *1024 (cylinders) *512 (bytes) = 1073741824 bytes. -# However, for sizes > 8422686720 compatibility will be out the window anyway. -if [ $SIZEISO -gt 8422686720 ]; then - isohybrid -u ${OUTPUT}/slackware${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso +# We want no more than 63 sectors, no more than 255 heads, according to +# recommendations from Thomas Schmitt, xoriso developer. +if [ $SIZEISO -gt 1073741824 ]; then + # No more than 63 sectors, no more than 255 heads. We will not try to stick + # to less than 1024 cylinders though: + SECTORS=63 + HEADS=255 else - if [ $SIZEISO -gt 1073741824 ]; then - # No more than 63 sectors, no more than 255 heads. - SECTORS=63 - HEADS=$(( ($SIZEISO/1024/63/512) + 2 )) - else - # The default values for isohybrid that give a size of 1073741824 bytes. - SECTORS=32 - HEADS=64 - fi - isohybrid -s $SECTORS -h $HEADS -u ${OUTPUT}/slackware${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso + # The default values for isohybrid gives us a max size of 1073741824 bytes: + # We want at most 1024 cylinders for old BIOS; also we want no more than + # 63 sectors, no more than 255 heads, which leads to a cut-over size:. + # 64 (heads) *32 (sectors) *1024 (cylinders) *512 (bytes) = 1073741824 bytes. + SECTORS=32 + HEADS=64 fi +isohybrid -s $SECTORS -h $HEADS -u ${OUTPUT}/slackware${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso + cd ${OUTPUT} md5sum slackware${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso \ > slackware${DIRSUFFIX}-live${ISOTAG}-${SL_VERSION}.iso.md5 |