CHEATCODES AND HINTS FOR GRML V0.1 ============================================================================== These options (can be combined) work from the isolinux bootprompt: grml acpi=off Disable ACPI configuration in Kernel 2.6 grml24 [Options...] Boots with Kernel 2.4 (2.6 is default) expert26 [Options...] Expert mode memtest Run memtest86 instead of Linux Notice: some of the following options *might* *not* work. Please report any problems you encounter to the grml-team -> http://grml.org/bugs/ grml lang=at|de|cn|da|es|fr|it specify language/keyboard grml lang=nl|pl|ru|sk|tr|tw|us specify language/keyboard grml gmt Use GMT-based time grml home=/dev/sda1/grml.img Mount loopback file as /home/grml grml home=scan Automatic search for grml homedir grml floppyconfig Run "grml.sh" from a floppy grml tz=Europe/Vienna Use this timezone for TZ grml atapicd Do NOT use SCSI-Emulation for IDE CD-ROMs grml alsa (or alsa=es1938) Use ALSA sound driver (at your own risk) grml screen=1280x1024 Use specified Screen resolution for X grml xvrefresh=60 (or vsync=60) Use 60 Hz vertical refresh rate for X grml xhrefresh=80 (or hsync=80) Use 80 kHz horizontal refresh rate for X grml xserver=XFree86|XF86_SVGA Use specified X-Server grml xmodule=ati|fbdev|i810|mga Use specified XFree4-Module (1) grml xmodule=nv|radeon|savage|s3 Use specified XFree4-Module (2) grml xmodule=radeon|svga|i810 Use specified XFree4-Module (3) grml no{apic,agp,apm,audio,ddc} Skip parts of HW-detection (1) grml no{dhcp,fstab,firewire} Skip parts of HW-detection (2) grml no{pcmcia,scsi,swap,usb} Skip parts of HW-detection (3) grml pnpbios=off No PnP Bios initialization grml acpi=off Disable ACPI Bios completely grml usb2 Try to initialize USB 2.x controller(s) failsafe Boot with (almost) no HW-detection grml pci=irqmask=0x0e98 Try this, if PS/2 mouse doesn't work *) grml pci=bios Workaround for bad PCI controllers grml ide2=0x180 nopcmcia Boot from PCMCIA-CD-ROM (some notebooks) grml mem=128M Specify Memory size in MByte grml dma Enable DMA accelleration for ALL IDE-Drives grml vga=normal No-framebuffer mode, but X grml blind Start Braille-Terminal (no X) grml brltty=type,port,table Parameters for Braille device grml wheelmouse Enable IMPS/2 protocol for wheelmice grml nowheelmouse Force plain PS/2 protocol for PS/2-mouse fb1280x1024 Use fixed framebuffer graphics (1) fb1024x768 Use fixed framebuffer graphics (2) fb800x600 Use fixed framebuffer graphics (3) grml keyboard=us xkeyboard=us Use different keyboard (text/X) grml toram Copy CD to RAM and run from there grml tohd=/dev/hda1 Copy CD to HD partition and run from there grml fromhd Skip checking for grml on CD-ROM grml fromhd=/dev/hda1 Boot from previously copied CD-Image grml bootfrom=/dev/hda1 Access Image then boot from previously copied CD-Image (enables booting from NTFS / ReiserFS) ***) grml bootfrom=/dev/hda1/GRML.iso Access image, boot from ISO-Image. ***) grml grml_dir=GRML Directory to search for on the CD. grml grml_name=GRML Cloop-File to search for on the CD. grml testcd Check CD data integrity and md5sums expert Interactive setup for experts The following options are probably broken: grml noeject Do NOT eject CD after halt grml noprompt Do NOT prompt to remove the CD |-> grml 0.1 does not eject the CD grml myconf=/dev/sda1 Run "grml.sh" from a partition grml myconf=scan (or config=scan) Try to find "grml.sh" automatically *) Try "grml pci=irqmask=0x0e98" if (you have a notebook and) your PS/2 mouse doesn't work. (Possibly caused by a BIOS-flaw on your board, BIOS updates can help.) Sometimes, switching to the text console with Control-Alt-F1 and back to the X-screen with Control-Alt-F7 solves the problem without rebooting, since the X server reinitializes the mouse driver during that procedure. *) Bootfrom needs access to a running grml-System with the same Kernel as the Bootkernel, before it is able to mount the partition / ISO-Image. This should allow a poor mans install from NTFS-Partitions and makes it also possible to boot an ISO-Image directly. You can also use wildcards in the ISO-Filename, but it must be unique. So: If you have just one GRML.iso on /dev/hda1 you can access it as: bootfrom=/dev/hda1/G*.iso, but if there are several, you need to make clear, which one you want. (Feature added by Fabian Franz.) If your GRML CD makes strange noises during boot, or you see frequent errors like "cloop: read error", or programs are crashing randomly, then your CD image is probably defective or incomplete, or your CD-burner created a defective CD due to wrong writing speed or bad media. This is the most common error reported. Please boot with "grml testcd" to check if the CD is OK, and/or even better, verify the MD5 checksums that are present on the mirrors before writing the CD. In some cases, defective IDE controllers cause this error if you have DMA enabled. Also, please read the GRML-FAQ. In case of a failing hardware autodetection, try booting with any of the "no-" options as shown in the table above, like in grml noagp noaudio noapm noapic acpi=off nodma nopcmcia noscsi nousb to skip some critical parts of the autodetection system. The "noswap" option is useful for a forensic analysis without touching existing swap partitions. Some Boards apparently don't pass the proper memory size to the linux-kernel. It may cause the message "Panic: cannot mount root file system" and the system hangs. Use "grml mem=128M" to solve that problem if your system has 128MByte memory for example (caution: you MUST use a capital "M" here). The "expert" mode provides a very simple interface to loading additional Kernel modules from floppy disks (ext2 or vfat), plus interactive configuration of mouse/keyboard/soundcard/xserver. "expert" mode supports the same boot options as "grml". The "floppyconfig" or "(my)config=/dev/partition" options allow you to reconfigure the system after autoconfiguration by running a bourne shell script called "grml.sh" from the root directory on the given device (or floppy). The shell script will also be executed at startup. |-> Important: the option might be broken in this version of grml. SCSI-Emulation is active for all CD-ROMs (unless you switch it off by using the "atapicd" option), so IDE CD-Writers should work with the installed versions of cdrecord and cdrdao. If your BIOS does not support el torito booting from CD, you can create two bootable floppy disks by issuing (from grml running on a different machine) the command "mkbootfloppy", which will create a bootable Kernel-disk plus a disk containing the initial ramdisk, which will be prompted for at boottime. If you wish to remaster the CD, please don't forget to specify -no-emul-boot -boot-load-size 4 -boot-info-table \ -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat as option to mkisofs. Otherwise your CD won't be bootable. The directory GRML, containig the compressed filesystem file "GRML", must be located in the top level directory of the CD. Caution: X-Screensaver: Don't start xlock or any screensaver that requires a password. There are no default passwords on GRML, i.e. all accounts are LOCKED unless you explicitly set a password. See also README_Security.txt about this issue. If you accidentially started a screensaver switch to one of the textconsoles by Control-Alt-F1 and kill the screensaver (or just set a password for the grml user).