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The time now is Fri 24 May 2013, 15:24 All times are UTC - 4 |
 Forum index » House Training » Beginners Help ( Start Here) |
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Disable swap and mount disks readonly - how? (Solved)
Moderators: Flash, Ian, JohnMurga |
 
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geep
Joined: 25 Dec 2012 Posts: 2 |
Hi, 1/ I'm using Slacko Puppy v5.4 to retrieve files from a dying PC. Booting off a DVD and saving stuff to a USB stick. The dying PC has a couple of disks with Linux swap files, and I can see that Puppy is using one of these swapfiles. I don't want to write anything at all to the hard disks as the PC is very sick. Want to tell Puppy at boot to not use the swap partitions at all. Also can't see how to mount hard disks readonly. Any help appreciated. 2/ I have found Slacko amazing - have installed several Slackware binary packages direct from Slackware (perl, python, gcc-gfortran etc.) and also compiled from slackbuilds.org. But haven't found any clear instructions on how to create .sfs archives. Some of the things I've compiled - e.g. R and gdal - I'd like to package as .sfs. Any pointers to a good .sfs tutorial? Cheers, Peter |
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Atle
Joined: 19 Nov 2008 Posts: 214 Location: Oslo, Norway |
Aint got no pointer to SFS tutorial, but you can at least use Gparted to delete the swap drive... Menu System Gparted Remember to pick the right drive and not your USB mem stick. |
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rhadon
 Joined: 27 Mar 2008 Posts: 1228 Location: Germany |
Type man mount in a console. Under Options you'll find the option -r. E.g. if you want to mount sdb1 read only:
If /mnt/sdb1 doesn't exist, you have to create this folder manually. About swap you can type swapoff or swapon and you'll get a list of options. swapoff -a should work. Also from gparted it should be possible to switch on or off without deleting. Cheers, Rolf Edit: For building a sfs you can use the commands dir2sfs or mksquashfs. Or maybe Pet_Maker-2.0.pet, you can find here, but I haven't tested. _________________ Ich verwende "frugal", und das ist gut so. 
Raspberry Pi without Puppy? No, thanks. |
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geep
Joined: 25 Dec 2012 Posts: 2 |
1/ Cheers guys. Am now happily switching swap on and off. 2/ And I found elsewhere all about .sfs files. Found it was pretty simple to use a standard .SlackBuild script to compile a Slackware package, and with 4 additional lines of bash script was able to create an .sfs package. In case anybody is interested, this is my trivial recipe used to build the .sfs after building gdal as downloaded from http://slackbuilds.org/repository/14.0/libraries/gdal/
Similar recipe should work for any well-behaved .SlackBuild script. It could probably be generalized using the environment variables from the .SlackBuild script. It's probably worth looking at the autogenerated (by makepkg) doinst.sh just to check it's sensible. (Note to anybody copying this slavishly without engaging brain - gdal needs both geos and proj - I had already installed these.) I built both zip and xz compressed .sfs to compare the sizes. They are both bigger than the Slackware .txz package. -rwxr-xr-x 1 root root 5.5M Jan 1 14:26 gdal-1.9.1-i486-1_SBo.xz.sfs -rwxr-xr-x 1 root root 7.0M Jan 1 14:26 gdal-1.9.1-i486-1_SBo.zip.sfs -rw-r--r-- 1 root root 4.5M Dec 22 22:30 gdal-1.9.1-i486-1_SBo.txz I came to the conclusion that there's little point in building an .sfs for something as small as gdal. Seems better to build and install the Slackware .txz. But there could be some mileage in building a package containing the prerequisites too - gdal, geos and proj all together. Or maybe for something big like vlc, especially if you build it with all (or most) of its dependencies statically linked. Cheers, Peter |
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Disable swap and mount disks readonly - how? (Solved)
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