Can't boot USB (0.3.7)

Post in this forum for problems at boot time, if there was no problem for burning the disc. For example can't find the CD, or strange errors when you press enter at the very first prompt.
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BackSeat
Posts: 2
Joined: 13 Aug 2007, 08:48

Can't boot USB (0.3.7)

Post by BackSeat » 13 Aug 2007, 09:02

I followed the instructions for creating a USB stick; upon trying to boot it reports "Missing Operating System".

I tried mounting sysrcd.dat from the CD and that gives errors:

Code: Select all

09:58 ws tmp # file sysrcd.dat 
sysrcd.dat: Squashfs filesystem, little endian, version 3.0, 110599683 bytes, 21301 inodes, blocksize: 65536 bytes, created: Fri Jul 13 18:57:09 2007
09:58 ws tmp # mount -t squashfs -o loop /tmp/sysrcd.dat /mnt
mount: wrong fs type, bad option, bad superblock on /dev/loop1,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

09:59 ws tmp # tail /var/log/syslog
Aug 13 09:59:22 ws kernel: [84428.137000] SQUASHFS error: zlib_inflate returned unexpected result 0xfffffffd, srclength 8192, avail_in 385, avail_out 8192
Aug 13 09:59:22 ws kernel: [84428.138000] SQUASHFS error: sb_bread failed reading block 0x1a54a
Aug 13 09:59:22 ws kernel: [84428.138000] SQUASHFS error: Unable to read cache block [695267b:110e]
Aug 13 09:59:22 ws kernel: [84428.138000] SQUASHFS error: Unable to read inode [695267b:110e]
I checked the md5sum on the downloaded ISO image and it is correct. Is there a problem with sysrcd.dat on 0.3.7?

Thanks,
BS

admin
Site Admin
Posts: 2715
Joined: 17 Jul 2003, 09:44

Post by admin » 13 Aug 2007, 16:46

1) "Missing Operating System" suggests that the errors is the boot manager (syslinux) is not installed.
2) You cannot mount this squashfs because you are using the official version that use the gzip compression. The sysresccd version is based on lzma, that is more efficient.

Bl4deRunner
Posts: 2
Joined: 14 Aug 2007, 08:18

Maybe this helps:

Post by Bl4deRunner » 14 Aug 2007, 08:22

I've had bootproblems as well.
In my case, somehow, was because I formatted the USB-drive in Windows XP.
I tried FAT and FAT32, without success.

UNTIL I tried HP's USB Format tool. It also formatted to FAT, so I was a bit reluctant about it, but it works PERFECTLY after that!

I have NO idea what the difference is. Maybe clustersize? Can anyone confirm this?

admin
Site Admin
Posts: 2715
Joined: 17 Jul 2003, 09:44

Post by admin » 14 Aug 2007, 19:00

I don't think the cluster size matters. It's probaby related to the device name (/dev/sda1 or /dev/sda4 for example) of the usb key seen in linux, and the partitions layout.

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