How do you change the size of the sage/vm console buffer?

asked 2013-01-06 13:59:26 +0100

oxeimon
23 ●1 ●3 ●5

After starting sage-5.5 by clicking "Start" in the Oracle VM VirtualBox Manager, a console opens up and appears to boot into some form of Linux.

However, there is no ability to scroll, and resizing the window does not change the size of the text buffer (the black area where the console is displayed is remains the same size and is just centered within the larger window).

answered 2013-01-07 04:22:10 +0100

ppurka
2111 ●17 ●38

You can scroll only a limited amount on the text console. Press Shift PgUp or Shift PgDown to scroll up or down.

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so there's no way to actually make the window larger?

oxeimon ( 2013-01-25 17:43:09 +0100 )edit

There is a [vga boot parameter](https://wiki.ubuntu.com/FrameBuffer) that could be used if framebuffer support is built into the kernel. This would allow the size of the window to be larger. The support for this could be disabled depending on what linux distribution is being used in the virtualbox image. EDIT: It seems there is an fbset command which can dynamically change the resolution (as long as there is framebuffer support in the kernel). Use it like this fbset -xres x_resolution -yres y_resolution

ppurka ( 2013-01-26 21:52:03 +0100 )edit

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