X-Git-Url: http://git.grml.org/?p=grml2usb.git;a=blobdiff_plain;f=grml2usb.8.txt;h=59c562732b5095de40fafa7fc63006e7d8b181b4;hp=8f3d776d2eaa8aa26f6bdea04153bff06b191228;hb=1d62665b55631ae470ed65fa61d517e3392da108;hpb=4ad3f720d7ebe6040f3cc5129ec11d23a2b640ba diff --git a/grml2usb.8.txt b/grml2usb.8.txt index 8f3d776..59c5627 100644 --- a/grml2usb.8.txt +++ b/grml2usb.8.txt @@ -27,9 +27,9 @@ just pressing enter on the bootprompt or wait until the boot timeout matches). [IMPORTANT] By default a compatible master boot record (MBR) is installed on the device (being for example /dev/sdX when executing 'grml2usb grml.iso /dev/sdX1') and -grub is being used as default bootloader. Avoid installation of the default MBR -using the '--skip-mbr' option or if you encounter any problems with the default -MBR consider using '--syslinux-mbr' instead. +syslinux is being used as default bootloader. Avoid installation of the default +MBR using the '--skip-mbr' option or if you encounter any problems with the +default MBR consider using '--syslinux-mbr' instead. [NOTE] Whereas grml2usb is the script to install recent grml ISOs (>=2009.10) the @@ -51,7 +51,8 @@ The following options are supported: *\--bootoptions=...*:: -Use specified bootoptions as default. +Use specified bootoptions as default. To use flavour name as a argument for a +boot parameter use %flavour which will be expanded to the flavour name. *\--bootloader-only*:: @@ -78,12 +79,15 @@ Format specified partition with FAT16. Force any (possible dangerous) actions requiring manual interaction (like --fat16). + *\--grub*:: + +Install grub bootloader instead of (default) syslinux. + *\--grub-mbr*:: Install grub into MBR (Master Boot Record) instead of PBR (Partition Boot -Record). This option sadly had to be introduced because grub2 can not be -installed to partitions (PBR) instead of MBR anymore. Check out <> for further details. +Record). Check out <> for further details. *\--help*:: @@ -323,6 +327,19 @@ kernel loads but you very soon get the error message. *Reason*:: the partition layout is not ok. Very probably there's no primary partition (/dev/sdX{1..4}) or none has the flag 'bootable' set. +*Error message*:: Boot error. + +*Reason*:: Some BIOSses offer different modes for USB booting. The proper mode +to boot a USB stick is USB-HDD. If that doesn’t work or is not supported by your +system, you need to format your USB-Stick as USB-ZIP. To do this, syslinux +contains an utility called mkdiskimage, which you can use to re-format your USB +stick in USB-ZIP format running 'mkdiskimage -4 /dev/sdX 1 64 32'. Please be +aware that this procedure will erase all data on your stick. After executing +mkdiskimage just continue installing as usual (grml2usb ... /dev/sdX4). Note +that this is not going to work for any device larger than 8 GB, since +mkdiskimage only supports 1024c 256h 63s. For a more detailed explanation, refer +to /usr/share/doc/syslinux-common/usbkey.txt. + *Error message*:: No operating system found. *Reason*:: you forgot to set the boot-flag on the partition. Or there really isn't @@ -525,19 +542,14 @@ The following message: grub-setup: warn: Embedding is not possible. GRUB can only be installed in this setup by using blocklists. However, blocklists are UNRELIABLE and its use is discouraged. grub-setup: error: Cannot read `/grub/core.img' correctly -appears because recent grub2 versions sadly introduced a regression which avoids -that grub is being installed into a partition (PBR, Partition Boot Record) -instead of MBR (Master Boot Record). +appears when using grub2 versions older than 1.98 as those version introduced a +regression which avoids that grub is being installed into a partition (PBR, +Partition Boot Record) instead of MBR (Master Boot Record). -To work around this issue you can install grub into the MBR (Master Boot Record) -using the '--grub-mbr' option of grml2usb or switch to syslinux as bootmanager -(just drop the '--grub' option). - -To fix this issue manually you can also execute (adjust '/dev/sdX' to your -device of course): - - mount /dev/sdX1 /mnt/test - grub-install --force --recheck --no-floppy --root-directory=/mnt/test /dev/sdX +To work around this issue you can either 1) upgrade to grub versions >=1.98, 2) +install grub into the MBR (Master Boot Record) using the '--grub-mbr' option of +grml2usb or 3) switch to syslinux as bootmanager (just drop the '--grub' +option). [[splash-xpm]] I'm getting something like "Error: /usr/share/grml2usb/grub/splash.xpm.gz can not be read"!? @@ -643,6 +655,12 @@ default bootoptions. Install specified ISO on device /dev/sdX1 remove vga=791 and quiet from existing bootoptions. + # grml2usb --bootoptions="persistent-path=%flavour_name" grml64_2010.04.iso grml_2010.04.iso /dev/sdX1 + +Install specified Isos on device /dev/sdx and add parameter persisten-path +to every menu entry. %flavour_name will be expanded to the flavour of the specific +iso, e.g. grml64 and grml. + [[ressources]] Online Ressources -----------------