On 06/11/12 08:01 AM, Philip Hands wrote:
Jack Bates <[email protected]> writes:
Hi,
How can I use sed in preseed/late_command to insert a new line, two
lines after the line which contains "<!-- Volume definitions -->", in
pam_mount.conf.xml?
Normally I'd use something like the following, but I think the sed
append command must be terminated with a newline?
> in-target sed -i '/<!-- Volume definitions -->/ {
> n
> a <volume fstype="cifs" mountpoint="~/earth"
path="students/%(USER)" pgrp="users" server="earth.lan" />
> }' etc/security/pam_mount.conf.xml
Is there any way to express this script ^ without newline characters? Is
there any way to embed newline characters in preseed/late_command
value?
You may be able to do:
in-target sed -i "$(echo '/<!-- Volume definitions -->/ {\nn\na <volume fstype="cifs" mountpoint="~/earth"
path="students/%(USER)" pgrp="users" server="earth.lan" />\n}')" etc/security/pam_mount.conf.xml
also, I don't see why you need to run this in the target chroot, so you
can probably avoid some quoting problems with something like:
sed -i "$(echo '/<!-- Volume definitions -->/ {\nn\na <volume fstype="cifs" mountpoint="~/earth"
path="students/%(USER)" pgrp="users" server="earth.lan" />\n}')" /target/etc/security/pam_mount.conf.xml
or, even, just as you'd normally do it, with the embedded newlines
(which you were presumably avoiding because of the in-target, which you
don't need as it turns out)
Thank you very much Philip, good point that in-target isn't required.
But how do you put embedded newline characters in preseed/late_command
value? My experiments with something like the following, in preseed.cfg,
failed to work:
> d-i preseed/late_command string sed -i '/<!-- Volume definitions -->/
{ n\n a <volume fstype="cifs" mountpoint="~/earth"
path="students/%(USER)" pgrp="users" server="earth.lan" />\n }'
target/etc/security/pam_mount.conf.xml
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